大型预制预应力混凝土梁裂缝的原因和防治  

CAUSES AND PREVENTION OF CRACKS IN LARGE PRECAST PRESTRESSED CONCRETE BEAMS

作　　者：张茅 徐平 王勇 蒲伟 朱扬 ZHANG Mao;XU Ping;WANG Yong;PU Wei;ZHU Yang(China Construction Second Engineering Bureau Co.,Ltd.,100010,Beijing,China)

机构地区：[1]中国建筑第二工程局有限公司西南分公司,北京100010

出　　处：《建筑技术》2020年第10期1262-1265,共4页Architecture Technology

摘　　要：华丽高速公路第20合同段桥梁采用大型预应力混凝土主梁,通过分析梁体裂缝的类型、部位及裂缝原因,针对T梁、箱梁裂缝成因采取措施进行预防与整治,在最大程度上降低了裂缝病害的影响。The bridge of the 20th contract section of Huali Expressway adopts large-scale prestressed concrete girder.By analyzing the types,positions and causes of cracks in the girder body,measures are taken to prevent and remediate the causes of cracks in T-beam and box girder,which minimizes cracks the impact of disease.

关 键 词：预应力混凝土 预制箱梁 预制T梁 梁体裂缝 

分 类 号：TU74[建筑科学—建筑技术科学]