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第 13 卷第 2 期中国公路学报 V o l 13 N o 2
2000 年 4 月 Ch ina Jou rnal of H ighw ay and T ran spo rt A p r. 2000
文章编号: 1001 7372 (2000) 02 0052 05
钢管混凝土拱桥温度内力计算时温差取值分析
陈宝春, 徐爱民, 孙潮
(福州大学土木建筑工程学院, 福建福州 350002)
摘要: 提出钢管混凝土拱桥计算合拢温度的概念, 进行了钢管混凝土构件截面温度场测试和钢管
混凝土拱桥温度变化值的计算机分析。分析结果认为2 2 , 钢管混凝土拱桥的计算合拢温度主要取决于
管径和管内混凝土浇筑后一个月内的平均温度以及空钢管合拢温度。钢管混凝土拱桥的计算温度2
取日平均温度较为合理。
关键词: 钢管混凝土; 拱桥; 温差
中图分类号: U 441 5 文献标识码: A
Analysis of thermal d ifference magn itude in thermal lnner
force calculation of CFST arch br idge
CH EN Bao chun, XU A i m in, SUN Chao
(Co llege of C ivil and A rch itecture Engineering, Fuzhou U niversity, Fuzhou 350002, Ch ina)
Abstract: T he concep t of calcu lation closu re temperatu re of CFST arch b ridge is p resen ted, the
tests of the therm al field of CFST co lum n s pu ter num erical analysis of the therm al change
m agn itude of CFST arch b ridges are carried ou t. W ith the resu lts amp lified, the calcu lation closu re
temperatu re of CFST arch b ridge depends m ain ly on the diam eter of the tube, the average
temperatu re of the mon th after the concrete in the tube is filled as w ell as the closu re temperatu re
of the ho llow steel tube arch. T he daily average temperatu re is cooperated w ell w ith the
calcu lation temperatu re.
Key words: CFST; arch b ridge; therm al difference
钢管混凝土拱桥基本上是超静定结构。超静定的钢管混凝土结
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