CN101435270B - Sectional butt joint operation method of high-rise columns - Google Patents

Abstract

The invention relates to high-rise operation, in particular to a high-rise column section operation method. A high-rise pillar segment butt joint method; the method comprises a plurality of pairs of double-column pillars with lifting lugs, and comprises the following steps: firstly, arranging a steel bar vertical ladder on the surfaces of a plurality of columns along the length direction from bottom to top; step two, arranging a safety platform at the top end of a double pipe of the column provided with the vertical ladder; thirdly, vertically arranging the columns provided with the safety platforms by using lifting equipment through lifting lugs, and climbing the safety platforms by operating personnel through a vertical ladder; hoisting other pillars without a safety platform, and butt-welding the two sections of pillars on the safety platform by an operator; and fifthly, detaching the safety platform, and repeating the second step to the fourth step to finish the butt joint work of all the pillars.

Description

Sectional butt joint operation method of high-rise columns

technical field

The invention relates to high-rise work, in particular to a segmental work method for high-rise pillars.

Background technique

In the hoisting of super-high, super-long, super-wide, and super-heavy components in heavy (high-rise) factory building structures, the construction safety technical difficulties faced are: ① super-long components cannot be transported; ② municipal roads restrict transportation; ③ site conditions cannot meet the needs of large cranes Restricted hoisting capacity caused by site requirements; ④ Too many auxiliary temporary facilities should not be installed on the surface of components; ⑤ High-altitude operations are frequently used and difficult to dismantle. It is difficult to meet the safe and reliable technical requirements when installing this type of structure in the past. For example, for the installation of the segmental butt joint of four pipe columns (54.5 meters in length, 4 meters in width, and 113 tons in weight) in a cold rolling plant of a certain unit, conventional safety technical measures are adopted, considering that large cranes cannot be used due to site conditions , Municipal road transportation constraints, etc., can only be installed in sections, and each column needs to be butt-welded to the design height. How to ensure the personal safety of operators in high-altitude welding operations has not been a good solution for a long time. At the same time, welding equipment is placed at high altitude. Also a problem.

Contents of the invention

The present invention aims to solve the above problems, and provides a segmented butt joint operation method for high-rise columns. The working platform of the present invention is indeed a highly feasible solution for safety technical measures, which is not only simple and scientific, but also practical and convenient. High-rise components must be docked in sections and safety measures are difficult to formulate to realize a safe corridor for construction personnel to connect from the ground to the high-altitude docking operation point, which is flexible, operable, safe and fast, so as to save resources.

The present invention is realized like this: a kind of high-rise column segmental docking method; It comprises several pairs of double-pipe column columns with lifting lugs, and it comprises the following steps:

Step 1, on the surfaces of several pillars, a steel bar straight climbing ladder is arranged along the length direction from bottom to top;

Step 2, a safety platform is set at the top of the double pipe of the column of the straight climbing ladder;

Step 3: Use the lifting equipment to set the safety platform pillars upright through the lifting lugs, and the operator boards the safety platform through the straight ladder;

Step 4: Lift the pillar without a safety platform, and the operator will butt weld the two sections of pillars on the safety platform;

Step 5, remove the safety platform, repeat steps 2 to 4, and complete the docking work of all high-rise columns.

In the segmented butt joint method of high-rise columns, in the first step, the straight climbing ladder is provided with a corresponding semicircular cover-shaped protective cage, and the two ends of the protective cage are fixedly connected to the two sides of the straight climbing ladder, and are connected with the straight climbing ladder. The ladders together form a safe passage from the ground to the safety platform.

In the segmented butt joint method of high-rise pillars, the safety platform includes a flat plate, railings are provided around the flat plate, through holes are provided in the flat plate to accommodate high-rise pillars, and clamping plates are provided at the lower part of the flat plate near the pillars. In the second step A number of buckles corresponding to the number of clamps are provided on the peripheral surface of the column, and the clamps are inserted into the buckles so that the platform and the column are fixedly connected.

In the segmented butt joint method of high-altitude pillars, a triangular support frame is provided at the bottom of the safety platform, and the vertical rods of the triangular support frame are fixed on the columns.

In the segmented docking method of high-altitude pillars, in the second step, a safety net is connected to the lower part of the safety platform.

In the segmented butt joint method of high-altitude columns, in the third step, a life rope is pulled at the hole of the column and directly tied to the double-pipe column; the operator needs to hang it well during unhooking, butt connection, and welding construction. Safety belt, the safety belt buckle point is arranged on the life rope at the manhole.

The method adopted in the present invention is to use a special temporary platform, and a safety corridor can be formed by climbing the ladder directly from the protective cage set on the pillar, starting from the ground to the setting point of the temporary platform, and even to the top of the pillar and the crane beam. . After the use is completed, the temporary platform can be easily dismantled for secondary use, and the convenience and quickness of dismantling also means that potential safety hazards are reduced. It is very convenient to install and disassemble, and it forms a fast and convenient safety corridor with the supporting measures of the full-length steel bar straight climbing ladder and the protective cage of the column. In the actual safety control of engineering construction, the installation is convenient, the operation is flexible, and the construction cost is reduced.

Description of drawings

Below, the present invention will be further described in conjunction with accompanying drawing:

Fig. 1 is a schematic diagram of the present invention;

Fig. 2 is a sectional view of A-A in Fig. 1 .

Detailed ways

A segmented butt joint method for high-rise columns; it includes several pairs of double-pipe column columns 1 with lifting lugs, and it includes the following steps:

Step 1, please refer to Fig. 1, in some pillars 1 from bottom to top along the length direction, the straight climbing ladder 3 of steel bar is set; The two ends of the two ends are fixedly connected to the two sides of the straight climbing ladder 3, and together with the straight climbing ladder 3, a safe passage is formed from the ground to the top of the column 1; The unhooking of the upper column will be completed through this straight ladder.

Step 2, a safety platform 2 is set at the top of the double pipes of the column 1 provided with the straight climbing ladder 3, and the functions of the platform must be diversified, which is due to the narrow space range at the column segmentation point, various super-height construction tasks, and the column The appearance should not be determined by multiple restrictions such as welding too many multifunctional structures. Please refer to Fig. 1 and in conjunction with Fig. 2, described safety platform 2 comprises a plate 20, is provided with railing 21 around plate 20, is provided with through hole in plate 20 to accommodate high-rise column 1, and plate 20 bottom is provided with three positions near column 1. Clamping plate 22, correspondingly, three buckles 11 are arranged on the lower peripheral surface of the column segmentation point, and the clamping plate 22 is inserted into the buckles 11 so as to be fixedly connected with the column 1; in order to ensure the stability of the safety platform 2, the safety The bottom of the platform 2 is also provided with a triangular support frame 23, and the vertical rod of the triangular support frame 23 is fixed on the column 1; the bottom of the safety platform 2 is also connected with a safety net 5 to prevent operators and construction equipment from falling.

Step 3, using lifting equipment to set the pillar 1 on which the safety platform 2 is set upright through the lifting lugs, and the operator boards the safety platform 2 through the straight ladder 3;

Step 4: Lift the column 1 without a safety platform, and the operator will butt-weld the two sections of column 1 on the safety platform 2; in order to ensure safety, a life rope is pulled at the hole of the column 1 and directly tied to the double-pipe column column 1 ;Operators need to hang up the safety belt when unhooking, butt jointing and welding construction, and the safety belt buckle point is on the life rope set at the manhole;

Step 5, remove the safety platform 2, repeat steps 2 to 4, and complete the docking work of all columns 1.

Claims (6)

1. high layer post subsection docking calculation; It comprises some to having the dual string pillar of hanger, it is characterized in that it comprises the following steps:

Step 1 is at some pillars surface, the elongated along its length from bottom to up reinforcing bar catladder that is provided with;

Step 2 is provided with security platform on the two-tube top of the pillar that is provided with catladder;

Step 3 is utilized lifting appliance, uprightly is provided with being provided with the security platform pillar through hanger, and the operating personnel climbs up security platform through catladder;

Step 4 is lifted by crane the pillar that other does not establish security platform, and the operating personnel welds two sections pillar butt joints on the security platform platform;

Step 5 is removed security platform, and repeating step two to four is accomplished the mating operation of all pillars.

2. high layer post subsection docking calculation according to claim 1; It is characterized in that; In the said step 1; Said catladder is provided with the cage that protects of corresponding semicircle cover shape, and said right ends of protecting cage is fixedly connected the dual-side of catladder, and and catladder common form one from ground to escape way said security platform.

3. high layer post subsection docking calculation according to claim 1 is characterized in that, in the said step 2; Said security platform comprises a flat board; Be provided with railing around dull and stereotyped, be provided with through hole in the flat board to hold high-rise pillar, dull and stereotyped bottom is provided with clamp near the pillar position; The buckle of some and said clamp respective numbers is set on the pillar side face, said platform is fixedly connected with pillar thereby said clamp inserts buckle.

4. high layer post subsection docking calculation according to claim 3 is characterized in that, said security platform bottom also is provided with triangular support bracket, and the plumbing bar of said triangular support bracket is fixed on the said pillar.

5. high layer post subsection docking calculation according to claim 3 is characterized in that, in the said step 2, said security platform bottom also is connected with safety net.

6. high layer post subsection docking calculation according to claim 1 is characterized in that, in the said step 3; Draw in the pillar aperture and to establish the life rope, directly be bundled on the dual string pillar; The operating personnel all need hang up properly safety belt when decoupling device, butt joint connection, welding procedure, buckle of safety belt point is being arranged on the life rope at pillar man-hole opening place.

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