Steel tube triangle truss supporting system and construction method

Abstract

The invention provides a steel tube triangle truss supporting system and a construction method. An annular horizontal slotted hole is formed in the side wall of a lock chamber for assembling a triangle truss horizontal rod. According to a triangle truss vertical rod, the upper end of the triangle truss vertical rod is fixedly connected to the triangle truss horizontal rod through a buckle, and thelower end of the triangle truss vertical rod is fixedly connected to a triangle truss inclined rod; the triangle truss inclined rod is configured to be connected to the triangle truss vertical rod and the triangle truss horizontal rod through buckles, and meanwhile the bottom end of the triangle truss inclined rod in butt joint with the side wall of the lock chamber. Two adjacent triangle truss structures are connected through a steel tube and / or a buckle to form a triangle truss supporting platform. Embedded bars are used for fixing the triangle truss horizontal rod. A weighing scaffold is built on a triangle truss supporting platform and supports a cantilever of the lock chamber. According to the system and method, only the horizontal rod is embedded, disposable consumption of embeddedparts is saved, the scaffold building difficulty is lowered, a large amount of disassembling and building work of the lock chamber upper structures is avoided, and the time limit for a project and adopted materials are controlled.

Description

technical field [0001] The invention relates to the construction field of lock chambers of hydropower stations, in particular to a steel pipe triangular truss support system and a construction method. Background technique [0002] Concrete at the cantilever end is installed in all engineering lock chamber structures, but the length of the cantilever is different. In the concrete construction process of the cantilever structure, the internal pull method is mainly used after the full house scaffolding and pre-embedded steel brackets. The relative cost and construction period longer. [0003] In the construction of the cantilever structure of the lock chamber in the existing project, the design and process of using the steel pipe triangular truss as a supporting platform system have not been found. [0004] On the premise of ensuring the size of the concrete structure of the lock chamber and ensuring the safety of the support system during pouring, how to reduce the amount of ...

AI Technical Summary

Problems solved by technology

[0004] On the premise of ensuring the size of the concrete structure of the lock chamber and ensuring the safety of the support system during pouring, how to reduce the amount of steel pipe scaffolding erection, or avoid the increase in cost caused by the pre-embedded steel platform, and the difficulty in installing the formwork at the pre-embedded point of the steel, etc. problems, and how to speed up the construction progress while reducing costs, has become an important problem to be solved by those skilled in the art

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