Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rigid suspension cable stiffening steel truss girder bridge construction method based on cable-stayed buckling and hanging method
The invention discloses a rigid suspension cable stiffening steel truss girder bridge construction method based on a cable-stayed buckling and hanging method. The rigid suspension cable stiffening steel truss girder bridge construction method comprises the steps of S1, completing construction of a bridge foundation, a lower structure, a support, a pier side bracket and a temporary pier; S2, mounting pier top initial internodes on two sides and a bridge deck crane, and completing symmetrical suspension splicing of the pier top internodes through the bridge deck crane; S3, carrying out stiffening chord and suspender construction through the bridge deck crane; S4, carrying out stiffening chord closure construction; S5, carrying out temporary pier padding and ballasting construction, disengaging, and removing a pier side bracket; S6, tensioning a temporary inhaul cable; S7, mounting the last internode steel truss girder of a side span, gradually moving the ballasting to two internodes at the top of a bridge abutment, and emptying the temporary piers; and S8, adopting a single internode closure mode in mid-span closure of a midspan. The method solves problems of static, dynamic and construction control caused by a large dead load in cantilever assembly due to increase of a main span, can shorten field operation time, improves operation efficiency, ensures engineering quality, and conforms to a concept of energy conservation and environmental protection.
本发明公开了一种基于斜拉扣挂法的刚性悬索加劲钢桁梁桥施工方法，包括：S1、完成桥梁基础及下部结构、支座、墩旁托架以及临时墩的施工；S2、安装两侧墩顶起始节间及桥面吊机，通过桥面吊机分别完成墩顶节间的对称悬拼；S3、利用桥面吊机进行加劲弦和吊杆施工；S4、加劲弦合龙施工；S5、临时墩抄垫、压重施工，脱空并解除墩旁托架；S6、张拉临时拉索；S7、完成边跨最后1个节间钢桁梁安装，压重逐次移至桥台顶两个节间，脱空临时墩；S8、中跨跨中合龙采用单节间合龙方式。本发明解决了因主跨增大悬臂拼装中自重荷载较大引起静、动力及施工控制的难题，该工艺可缩短现场作业时间、提高作业工效、确保工程质量、符合节能环保理念。
Rigid suspension cable stiffening steel truss girder bridge construction method based on cable-stayed buckling and hanging method
The invention discloses a rigid suspension cable stiffening steel truss girder bridge construction method based on a cable-stayed buckling and hanging method. The rigid suspension cable stiffening steel truss girder bridge construction method comprises the steps of S1, completing construction of a bridge foundation, a lower structure, a support, a pier side bracket and a temporary pier; S2, mounting pier top initial internodes on two sides and a bridge deck crane, and completing symmetrical suspension splicing of the pier top internodes through the bridge deck crane; S3, carrying out stiffening chord and suspender construction through the bridge deck crane; S4, carrying out stiffening chord closure construction; S5, carrying out temporary pier padding and ballasting construction, disengaging, and removing a pier side bracket; S6, tensioning a temporary inhaul cable; S7, mounting the last internode steel truss girder of a side span, gradually moving the ballasting to two internodes at the top of a bridge abutment, and emptying the temporary piers; and S8, adopting a single internode closure mode in mid-span closure of a midspan. The method solves problems of static, dynamic and construction control caused by a large dead load in cantilever assembly due to increase of a main span, can shorten field operation time, improves operation efficiency, ensures engineering quality, and conforms to a concept of energy conservation and environmental protection.
本发明公开了一种基于斜拉扣挂法的刚性悬索加劲钢桁梁桥施工方法，包括：S1、完成桥梁基础及下部结构、支座、墩旁托架以及临时墩的施工；S2、安装两侧墩顶起始节间及桥面吊机，通过桥面吊机分别完成墩顶节间的对称悬拼；S3、利用桥面吊机进行加劲弦和吊杆施工；S4、加劲弦合龙施工；S5、临时墩抄垫、压重施工，脱空并解除墩旁托架；S6、张拉临时拉索；S7、完成边跨最后1个节间钢桁梁安装，压重逐次移至桥台顶两个节间，脱空临时墩；S8、中跨跨中合龙采用单节间合龙方式。本发明解决了因主跨增大悬臂拼装中自重荷载较大引起静、动力及施工控制的难题，该工艺可缩短现场作业时间、提高作业工效、确保工程质量、符合节能环保理念。
Rigid suspension cable stiffening steel truss girder bridge construction method based on cable-stayed buckling and hanging method
基于斜拉扣挂法的刚性悬索加劲钢桁梁桥施工方法
LIU XIAOYONG (Autor:in) / FAN BO (Autor:in) / ZHANG SIMENG (Autor:in) / MEI LONG (Autor:in) / LIU YING (Autor:in) / LUO SHUANG (Autor:in) / HAO NIEBING (Autor:in) / ZHAO DONGXIAO (Autor:in) / PAN SHIYUN (Autor:in) / YAN AI (Autor:in)
13.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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