Multi-row Main Reinforcement Staggered Layer Sealing and Anchor Structure of Steel Concrete Composite Giant Column and Its Construction Technology
A technology of concrete and giant columns, which is applied in the direction of building structure and construction, and can solve the problems of insufficient anchor length, large specifications, and the inability to realize the combined giant column anchorage construction, etc.
Active Publication Date: 2017-11-17
DALIAN BRANCH OF CHINA CONSTR EIGHTH ENG DIV CORP +1
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Problems solved by technology
Due to the large number of main reinforcement rows and large specifications (up to 40mm in diameter), there are intersections between multiple rows of main reinforcement at the same elevation, and because the composite giant column is enclosed with steel bone, the sealing and anchoring steel bars cannot penetrate the steel bone, resulting in insufficient anchoring length
The above two factors cannot realize the anchoring construction at the variable cross-section of the multi-row main reinforcement of the composite giant column
Method used
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[0015] Such as figure 1 The multi-row main reinforcement staggered anchor structure of the steel-concrete composite giant column shown involves multiple rows of main reinforcement and steel reinforcement 10, the main reinforcement adopts four rows of anchor reinforcement and two rows of non-anchor reinforcement 9, and the four rows of anchor reinforcement seal the anchor end. The bends extend to the surface of the steel frame, and are arranged in random order according to different elevations and with an interlayer spacing of 100mm. Among the main anchor bars, the row of anchor bars closest to the steel frame (the fourth row of anchor bars 4 in the figure) is relatively short. The bottom connecting plate 6 is placed at the bottom of the main reinforcement, and double-sided lap welding is used to connect, and the remaining three rows (the first row of anchor reinforcement 1, the second row of anchor reinforcement 2, and the third row of anchor reinforcement 3) are connected by s...
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The invention belongs to the technical field of building construction. The multi-row main reinforcement staggered anchor structure of steel-concrete composite giant column involves multiple rows of main reinforcement and steel reinforcement. And according to the set interlayer spacing, they are arranged in random order, and the main reinforcement of the anchorage and the steel frame are lap welded by the connecting plate to form an overall connection structure. According to the present invention, the turns of multi-row main reinforcement sealing and anchoring ends are arranged in random order according to different elevations and a certain interlayer spacing, and are connected to the steel frame through pre-welded connecting plates to form a whole, so as to solve the sealing and anchoring technology of multi-row main reinforcement of giant columns at variable cross-sections problem.
Description
A technical field [0001] The invention relates to the field of construction, in particular to the technical field of simultaneous sealing and anchoring construction of multiple rows of main bars at the variable-section part of a steel-concrete composite giant column with super large cross-section and inner steel skeleton. Two background technology [0002] Steel-concrete composite giant columns of super high-rise buildings have large specifications and a large number of steel bars, and the steel bars are extremely dense. Due to the large number of main reinforcement rows and large specifications (up to 40mm in diameter), multiple rows of main reinforcements overlap at the same elevation, and because the composite giant columns are enclosed with steel frames, the sealing and anchoring steel bars cannot penetrate through the steel frames, resulting in insufficient anchoring length. Both of the above two factors cannot realize the anchoring construction at the variable cross-se...
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IPC IPC(8): E04B1/41
Inventor 杨勇叶现楼李贺吕敬唐英琦
Owner DALIAN BRANCH OF CHINA CONSTR EIGHTH ENG DIV CORP