摘要
通过实验检测不同加载方式和温度变化对梁的挠度和应变产生的不同的影响结果表明:均布荷载、跨中一点加载、左右l/4处两点加载、左右l/4处及跨中三点加载最大挠度值与理论计算基本相符;预应力钢筋混凝土梁在加载-卸载循环充分和不充分的两种情况下,挠度的差异并不大,但应变存在较大的差异;温度对梁体的挠度有一定影响,温度升高时,梁体的变形加大。
Compared the test results with theory,the paper analysed the effect of different loading method and temperature change on the deflection and strain of steel-concrete beams. Some problems in construction. The test results show:between beam well- prestressed and beam non-well-prestressed the difference of strain is wider than that of deflection. The deflection increases with temperature.
出处
《土工基础》
2003年第4期63-65,68,共4页
Soil Engineering and Foundation
