干燥地区钢筋混凝土构件的变形和裂缝
- 摘 要
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张保和 (上海市建筑科学研究院200032)王安省 (乌鲁木齐铁路局)[提要] 通过在极干燥地区吐鲁番和乌鲁木齐两地的钢筋混凝土梁长期荷载试验及同环境中进行的混凝土收缩、徐变试验,研究了干燥环境下钢筋混凝土受弯构件在长期荷载作用下变形,裂缝的发展规律。
[关键词] 钢筋混凝土 受弯构件 长期荷载 干燥 变形 裂缝
According to the tests conducted in Turpan and Urumqi, the authors draw conclusions that the long -term deformation of RC beams in drying areas is mainly affected by the shrinkage of concrete in compression zone and the change of humidity.
Keywords: long- term load; drying; deformation; crack