（中铁第五勘察设计院集团有限公司， 北京 102600）

［摘要］基于中国规范和英国规范中的相关规定，结合斯里兰卡南部马特勒-卡塔拉伽马铁路工程中站房风雨棚设计实例，对中英两国钢管混凝土柱的构造要求及设计方法进行了比较。对比分析表明：中国规范可选用的钢管强度等级种类较多，两国规范对柱内混凝土最低强度等级要求基本一致；对于风荷载为主导可变荷载的开敞式建筑，按中国规范计算的荷载设计值较大；中国规范对立柱长细比的限制更严格，规定的钢管径厚比限值较大，因此按中国规范设计用钢量较小，更为经济；按中国规范设计立柱的抗力效应比小，安全性高。

［关键词］设计方法； 规范； 钢管混凝土柱； 抗力效应比

中图分类号：TU398文献标识码：A文章编号：1002-848X(2018)22-0056-06

Comparative study on concrete filled steel tubular column design  method of Chinese and British codes

Li Qi

(China Railway Fifth Survey and Design Institute Group Co., Ltd., Beijing 102600， China)

Abstract:Based on relevant regulations in Chinese and British codes for concrete filled steel tubular column and combining the structure design for station platform canopy of Matara-Kataragama railway extension project in Sri Lanka, structural requirement and general design methodology were compared. Comparative analysis shows that: the range of steel strength specified in Chinese code is wider and the minimum cube strength requirement of concrete filled inside steel tubes is basically identical in both codes. The design loads calculated by Chinese code are higher for open-style architectures on which the wind load dominates. Slenderness ratio is more restrictive prescribed and the allowable ratio of steel tube′s external dimension to wall thickness is larger in Chinese code, therefore, steel quantity is lower and better economy is achieved if designed according to Chinese code. Moreover, the ratio of resistance to load effect calculated according to Chinese code is lower, therefore, Chinese code gives more safety margin against ultimate loads.

Keywords:design method; code; concrete filled steel tubular column; ratio of resistance to load effect

作者简介：李启，博士，工程师，Email: 403892114@qq.com。