(1 贵阳金阳建设投资有限公司，贵阳 550020；2 贵州大学，贵阳 550003)

［摘要］对一个超限大悬挑正高斯曲率平面管桁架斜交预应力空间网格结构进行了理论分析和试验验证，内容主要集中在静力方面。试验测试结果与有限元法理论分析结果符合较好，说明理论分析采用的有限元方法的可行性和准确性，也进一步证实了理论分析中所得出的预应力的正、负效应。通过模型试验，对这种新型预应力空间结构的力学性能有了更深入的认识。

［关键词］高斯曲率；模型试验；预应力空间网格结构；位移响应；内力响应

Experimental research of super-span cantilever truss flat tube gaussian curvature oblique prestressed space grid structure

Zhou Shunhao1, Wu Jun1, Xiao Jianchun2, Ma Kejian2

(1 Guiyang Jinyang Construction Investment Co., Ltd., Guiyang 550020, China;

2 Guizhou University, Guiyang 550003, China)

Abstract:Experimental research and analysis of super-span cantilever truss flat tube gaussian curvature oblique prestressed space grid structure were conducted. The content is fasten on static analysis. The model experiment results show that the fitness of experimental data and finite element method analysis is good, and this shows the FEM is feasible and reliable. Furthermore the prestressing force produced positive and negative effects are also verified. The model experiment makes us understand the mechanics of the new spatial structures more deeply.

Keywords:gaussian curvature; model test; prestressed space grid structure; displacement response; force response

贵州省科技厅工业攻关项目(［2010］3002)，贵阳市科技局工业攻关项目［2010］。

作者简介：周顺豪，本科，高级工程师，Email:z.sh6666@163.com。

参考文献

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［2］马克俭，张华刚，郑涛.新型建筑空间网格结构理论与实践［M］.北京：人民交通出版社，2006.

［3］马克俭，李小红，韦明辉，等.预应力网格结构体系的研究和应用前景［J］.空间结构，1994，1(2)：1-10.