摘要
对一根圆截面钢管混凝土拱肋成型过程混凝土水化热作用下的结构温度场进行了连续的试验观测。在试验实测数据的基础上论述了水化热作用下钢管混凝土拱桥结构温度场的变化规律。试验结果表明:钢管混凝土拱肋截面尺寸不大,结构能够对环境温度有较快的反应,但是成型过程中水化热的影响仍不可忽视,拱肋的截面温度分布具有大体积混凝土温度场内高外低的特性。
Experiment on thermal difference on a circular concrete filled steel tubular (CFST) arch rib was carried out.According to continuous observation on temperature fields by hydration heat on the CFST arch rib in the process of its concrete hardening, the variation laws of temperature field of CFST arch bridge were discussed based on measured data.Results show that the temperature fields by hydration heat on the CFST arch bridge with ordinary diameter are similar to that of mass concrete.
出处
《混凝土》
CAS
CSCD
北大核心
2009年第10期13-15,共3页
Concrete
基金
国家西部交通建设科技项目(200431881426)
广西大学科研基金项目(X071095)
关键词
钢管混凝土
水化热
温度场
试验研究
CFST
hydration heat
temperature field
experimental research