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A platform for research: civil engineering, architecture and urbanism
Design and construction method of large-span bailey steel trestle
The invention provides a design and construction method of a large-span bailey steel trestle. The method is characterized by comprising the following steps that a, the design method of the large-span bailey steel trestle on a spillway comprises the steps that (1) the span of a bailey steel trestle beam is determined according to the width of the spillway and the sizes of retaining walls on the two sides of the spillway; b, a construction method of the large-span bailey steel trestle on the spillway comprises the steps that (1) an excavator stands on an existing rural road, a site within the range of a pile foundation is roughly leveled, the pile foundation is excavated manually, miscellaneous fill backfill sections are arranged behind spillway retaining walls, and C30 retaining wall supporting is adopted while excavation is conducted; according to the design and construction method of the large-span beret steel trestle on the spillway, large-span one-span spanning is achieved, the safety of existing water conservancy facilities and the structural bearing stress safety of the steel trestle are guaranteed, a reinforced concrete bottom plate on the spillway is not damaged, the situation that the bottom plate is difficult to repair and the cost is increased is avoided, and the danger caused by construction operation on the bottom plate with large water flow and a steep slope is also avoided.
一种大跨径贝雷钢栈桥的设计建造方法，其特征在于包括以下步骤：a、溢洪道上大跨径贝雷钢栈桥的设计方法，包括（1）根据溢洪道宽度和溢洪道两侧挡墙尺寸确定贝雷钢栈桥梁跨径等步骤，b、溢洪道上大跨径贝雷钢栈桥的施工方法，包括（1）挖机站在既有乡道上，大致整平桩基范围内场地，人工开挖桩基，在溢洪道挡墙后杂填土回填段，边开挖边采用C30护壁支护等步骤。本发明的溢洪道上大跨径贝雷钢栈桥的设计及施工方法具有大跨径一跨跨越，保证既有水利设施的安全和钢栈桥的结构承载受力安全，不破坏溢洪道上的钢筋砼底板，避免对底板修复困难和增加成本，也避免在水流较大、斜坡较陡的底板上施工作业带来的危险性的优点。
Design and construction method of large-span bailey steel trestle
The invention provides a design and construction method of a large-span bailey steel trestle. The method is characterized by comprising the following steps that a, the design method of the large-span bailey steel trestle on a spillway comprises the steps that (1) the span of a bailey steel trestle beam is determined according to the width of the spillway and the sizes of retaining walls on the two sides of the spillway; b, a construction method of the large-span bailey steel trestle on the spillway comprises the steps that (1) an excavator stands on an existing rural road, a site within the range of a pile foundation is roughly leveled, the pile foundation is excavated manually, miscellaneous fill backfill sections are arranged behind spillway retaining walls, and C30 retaining wall supporting is adopted while excavation is conducted; according to the design and construction method of the large-span beret steel trestle on the spillway, large-span one-span spanning is achieved, the safety of existing water conservancy facilities and the structural bearing stress safety of the steel trestle are guaranteed, a reinforced concrete bottom plate on the spillway is not damaged, the situation that the bottom plate is difficult to repair and the cost is increased is avoided, and the danger caused by construction operation on the bottom plate with large water flow and a steep slope is also avoided.
一种大跨径贝雷钢栈桥的设计建造方法，其特征在于包括以下步骤：a、溢洪道上大跨径贝雷钢栈桥的设计方法，包括（1）根据溢洪道宽度和溢洪道两侧挡墙尺寸确定贝雷钢栈桥梁跨径等步骤，b、溢洪道上大跨径贝雷钢栈桥的施工方法，包括（1）挖机站在既有乡道上，大致整平桩基范围内场地，人工开挖桩基，在溢洪道挡墙后杂填土回填段，边开挖边采用C30护壁支护等步骤。本发明的溢洪道上大跨径贝雷钢栈桥的设计及施工方法具有大跨径一跨跨越，保证既有水利设施的安全和钢栈桥的结构承载受力安全，不破坏溢洪道上的钢筋砼底板，避免对底板修复困难和增加成本，也避免在水流较大、斜坡较陡的底板上施工作业带来的危险性的优点。
Design and construction method of large-span bailey steel trestle
一种大跨径贝雷钢栈桥的设计建造方法
LI HUA (author) / SU PEIPEI (author) / ZHANG WEN (author) / ZHU CHANGGEN (author)
2021-04-09
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Large-span steel trestle structure and construction method thereof
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