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Prestressed H-type steel supporting structure and construction method thereof
The invention discloses a prestressed H-type steel supporting structure and a construction method thereof. The prestressed H-type steel supporting structure comprises a plurality of prestressed supporting units. Each prestressed supporting unit comprises a supporting pile, a plurality of steel supports and prestressed bars, wherein the supporting pile is vertically arranged on one side of a foundation pit to be excavated, the steel supports are arranged on the supporting pile from top to bottom, and one end of each prestressed bar is anchored to the lower portion of the supporting pile. The prestressed supporting units are sequentially driven into the periphery of the foundation pit to be excavated, the steel supports all face the foundation pit to be excavated, a top beam is arranged at the top end of each prestressed supporting unit, and each prestressed supporting unit and the corresponding top beam are integrated. Tensile force is applied to the prestressed bars, and the upper ends of the prestressed bars are anchored to the top beams. The horizontal component of the tensile force borne by the prestressed bars is transferred to the supporting structure, and therefore partial soil pressure of soil is counteracted, the supporting strength is improved, and deformation of the supporting piles is reduced. In addition, the supporting structure can be recycled, and therefore the cost is reduced.
Prestressed H-type steel supporting structure and construction method thereof
The invention discloses a prestressed H-type steel supporting structure and a construction method thereof. The prestressed H-type steel supporting structure comprises a plurality of prestressed supporting units. Each prestressed supporting unit comprises a supporting pile, a plurality of steel supports and prestressed bars, wherein the supporting pile is vertically arranged on one side of a foundation pit to be excavated, the steel supports are arranged on the supporting pile from top to bottom, and one end of each prestressed bar is anchored to the lower portion of the supporting pile. The prestressed supporting units are sequentially driven into the periphery of the foundation pit to be excavated, the steel supports all face the foundation pit to be excavated, a top beam is arranged at the top end of each prestressed supporting unit, and each prestressed supporting unit and the corresponding top beam are integrated. Tensile force is applied to the prestressed bars, and the upper ends of the prestressed bars are anchored to the top beams. The horizontal component of the tensile force borne by the prestressed bars is transferred to the supporting structure, and therefore partial soil pressure of soil is counteracted, the supporting strength is improved, and deformation of the supporting piles is reduced. In addition, the supporting structure can be recycled, and therefore the cost is reduced.
Prestressed H-type steel supporting structure and construction method thereof
WANG JIANLAN (author)
2016-01-20
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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