Method for manually breaking inner support beams

Abstract

The invention discloses a method for manually removing internal support beams, which belongs to the technical field of building construction and comprises the following steps in sequence: erecting a scaffolding operating platform full of halls; backfilling the space between the outer wall of the basement and the inner side of the foundation pit with layered concrete; removing the supporting main beam First, the vibration isolation joints are set on both sides of the main beam and the lattice column; before the concrete is broken, the concrete beam is drilled with a drill pipe, and the concrete beam is expanded with a concrete expander; the inner support beam is manually removed, The order of dismantling is to dismantle from both ends of the beam to the middle, from the beam far away from the foundation pit wall to the beam close to the foundation pit wall, and from the bottom of the foundation pit to the top. The invention adopts a manual removal method with a lower cost than that of a gold wire saw, and the removed concrete slag is convenient for cleaning and transportation, and is not limited by the site, and at the same time, the safety risk of the structure due to self-operation and vibration is relatively small.

Description

technical field [0001] The invention belongs to the technical field of building construction. Background technique [0002] The demolition of the concrete inner support beam mainly includes the methods of wire saw cutting, static blasting, and excavator. [0003] The construction cost of the gold steel wire saw is relatively high, and the self-operation and safety risks to the structure are relatively large during cutting. The waist beam part is close to the wall pile of the foundation pit, and the wire saw cannot be operated. The other cut concrete structures are hoisted. Transportation and transportation are more difficult. [0004] Static blasting has high requirements for professional construction teams and high professionalism in operation, which has an impact on the surrounding environment and structural safety. [0005] Excavators have severe noise pollution and large vibrations, which affect structural safety. Contents of the invention [0006] The object of the...

AI Technical Summary

Problems solved by technology

[0003] The construction cost of the gold steel wire saw is relatively high, and the self-operation and safety risks to the structure are relatively large during cutting. The waist beam part is close to the wall pile of the foundation pit, and the wire saw cannot be operated. The other cut concrete structures are hoisted. Difficult to ship and transport

[0004] Static blasting has high requirements for professional construction teams and high professionalism in operation, which has an impact on the surrounding environment and structural safety

[0005] Excavators get rid of serious noise pollution and large vibrations, which affect structural safety

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