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A platform for research: civil engineering, architecture and urbanism
Method for unloading sandboxes of section pre-fabricated steel truss continuous beam bridge
The invention provides a method for unloading sandboxes of a section pre-fabricated steel truss continuous beam bridge. The method includes the steps that firstly, the spans of the section pre-fabricated steel truss continuous beam bridge are determined according to the position of a support with each truss as the unit; secondly, the middle span is selected as a current span, and the sandbox closest to the middle of the span is unloaded; thirdly, whether a non-traversed span adjacent to the current span exists or not is judged, if yes, the adjacent span serves as the current span, and the sandbox closest to the middle of the span is unloaded, and the step is repeated until all the spans are traversed; fourthly, whether the residual sandboxes are closest to the support or not is judged; if not, the second step is carried out; if yes, all the residual sandboxes are unloaded. The sandboxes are unloaded according to the sequence from the middle of the span to the position adjacent to the support. In the process of detaching a temporary supporting frame, stress on the temporary supporting frame is perfectly converted to the self-stress of a steel structure, and therefore construction safety of the temporary supporting frame or the steel structure is further guaranteed.
Method for unloading sandboxes of section pre-fabricated steel truss continuous beam bridge
The invention provides a method for unloading sandboxes of a section pre-fabricated steel truss continuous beam bridge. The method includes the steps that firstly, the spans of the section pre-fabricated steel truss continuous beam bridge are determined according to the position of a support with each truss as the unit; secondly, the middle span is selected as a current span, and the sandbox closest to the middle of the span is unloaded; thirdly, whether a non-traversed span adjacent to the current span exists or not is judged, if yes, the adjacent span serves as the current span, and the sandbox closest to the middle of the span is unloaded, and the step is repeated until all the spans are traversed; fourthly, whether the residual sandboxes are closest to the support or not is judged; if not, the second step is carried out; if yes, all the residual sandboxes are unloaded. The sandboxes are unloaded according to the sequence from the middle of the span to the position adjacent to the support. In the process of detaching a temporary supporting frame, stress on the temporary supporting frame is perfectly converted to the self-stress of a steel structure, and therefore construction safety of the temporary supporting frame or the steel structure is further guaranteed.
Method for unloading sandboxes of section pre-fabricated steel truss continuous beam bridge
WANG SONG (author) / MING ZHANXUE (author) / HUANG MINGLI (author) / LU WENLIANG (author) / MENG ZHAOHUI (author) / LIU MIAO (author) / MA FULI (author) / WANG LAISHUN (author) / ZHOU XIAOFENG (author) / HU QIAOWEN (author)
2015-09-23
Patent
Electronic Resource
English
IPC:
E01D
BRIDGES
,
Brücken
Construction method of fabricated bridge swivel without supporting legs and sandboxes
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