三面高温时高强混凝土轴心受压柱强度和变形试验研究*
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（青岛建筑工程学院土木系 266033）
［提要］ 通过12根三面高温时钢筋混凝土轴心受压柱在不同温度下的试验，研究了高强混凝土（C60）轴心受压柱在不均匀温度场下的力学性能，并与普通强度混凝土（C30）轴心受压柱进行了比较。试验结果表明，在不均匀温度场下的高强混凝土轴心受压柱强度和变形与温度、箍筋用量、荷载温度途径及预加荷载水平有关。［关键词］ 高温; 高强混凝土; 轴心受压柱; 强度; 变形Abstract: Through the test of 12 reinforced concrete axial compression columns heated on their three surface at different temperature，the behavior of high-strength reinforced concrete axial compression columns with non-uniform temperature field was researched，and was compared with that of normal-strength reinforced concrete axial compression columns．It is shown that the strength and deformation of high-strength reinforced concrete axial compression columns with non-uniform temperature field are related to the temperature reached，the quality of hoops，the loading and heating paths，as well as the pre-load level．Keywords：high temperature；high—strength reinforced concrete；axial compression column；strength；deformation
