Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge underpinning support device under low clearance and construction method
The invention relates to a low-clearance lower bridge underpinning support device and a construction method, phi 900 steel pipe stand columns are adopted to support a cross beam, a longitudinal beam and a connecting beam on the two sides of a pier column of a bridge section needing underpinning respectively, the longitudinal beam and the cross beam are limited and fixed through a limiting device, and distribution beams and stiffening plates are symmetrically arranged below the cross beam; jacks and phi 609 steel pipe stand columns are symmetrically installed between the distribution beam and the bridge and between the stiffening plate and the bridge, the jacks are installed in an inverted mode, and meanwhile conversion top caps are arranged between the jacks and the phi 609 steel pipe stand columns. The problems that the lower clear height of an existing bridge is limited, and a traditional component hoisting construction method cannot be used can be solved. A bridge support is broken up into parts, firstly, the in-situ elevation is lowered by 2-3 m, the support is jacked to the in-situ elevation through repeated replacement of a jack, a conversion joint and a standard joint, and the bridge underpinning construction requirement is met; through modularized self-adaptive adjustment, the problem of installation of the underpinning support below the existing operation bridge is successfully solved.
本发明涉及一种低净空下桥梁托换支架装置及施工方法，在需托换桥梁段墩柱两侧分别采用φ900钢管立柱支撑横梁、纵梁及连系梁，纵梁与横梁采用限位装置进行限位固定，横梁下面对称设置分配梁及加劲板，分配梁及加劲板与桥梁之间对称安装千斤顶和φ609钢管立柱，且千斤顶倒置安装，同时千斤顶与φ609钢管立柱之间设置转换顶帽。本发明能够解决既有桥梁下净高受限，传统的构件吊装施工方法不可用的问题。通过将桥梁支架化整为零，先在原位标高下降2～3m，利用千斤顶、转换节及标准节的多次替换，将支架顶升至原位标高，满足桥梁托换施工要求；通过模块化自适应调节，成功解决既有运营桥梁下方托换支架安装难题。
Bridge underpinning support device under low clearance and construction method
The invention relates to a low-clearance lower bridge underpinning support device and a construction method, phi 900 steel pipe stand columns are adopted to support a cross beam, a longitudinal beam and a connecting beam on the two sides of a pier column of a bridge section needing underpinning respectively, the longitudinal beam and the cross beam are limited and fixed through a limiting device, and distribution beams and stiffening plates are symmetrically arranged below the cross beam; jacks and phi 609 steel pipe stand columns are symmetrically installed between the distribution beam and the bridge and between the stiffening plate and the bridge, the jacks are installed in an inverted mode, and meanwhile conversion top caps are arranged between the jacks and the phi 609 steel pipe stand columns. The problems that the lower clear height of an existing bridge is limited, and a traditional component hoisting construction method cannot be used can be solved. A bridge support is broken up into parts, firstly, the in-situ elevation is lowered by 2-3 m, the support is jacked to the in-situ elevation through repeated replacement of a jack, a conversion joint and a standard joint, and the bridge underpinning construction requirement is met; through modularized self-adaptive adjustment, the problem of installation of the underpinning support below the existing operation bridge is successfully solved.
本发明涉及一种低净空下桥梁托换支架装置及施工方法，在需托换桥梁段墩柱两侧分别采用φ900钢管立柱支撑横梁、纵梁及连系梁，纵梁与横梁采用限位装置进行限位固定，横梁下面对称设置分配梁及加劲板，分配梁及加劲板与桥梁之间对称安装千斤顶和φ609钢管立柱，且千斤顶倒置安装，同时千斤顶与φ609钢管立柱之间设置转换顶帽。本发明能够解决既有桥梁下净高受限，传统的构件吊装施工方法不可用的问题。通过将桥梁支架化整为零，先在原位标高下降2～3m，利用千斤顶、转换节及标准节的多次替换，将支架顶升至原位标高，满足桥梁托换施工要求；通过模块化自适应调节，成功解决既有运营桥梁下方托换支架安装难题。
Bridge underpinning support device under low clearance and construction method
一种低净空下桥梁托换支架装置及施工方法
ZHOU XUELIAN (Autor:in) / JIA SHUAIFENG (Autor:in) / ZHANG SONGBO (Autor:in) / JIN RENXING (Autor:in) / GUO HONGBIN (Autor:in) / JIN DONGHUA (Autor:in) / LIAN HAIJIAN (Autor:in) / SHEN LIQIANG (Autor:in)
05.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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