大跨径刚性悬索加劲钢桁架梁桥施工技术
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摘要
重庆市曾家岩大桥为三跨连续刚性悬索加劲钢桁架梁桥,跨径布置为135m+270m+135m,为跨嘉陵江的重要市政桥梁。针对周边建筑物密集、大桥上方存在高压电缆等限制条件,论述了在桥位环境影响下施工方案的比选,简述了钢桁梁施工相关设计和施工工艺。在钢桁梁拼装及吊装过程中,制定了针对性的施工方案和相关安全质量控制措施,取得了较好的效果。
The Zengjiayan Bridge which has special rigid cable is a three-span continuous steel truss bridge of 135 m+270 m+135 m and it is an important municipal bridge across the Jialing river.There are a large amount of construction around the bridge. There are high voltage cables above the bridge and the other limit. This paper gives several construction methods in view of the above-mentioned fact and selects the best one. This paper consists of design concept,construction method contrast and corresponding construction technique. In the process of assembling and hoisting steel truss beams,pertinent construction schemes and related safety and quality construction measures have been formulated,and good results have been achieved.
The Zengjiayan Bridge which has special rigid cable is a three-span continuous steel truss bridge of 135 m+270 m+135 m and it is an important municipal bridge across the Jialing river.There are a large amount of construction around the bridge. There are high voltage cables above the bridge and the other limit. This paper gives several construction methods in view of the above-mentioned fact and selects the best one. This paper consists of design concept,construction method contrast and corresponding construction technique. In the process of assembling and hoisting steel truss beams,pertinent construction schemes and related safety and quality construction measures have been formulated,and good results have been achieved.
引文
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[5]刘永健,刘剑,刘君平,等.刚性悬索加劲钢桁梁桥施工阶段全桥模型试验研究[J].土木工程学报,2012(2):72-78.
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[7]王江平,涂宏未,李元生.东莞东江大桥钢桁梁合龙技术[J].桥梁建设,2010(2):76-79.
[2]董正良,孙晓伟,陈诚.峡谷大跨径钢桁梁斜拉桥上构总体施工方案研究[J].施工技术,2018,47(13):124-126.
[3]田唯,刘丹,谭浩明.珠海横琴二桥钢桁梁合龙技术[J].世界桥梁,2016,44(6):31-35.
[4]苏剑南.重庆市曾家岩嘉陵江大桥钢桁梁架设方案研究[J].世界桥梁,2017,45(2):6-9.
[5]刘永健,刘剑,刘君平,等.刚性悬索加劲钢桁梁桥施工阶段全桥模型试验研究[J].土木工程学报,2012(2):72-78.
[6]李华军,田大千.东新赣江特大桥钢桁梁架设施工技术[J].桥梁建设,2011(2):80-84.
[7]王江平,涂宏未,李元生.东莞东江大桥钢桁梁合龙技术[J].桥梁建设,2010(2):76-79.