Overall synchronous descending construction method for building

Abstract

The invention discloses an overall synchronous descending construction method for a building, and belongs to the technical field of frame structure building foundation. The method comprises the following steps: integrally strengthening an upper part building structure; making a manual excavated filling pile at the lower part of each plinth of a foundation of the original building structure as a counter-force base; making an original foundation expanded cross section of the building; conducting supporting by outer side supports, formed by jacks and multi-layer steel cushion blocks I, on the outer side of the bottom of the expanded cross section foundation and inner side supports, formed by multi-layer steel cushion blocks II, on the inner side of the bottom of the expanded cross section foundation; the unloading of the jacks and the disassembly of the multi-layer steel cushion blocks I and the multi-layer steel cushion blocks II are conducted alternatively in sequence, so as to realize overall synchronous descending of the building; the jacks are unloaded, in-position connection is conducted, concrete is poured, and the foundation is backfilled. According to the method, the height of the building can be effectively reduced, influence to peripheral buildings is reduced, the space utilization rate of the building is improved, the cost is low, the waste is reduced, and the safety and the reliability are high.

Description

technical field [0001] The invention relates to the technical field of frame structure building foundations. Background technique [0002] With the development of my country's economy, the pace of urban construction is accelerating, and the utilization rate of urban space is getting higher and higher. In the process, some buildings will inevitably appear crowded, super high and beyond the limit, which will affect the normal use of other buildings and itself. . In order to avoid impacts on the surrounding buildings and its own use requirements, it is necessary to reduce the overall height of the existing buildings to meet the requirements of the overall planning and building use functions. If the method of removing the top of the existing building is adopted, a large amount of construction waste will inevitably be generated, and the space used by the building will be wasted, and the roof of the building needs to be re-installed with an insulation layer and a waterproof layer....

AI Technical Summary

Problems solved by technology

If the method of removing the top of the existing building is adopted, a large amount of construction waste will inevitably be generated, and the space used by the building will be wasted, and the roof of the building needs to be re-installed with an insulation layer and a waterproof layer. The resulting waste will not be underestimated. The construction cost is greatly increased, and the construction period is affected at the same time, which does not conform to the national policy of energy saving, emission reduction, low carbon and environmental protection

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