Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel box girder jacking and descending construction method
The invention discloses a steel box girder jacking and descending construction method. The method comprises the following steps that S1, construction preparation is conducted; s2, arranging jacks; s3, the jack upwards jacks the steel beam, a layer of steel cushion block is additionally padded at the top of the support, the jack falls back, and a layer of supporting cushion steel plate is additionally padded at the top of the jack; the operation is repeated until the steel beam reaches the designed jacking height; s4, the jack upwards jacks the steel beam, the uppermost layer of steel cushion block on the support is pulled away, the jack falls back, and the uppermost layer of supporting steel plate on the jack is pulled away; the jack upwards jacks the steel beam again, the uppermost-layer steel cushion block on the support is pulled away, the jack falls back again, and the uppermost-layer supporting steel plate on the jack is pulled away; and the operation is repeated until the steel beam falls onto the support. The jacking and falling precision and stability of the steel box girder can be effectively guaranteed, so that the jacking and falling safety of the steel box girder is guaranteed, cracking of the steel box girder bridge deck slab is avoided, and it is guaranteed that construction of the steel box girder deck slab is rapidly and effectively completed on site.
本发明公开了一种钢箱梁顶升落梁施工方法，包括如下步骤：S1：施工准备；S2：布置千斤顶；S3：千斤顶向上顶升钢梁，在支座顶部加垫一层钢垫块，千斤顶回落，在千斤顶的顶部加垫一层支垫钢板；如此反复操作直至钢梁达到设计顶升高度；S4：千斤顶向上顶升钢梁，抽离支座上的最上层钢垫块，千斤顶回落，抽离千斤顶上的最上层支垫钢板；千斤顶再次向上顶升钢梁，抽离支座上的最上层钢垫块，千斤顶再次回落，抽离千斤顶上的最上层支垫钢板；如此反复操作直至钢梁落至支座上。本发明可使钢箱梁顶升及回落精度和稳定性得到有效保障，从而保证钢箱梁顶升和回落的安全性，进而避免钢箱梁桥面板开裂，确保现场快速有效地完成钢箱梁面板施工。
Steel box girder jacking and descending construction method
The invention discloses a steel box girder jacking and descending construction method. The method comprises the following steps that S1, construction preparation is conducted; s2, arranging jacks; s3, the jack upwards jacks the steel beam, a layer of steel cushion block is additionally padded at the top of the support, the jack falls back, and a layer of supporting cushion steel plate is additionally padded at the top of the jack; the operation is repeated until the steel beam reaches the designed jacking height; s4, the jack upwards jacks the steel beam, the uppermost layer of steel cushion block on the support is pulled away, the jack falls back, and the uppermost layer of supporting steel plate on the jack is pulled away; the jack upwards jacks the steel beam again, the uppermost-layer steel cushion block on the support is pulled away, the jack falls back again, and the uppermost-layer supporting steel plate on the jack is pulled away; and the operation is repeated until the steel beam falls onto the support. The jacking and falling precision and stability of the steel box girder can be effectively guaranteed, so that the jacking and falling safety of the steel box girder is guaranteed, cracking of the steel box girder bridge deck slab is avoided, and it is guaranteed that construction of the steel box girder deck slab is rapidly and effectively completed on site.
本发明公开了一种钢箱梁顶升落梁施工方法，包括如下步骤：S1：施工准备；S2：布置千斤顶；S3：千斤顶向上顶升钢梁，在支座顶部加垫一层钢垫块，千斤顶回落，在千斤顶的顶部加垫一层支垫钢板；如此反复操作直至钢梁达到设计顶升高度；S4：千斤顶向上顶升钢梁，抽离支座上的最上层钢垫块，千斤顶回落，抽离千斤顶上的最上层支垫钢板；千斤顶再次向上顶升钢梁，抽离支座上的最上层钢垫块，千斤顶再次回落，抽离千斤顶上的最上层支垫钢板；如此反复操作直至钢梁落至支座上。本发明可使钢箱梁顶升及回落精度和稳定性得到有效保障，从而保证钢箱梁顶升和回落的安全性，进而避免钢箱梁桥面板开裂，确保现场快速有效地完成钢箱梁面板施工。
Steel box girder jacking and descending construction method
一种钢箱梁顶升落梁施工方法
WANG HU (Autor:in) / QIN DINGSONG (Autor:in) / TONG LIGANG (Autor:in) / XU HONG (Autor:in) / ZHAO BIN (Autor:in) / XU CHANGFEI (Autor:in) / WANG ZENGHUI (Autor:in) / FENG SICHAO (Autor:in) / BI ZHANGLONG (Autor:in) / SHEN JIE (Autor:in)
29.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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