摘要
绥芬河斜拉桥的施工过程中进行了全候的温度效应观测。根据实测的温度效应数据,从索梁温差、主梁顶底板温差、主塔两侧温差及整体性温差四个方面进行了混凝土斜拉桥的温度效应分析,验证了所采用计算方法的适用性,提出了转体施工万吨斜拉桥回避昼夜温差产生的温度效应的方法。
Based on the characteristic that season temperature difference and diurnal temperature difference in bitter cold area are big, with the measured temperature data for stayed - cable bridge, temperature effect law of stayed - cable bridge is analyzed in bitter cold area in finite element method from four aspects which are cable and beam temperature difference, upper and lower limb temperature difference of main beam, two sides temperature difference of main tower and integrity temperature difference. In the end, the serviceability of the calculate method used in this paper is concluded, temperature effect law during the construction stages of concrete stayed -cable bridge in bitter cold area is illustrated, influence caused by season temperature difference can＇ t be neglected in bitter cold area and suitable method for avoiding the influence caused by diurnal temperature difference are proposed.
出处
《黑龙江交通科技》
2008年第3期57-60,共4页
Communications Science and Technology Heilongjiang
关键词
严寒地区
斜拉桥
温度效应
bitter cold area
stayed - cable bridge
temperature effect
