A method for simultaneous removal of multiple connecting parts of side walls of old and new subway stations

Abstract

The invention discloses a method for simultaneously removing a plurality of connecting parts of side walls of old and new subway stations. The beams and columns are first constructed as the supporting structure, and then after the concrete strength reaches the design value, the reinforced concrete structure within the scope of the hole is dismantled at one time under the support of the beam and column system, which can meet the simultaneous demolition of multiple connection parts. Among them, a support is set between the column and the beam, which is regarded as a hinge, to avoid bending of the column, especially for the condition of relatively large height and span, which can effectively avoid buckling of the column. This technical solution not only changes the beam-column connection structure and is suitable for situations with relatively large heights and spans, but also reduces the impact of the demolition construction on the existing structure, so that multiple connection parts can be carried out at the same time on the basis of fully ensuring construction safety. Eliminate, shorten the construction period, save construction costs.

Description

technical field [0001] The invention relates to the related technical field of subway station expansion, in particular to a method for simultaneously removing multiple connection parts of side walls of old and new subway stations. Background technique [0002] With the advancement of urbanization in my country, the construction of urban underground space is developing rapidly. Usually, there will be multiple subway line transfers. It is necessary to renovate and expand the existing subways, and break the side walls of the connecting parts of the old and new subways. The side wall removal construction will inevitably disturb the existing structure and affect the stability of the existing structure. The traditional manual demolition method is difficult to construct, with a long construction period and high cost; the subsequent improved mechanical demolition method also adopts the method of first demolition and then support, which has a greater impact on the existing structure ...

AI Technical Summary

Problems solved by technology

[0010] The construction method of successively removing the connecting parts requires a long construction period, which results in an increase in construction costs.

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