中文摘要：

新疆中石油生产指挥中心单层平面索网幕墙结构尺度大且为复杂弱边界，并长年处于强风环境下。该文对单层索网的结构模型、找形、索力设计、动力响应分析、玻璃翘曲、预应力张拉控制等设计中的关键技术进行详细研究。研究表明，结构整体模型应考虑索网和复杂弱边界（支承刚架）共同工作和竖索与横索在不同阶段的工作特性。确定单层平面索网幕墙零状态的非线性有限元逆迭代找形方法明显提高迭代收敛的速度，有效地解决横索悬垂问题。通过找形分析和预张力设计，可得到合理的索网初始形态和最经济的索截面。选用平均风压作用位置作为初始位置，对索网进行脉动风作用下的非线性时程分析，风振分析结果表明单层索网幕墙为风敏感结构。大变形下单层索网幕墙边界处玻璃翘曲问题不容忽视，需设计专门方案来控制。根据预应力张拉各阶段的有限元模拟和优化分析得出的预应力张拉控制要求，可有效指导单索幕墙的施工。

英文摘要：

The curtain wall supporting structure of the Petro China Xinjiang Command Center is a large-scale single-layer plane cable net with flexible boundaries, which is in strong wind environment throughout the year. The key problems in design, such as the choce of trueture model, form finding, cable tension design, dynamic response analysis, warping of glass and prestress stretching control of the single-layer plane cable net were studied. The results indicate that the interactive property between cable net and complex weak boundaries, the working characteristics of vertical cables and lateral cables during different stages should be considered in the model. The nonlinear finite element inverse iteration form-finding method of to determine the zero-state of single-layer plane cable net curtain wall substantially improves the iteration convergence effieney and effectively solves the draping problem of lateral cables. Reasonable initial form of the cable net and the most economical cable cross-section could be obtained by the form-finding design and pretension group optimization. The acting position of the mean wind pressure is selected as the initial position. Then, a series of nonlinear time-history analysis under fluctuating wind is conducted. The wind-induced vibration analysis results show that the single-layer cable net curtain wall i~ sensitive to the wind. Glass warping near the boundary of the single-layer cable net with large deformation cannot be igflored and special analysis should be conducted to control the warping stress. The pre- stress controlling requirements basing on the finite element simulation results of pre-stress tension in various stages and optimization analysis can be effectively used to guide the construction of single-layer cable net curtain wall.