大跨钢-混凝土组合廊桥楼道板混凝土裂缝控制技术  

Concrete Crack Control Technology of Long-span Steel-concrete Composite Covered Bridge Corridor Board

作　　者：胡义新[1,2] 叶成顺 别亚威 巫兴发 HU Yixin;YE Chengshun;BIE Yawei;WU Xingfa(CCCC Second Harbour Engineering Co.,Ltd.,Wuhan,Hubei 430040,China;CCCC Fuzhou Construction Co.,Ltd.,Fuzhou,Fujian 350000,China;No.6 Branch of CCCC Second Harbour Engineering Co.,Ltd.,Wuhan,Hubei 430014,China)

机构地区：[1]中交第二航务工程局有限公司,湖北武汉430040 [2]中交(福州)建设有限公司,福建福州350000 [3]中交第二航务工程局有限公司第六工程分公司,湖北武汉430014

出　　处：《施工技术》2021年第10期98-100,105,共4页Construction Technology

摘　　要：以某大跨廊桥展廊楼道板混凝土施工为例,首先从混凝土开裂机理进行分析,再从施工工艺优选、新型结构设计及混凝土性能优化等方面开展应用研究,从而形成大跨组合结构混凝土裂缝控制成套技术。实践证明,该技术可有效解决大跨钢-混凝土组合廊桥楼道板混凝土易开裂的问题,具有良好的推广价值。Taking the concrete construction of an exhibition gallery of a long-span covered bridge corridor board as an example, firstly, the mechanism of concrete cracking is analyzed, and then the application research is carried out from the aspects of construction technology optimization, new structure design and concrete performance optimization, so as to form a complete set of crack control technology for large-span composite structure concrete. Practice has proved that the technology can effectively solve the problem of easy cracking of long-span steel-concrete composite covered bridge corridor board concrete, and has good popularization value.

关 键 词：廊桥 钢-混凝土组合结构 混凝土 裂缝控制 

分 类 号：TU755[建筑科学—建筑技术科学]