Method for manually breaking inner support beams

Abstract

The invention discloses a method for manually breaking inner support beams, and belongs to the technical field of house building construction. The method sequentially comprises the steps that an all-round scaffold operation platform is erected; concrete layered backfilling is adopted between the outer wall of a basement and the inner side of a foundation pit; before support main beams are disassembled, vibration isolation gaps are formed in the parts, at two sides of lattice columns, of the inner support beams; hole drilling is carried out on concrete beams by using a drill rod before the concrete is broken, and a concrete beam expander is adopted for expanding the concrete beams; the inner support beams are manually disassembled, and the disassembling sequence is that disassembling is carried out from two ends of the beams to the middles of the beams, disassembling is sequentially carried out from the beams which are far away from the wall of the foundation pit to the beams which areclose to the wall of the foundation pit and the beams are disassembled sequentially upwards from the bottom of the foundation pit. According to the method, the manual breaking method with the lower cost than the diamond rope sawing method is adopted, the removed concrete construction residues are convenient to clear and conveyed, the method is not limited by a site, and meanwhile, the safety risk,caused by the self-operation and vibration, of the structure 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...

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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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