CN104179341A - Method for mounting combining and positioning devices of cantilever bearing frames - Google Patents

Abstract

The invention discloses a method for installing a combined positioning device of a cantilevered load-bearing frame, comprising the following steps: 1) installing the front edge positioning device of the cantilevered load-bearing frame; 2) installing the tail fixing device of the cantilevered load-bearing frame; 3) Installation of the front edge lugs of the cables of the cantilever load-bearing frame; 4) Installation of the through-wall lugs of the cantilever load-bearing frame; 5) Installation of adjustable cables for the cables of the cantilever load-bearing frame; The installation of the connecting wall parts of the cable. The invention has the advantages of improving the installation accuracy and reliability of the cantilevered scaffold, and improving the construction efficiency; the device can be used repeatedly, reducing the construction cost and ensuring the quality.

Description

An installation method of a combined positioning device for a cantilever bearing frame

technical field

The invention relates to a building construction method, more specifically, to a method for installing a combined positioning device of a cantilever bearing frame.

Background technique

The existing construction technology of fastener-type steel pipe scaffolding for building construction has relatively simple regulations on the installation of cantilevered scaffolding and its auxiliary devices, but there are many problems in the actual construction and installation, such as safety, quality, and cost. The protection of the parts in contact with the section steel, the positioning of the vertical pole on the load-bearing frame, the reuse of the load-bearing frame fixing device, the lifting lug device and setting of the load-bearing frame, the setting method and re-application of the cantilevered scaffolding wall parts Problems, etc. These problems will affect the safety of the use of cantilevered scaffolding, affect the quality of installation operations and building protection cycle, and affect the economic benefits of scaffolding rental units. The current construction technology has problems such as poor on-site welding conditions, low welding quality, and easy fire hazards.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides an installation method of a cantilever load-bearing frame combination positioning device that is simple and convenient in construction and installation, can be used repeatedly, is safe and reliable, can save rental and use costs, and improves the safety and stability of the load-bearing frame .

A method for installing a combined positioning device of a cantilever bearing frame according to the present invention comprises the following steps:

A. Pre-embedded installation of front edge lugs:

Pre-buried and installed the front edge lugs during the construction of the concrete wall, and installed the front edge lugs on the front edge of the protruding end of the cantilever bearing frame. The cross-section of the lower shaft of the frame is in contact, the limit rib is in contact with the upper shaft cross-section of the cantilever bearing frame, and slides inward in parallel, and the front edge lug and the cantilever bearing frame are stabilized at 90° by using a triangular wooden stopper;

B. Pre-buried installation through the wall lugs:

Firstly, the sheath pipe is pre-embedded in the concrete wall according to the predetermined position. When pre-embedding, keep the tail end of the sheath pipe high on the outside and low on the inside. The length of the sheath pipe is consistent with the thickness of the concrete wall. It is used for the interval between penetration and extraction; then the threaded end of the wall-through rod is inserted from the outer port of the sheath pipe into the suspension ring, the baffle is penetrated into the thread of the wall-through rod, and the fixing nut is screwed in; when the concrete wall reaches the After the solidification period, tighten the fixing nut and adopt double nuts for reinforcement;

C. Pre-embedded installation of tail fixing device:

Pre-buried and installed the tail fixing device during the construction of the concrete floor. First, install the sheath tube. The length of the sheath tube is the same as the thickness of the concrete floor. Binding and fixing with steel bars;

Then place the biaxially symmetrical cross-section end of the cantilever bearing frame on the inner side of the floor, one end extends out of the floor to carry the cantilevered pole frame, and the other end is placed on the floor to pre-embed the sheath tube and the extended fixing bolt The corresponding middle position is used as a fixed section to install the tail fixing device;

Finally install the tail fixing device, set two sets of tail fixing devices in each cantilever bearing frame, penetrate the upper pressure plate through the fixing bolts, screw the fixing nuts into the fixing bolts, tighten the fixing nuts symmetrically, and press the cantilever Bearing frame, then tighten the second fixing nut to prevent loosening. After the tail fixing device is installed, the lower supporting plate is closely attached to the bottom of the floor, the lower section of the cantilever bearing frame is closely attached to the upper part of the floor, and the upper pressure plate is closely attached to the cantilever bearing frame. The upper section is tightly attached to form a solid whole of the concrete floor of the tail fixing device and the cantilever bearing frame;

D. Install the leading edge positioning device;

Insert the two U-shaped bolts of the front edge positioning device from the front edge of the cantilever bearing frame extension, respectively penetrate the two pressure bearing plates through the two U-shaped bolts, and place them on the cantilever bearing frame For the upper section, place the pads in the U-shaped bolts, use the fixing nuts to screw into the two ends of the U-shaped bolts, and form a four-in-one structure of the pressure bearing plate, U-shaped bolts, pads and cantilever bearing frame, and the front edge positioning device After adjustment, tighten the fixing nuts symmetrically;

E. Install cantilevered poles and crossbars:

Two cantilevered vertical rods are fixedly installed on the positioning shaft of the front edge positioning device, and a cross bar is fixedly installed between the two cantilevered vertical rods through steel pipe fasteners;

F. Install the adjustable cable:

The adjustable cable is divided into the upper cable and the lower cable. First, install the upper cable, and pass one end of the upper cable through the wall lug together with the heart ring. The upper cable that passes through is more than three rope buckles. When the distance is fixed, it starts to turn back. When the top cable that has been penetrated and turned back wraps the heart ring to form a movable rope ear hanging ring, fix the three rope buckles with the top cable according to the regulations, and the other end of the top cable is extended. Connect with turnbuckle bolts;

Then install the pull-down cable, and pass one end of the pull-down cable through the wall lug together with the heart ring. When the pull-down cable passes through the fixed distance of the three rope buckles, it starts to turn back, and the pull-down cable that passes through and turns back wraps the heart When the ring forms a movable rope ear hanging ring, fix the three rope buckles with the pull-down cable according to the regulations, and the other end of the pull-down cable is connected to the turnbuckle bolt;

Finally, install and adjust the turnbuckle bolts. The upper end of the upper cable is connected to the hanging lug through the wall, and the lower end is hung on the hook of the turnbuckle bolt. After the cable, pull cable and turnbuckle are connected together to form a straight line, adjust the turnbuckle until the cable is tight;

G. Install the wall parts:

Insert the sheath tube into the steel bar of the precast concrete wall when the concrete wall is prefabricated. The implantation position of the sheath tube meets the requirements of the special plan. Insert one end of the fixing bolt of the wall fitting into the sheath tube from the outside of the concrete wall. , until the end face of the connecting plate is in contact with the concrete wall, insert the backing plate into the fixing bolt at the part of the fixing bolt passing through the concrete wall, and screw the two fixing nuts into the fixing bolt; the prefabricated concrete wall After solidification and molding, tighten the two fixing nuts until the wall parts are fixed on the wall in a horizontal state, and the connecting rods and the wall rods are fixedly connected by steel pipe fasteners to form cantilevered vertical bars, horizontal bars and wall parts into a whole.

The cantilever bearing frame is made of H-shaped steel with biaxially symmetrical cross section.

The length of the fixed section of the cantilevered bearing frame is not less than 1.25 times the length of the cantilevered section.

The front edge lifting lug is composed of a hanging ring, vertical ribs, limit ribs and lower supporting ribs; the manufacturing process of the leading edge lifting lugs is as follows: a steel bar with a diameter of 20 mm is placed along one side of the cantilever bearing frame for 90 degrees from the lower supporting ribs. ° bending, when reaching the upper shaft section of the cantilevered load-bearing frame, it starts to bend inwardly for 8-10° to form a vertical rib with bending, and then folds back downwards to form a hanging ring with a radian in the shape of a lifting ear, and then Continue to fold back down to form a symmetrical flower basket-shaped vertical bar, and then fix it at the intersection with the lower support bar. A limit rib is welded to the upper shaft section of the cantilevered force-bearing frame at the vertical part on both sides of the vertical bar to prevent the front edge from hanging. Ears slide or fall off on overhanging bearing frame.

The wall-piercing lug is composed of a sheath pipe, a wall-piercing rod, a lifting ring, a baffle and a fixing nut; the wall-piercing rod and the hanging ring are integrated, and the front end of the wall-piercing rod is an 80-100mm threaded section, and the tail end is made of A suspension ring with a diameter of 80-100mm is used as an upper cable; the baffle is made of a rectangular steel plate, and a hole for fixing a wall-through rod is arranged at the center of the baffle.

The tail fixing device is composed of an upper pressing plate, a lower supporting plate, fixing bolts, fixing nuts and a sheath tube; the upper pressing plate is made of a rectangular steel plate with a thickness of 15-20 mm, and fixing bolts are arranged on both sides of the center of the upper pressing plate The hole used; the lower supporting plate is made of a rectangular steel plate with a thickness of 15-20mm, and two welding holes are opened at the positions corresponding to the upper pressing plate on both sides of the lower supporting plate, and the fixing bolts pass through the welding holes, and the fixed bolt ends The upper part is provided with a thread with a length of 25-35mm; the sheath tube is made of a plastic threading tube with an outer diameter of 22-25mm.

The front edge positioning device is composed of U-shaped bolts, pressure bearing plates, positioning shafts, pads and fixing nuts; the U-shaped bolts are made of steel bars into a "U" shape, and the upper ends of the U-shaped bolts are provided with threads with a length of 25-35mm. The pressure bearing plate is made of a rectangular steel plate with a thickness of 10-15mm, and two bolt holes are opened on both sides of the pressure bearing plate, and U-shaped bolts pass through the holes to fix the pressure bearing plate; the positioning shaft is fixedly connected to the pressure bearing plate. The center position of the plate; the pad is made of a rectangular steel plate with a thickness of 8-10mm, and a hole slightly larger than the diameter of the U-shaped bolt is opened at the center of the pad.

The wall connecting piece is composed of a connecting rod, a wall connecting rod, a connecting plate, a backing plate, a fixing bolt, a fixing nut and a sheath tube; The hole directly corresponding to the fixing bolt, insert the end of the fixing bolt without thread into the hole slightly lower than the connecting plate, the fixing bolt and the connecting plate are fixed and welded vertically, the end face of the connecting wall rod is spot-welded with the connecting plate plane, the Bolt holes are provided in the middle of the backing plate.

The threaded section at the upper end of the U-shaped bolt is a left-handed thread, and two fixing nuts are arranged on the thread, one is left-handed and the other is right-handed.

The tightening torque of the U-shaped bolts is not less than 40N.m and not greater than 65N.m.

The beneficial effects of the present invention are: (1) After the method of the present invention is applied, the vertical rod of the cantilever load-bearing frame is positioned stably, the tail of the load-bearing frame is stable, the upper and lower double lugs and cables are fixed, and the non-embedded wall parts can be placed at any position Use, increase the scope of use of wall parts. (2) The installation method of the present invention can improve the installation accuracy and reliability of the cantilevered scaffold, and ensure the construction quality. (3) The device of the present invention, as an accessory product of a cantilevered scaffold, can be customized and produced, which makes up for the gap that there is no accessory fixing device for a load-bearing frame at present. (4) The device of the present invention can be used repeatedly, which can reduce construction cost and improve construction efficiency.

Description of drawings

Fig. 1 is the general installation schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the leading edge positioning device in Fig. 1 of the present invention;

Fig. 3 is a schematic diagram of the tail fixing device in Fig. 1 of the present invention;

Fig. 4 is a schematic diagram of the leading edge lifting lug in Fig. 1 of the present invention;

Fig. 5 is a schematic diagram of the wall-piercing lug in Fig. 1 of the present invention;

Fig. 6 is a schematic diagram of the adjustable dragline in Fig. 1 of the present invention;

Fig. 7 is a schematic diagram of the wall connecting piece in Fig. 1 of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a method for installing a cantilever bearing frame combined positioning device of the present invention includes the following steps:

A. Pre-embedded installation of front edge lifting lug 6:

During the construction of the concrete wall 5-2, the front edge lug 6 is pre-buried and installed, and the front edge lug 6 is installed on the front edge of the protruding end of the cantilever bearing frame 2, and the hanging ring 6-1 is facing upward during installation. , the lower supporting rib 6-4 is in contact with the lower shaft section of the cantilever bearing frame 2, the limit rib 6-3 is in contact with the upper shaft section of the cantilever bearing frame 2, and slides inward in parallel, using a triangular wooden stopper to seal the front edge The lifting lug 6 and the cantilever bearing frame 2 are stable at 90°;

B. Pre-embedded installation through the wall lug 7:

First, the sheath pipe 7-1 is pre-embedded in the concrete wall 5-2 according to the predetermined position. When pre-embedding, the tail end of the sheath pipe 7-1 is kept high on the outside and low on the inside, and the length of the sheath pipe 7-1 is the same as that of the concrete wall. 5-2 The thickness is the same, and the sheath pipe 7-1 is used as a space for the front end of the wall-piercing rod 7-2 to penetrate and pull out; Penetrate the suspension ring 7-3 outside, and the baffle penetrates into the thread in the wall rod 7-2, and screw the fixing nut 7-5 in; after the concrete wall 5-2 reaches the solidification period, tighten the fixing nut 7-5 , reinforced with double nuts;

C. Pre-embedded installation of tail fixing device 4:

When the concrete floor 5-1 is constructed, the tail fixing device 4 is pre-embedded, and the sheath pipe 4-5 is installed at first. The length of the sheath pipe 4-5 is the same as the thickness of the concrete floor. The sleeve pipe 4-5, the lower supporting plate 4-2 and the fixing bolt 4-3 are bound and fixed with the reinforcing bar at the same time;

Then place the biaxially symmetrical cross-section end of the cantilever bearing frame 2 on the inner side of the floor, one end stretches out from the outside of the floor to carry the cantilever pole frame 1, and the other end is placed on the floor to pre-embed the sheath pipe 4-5 The intermediate position corresponding to the protruding fixing bolt 4-3 is used as a fixing section to install the tail fixing device 4;

Finally install the tail fixing device 4, set two sets of tail fixing devices 4 in each cantilever bearing frame 2, penetrate the upper pressure plate 4-1 from the fixing bolt 4-3, and screw the fixing nut 4-4 into the fixing bolt Among 4-3, tighten the fixing nuts 4-4 symmetrically, press the cantilever bearing frame 2, and then tighten the second fixing nut 4-4 to prevent loosening. After the tail fixing device 4 is installed, the lower supporting plate 4-2 and the floor 5-1 The bottom is close, the lower section of the cantilever bearing frame 2 is closely attached to the upper part of the floor 5-1, and the upper pressure plate 4-1 is closely attached to the upper section of the cantilever bearing frame 2, forming a tail fixing device 4 Concrete floor 5 -1 and the cantilever bearing frame 2 are a solid whole;

D. Install the leading edge positioning device 3;

Insert the two U-shaped bolts 3-1 of the front edge positioning device 3 from the front edge of the extended end of the cantilever bearing frame 2, and pass the two pressure-bearing plates 3-2 through the two U-shaped bolts 3-1 respectively. 1 penetrate, place on the upper section of the cantilever bearing frame 2, place the cushion block 3-4 in the U-shaped bolt 3-1, use the fixing nut 3-5 to screw into the two ends of the U-shaped bolt 3-1, and place the bearing Pressing plate 3-2, U-shaped bolt 3-1, cushion block 3-4 and cantilever bearing frame 2 form a four-in-one body. After the front edge positioning device 3 is adjusted, tighten the fixing nut 3-5 symmetrically;

E. Install the cantilevered pole 1 and the crossbar 1-1:

Two cantilevered vertical rods 1 are fixedly installed on the positioning shaft 3-3 of the leading edge positioning device 3, and a cross bar 1-1 is fixedly installed between the two cantilevered vertical rods 1 through a steel pipe fastener 1-2;

F. Install the adjustable cable:

The adjustable cable is divided into an upper cable 8-1 and a lower cable 8-2. First, install the upper cable 8-1, and put one end of the upper cable 8-1 from the wall hanging ear 7 together with the heart ring 8-3 Go out together, when the upper stay cable 8-1 that passes out exceeds the fixed distance of three rope buckles 8-4, it starts to turn back, and the upper stay cable 8-1 after passing through and turned back wraps the heart ring 8-3 to form a movable When the rope lug 8-5 hangs in the form of a ring, fix the three rope buckles 8-4 with the upper stay cable 8-1 according to the regulations, and the other end of the upper stay cable 8-1 elongated is connected with the turnbuckle bolt 9;

Then install the drop cable 8-2, and pass one end of the drop cable 8-2 together with the heart ring 8-3 from the wall hanging ear 7, and the drop cable 8-2 that passes through exceeds three rope buckles 8-4 When the fixed distance starts to turn back, when the pull-down cable 8-2 wrapping the heart ring 8-3 after penetrating and turning back forms a movable rope ear 8-5 hanging ring shape, connect the three rope buckles 8-4 with the pull-down cable according to regulations. 8-2 is fixed, and the other end of the extension of the pull-down cable 8-2 is connected with the basket bolt 9;

Finally install and adjust the turnbuckle bolt 9, the upper end of the upper pull cable 8-1 is connected with the wall-through lug 7, the lower end is hung on the hook of the turnbuckle bolt 9, the lower cable 8-2 is hung on the hook of the turnbuckle bolt 9, and the lower end is hung into the hook of the turnbuckle bolt 9. In the hanging ring 6-1 of the lifting lug 6 at the front edge, after the upper cable 8-1, the lower cable 8-2, and the turnbuckle bolt 9 are connected to form a straight line, adjust the turnbuckle bolt 9 until the cable is tight;

G. Install the wall piece 10:

The sheath pipe 10-7 is implanted into the steel bar of the precast concrete wall 5-2 when the prefabricated concrete wall 5-2 is in place, and the implantation position of the sheath pipe 10-7 meets the requirements of the special plan, and the fixing of the connecting wall piece 10 One end of the bolt 10-5 penetrates the sheath pipe 10-7 from the outside of the concrete wall 5-2 until the end surface of the connecting plate 10-3 contacts the concrete wall 5-2, and passes through the concrete wall 5-2 Fix the position of the bolt 10-5, insert the backing plate 10-4 into the fixing bolt 10-5, screw the two fixing nuts 10-6 into the fixing bolt 10-5; wait for the precast concrete wall 5-2 to solidify After forming, tighten the two fixing nuts 10-6 until the wall fitting 10 is fixed on the wall in a horizontal state, and the connecting rod 10-1 and the connecting rod 10-2 are fixedly connected through the steel pipe fastener 1-2, The cantilevered vertical bar 1, the cross bar 1-1 and the wall connecting piece 10 are formed as a whole.

The cantilevered load-bearing frame 2 is made of biaxially symmetrical H-shaped steel, and the length of the fixed section of the cantilevered load-bearing frame 2 is not less than 1.25 times the length of the cantilevered section.

As shown in Figure 4, the front edge lug 6 is composed of a hanging ring 6-1, a vertical rib 6-2, a limit rib 6-3 and a lower support rib 6-4; the manufacturing process of the front edge lug 6 It is: bend the steel bar with a diameter of 20mm from the lower supporting bar 6-4 along one side of the cantilever bearing frame 2 at 90°, and start to fold inwardly when reaching the upper shaft section of the cantilever bearing frame 2 for 8-10° ° Form the vertical rib 6-2 with bending, then fold back downwards to form a hanging ring 6-1 in a radian with hanging ears, and then continue to fold back downwards to form a symmetrical flower basket-shaped vertical rib 6-2, and then connect with the lower Fix at the intersection of support ribs 6-4, and weld a limit rib 6-3 on the upper shaft section of the cantilever bearing frame 2 at the vertical position on both sides of the vertical rib 6-2 to prevent the front edge lifting lug 6 from being placed on the cantilever bearing. Sliding or falling off on the power frame 2.

As shown in Figure 5, the wall penetrating lug 7 is composed of a sheath pipe 7-1, a wall penetrating rod 7-2, a lifting ring 7-3, a baffle plate 7-4 and a fixing nut 7-5; Rod 7-2 and suspension ring 7-3 are a whole, and the front end of wall penetration rod 7-2 is an 80-100mm threaded segment, and the tail end is made into suspension ring 7-3 with a diameter of 80-100mm, which is used as upper stay cable 8-1; The baffle 7-4 is made of a rectangular steel plate, and a hole for fixing the wall-through rod 7-2 is arranged at the center of the baffle 7-4.

As shown in Figure 3, the tail fixing device 4 is composed of an upper pressing plate 4-1, a lower supporting plate 4-2, a fixing bolt 4-3, a fixing nut 4-4 and a sheath pipe 4-5; the upper pressing plate 4-1 is made of a rectangular steel plate with a thickness of 15-20mm, and holes for fixing bolts 4-3 are arranged on both sides of the center of the upper platen 4-1; the lower supporting plate 4-2 is made of a rectangular plate with a thickness of 15-20mm. Made of steel plate, there are two welding holes on both sides of the lower supporting plate 4-2 corresponding to the upper platen 4-1, the fixing bolt 4-3 passes through the welding hole, and the end of the fixing bolt 4-3 is provided with a length 25-35mm thread; the sheath pipe 4-5 is made of a plastic threading pipe with an outer diameter of 22-25mm.

As shown in Figure 2, the front edge positioning device 3 is composed of a U-bolt 3-1, a pressure plate 3-2, a positioning shaft 3-3, a spacer 3-4 and a fixing nut 3-5; the U The U-shaped bolt 3-1 is made of steel bar into a "U" shape, and the upper end of the U-shaped bolt 3-1 is provided with a thread with a length of 25-35 mm; the pressure-bearing plate 3-2 is made of a rectangular steel plate with a thickness of 10-15 mm. Two bolt holes are opened on both sides of the plate 3-2, and U-shaped bolts 3-1 pass through the holes to fix the pressure bearing plate 3-2; the positioning shaft 3-3 is fixedly connected to the center of the pressure bearing plate 3-2 ; The pad 3-4 is made of a rectangular steel plate with a thickness of 8-10mm, and a hole slightly larger than the diameter of the U-shaped bolt 3-1 is opened at the center of the pad 3-4.

As shown in Figure 7, the wall connecting piece 10 is composed of connecting rod 10-1, connecting wall rod 10-2, connecting plate 10-3, backing plate 10-4, fixing bolt 10-5, fixing nut 10-6 and The sheath pipe 10-7 is composed of; the connecting wall bar 10-2 is welded and fixed with the connecting plate 10-3, and the center position of the connecting plate 10-3 is provided with a hole directly corresponding to the fixing bolt 10-5, and the fixing bolt 10-5 One end without threaded buckle is inserted into the hole slightly lower than the connection plate 10-3, the fixing bolt 10-5 is fixed and welded vertically with the connection plate 10-3, and the end surface of the connecting wall rod 10-2 is connected with the connection plate 10 -3 Plane spot welding, and a bolt hole is opened in the middle of the backing plate 10-4.

The thread section at the upper end of the U-shaped bolt 3-1 is a left-handed thread, and two fixing nuts are arranged on the thread, one is left-handed and the other is right-handed, and the tightening torque of the U-shaped bolt 3-1 is not less than 40N.m. Not more than 65N.m.

The method for disassembling the device after installation and use of the present invention is as follows:

(1) Adjust the turnbuckle bolt 9 to loosen the upper cable 8-1 and the lower cable 8-2, and remove the turnbuckle bolt 9, the upper cable 8-1 and the lower cable 8-2;

(2) Disassemble the cantilevered vertical bar 1 and the cross bar 1-1;

(3) Disassemble the connecting rod 10-1 and the wall piece 10;

(4) Remove the wall-through lug 7;

(5) Disassemble the leading edge positioning device 3;

(6) Remove the tail fixing device 4;

(7) Disassemble the cantilever bearing frame 2;

(8) Combine and pretighten the various parts to prevent them from being scattered and lost for reuse.

Example

In the high-rise construction of a large shopping mall in a city, the 60-meter-high commercial building project adopted the installation method of the combined positioning device of the cantilevered bearing frame, which successfully solved the problem of the lack of attachments of the cantilevered scaffolding, and the combined positioning of the cantilevered bearing frame The installation of the device is accurate, convenient and simple to install, there is no fire source on site, steel is saved, the comprehensive cost of leasing is low, and safe and reliable civilized construction is achieved. Although the production of the combined positioning device of the cantilever bearing frame requires a one-time cost investment, the one-time cost investment is only 1/2 of the previous cost investment after the cost calculation of the project, and the device can be reused at least 10 times. Great cost savings.

Claims (10)

1. the heavy frame integrated positioning device mounting method of encorbelmenting, is characterized in that, comprises the following steps:

A, pre-buried installation leading edge hanger (6):

Pre-buried installation leading edge hanger (6) in the time that concrete wall (5-2) is constructed, leading edge hanger (6) is arranged on to the leading edge position of the external part of the heavy frame of encorbelmenting (2), when installation by link (6-1) upward, subiculum muscle (6-4) contacts with the lower shaft section of the heavy frame of encorbelmenting (2), limit rib (6-3) contacts with the upper shaft section of the heavy frame of encorbelmenting (2), parallel inside slippage, is used triangle stopper that leading edge hanger (6) and the heavy frame (2) of encorbelmenting are stabilized in to 90 ° of states;

B, pre-buried installation hanger through walls (7):

First protecting pipe (7-1) is embedded in concrete wall (5-2) by precalculated position, when pre-buried, keep protecting pipe (7-1) tail end high outside and low outside, protecting pipe (7-1) length and concrete wall (5-2) consistency of thickness, the use at the interval that protecting pipe (7-1) therefrom penetrates and extracts as bar through walls (7-2) front end; Then bar through walls (7-2) end of thread is penetrated to suspension ring (7-3) outside from protecting pipe (7-1) collar extension, baffle plate penetrates in the middle screw thread of bar through walls (7-2), and hold-down nut (7-5) is screwed into; Reach after freezing period until concrete wall (5-2), hold-down nut (7-5) is tightened, take double nut to reinforce;

C, pre-buried installation tail fixing device (4):

Pre-buried installation tail fixing device (4) in the time that concrete floor (5-1) is constructed, protecting pipe (4-5) is first installed, the length of protecting pipe (4-5) is identical with thickness of concrete floor, in the time of the assembling reinforcement of concrete floor formwork, protecting pipe (4-5), bottom plate (4-2) and set bolt (4-3) are fixed with reinforcing bar binding simultaneously;

Then the twin shaft symmetrical section end of the heavy frame of encorbelmenting (2) is placed in to surrounding inner side on floor face, one end is stretched out floor outside and is carried the vertical rod frame (1) of encorbelmenting, centre position corresponding to set bolt (4-3) that the other end is placed in pre-buried protecting pipe (4-5) on floor face and stretches out, installs tail fixing device (4) as canned paragraph;

Tail fixing device (4) is finally installed, two groups of tail fixing devices (4) are set in the every heavy frame of encorbelmenting (2), top board (4-1) is penetrated from set bolt (4-3), adopt hold-down nut (4-4) to be screwed among set bolt (4-3), symmetry is tightened hold-down nut (4-4), the compression heavy frame (2) of encorbelmenting, tighten again second hold-down nut (4-4) and prevent absent-mindedness, tail fixing device (4) is installed rear bottom plate (4-2) and is adjacent to floor (5-1) bottom, encorbelment heavy frame (2) lower section and floor (5-1) top is adjacent to, top board (4-1) is adjacent to the upper section of the heavy frame (2) of encorbelmenting, form firmly entirety of tail fixing device (4) concrete floor (5-1) and the heavy frame of encorbelmenting (2),

D, installation leading edge positioner (3);

Two U-bolts (3-1) of leading edge positioner (3) are penetrated from the leading edge position of the heavy frame of encorbelmenting (2) external part respectively, two bearing plates (3-2) are penetrated by two U bolts (3-1) respectively, be placed in the heavy frame of encorbelmenting (2) cross section, top, cushion block (3-4) is placed in to U bolt (3-1), use hold-down nut (3-5) to be screwed into U bolt (3-1) two ends, by bearing plate (3-2), U bolt (3-1), cushion block (3-4) and the heavy frame of encorbelmenting (2) form quaternity, after leading edge positioner (3) is adjusted, symmetry is tightened hold-down nut (3-5),

E, encorbelment vertical rod (1) and cross bar (1-1) are installed:

In locating shaft (3-3) two vertical rods of encorbelmenting of upper fixed installation (1) of leading edge positioner (3), between two vertical rods of encorbelmenting (1), fixedly mount cross bar (1-1) by steel tube fastener (1-2);

F, adjustable drag-line is installed:

Adjustable drag-line is divided into drag-line (8-1) and downhaul (8-2), first install drag-line (8-1), one end of upper drag-line (8-1) is passed in the lump together with capel (8-3) from hanger through walls (7), the upper drag-line (8-1) passing starts to turn back while exceeding three slings (8-4) fixed range, penetrate and turn back after upper drag-line (8-1) parcel capel (8-3) while forming mobilizable rope ear (8-5) link shape, in accordance with regulations by fixing to three slings (8-4) and upper drag-line (8-1), the other end that upper drag-line (8-1) extends is connected with flower basket bolt (9),

Downhaul (8-2) is then installed, one end of downhaul (8-2) is passed in the lump together with capel (8-3) from hanger through walls (7), the downhaul (8-2) passing starts to turn back while exceeding three slings (8-4) fixed range, penetrate and turn back after downhaul (8-2) parcel capel (8-3) while forming mobilizable rope ear (8-5) link shape, by fixing to three slings (8-4) and downhaul (8-2), the other end that downhaul (8-2) extends is connected with flower basket bolt (9) in accordance with regulations;

Finally install and regulate flower basket bolt (9), the upper end of upper drag-line (8-1) is connected with hanger through walls (7), lower end hangs on the hook of flower basket bolt (9), downhaul (8-2) is hung on the hook of flower basket bolt (9), lower end hangs in the link (6-1) of leading edge hanger (6), upper drag-line (8-1), downhaul (8-2), flower basket bolt (9) are connected as a single entity and form after straight line, regulate flower basket bolt (9) to drag-line to tighten;

G, installation wall-connecting piece (10):

Protecting pipe (10-7) is implanted in the reinforcing bar of precast concrete body of wall (5-2) when precast concrete body of wall (5-2), protecting pipe (10-7) implantation position meets special scheme requirement, one end of the set bolt of wall-connecting piece (10) (10-5) is penetrated to protecting pipe (10-7) from concrete wall (5-2) outside, only contact with concrete wall (5-2) to junction plate (10-3) end face, at the position of set bolt (10-5) that passes concrete wall (5-2), backing plate (10-4) is inserted in set bolt (10-5), two hold-down nuts (10-6) are screwed among set bolt (10-5), after precast concrete body of wall (5-2) coagulation forming, two hold-down nuts (10-6) are tightened, be fixed on body of wall horizontal to wall-connecting piece (10), connecting rod (10-1) is fixedly connected with by steel tube fastener (1-2) with wall connecting rod (10-2), forms encorbelment vertical rod (1), cross bar (1-1) and wall-connecting piece (10) in aggregates.

2. the one according to claim 1 heavy frame integrated positioning device mounting method of encorbelmenting, is characterized in that, described in the heavy frame (2) of encorbelmenting made by the H shaped steel of twin shaft symmetrical section.

3. the one according to claim 2 heavy frame integrated positioning device mounting method of encorbelmenting, is characterized in that, described in the encorbelment canned paragraph length of heavy frame (2) be not less than 1.25 times of the segment length of encorbelmenting.

4. the one according to claim 1 heavy frame integrated positioning device mounting method of encorbelmenting, is characterized in that, described leading edge hanger (6) is made up of link (6-1), stud (6-2), limit rib (6-3) and subiculum muscle (6-4), described leading edge hanger (6) manufacturing process is: diameter 20mm reinforcing bar is started along encorbelmenting 90 ° of bendings of heavy frame (2) one side from subiculum muscle (6-4), during to the upper shaft section of the heavy frame of encorbelmenting (2), start inwardly to fold the stud (6-2) of bending 8-10 ° formation with bending, the radian of turning back into downwards again with hanger shape forms link (6-1), continue to turn back downwards to be again shaped as symmetrical flower-basket type stud (6-2), be fixed with subiculum muscle (6-4) confluce again, a shaft section limit rib of welding (6-3) on the vertical position of stud (6-2) two sides is encorbelmented heavy frame (2), prevent that leading edge hanger (6) from sliding or coming off on the heavy frame of encorbelmenting (2).

5. the one according to claim 1 heavy frame integrated positioning device mounting method of encorbelmenting, it is characterized in that, described hanger through walls (7) is made up of protecting pipe (7-1), bar through walls (7-2), suspension ring (7-3), baffle plate (7-4) and hold-down nut (7-5); Described bar through walls (7-2) and suspension ring (7-3) are an entirety, and bar through walls (7-2) front end is 80-100mm thread segment, and tail end is made the suspension ring (7-3) of diameter 80-100mm, use as upper drag-line (8-1); Described baffle plate (7-4) is made up of rectangular steel plates, is provided with the hole of fixing bar through walls (7-2) in the center of baffle plate (7-4).

6. the one according to claim 1 heavy frame integrated positioning device mounting method of encorbelmenting, it is characterized in that, described tail fixing device (4) is made up of top board (4-1), bottom plate (4-2), set bolt (4-3), hold-down nut (4-4) and protecting pipe (4-5); Described top board (4-1) is made up of the rectangular steel plates of thickness 15-20mm, is provided with the hole of set bolt (4-3) use in top board (4-1) both sides, centre; Described bottom plate (4-2) is made up of the rectangular steel plates of thickness 15-20mm, offer two welding holes in the position corresponding with top board (4-1), bottom plate (4-2) both sides, described set bolt (4-3) is through welding hole, and set bolt (4-3) end is provided with length 25-35mm screw thread; Described protecting pipe (4-5) is made up of external diameter 22-25mm plastics penetration pipe.

7. the one according to claim 1 heavy frame integrated positioning device mounting method of encorbelmenting, it is characterized in that, described leading edge positioner (3) is made up of U-bolt (3-1), bearing plate (3-2), locating shaft (3-3), cushion block (3-4) and hold-down nut (3-5); Described U bolt (3-1) adopts reinforcing bar to make " U " shape, and U bolt (3-1) upper end is provided with length 25-35mm screw thread; Described bearing plate (3-2) is made up of thickness 10-15mm rectangular steel plates, offers two bolts hole in bearing plate (3-2) both sides, and U bolt (3-1) passes fixing bearing plate (3-2) from hole; Described locating shaft (3-3) is fixedly connected on the center of bearing plate (3-2); Described cushion block (3-4) is made up of thickness 8-10mm rectangular steel plates, offers in cushion block (3-4) center the hole that is slightly larger than U bolt (3-1) diameter.

8. the one according to claim 1 heavy frame integrated positioning device mounting method of encorbelmenting, it is characterized in that, described wall-connecting piece (10) is made up of connecting rod (10-1), wall connecting rod (10-2), junction plate (10-3), backing plate (10-4), set bolt (10-5), hold-down nut (10-6) and protecting pipe (10-7); Described wall connecting rod (10-2) is welded and fixed with junction plate (10-3), described junction plate (10-3) center is provided with the hole direct corresponding with set bolt (10-5), one end of set bolt (10-5) without screw thread is inserted in the hole a little less than junction plate (10-3), described set bolt (10-5) fixing welding vertical with junction plate (10-3), described wall connecting rod (10-2) end face and the welding of junction plate (10-3) planar point, offer bolt hole in the middle of described backing plate (10-4).

9. the one according to claim 7 heavy frame integrated positioning device mounting method of encorbelmenting, is characterized in that, described U bolt (3-1) upper end thread segment is left-right rotary screw thread, is provided with two hold-down nuts on screw thread, and one is left-handed and another is dextrorotation.

10. the one according to claim 9 heavy frame integrated positioning device mounting method of encorbelmenting, is characterized in that, described U bolt (3-1) is tightened torsional moment and is not less than 40N.m, is not more than 65N.m.