港珠澳大桥C60桥面板混凝土配合比设计与性能  

C60 concrete mixing proportion design of Hong Kong-Zhuhai-Macao bridge deck

作　　者：黄修林[1] 丁庆军[2] 宋晓波[3] 孙华 

机构地区：[1]湖北大学材料学院,湖北武汉430062 [2]武汉理工大学材料学院,湖北武汉430070 [3]辽宁省水利水电勘测设计研究院,辽宁沈阳110006 [4]上海众材工程检测有限公司,上海201203

出　　处：《混凝土》2013年第4期108-111,共4页Concrete

摘　　要：钢混组合梁在支座处桥面板有较大的负弯矩,桥面板混凝土因承受较大的拉应力,易出现开裂问题。针对海洋环境钢混组合梁预制桥面板负弯矩区混凝土在疲劳荷载长期作用下容易产生裂缝等影响桥面板的使用寿命问题,采用高强有机聚合物纤维对混凝土进行增强设计,制备出了工作性能、力学性能和耐久性能优良的混凝土,并进行了港珠澳大桥桥面板模型的浇筑试验。Steel-concrete composite beams exist large negative moment in the supports of the bridge panel, and bridge deck concrete was to prone to crack under a greater tensile stress.The using lifetime problem of the prefabricated bridge deck of the marine environment steel concrete composite beam cracks easily in the long-term effect of fatigue loading on the negative moment area of concrete has been taken consideration.High-strength organic polymer fiber was chosen to make a design to enhance concrete.Concrete with good work performance, excellent mechanical properties and durability has been prepared, and the pouring of the Hong Kong-Zhuhai-Macuo bridge panel model has been test.

关 键 词：港珠澳大桥 桥面板 C60混凝土 配合比 

分 类 号：TU528.062[建筑科学—建筑技术科学]