（1 奥雅纳工程顾问， 广州 510620； 2 奥雅纳工程顾问， 深圳 518048）

［摘要］贵阳某商业建筑为复杂超长和抗震超限结构，大跨楼盖和大悬挑结构多，平面尺寸达到281m×290m。详细研究项目中的设计难点，紧抓控制质量和保证施工进度的关系，精进分析技术，提出具体而有效的应对措施以保证结构的安全性和经济性，解决了设计进度和设计质量的矛盾。详细介绍项目设计过程中遇到的结构设计难题和应对措施。针对超长结构，宜合理考虑桩侧刚度以减小基础对结构的约束；桩基施工过程中结构柱位调整较大时，基础选型宜充分考虑施工现状，尽量利用好已完工的基桩，从而缩短工期，降低工程造价；对于大跨楼盖结构，应尽量增加结构的冗余度，宜避免采用悬挑大梁作为主要承重构件。

［关键词］超长结构； 温度应力； 桩筏基础； 斜柱框架； 大跨楼盖

中图分类号：TU973文献标识码：A文章编号：1002-848X(2017)14-0013-06

Structural design of a complicated super-long commercial building in Guiyang

Hou Shengli1, Sun Dongju1, Wang Xiaohan1, Li Peng1, Feng Wenqi2, Gu Jinqiang1

(1 Arup， Guangzhou 510620， China; 2 Arup， Shenzhen 518048， China)

Abstract:A commercial building in Guiyang, with plane dimension of 281m×290m, is a complicated super-long structure with large-span floors and large-cantilever. The design difficulties in the project were researched in detail; the relationship between quality control and construction progress guarantee was focused on; the technology was analyzed sophisticatedly; concrete and effective countermeasures were put forward to ensure the structural safety and economic performance; and the contradiction between the design progress and design quality was solved. The structural design problems, the countermeasures and the specific issues encountered in the design process were introduced in detail. Related to super-long structures, the consideration of pile lateral stiffness was recommended to lower the structural thermal effect. During the pile construction stage, when the adjustment of structural columns happened, the design of foundation should take account of construction conditions and improve the utilization of built piles in order to shorten the period and reduce the cost. For large-span floors, enhancement of structural redundancy and avoiding making the cantilever beam as the main supporting structure should be introduced.

Keywords:super-long structure; temperature stress; piled raft foundation; frame with inclined columns; large-span floor

作者简介：侯胜利，硕士，副总工程师，一级注册结构工程师，Email：sheng-li.hou@arup.com。