A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Expressway bridge floor pavement structure transformation construction method
The invention provides an expressway bridge floor pavement structure transformation construction method. The method comprises the following steps: positioning and paying off on an old bridge surface,milling an asphalt concrete surface layer, chiseling off a reinforced concrete pavement layer, roughening the old bridge surface, arranging an upper-layer reinforcing mesh and a lower-layer reinforcing mesh, pouring a steel fiber concrete pavement layer, and arranging an ultrathin asphalt concrete wear-resistant overlay. The technical scheme provided by the invention is used for thickening and reinforcing the bridge floor concrete pavement layer; the poured cement concrete pavement layer and an old girder body form a fixed whole; the stress form of the original pavement layer combination is changed, the thickness of the asphalt concrete surface layer is reduced, the durability of the bridge floor pavement layer is improved, the stress condition of the original bridge floor pavement layer is improved, daily maintenance operation of a bridge is facilitated, reference is provided for similar engineering practices, and good economic benefits and social benefits are achieved.
本发明提供一种高速公路桥面铺装结构改造施工方法，包括：在旧桥桥面上定位放线，铣刨沥青混凝土面层，凿除钢筋混凝土铺装层，对旧桥面进行凿毛处理，设置上层钢筋网片和下层钢筋网片，浇筑钢纤维混凝土铺装层，设置超薄沥青混凝土耐磨耗罩面层。本发明提供的技术方案用于加厚加强桥面混凝土铺装层，而且使得浇筑的水泥混凝土铺装层与旧梁体形成固定整体，改变原铺装层组合的受力形式，降低了沥青混凝土面层的厚度，提高了桥面铺装层的耐久性，改良了原桥面铺装层的受力状况，便于桥梁的日常养护作业，为类似工程实践提供借鉴，具有良好的经济效益和社会效益。
Expressway bridge floor pavement structure transformation construction method
The invention provides an expressway bridge floor pavement structure transformation construction method. The method comprises the following steps: positioning and paying off on an old bridge surface,milling an asphalt concrete surface layer, chiseling off a reinforced concrete pavement layer, roughening the old bridge surface, arranging an upper-layer reinforcing mesh and a lower-layer reinforcing mesh, pouring a steel fiber concrete pavement layer, and arranging an ultrathin asphalt concrete wear-resistant overlay. The technical scheme provided by the invention is used for thickening and reinforcing the bridge floor concrete pavement layer; the poured cement concrete pavement layer and an old girder body form a fixed whole; the stress form of the original pavement layer combination is changed, the thickness of the asphalt concrete surface layer is reduced, the durability of the bridge floor pavement layer is improved, the stress condition of the original bridge floor pavement layer is improved, daily maintenance operation of a bridge is facilitated, reference is provided for similar engineering practices, and good economic benefits and social benefits are achieved.
本发明提供一种高速公路桥面铺装结构改造施工方法，包括：在旧桥桥面上定位放线，铣刨沥青混凝土面层，凿除钢筋混凝土铺装层，对旧桥面进行凿毛处理，设置上层钢筋网片和下层钢筋网片，浇筑钢纤维混凝土铺装层，设置超薄沥青混凝土耐磨耗罩面层。本发明提供的技术方案用于加厚加强桥面混凝土铺装层，而且使得浇筑的水泥混凝土铺装层与旧梁体形成固定整体，改变原铺装层组合的受力形式，降低了沥青混凝土面层的厚度，提高了桥面铺装层的耐久性，改良了原桥面铺装层的受力状况，便于桥梁的日常养护作业，为类似工程实践提供借鉴，具有良好的经济效益和社会效益。
Expressway bridge floor pavement structure transformation construction method
一种高速公路桥面铺装结构改造施工方法
WEI YIQIANG (author) / DONG XUMING (author) / XU QINGFENG (author) / ZHAO YUNCHUAN (author) / MENG LIQIANG (author) / YAN YUFENG (author) / YANG ZHENJIANG (author) / YANG JIANMIN (author) / GUAN YONGWEI (author) / ZHANG RUIBIN (author)
2020-05-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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