Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of long-line multi-connection steel truss girder bridge
The invention relates to a construction method of a long-line multi-connection steel truss girder bridge. The construction method comprises the following steps that a steel truss girder assembling support is erected on the side edge of a first pier in the middle of the long-line steel truss girder bridge; assembling a first group of steel truss girder sections above the steel truss girder assembling bracket on the side edge of the first bridge pier by utilizing a crawler crane; every time one steel truss girder section is assembled, paving of a lower-layer railway bridge deck is carried out immediately; with the first bridge pier as a starting point, temporary supporting pads are sequentially arranged on the tops of the second bridge pier adjacent to the left side and the third bridge pier adjacent to the right side, and cantilever installation of the second set of steel truss girder sections is conducted towards the two sides with the erected first set of steel truss girder sections as the center; and the next group of steel truss girder sections of the long-line steel truss girder bridge continue to be spliced towards the cantilevers on the two sides until the erection of the whole long-line steel truss girder bridge is completed. During construction, the longitudinal and transverse paving sequence of the bridge deck slab is combined with the jacking and falling sequence of the steel truss girder, and cracks of the concrete bridge deck slab are effectively controlled.
本发明是一种长线多联钢桁梁桥的施工方法，包括以下步骤：在长线钢桁梁桥中间位置的第一桥墩侧边搭设钢桁梁拼装支架；利用履带吊进行第一桥墩侧边钢桁梁拼装支架上方的第一组钢桁梁节段拼装；每拼装完成一个钢桁梁节段，应立即进行下层铁路桥面板的铺装；以第一桥墩为起点，依次在左侧紧邻的第二桥墩和右侧紧邻的第三桥墩顶部设置临时支垫，以已架设完成的第一组钢桁梁节段为中心分别向两侧进行第二组钢桁梁节段的悬臂安装；长线钢桁梁桥的下一组钢桁梁节段继续向两侧悬臂拼装，直至完成整个长线钢桁梁桥的架设。本发明施工时，将桥面板纵向及横向的铺装顺序跟钢桁梁的起顶回落顺序结合起来，有效控制了混凝土桥面板的裂缝。
Construction method of long-line multi-connection steel truss girder bridge
The invention relates to a construction method of a long-line multi-connection steel truss girder bridge. The construction method comprises the following steps that a steel truss girder assembling support is erected on the side edge of a first pier in the middle of the long-line steel truss girder bridge; assembling a first group of steel truss girder sections above the steel truss girder assembling bracket on the side edge of the first bridge pier by utilizing a crawler crane; every time one steel truss girder section is assembled, paving of a lower-layer railway bridge deck is carried out immediately; with the first bridge pier as a starting point, temporary supporting pads are sequentially arranged on the tops of the second bridge pier adjacent to the left side and the third bridge pier adjacent to the right side, and cantilever installation of the second set of steel truss girder sections is conducted towards the two sides with the erected first set of steel truss girder sections as the center; and the next group of steel truss girder sections of the long-line steel truss girder bridge continue to be spliced towards the cantilevers on the two sides until the erection of the whole long-line steel truss girder bridge is completed. During construction, the longitudinal and transverse paving sequence of the bridge deck slab is combined with the jacking and falling sequence of the steel truss girder, and cracks of the concrete bridge deck slab are effectively controlled.
本发明是一种长线多联钢桁梁桥的施工方法，包括以下步骤：在长线钢桁梁桥中间位置的第一桥墩侧边搭设钢桁梁拼装支架；利用履带吊进行第一桥墩侧边钢桁梁拼装支架上方的第一组钢桁梁节段拼装；每拼装完成一个钢桁梁节段，应立即进行下层铁路桥面板的铺装；以第一桥墩为起点，依次在左侧紧邻的第二桥墩和右侧紧邻的第三桥墩顶部设置临时支垫，以已架设完成的第一组钢桁梁节段为中心分别向两侧进行第二组钢桁梁节段的悬臂安装；长线钢桁梁桥的下一组钢桁梁节段继续向两侧悬臂拼装，直至完成整个长线钢桁梁桥的架设。本发明施工时，将桥面板纵向及横向的铺装顺序跟钢桁梁的起顶回落顺序结合起来，有效控制了混凝土桥面板的裂缝。
Construction method of long-line multi-connection steel truss girder bridge
一种长线多联钢桁梁桥的施工方法
LI FEI (Autor:in) / ZHOU JUNLONG (Autor:in) / LIU XIAOMIN (Autor:in) / HUANG KEQI (Autor:in) / TAO BO (Autor:in) / GENG WENBIN (Autor:in) / CAI SONGBAO (Autor:in) / LI XIAOLEI (Autor:in) / YI QIANG (Autor:in) / ZHAO XU (Autor:in)
12.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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