Connecting structure of the deep foundation pit reinforcing latticed column and construction method

Abstract

The invention discloses a connecting structure of the deep foundation pit reinforcing latticed column. The connecting structure comprises a latticed column body, side baffles are fixed to the top of the latticed column body at equal intervals, a mounting groove is defined by the four side baffles, a driving box is connected to the inner wall of the mounting groove in an inserted and clamped mode, a mounting piece is fixed to the top of the driving box, a first baffle is fixed to the top of the mounting piece through bolts, first fixing blocks are symmetrically fixed to the four corners of the bottom of the inner wall of the driving box, gaps among the four first fixing blocks form a cross-shaped groove, first sliding holes are symmetrically formed in the side edges of the driving box, and first clamping blocks are slidably connected to the inner walls of the first sliding holes. When a steel bar beam is poured, the phenomenon that concrete extrudes fixing arms and consequently the fixing arms retract can be prevented, the connecting strength of inserting columns and the steel bar beam is improved, the problem that the supporting force is insufficient due to foundation sinking can be prevented, the supporting stability is improved, the device can be detached and recycled, and material waste is reduced.

Description

technical field [0001] The invention relates to the technical field of lattice columns, in particular to a connection structure and a construction method for reinforcing lattice columns in deep foundation pits. Background technique [0002] Lattice columns are used as compression-bending components, and are mostly used in factory building frame columns and independent columns. The cross-section is generally designed as a biaxially symmetrical or uniaxially symmetrical section of steel or steel plate. The components of the lattice system are composed of limbs and decoration materials. The limbs mainly bear axial force, and the decoration materials mainly resist lateral force (relative to the axial direction of the limbs); [0003] In the reinforcement of deep foundation pits, operators usually use lattice columns for reinforcement. By pouring the lattice columns and foundation piles together, the lattice columns form support columns, and connect steel beams at the top of each...

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Problems solved by technology

[0004] However, the existing lattice columns and steel beams are connected by welding or tying, and the construction is relatively cumbersome. Once the inner support is poured, the support for the inner support cannot be adjusted. If the foundation sinks, it will cause the lattice The support strength of the inner support of the column pair is reduced, and the stability is poor

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