（苏州设计研究院股份有限公司， 苏州 215021）

［摘要］某银行主楼与裙房之间设置了下部挑空3层的中庭，4层的行政餐厅采用钢桁架来实现中庭大空间的建筑功能要求，中庭连廊平面呈梯形。通过计算，对每榀桁架进行了多方案比较，最终确定了最优的截面布置。通过桁架整体计算，对桁架固定支座处存在的水平力进行了分析，并采用了合理的节点设计以及合适的加载方式，充分考虑了水平力对结构的影响，完成了钢桁架的结构设计。

［关键词］钢桁架; 桁架支座; 水平力; 加载方式

中图分类号：TU391文献标识码：A文章编号：1002-848X(2014)01-0012-04

Steel structure design on atrium of a bank building in Suzhou

Dai Yaping, Zhang Zhigang, Chen Lei

（Suzhou Institute of Architectural Design Co., Ltd., Suzhou 215021, China）

Abstract: A three-layer-high atrium space is located between skirt building and the main building of a bank. The administration restaurant at the fourth floor, which forms a ladder shape, adopts steel truss structure to realize architecture requirements of large space in atrium. Different steel truss arrangements were compared through analysis to determine optimal cross-section layout. Through calculation of the overall truss, horizontal forces of fixed bearings were analyzed. To realize the structure design of steel truss, reasonable joints design and loading methods were adopted, and effects of horizontal forces on the structure were considered.

Keywords: steel truss; truss pedestal; horizontal force; loading method

作者简介：戴雅萍，硕士，教授级高级工程师，一级注册结构工程师，总工程师，Email:yaping.dai@siad-c.com。

参考文献

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［2］刘昶，邱剑，温四清，等. 贵阳北站31m跨钢桁架结构设计［J］.建筑结构，2012，42（9）：6-9.