CN108019040A - A kind of high-rise building transfer floor Bailey bracket platform construction method - Google Patents
A kind of high-rise building transfer floor Bailey bracket platform construction method Download PDFInfo
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- CN108019040A CN108019040A CN201710326359.1A CN201710326359A CN108019040A CN 108019040 A CN108019040 A CN 108019040A CN 201710326359 A CN201710326359 A CN 201710326359A CN 108019040 A CN108019040 A CN 108019040A
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- bailey
- jacking
- conversion layer
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- formwork
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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Abstract
The present invention relates to a kind of high-rise building transfer floor Bailey bracket platform construction method, belong to technical field of building construction.This method mainly includes installation lattice column, sets up Bailey beam, lift I-beam, build big beam form bottom, sandwich boards for construction plate, construction conversion layer step.Compared with prior art, it is easy to implement, safe and reliable present invention can ensure that on the premise of quality, there are many remarkable advantages.
Description
Technical field
The present invention relates to a kind of building conversion layer Bailey bracket platform, especially a kind of high-rise building transfer floor Bailey bracket is put down
Platform, while construction method is also related to, belong to technical field of building construction.
Background technology
Skyscraper usually needs to construct conversion layer Bailey bracket platform because of the building structure change between floor.
Retrieval understands that the Chinese invention patent of Application No. 201010135856.1 discloses a kind of skyscraper beam type knot
The construction method of structure conversion layer, this method include the step such as design and arrangement, reinforced bar engineering, concrete works of form bracing system
Suddenly, it is introduced that having the advantages that efficient, quality is easy to control, is low cost, easy for construction.But actually due to its conversion layer
Using full hall scaffold, support shuttering makes of rough ground, not only needs to put into more artificial, material, but also there are following
Problem：1）Need to be in underground and the first floor（-2、-1、1）Set up three layers of full hall supporting rack, it is difficult to ensure that the support system upright bar of each layer exists
Same position, stress are bad；2）The full hall supporting rack of subterranean layer must could when first floor beam slab concrete reaches design strength
Remove, therefore influence the construction period of conversion layer；3）It is only applicable to conversion layer and is in low layer（Such as two layers）.
The Chinese invention patent of Application No. 201410337666.6 discloses a kind of Bailey beam pendent form support system
Construction, includes the vertically and horizontally stress truss of Bailey beam composition；Sunpender is equipped with horizontal Bailey beam, the sunpender passes through mixed
Solidifying soil layer construction bed die hangs two-way I-steel bearing platform；Steel pipe scaffold form bracing system is equipped with above the platform,
The transverse direction Bailey beam is arranged vertically within longitudinal Bailey beam by spacing, and longitudinal Bailey beam is supported on frame structure or interim branch
In support.Its engineering method includes：Increase build-up layers top and set up Bailey beam form bracing system suspension system, lower laying falsework behaviour in advance
Make platform.Its advantage is to be not take up construction site, suitable for armored concrete or the aerial vestibule of shaped steel combination structure, tall and big
Zhongting and conversion layer engineering cast-in-place concrete construction, are particularly suitable for original structure not occurring the addition of stress relation.It is real
Trample and show, the above-mentioned prior art has the disadvantage that：1）When lacking frame support structure, it is necessary to set temporary support to undertake shellfish
Lei Liang, construction inconvenience；2）Form bracing system needs to carry out precompressed to stent after the completion of setting up, and difficulty of construction is larger.Especially
It is that concrete structure bed die is supported on bearing platform in suspension, it is not only high to the quality requirement of screw-thread steel sunpender, but also
Easily by construction loading effect, because the quality of sunpender directly affects the stabilization of " bearing platform " of flat thread steel sunpender suspension
Property, and the horizontal impact ability of the generation such as hanging rod structure is to bearing in work progress, casting concrete is extremely limited, therefore, it is difficult to
Keep stablizing, not only influence construction quality, also there are some potential safety problems.
The content of the invention
It is an object of the invention to：In view of the problems of the existing technology, propose it is a kind of it is not only easy to implement, be easy to ensure
Quality, and safe and reliable high-rise building transfer floor Bailey bracket platform construction method.
In order to achieve the above object, high-rise building transfer floor Bailey bracket platform construction method of the present invention includes following basic step
Suddenly：
The first step, installation lattice column --- the position difference installation interval below the corresponding conversion layer crossbeam of building basis both sides
The lattice column of distribution, capital are extremely concordant with floor to be converted；
Second step, set up Bailey beam --- and lifting sets up one group of difference main support on homonymy lattice column and floor to be converted
Bailey beam；
3rd step, lifting I-beam --- lifting erection is fixed in Bailey beam and the overhanging interval in normal thereto one group of both ends
I-beam is distributed, safe protective covering is laid with I-beam and overhanging end builds builder's jack；
4th step, build big beam form bottom --- and the vertical jacking being spaced apart is propped up on I-beam, and disposes at the top of jacking and props up respectively
Support the flatrack steel pipe of crossbeam and interlayer formwork for placing；
5th step, sandwich boards for construction plate --- build beam placement template on jacking support flatrack steel pipe and to be connected to both sides big
Interlayer formwork for placing between in the middle part of beam formwork for placing, and I-girder is disposed in beam placement template, after having bound reinforcing bar
Casting concrete, beam placement template are poured to half height；
6th step, construction conversion layer --- in the sandwich plate and height poured across the vertical jacking being spaced apart of branch on I-steel, and
At the top of the jacking after the flatrack steel pipe of placement support conversion layer formwork for placing, structure be connected to both sides beam placement template top it
Between conversion layer formwork for placing, and reinforcing bar has been bound in conversion layer formwork for placing, together with crossbeam top casting concrete.
Compared with prior art, method using the present invention need not set up full hall supporting rack, load shape body ideal, be easy to protect
Hinder the construction period of conversion layer, from the limitation of conversion layer floor position；And it is easy to implement, support the Bailey bracket platform of formation
It is reliable and stable, it is ensured that quality and construction safety.
Of the invention further improve be, the lattice column of the first step using tower crane standard tower section from bottom to top section by section
Splicing；During splicing installation, using tool-type operating platform, the operating platform has the concave table top that section bar is connected
Peripheral frame, covering fixed cover board in the peripheral frame upper surface is wide in the opening of the peripheral frame to match with the gabarit of standard tower section, it is described on
Periphery is welded and fixed guardrail.
Further improve of the invention is, in the 4th step, each jacking is had female strut by top and twisted
Pressure pin composition in internal thread, the top of the pressure pin are connected the prop head of bracketing flatrack steel pipe, lead between the strut of each jacking
Cross the upper and lower cross bar being spaced apart to be connected, form frame structure.
Brief description of the drawings
Fig. 1 is the installation lattice column step structure diagram of one embodiment of the invention.
Fig. 2 .1 are the structure diagram that Fig. 1 embodiments install lattice column operating platform.
Fig. 2 .2 are the vertical view figure structure schematic representation of Fig. 2 .1.
Fig. 2 .3 are the A direction views of Fig. 2 .2.
Fig. 3 is the Bailey bracket structure diagram that Fig. 1 embodiments use.
Fig. 4 is the erection Bailey beam step schematic diagram of Fig. 1 embodiments.
Fig. 5 is the lifting I-beam step schematic diagram of Fig. 1 embodiments.
Fig. 6 and Fig. 7 builds big beam form bottom step schematic diagram for Fig. 1 embodiments.
Fig. 8 .1 to 8.7 are the crossbeam reinforcing bar process of binding schematic diagram of Fig. 1 embodiments.
Fig. 9 is the sandwich boards for construction plate step schematic diagram of Fig. 1 embodiments.
Figure 10 is the construction conversion layer step schematic diagram of Fig. 1 embodiments.
Embodiment
Embodiment one
The high-rise building transfer floor of the present embodiment is on nine layers, its side has interlayer, and opposite side does not have interlayer, Bailey bracket
The construction method of platform as shown in the figure, construct according to the following steps：
The first step, installation lattice column --- as shown in Figure 1, in the lattice column foundation 1-2 two being connected as a single entity with building basis 1-1
The lattice column 1 that position below the corresponding conversion layer crossbeam of side is distributed by pre-embedded anchoring bolts 1-3 installation intervals respectively, this implementation
The lattice column 1 of example is spliced section by section from bottom to top using the standard tower section 1-4 of tower crane；
During splicing installation, using the tool-type operating platform 2 shown in Fig. 2 .1, Fig. 2 .2, Fig. 2 .3, which has channel steel section bar
Checkered steel plate 2-2 is fixed in the covering of the concave that is welded table top peripheral frame 2-1, peripheral frame 2-1 upper surfaces, wide in its opening and mark
The gabarit of quasi- tower section matches, and upper surface periphery is welded and fixed guardrail 2-3 made of steel pipe；Welding is solid on the outside of peripheral frame 2-1 one end
Even two cantilever beam 2-4 stretched into towards opening direction in opening, the both sides of its openend, which are respectively welded, is fixed with level with holes
Otic placode 2-5, outer weekly interval welding are fixed with vertical otic placode 2-6 with holes；Operating platform 2 is installed on the standard of having installed during use
Outside tower section, lift by crane by otic placode and be connected with having installed standard tower section, cantilever beam insertion has installed standard Ta Jienei and played safety
Guaranteeing role；After treating that the installation in place of current lattice column section fixes, top will be moved on operating platform, you can carry out a section
The installation of lattice column section；So circulation, until the capital of lattice column reaches required absolute altitude, very convenient safety.
Second step, set up Bailey beam --- and as shown in Figure 3 and Figure 4, lifting sets up one group of difference main support in homonymy lattice
Bailey beam 3 on structure column 1 and floor L to be converted；As the case may be, the both ends of Bailey beam 3 can shelve corresponding solid at the scene
On fixed steel corbel.
3rd step, lifting I-beam --- it is fixed on as shown in figure 5, lifting is set up in Bailey beam and normal thereto one group
The overhanging I-beam 5 for being spaced apart high 400mm in both ends, is laid with safe protective covering, the protective layer of the present embodiment on I-beam 5
Specifically by big eye safety net 5-1, expanded metal lath 5-2 thereon（Grid 30x40mm, string diameter 2.0mm）, frame is on expanded metal lath 5-2
Crisscross interval steel pipe（ф 48x wall thickness 3.6mm）5-3,5-4, and steel lattice of the load on crisscross interval steel pipe
Grid 5-5（It is commonly called as steel bar piece）Form, wherein 5-1 mainly plays safety protection function to the personnel of upper operating platform, and 5-2 mainly prevents
Only small instruments and tools falls, and the larger all materials of 5-3,5-4 primary protection fall.Meanwhile as shown in fig. 6, following have the outer of interlayer side
Stretch end and build builder's jack 6, opposite side is then fixed high across I-steel 4 without sandwiched area.
4th step, build big beam form bottom --- as shown in fig. 7, the vertical jacking 7-1 being spaced apart is propped up on I-beam 5, each top
Support 7-1 is made of the pressure pin 7-U that top has female strut 7-D and is screwed in internal thread, therefore can be in a certain range
Inside heighten on demand, the top of pressure pin 7-U is connected the prop head of bracketing flatrack steel pipe 7-2, between each jacking 7-1 by between the upper and lower every point
The cross bar 7-3 of cloth is connected, and forms frame structure；Flatrack steel pipe 7-2 is used to support crossbeam and interlayer formwork for placing；Support crossbeam
Jacking is smaller than the jacking spacing of supports layer, so as to form rational load ability.
5th step, sandwich boards for construction plate --- as shown in figure 9, building beam placement on jacking 7-1 support flatrack steel pipes 7-2
Template and the interlayer formwork for placing being connected between the beam placement template middle part of both sides；Crossbeam construction process such as Fig. 8 .1 extremely scheme
It is 8.7 shown：
Step 1: paving beam bottom muscle --- as shown in Fig. 8 .1, it is laid with the bottom muscle of beam placement template bottom interval distribution（That is bottom
Reinforcing bar）9-1, and install beam pad（It is commonly called as stirrup）9-2；
Step 2: lifting crossbeam --- as shown in Fig. 8 .2, I-girder 9 is lifted into in place in the middle part of beam placement template, welding
Beam pad 9-2 is prescinded after fixation；
Step 3: paving beam gluten --- as shown in Fig. 8 .3, the gluten 9- being spaced apart is laid with above I-girder 9 in place
3；
Step 4: wear beam waist muscle --- as shown in Fig. 8 .4, it is laid between 9 on both sides of the middle of beam placement template both sides and I-girder
Every the side muscle 9-4 of distribution, and by both ends elbow, hook is spaced apart waist muscle 9-5 and I-girder 9 around corresponding side muscle 9-4 respectively
Weldering connects, and forms rib cage shape structure；
Step 5: binding stirrup --- as shown in Fig. 8 .5, binding is spaced apart the stirrup 9-6 around beam placement template section；
Step 6: envelope beam side --- as shown in Fig. 8 .6, all Side shuttering 9-7 of beam placement are closed, reserves and pours mouth, side
Split bolt 9-8 reinforcing of the face die plate 9-7 lower parts through sandwich flitch 9-9；
Step 7: beam placement --- as shown in Fig. 8 .7, casting concrete, pours in beam placement template to half height；
After routinely having bound reinforcing bar in interlayer formwork for placing at the same time, casting concrete.
6th step, construction conversion layer --- it is as shown in Figure 10, vertical across being propped up on I-steel 4 in the sandwich plate G and height poured
The jacking being spaced apart, and at the top of the jacking after the flatrack steel pipe of placement support conversion layer formwork for placing, structure is connected to both sides
Conversion layer formwork for placing between beam placement template top, and reinforcing bar has been bound in conversion layer formwork for placing, together with crossbeam
Top casting concrete together.
It was verified that the present embodiment is compared with prior art, it is not only easy to implement efficient, safe and reliable, it is ensured that matter
Amount, also with following remarkable advantage：
1st, the present embodiment conversion layer uses lattice column, Bailey beam, about 277 tons of I-steel, and as using traditional full hall scaffold
High-supported formwork is set up, then needs about 1044 tons of steel, therefore saves all material significant effects.
2nd, tool-type operating platform is easy to operate, securely and reliably, not only can when installing same lattice column Reusability,
And it is used in turn between each lattice column.
When the 3rd, setting up high-supported formwork using traditional full hall scaffold, the first floor, -1 layer, -2 layers of striking time will be extended, and
Influence the decorations progress of basement；And use the method for the present embodiment completely will not the eye wiping first floor, -1 layer, -2 layers of form removal
Time, will not influence the progress of decorations.
4th, traditional full hall scaffold, which is set up, needs a large amount of places to stack all materials, adds tower crane load, influences other processes
Construction；And place needed for the Bailey bracket of the present embodiment is substantially less, and it is stackable in tower crane radius, after the completion of assembled
Directly lifting greatly facilitates construction to construction floor.
5th, Bailey bracket gross weight used in the present embodiment be only using high-supported formwork 1/4, and fill, tear open the time be obviously shortened,
Security protection difficulty is also substantially reduced.
Claims (4)
1. a kind of high-rise building transfer floor Bailey bracket platform construction method, it is characterised in that comprise the following steps：
The first step, installation lattice column --- the position difference installation interval below the corresponding conversion layer crossbeam of building basis both sides
The lattice column of distribution, capital are extremely concordant with floor to be converted；
Second step, set up Bailey beam --- and lifting sets up one group of difference main support on homonymy lattice column and floor to be converted
Bailey beam；
3rd step, lifting I-beam --- lifting erection is fixed in Bailey beam and the overhanging interval in normal thereto one group of both ends
I-beam is distributed, safe protective covering is laid with I-beam and overhanging end builds builder's jack；
4th step, build big beam form bottom --- and the vertical jacking being spaced apart is propped up on I-beam, and disposes at the top of jacking and props up respectively
Support the flatrack steel pipe of crossbeam and interlayer formwork for placing；
5th step, sandwich boards for construction plate --- build beam placement template on jacking support flatrack steel pipe and to be connected to both sides big
Interlayer formwork for placing between in the middle part of beam formwork for placing, and I-girder is disposed in beam placement template, after having bound reinforcing bar
Casting concrete, beam placement template are poured to half height；
6th step, construction conversion layer --- in the sandwich plate and height poured across the vertical jacking being spaced apart of branch on I-steel, and
At the top of the jacking after the flatrack steel pipe of placement support conversion layer formwork for placing, structure be connected to both sides beam placement template top it
Between conversion layer formwork for placing, and reinforcing bar has been bound in conversion layer formwork for placing, together with crossbeam top casting concrete.
2. high-rise building transfer floor Bailey bracket platform construction method according to claim 1, it is characterised in that：Described first
The lattice column of step is spliced section by section from bottom to top using the standard tower section of tower crane；During splicing installation, using tool-type operating platform, institute
The concave table top peripheral frame that there is operating platform section bar to be connected is stated, the fixed cover board of peripheral frame upper surface covering is described
Wide in the opening of peripheral frame to match with the gabarit of standard tower section, the upper surface periphery is welded and fixed guardrail.
3. high-rise building transfer floor Bailey bracket platform construction method according to claim 2, it is characterised in that：Described 4th
In step, each jacking is made of the pressure pin that top has female strut and is screwed in internal thread, and the top of the pressure pin is connected
The prop head of bracketing flatrack steel pipe, is connected by the upper and lower cross bar being spaced apart between the strut of each jacking, forms frame structure.
4. high-rise building transfer floor Bailey bracket platform construction method according to claim 3, it is characterised in that：Described 5th
In step, the construction progress step of crossbeam is：
Step 1: paving beam bottom muscle --- the bottom muscle of beam placement template bottom interval distribution is laid with, and installs beam pad；
Step 2: lifting crossbeam --- I-girder is lifted into the middle part of beam placement template in place, beam is prescinded after being welded and fixed
Pad；
Step 3: paving beam gluten --- the gluten being spaced apart is laid with above I-girder in place；
Step 4: wear beam waist muscle --- the side muscle that beam placement template both sides and I-girder on both sides of the middle are spaced apart is laid with,
And by both ends elbow, hook connects around the waist muscle that is spaced apart of corresponding side muscle with I-girder weldering respectively, forms rib cage shape structure；
Step 5: binding stirrup --- binding is spaced apart the stirrup around beam placement template section；
Step 6: envelope beam side --- closing all Side shutterings of beam placement, Side shuttering lower part with through sandwich wood
The split bolt of side is reinforced；
Step 7: beam placement --- casting concrete, pours in beam placement template to half height.
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| CN201710326359.1A CN108019040B (en) | 2017-05-10 | 2017-05-10 | A kind of high-rise building transfer floor Bailey bracket platform construction method |
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| CN201710326359.1A CN108019040B (en) | 2017-05-10 | 2017-05-10 | A kind of high-rise building transfer floor Bailey bracket platform construction method |
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| CN109944444A (en) * | 2019-03-27 | 2019-06-28 | 中建三局集团有限公司 | A kind of form bracing system and reinforcing regulating device of high-precision concrete wall |
| CN114135096A (en) * | 2021-12-31 | 2022-03-04 | 浙江城建建设集团有限公司 | Ultrahigh structure formwork construction platform and implementation method thereof |
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