关键词: T梁, 裂缝, 配合比, 温度

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 ;