Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of steel connecting bridge crossing road above subway
The invention relates to a construction method of a steel connecting bridge crossing a road above a metro, which comprises the following steps: S1, pile foundations are constructed on two sides of the road and at positions away from the metro, and the construction steps of the pile foundation on each side comprise: drilling a pouring hole, providing a pile casing, lowering the pile casing into the pouring hole, binding reinforcing steel bars in the pile casing and pouring concrete to form a cast-in-situ bored pile; a pile cap is fixed to the top of the cast-in-situ bored pile; s2, a bridge frame is connected between the pile caps on the two sides in a bridging mode; and S3, splicing the middle section of the steel connecting bridge above the pile cap, moving the middle section of the steel connecting bridge to the connecting bridge frame, splicing two side sections of the steel connecting bridge, and fixing the two side sections with the middle section of the steel connecting bridge and the existing building respectively. According to the method, the hole is drilled above the metro, the outer sleeve pile casing is arranged, the cast-in-situ bored pile is constructed in the outer sleeve pile casing to serve as the pile foundation, stress is guaranteed, meanwhile, disturbance of pile foundation construction on soil around the metro station is greatly reduced, and the influence of steel connecting bridge construction on the metro station below is avoided.
本发明涉及种横跨地铁上方道路的钢连桥施工方法，包括以下步骤：S1、在道路两侧且避开地铁的位置施工桩基础，每侧桩基础的施工步骤包括：钻灌注孔，提供护筒，并将护筒下放至灌注孔内，护筒内绑扎钢筋并浇筑混凝土，以形成钻孔灌注桩；于钻孔灌注桩的顶部固定一桩承台；S2、在两侧桩承台之间跨接连桥架；S3、在桩承台上方进行钢连桥中间段的拼接，并将钢连桥中间段移动至连桥架上，拼接两个钢连桥边段，将两个边段分别与钢连桥中间段和现有建筑固定在一起。本发明在地铁上方钻孔并设置外套护筒，并在外套护筒内施工钻孔灌注桩作为桩基础，在保证受力的同时大幅降低了桩基础施工对地铁站周围土体的扰动，避免了钢连桥施工对下方地铁站的影响。
Construction method of steel connecting bridge crossing road above subway
The invention relates to a construction method of a steel connecting bridge crossing a road above a metro, which comprises the following steps: S1, pile foundations are constructed on two sides of the road and at positions away from the metro, and the construction steps of the pile foundation on each side comprise: drilling a pouring hole, providing a pile casing, lowering the pile casing into the pouring hole, binding reinforcing steel bars in the pile casing and pouring concrete to form a cast-in-situ bored pile; a pile cap is fixed to the top of the cast-in-situ bored pile; s2, a bridge frame is connected between the pile caps on the two sides in a bridging mode; and S3, splicing the middle section of the steel connecting bridge above the pile cap, moving the middle section of the steel connecting bridge to the connecting bridge frame, splicing two side sections of the steel connecting bridge, and fixing the two side sections with the middle section of the steel connecting bridge and the existing building respectively. According to the method, the hole is drilled above the metro, the outer sleeve pile casing is arranged, the cast-in-situ bored pile is constructed in the outer sleeve pile casing to serve as the pile foundation, stress is guaranteed, meanwhile, disturbance of pile foundation construction on soil around the metro station is greatly reduced, and the influence of steel connecting bridge construction on the metro station below is avoided.
本发明涉及种横跨地铁上方道路的钢连桥施工方法，包括以下步骤：S1、在道路两侧且避开地铁的位置施工桩基础，每侧桩基础的施工步骤包括：钻灌注孔，提供护筒，并将护筒下放至灌注孔内，护筒内绑扎钢筋并浇筑混凝土，以形成钻孔灌注桩；于钻孔灌注桩的顶部固定一桩承台；S2、在两侧桩承台之间跨接连桥架；S3、在桩承台上方进行钢连桥中间段的拼接，并将钢连桥中间段移动至连桥架上，拼接两个钢连桥边段，将两个边段分别与钢连桥中间段和现有建筑固定在一起。本发明在地铁上方钻孔并设置外套护筒，并在外套护筒内施工钻孔灌注桩作为桩基础，在保证受力的同时大幅降低了桩基础施工对地铁站周围土体的扰动，避免了钢连桥施工对下方地铁站的影响。
Construction method of steel connecting bridge crossing road above subway
一种横跨地铁上方道路的钢连桥施工方法
XIAO BIJIANG (Autor:in) / WANG TAO (Autor:in) / CHEN LEI (Autor:in) / YAO DONG (Autor:in) / WU ZHEN (Autor:in) / XU JUNFENG (Autor:in) / YANG JIANWEI (Autor:in)
06.12.2024
Patent
Elektronische Ressource
Chinesisch
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