Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge large cantilever flange plate reinforcing construction method
The invention discloses a reinforcing construction method for a large cantilever flange plate of a bridge. The problem that a bridge deck asphalt paving layer cracks due to the hogging moment phenomenon existing in an existing reinforcing process for the large cantilever flange plate is solved. According to the method, a jack, a steel wire rope and a steel rib plate are used for reinforcing the old bridge after correction, opposite force is applied before concrete is paved, so that a flange plate is in an upwarp state, steel fibers are reinforced in the upwarp state, the first stage is that the concrete, the steel fibers and the steel rib plate are used for restoring the overall rigidity of the bridge. Before asphalt is paved, the counter weight is applied, the bridge deck is simulated to have a vehicle-mounted state, the counter weight is removed after the asphalt is paved, and the asphalt pavement is in a pressed state under the combined action of the flange plates, the concrete, the steel fibers and the steel rib plates, so that the problem of cracking of the asphalt paving layer of the bridge deck is solved, and the construction quality and the construction effect of the bridge deck are improved.
本发明公开了一种桥梁大悬臂翼缘板加固施工方法，解决现有大悬臂翼缘板加固工艺中存在的负弯矩现象而导致的桥面沥青摊铺层开裂的问题。该方法使用了千斤顶、钢丝绳、钢肋板对旧桥进行矫正后的加固，在摊铺混凝土之前施加反向力，使得翼缘板处于上翘的状态，并在该状态下进行钢纤维的加固，此为第一阶段，其中混凝土、钢纤维和钢肋板用于恢复桥梁的整体刚度。并在沥青摊铺之前，施加配重，模拟桥面有车载状态，沥青摊铺完成后撤去该配重，在翼缘板和混凝土、钢纤维、钢肋板的联合作用下，使得沥青路面处于受压状态，从而解决了桥面沥青摊铺层开裂的问题，提高了桥面的施工质量和施工效果。
Bridge large cantilever flange plate reinforcing construction method
The invention discloses a reinforcing construction method for a large cantilever flange plate of a bridge. The problem that a bridge deck asphalt paving layer cracks due to the hogging moment phenomenon existing in an existing reinforcing process for the large cantilever flange plate is solved. According to the method, a jack, a steel wire rope and a steel rib plate are used for reinforcing the old bridge after correction, opposite force is applied before concrete is paved, so that a flange plate is in an upwarp state, steel fibers are reinforced in the upwarp state, the first stage is that the concrete, the steel fibers and the steel rib plate are used for restoring the overall rigidity of the bridge. Before asphalt is paved, the counter weight is applied, the bridge deck is simulated to have a vehicle-mounted state, the counter weight is removed after the asphalt is paved, and the asphalt pavement is in a pressed state under the combined action of the flange plates, the concrete, the steel fibers and the steel rib plates, so that the problem of cracking of the asphalt paving layer of the bridge deck is solved, and the construction quality and the construction effect of the bridge deck are improved.
本发明公开了一种桥梁大悬臂翼缘板加固施工方法，解决现有大悬臂翼缘板加固工艺中存在的负弯矩现象而导致的桥面沥青摊铺层开裂的问题。该方法使用了千斤顶、钢丝绳、钢肋板对旧桥进行矫正后的加固，在摊铺混凝土之前施加反向力，使得翼缘板处于上翘的状态，并在该状态下进行钢纤维的加固，此为第一阶段，其中混凝土、钢纤维和钢肋板用于恢复桥梁的整体刚度。并在沥青摊铺之前，施加配重，模拟桥面有车载状态，沥青摊铺完成后撤去该配重，在翼缘板和混凝土、钢纤维、钢肋板的联合作用下，使得沥青路面处于受压状态，从而解决了桥面沥青摊铺层开裂的问题，提高了桥面的施工质量和施工效果。
Bridge large cantilever flange plate reinforcing construction method
桥梁大悬臂翼缘板加固施工方法
LI GANG (Autor:in) / TAN ZHONGKUN (Autor:in) / SONG XIAOJIN (Autor:in) / YI XIN (Autor:in) / LUO MIN (Autor:in)
20.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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