Abstract: Erhao-Dongsheng?Highway?Bridge?of?Inner?Monglia?is?a?40?m?multi-span?highway?bridge,?which?has?the?structure?of?simply-supported?continuous?prestressed?T?beams.?In?the?process?of?prefabricating?T?beams,?some?cracks?occur?in?a?few?T?beams.?The?crack?causes?are?analyzed?from?several?aspects,?such?as?mixture?ratio,?temperature?and?support?sedimentation,?and?the?corresponding?counter-measures?are?put?forward.

Key words: T beam , crack , mixture ratio , temperature ;

摘要： 内蒙古耳壕??东胜高速公路大桥为多跨40m先简支后结构连续预应力T梁,在预制T梁的过程中,多片T 梁逐渐出现了裂缝。从材料配合比、温度、基座沉降等方面对裂缝进行了分析,并提出了相应的措施。

关键词: T梁, 裂缝, 配合比, 温度