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Construction method of small-curve-radius continuous steel box composite beam
The invention relates to the field of composite beam construction, and discloses a small-curve-radius continuous steel box composite beam construction method which comprises the following steps: step 1, constructing an abutment and a temporary buttress, and mounting a support on the abutment; 2, steel beam hoisting is completed, the central axis of a steel beam is a curve, and pushing equipment is debugged and installed on the abutment; thirdly, the steel beam is jacked by the jacking equipment, so that the hogging moment area of the steel beam is arched upwards; fourthly, a steel plate is arranged on the steel beam, the steel plate serves as a formwork, and concrete in the sagging moment area is poured; fifthly, after the concrete in the positive bending moment area reaches the design strength, the steel plate serves as a formwork, and concrete in the negative bending moment area is poured; therefore, the stress of the concrete structure in the hogging moment area can be conveniently and quickly optimized.
本发明涉及组合梁施工领域，公开了一种小曲线半径连续钢箱组合梁施工方法，包括以下步骤：步骤一、施工墩台和临时支墩，在墩台上安装支座；步骤二、完成钢梁吊装，钢梁中轴线为曲线，在墩台上调试并安装顶推设备；步骤三、顶推设备顶升钢梁，使钢梁的负弯矩区向上拱起；步骤四、钢梁上设有钢板，以钢板为模板，浇筑正弯矩区的混凝土；步骤五、正弯矩区的混凝土达到设计强度后，以钢板为模板，浇筑负弯矩区的混凝土；以方便快捷地优化负弯矩区的混凝土结构受力。
Construction method of small-curve-radius continuous steel box composite beam
The invention relates to the field of composite beam construction, and discloses a small-curve-radius continuous steel box composite beam construction method which comprises the following steps: step 1, constructing an abutment and a temporary buttress, and mounting a support on the abutment; 2, steel beam hoisting is completed, the central axis of a steel beam is a curve, and pushing equipment is debugged and installed on the abutment; thirdly, the steel beam is jacked by the jacking equipment, so that the hogging moment area of the steel beam is arched upwards; fourthly, a steel plate is arranged on the steel beam, the steel plate serves as a formwork, and concrete in the sagging moment area is poured; fifthly, after the concrete in the positive bending moment area reaches the design strength, the steel plate serves as a formwork, and concrete in the negative bending moment area is poured; therefore, the stress of the concrete structure in the hogging moment area can be conveniently and quickly optimized.
本发明涉及组合梁施工领域，公开了一种小曲线半径连续钢箱组合梁施工方法，包括以下步骤：步骤一、施工墩台和临时支墩，在墩台上安装支座；步骤二、完成钢梁吊装，钢梁中轴线为曲线，在墩台上调试并安装顶推设备；步骤三、顶推设备顶升钢梁，使钢梁的负弯矩区向上拱起；步骤四、钢梁上设有钢板，以钢板为模板，浇筑正弯矩区的混凝土；步骤五、正弯矩区的混凝土达到设计强度后，以钢板为模板，浇筑负弯矩区的混凝土；以方便快捷地优化负弯矩区的混凝土结构受力。
Construction method of small-curve-radius continuous steel box composite beam
一种小曲线半径连续钢箱组合梁施工方法
CAO MINGRUI (author) / CHAI SHAOQIANG (author) / ZHAO YANLU (author) / REN JIMIN (author) / LEI SHANGCHENG (author)
2023-08-25
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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