论文部分内容阅读
济南奥体中心体育场馆为2009年第11届全国运动会的主赛场。该文主要介绍济南奥林匹克体育中心场馆钢结构设计特色及结构健康监测的主要做法和监测效果。该体育中心包括一场三馆:即体育场、体育馆、游泳馆和网球中心,除体育馆采用弦支网壳结构外,其余基本为空间折板钢管桁架结构。工程实践表明:对大跨空间结构设计进行总装分析至关重要,分析时节点计算模型的简化,必要时应进行铰接刚接双控分析;对复杂空间结构的节点尚应对其进行有限元模拟分析。对于弦支网壳结构而言,最关键的是预应力体系的建立以及预应力大小的选择,该工程采用平衡矩阵理论得到的预应力值,实践证明是可行的和有效的。该工程利用光纤光栅传感器进行结构健康监测取得了较好的效果,具有较高的准确度和较好的稳定性,可以推广应用于其他类似结构的健康监测当中。
Jinan Olympic Sports Center Stadium for the 11th National Games in 2009 the main stadium. This article mainly introduces the main practices and monitoring results of steel structure design features and structure health monitoring of Jinan Olympic Sports Center venues. The sports center consists of a third hall: the stadium, the gymnasium, the swimming pool and the tennis center. Apart from the chord shell structure used in the gymnasium, the rest is basically a space-folded steel tube truss structure. The engineering practice shows that it is very important to analyze the assembly of the large-span space structure design. The analysis of the node model is simplified. If necessary, the hinge-joint double-control analysis should be carried out. The nodes of the complex space structure should be analyzed by finite element method . For the chordal shell structure, the most important is the establishment of the prestressing system and the selection of the prestressing size. The project uses the prestressing value obtained from the equilibrium matrix theory. Practice has proved to be feasible and effective. The project uses fiber grating sensors for structural health monitoring has achieved good results, with high accuracy and good stability, which can be widely applied to other similar health monitoring structure.