预应力混凝土T型梁水化热温度测试与分析  

Test and Analysis of Hydration Temperature of Prestressed Concrete T-beam

作　　者：马云龙[1] 贾艳敏[1] 严古龙 

机构地区：[1]东北林业大学土木工程学院,哈尔滨150040

出　　处：《森林工程》2014年第2期130-134,共5页Forest Engineering

基　　金：内蒙古交通厅科技项目(nj-2012-12)

摘　　要：温度应力是混凝土桥梁出现裂缝的主要原因之一,在混凝土T型梁水化热阶段会产生大量的热量,随着热量的流动,裂缝会出现和扩展,从而抑制热量的流动。分析水化热阶段的温度分布以及温度应力分布具有重要的意义。本文由理论联系工程实例对内蒙古宝贝河大桥T型梁水化热阶段进行分析,从而优化预应力混凝土T型梁的施工工艺。Temperature stress is one of the main reasons why concrete bridge cracks. In the stage of heat hydration, concrete T- beam will generate a lot of heat. As the heat flow, the crack will occur and expand, thereby inhibiting heat flow. The analysis on tem- perature distribution and temperature stress distribution has important significance. This paper takes the Inner Baby River Bridge T-beam as an example to analyze the hydration heat stages in order to optimize the construction technology of prestressed concrete T beam.

关 键 词：混凝土T型梁 水化热 温度应力 

分 类 号：S773.4[农业科学—森林工程]