Incremental launching construction device and construction method for inclined bottom steel box girder: Fid-Bau Portal

Incremental launching construction device and construction method for inclined bottom steel box girder

KANG YUFEI / CHEN WEIHONG / LI SHAOYI / LI XUESONG / DAI SHILI / HUANG QIANGBIAO / ZHU MAOBING / MIAO YULU / DENG ZHIHONG / SUN MINGQUAN / ... [mehr]

Abstract

The invention discloses an incremental launching construction device and method for a sloping bottom steel box girder, and relates to the technical field of bridge body construction. The two temporary buttresses are vertically arranged on the top face of the supporting beam, and first wedge-shaped steel base plates are arranged on the tops of the temporary buttresses; the large jack assembly is vertically arranged between the two temporary buttresses and can move in the bridge direction relative to the supporting beam, a second wedge-shaped steel base plate is arranged on the top of the large jack assembly, and the top face of the first wedge-shaped steel base plate and the top face of the second wedge-shaped steel base plate are both matched with an inclined bottom plate of the inclined bottom steel box beam. The invention further discloses a construction method based on the incremental launching construction device. According to the incremental launching construction device and method, the problem that incremental launching construction cannot be conducted on the inclined bottom plate of the inclined bottom steel box girder in the prior art is effectively solved.

本申请公开了一种斜底钢箱梁的顶推施工装置及施工方法，涉及桥梁梁体施工技术领域，其包括：沿顺桥向设置的支撑梁；两个竖直设置于支撑梁顶面的临时支墩，其顶部设置第一楔形钢垫板；竖直设置于两个临时支墩中间、且能相对支撑梁沿顺桥向移动的大千斤顶组件，其顶部设置第二楔形钢垫板，所述第一楔形钢垫板和第二楔形钢垫板的顶面均匹配于斜底钢箱梁的斜底板。本申请还公开了基于上述顶推施工装置的施工方法。本申请的顶推施工装置及施工方法，有效解决现有技术中无法在斜底钢箱梁的斜底板进行顶推施工的难题。

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