Device for eliminating influence of latticed column on axial force of supporting beam and mounting method

Abstract

The invention discloses a device for eliminating the influence of a latticed column on the axial force of a supporting beam. The device comprises a piston assembly, two steel base plates and a plurality of foot steel plates; the piston assembly comprises a hydraulic cylinder outer barrel and a hydraulic piston; the lower end of the hydraulic piston is telescopically arranged in the hydraulic cylinder outer barrel; an oil filling port and an overflow valve are arranged on the hydraulic cylinder outer barrel; the two steel base plates are fixed to the two sides of the supporting beam correspondingly; holding arms are fixed to the outer sides of the steel base plates on the two sides correspondingly; the lower ends of the two holding arms are connected to a pressure bearing plate; the pressure bearing plate is fixedly connected with the upper end of the hydraulic piston; the foot steel plates are connected to the end of the latticed column; the upper ends of all the foot steel plates are fixedly connected to the bottom of the hydraulic cylinder outer barrel; and the hydraulic cylinder outer barrel is filled with hydraulic oil. The invention further discloses a mounting method of the device. By means of the device and the mounting method, the influence of the latticed column on the axial force of the supporting beam can be effectively eliminated, foundation pit monitoring data are normal and accurate, and more accurate data are provided for foundation pit monitoring.

Description

technical field [0001] The invention relates to the technical field of deep foundation pit engineering monitoring in soft soil areas, in particular to a device and an installation method for eliminating the influence of lattice columns on the axial force of supporting beams. Background technique [0002] With the increasing investment in national infrastructure construction, there are more and more high-rise buildings, large bridges, and subway stations, and there are more and more excavation projects for foundation pits. In the eastern coastal areas, most of the foundation pits adopt the form of internal support, and the soft soil is widely distributed in the coastal areas, which brings various problems to the excavation and construction of foundation pits. [0003] The axial force monitoring of the supporting structure is one of the main contents of the on-site monitoring of the foundation pit engineering. Through the monitoring of the axial force, the force status of the ...

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Problems solved by technology

[0004] Combined with a large number of actual engineering findings, when foundation pits are excavated in soft soil areas, the bottom of the pit is more likely to uplift, and the amount of uplift is relatively large. The movement and support of the upper beam cause abnormal axial force of the beam support, which affects the monitoring of the axial force

[0005] At present, there is still no convenient and economical method and equipment used to solve this problem. Therefore, it is becoming more and more important to develop a device that is convenient, simple, highly economical, recyclable and reusable to eliminate the influence of lattice columns on the axial force of supporting beams. Urgent problems

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