Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Highway plate girder dismounting and replacing construction method and bridge abutment supporting device
The invention provides a highway plate girder dismounting and replacing construction method and an abutment supporting device, and the specific method is that a construction mode of dismounting and replacing plates at intervals through jumping holes is adopted, abutment supporting mechanisms are symmetrically arranged from the two sides of an abutment to the center, and the abutment supporting mechanisms are placed after a certain width of the outer side of a plate girder is dismounted; and then a second batch of bridge abutment supporting mechanisms are placed after the plate girders close to the middle position are dismantled, and so on until dismantling is completed, the sequence is opposite during installation, the plate girders are sequentially installed from the middle to the two sides, and then the supporting mechanisms are dismantled until new plate girders are installed. According to the method, the situation that the abutment body inclines forwards after the upper plate girder is dismantled can be effectively avoided, it is ensured that after the plate girder is dismantled, the abutment cannot generate structural stress cracks under the lateral pressure of abutment back backfill soil, implementation is easy, practicability is high, local materials can be used, cost is low, and popularization and implementation are convenient.
本发明提供一种公路板梁拆换施工方法和桥台支撑装置，其具体的方法是采用跳孔间隔拆除换板的施工方式，将桥台支撑机构从桥台的两边往中心的位置对称设置，板梁拆除完外侧一定宽度后即放置桥台支撑机构，再接着拆除靠中间位置的板梁后放置第二批桥台支撑机构，依次类推直至完成拆除，安装时顺序相反，从中间向两侧依次先安装板梁再拆除支撑机构，直至新的板梁安装完成。本发明能有效避免上部板梁拆除后桥台台身前倾的情况发生，确保板梁拆除后，桥台不会在台背回填土的侧向压力下而发生结构受力裂缝，且实施简单，实用性强，且可就地取材，成本低，便于推广实施。
Highway plate girder dismounting and replacing construction method and bridge abutment supporting device
The invention provides a highway plate girder dismounting and replacing construction method and an abutment supporting device, and the specific method is that a construction mode of dismounting and replacing plates at intervals through jumping holes is adopted, abutment supporting mechanisms are symmetrically arranged from the two sides of an abutment to the center, and the abutment supporting mechanisms are placed after a certain width of the outer side of a plate girder is dismounted; and then a second batch of bridge abutment supporting mechanisms are placed after the plate girders close to the middle position are dismantled, and so on until dismantling is completed, the sequence is opposite during installation, the plate girders are sequentially installed from the middle to the two sides, and then the supporting mechanisms are dismantled until new plate girders are installed. According to the method, the situation that the abutment body inclines forwards after the upper plate girder is dismantled can be effectively avoided, it is ensured that after the plate girder is dismantled, the abutment cannot generate structural stress cracks under the lateral pressure of abutment back backfill soil, implementation is easy, practicability is high, local materials can be used, cost is low, and popularization and implementation are convenient.
本发明提供一种公路板梁拆换施工方法和桥台支撑装置，其具体的方法是采用跳孔间隔拆除换板的施工方式，将桥台支撑机构从桥台的两边往中心的位置对称设置，板梁拆除完外侧一定宽度后即放置桥台支撑机构，再接着拆除靠中间位置的板梁后放置第二批桥台支撑机构，依次类推直至完成拆除，安装时顺序相反，从中间向两侧依次先安装板梁再拆除支撑机构，直至新的板梁安装完成。本发明能有效避免上部板梁拆除后桥台台身前倾的情况发生，确保板梁拆除后，桥台不会在台背回填土的侧向压力下而发生结构受力裂缝，且实施简单，实用性强，且可就地取材，成本低，便于推广实施。
Highway plate girder dismounting and replacing construction method and bridge abutment supporting device
一种公路板梁拆换施工方法和桥台支撑装置
YANG BIAO (Autor:in) / KANG JIANMIN (Autor:in) / MA JIE (Autor:in) / ZHAO BO (Autor:in)
14.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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