Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for improving bearing capacity of multi-target-oriented existing hollow slab girder bridge
The invention discloses a method for improving bearing capacity of a multi-target-oriented existing hollow slab girder bridge, and relates to a bridge bearing capacity improving method. An original bridge deck pavement is dismantled; a hollow slab beam bottom is longitudinally and continuously pasted with a seam-spanning type composite plate; a gradual change type rigidity calculation model for connection between the bridge deck pavement and a main beam is established, the arrangement range of rigid connecting pieces and flexible connecting pieces is determined, and corresponding arrangement is carried out; a double-layer stressed reinforcing mesh is laid and fixed above the hollow slab; and a concrete pavement layer is poured, and non-uniform rigid-flexible mixed connection is achieved. The bridge deck pavement is calculated according to a gradual change type rigidity calculation model, the bridge deck pavement and the hollow slab beam are effectively combined and connected through anon-uniform rigid-flexible mixed connection method, and the joint-spanning type combined plate is longitudinally and continuously pasted to the hollow slab beam bottom. Longitudinal bending resistance, longitudinal shear resistance, transverse bending resistance and transverse shear resistance bearing capacity of an existing hollow slab girder bridge are effectively improved.
一种面向多目标的既有空心板梁桥承载能力提升方法，涉及一种桥梁承载能力提升方法。拆除原有桥面铺装；空心板梁底纵向连续粘贴跨缝式组合板；建立桥面铺装与主梁之间连接的渐变式刚度计算模型，确定刚性连接件与柔性连接件的布置范围，并进行相应的布设；空心板上方铺设并固定双层受力钢筋网；浇筑混凝土铺装层，实现非均匀刚柔混合连接。桥面铺装按照渐变式刚度计算模型进行计算，采用非均匀的刚柔混合连接方法将桥面铺装与空心板梁有效结合连接起来，并在空心板梁底部纵向连续粘贴跨缝式组合板，有效提高既有空心板梁桥的纵向抗弯、纵向抗剪、横向抗弯以及横向抗剪承载能力。
Method for improving bearing capacity of multi-target-oriented existing hollow slab girder bridge
The invention discloses a method for improving bearing capacity of a multi-target-oriented existing hollow slab girder bridge, and relates to a bridge bearing capacity improving method. An original bridge deck pavement is dismantled; a hollow slab beam bottom is longitudinally and continuously pasted with a seam-spanning type composite plate; a gradual change type rigidity calculation model for connection between the bridge deck pavement and a main beam is established, the arrangement range of rigid connecting pieces and flexible connecting pieces is determined, and corresponding arrangement is carried out; a double-layer stressed reinforcing mesh is laid and fixed above the hollow slab; and a concrete pavement layer is poured, and non-uniform rigid-flexible mixed connection is achieved. The bridge deck pavement is calculated according to a gradual change type rigidity calculation model, the bridge deck pavement and the hollow slab beam are effectively combined and connected through anon-uniform rigid-flexible mixed connection method, and the joint-spanning type combined plate is longitudinally and continuously pasted to the hollow slab beam bottom. Longitudinal bending resistance, longitudinal shear resistance, transverse bending resistance and transverse shear resistance bearing capacity of an existing hollow slab girder bridge are effectively improved.
一种面向多目标的既有空心板梁桥承载能力提升方法，涉及一种桥梁承载能力提升方法。拆除原有桥面铺装；空心板梁底纵向连续粘贴跨缝式组合板；建立桥面铺装与主梁之间连接的渐变式刚度计算模型，确定刚性连接件与柔性连接件的布置范围，并进行相应的布设；空心板上方铺设并固定双层受力钢筋网；浇筑混凝土铺装层，实现非均匀刚柔混合连接。桥面铺装按照渐变式刚度计算模型进行计算，采用非均匀的刚柔混合连接方法将桥面铺装与空心板梁有效结合连接起来，并在空心板梁底部纵向连续粘贴跨缝式组合板，有效提高既有空心板梁桥的纵向抗弯、纵向抗剪、横向抗弯以及横向抗剪承载能力。
Method for improving bearing capacity of multi-target-oriented existing hollow slab girder bridge
一种面向多目标的既有空心板梁桥承载能力提升方法
GAO QINGFEI (Autor:in) / ZHANG KUN (Autor:in) / LIU YANG (Autor:in) / LI ZHONGLONG (Autor:in) / LI JUN (Autor:in)
12.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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