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prestressed cable structures
相关语句
  预应力索结构
     NUMERICAL MODELS FOR CABLE ELEMENT IN PRESTRESSED CABLE STRUCTURES
     预应力索结构中的索单元数值模型
短句来源
     Catenary cable element method for prestressed cable structures
     预应力索结构中的悬链线索单元法
短句来源
     Displacement Control of Prestressed Cable Structures
     预应力索结构位移控制
短句来源
     The method of displacement control of prestressed cable structures is proposed in this paper on the basis of the fundamental theorem of the member system by optimal algorithm.
     基于索杆体系矩阵分析的基本理论,借助优化方法,提出了预应力索结构的位移控制方法.
短句来源
  相似匹配句对
     Problems of Prestressed Anchor Cable
     预应力锚杆(锚索)设计施工中的问题
短句来源
     Shape Finding of Prestressed Cable Roofs
     预应力索屋盖结构的形状确定
短句来源
     Displacement Control of Prestressed Cable Structures
     预应力索结构位移控制
短句来源
     Shape optimization design of prestressed cable-truss structures
     预应力索-桁架结构形状优化设计
短句来源
     Catenary cable element method for prestressed cable structures
     预应力索结构中的悬链线索单元法
短句来源
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This paper derives an equilibium equation of a prestressed cable structure by FEM and analyzes the relationship among prestress, nonlinear geometrical deformation and stiffness of the cable structure.

用有限元的方法推导出预应力索结构的平衡方程 ,分析了索结构中预应力与刚度 ,几何非线性和刚度之间的关系。

The method of displacement control of prestressed cable structures is proposed in this paper on the basis of the fundamental theorem of the member system by optimal algorithm.By altering the length of some structural members while keeping the prestress level above a given lower bound without relaxation,the nodal displacements of prestressed cable structure are controlled. This method can be applied to the shape control of precision structures.

基于索杆体系矩阵分析的基本理论,借助优化方法,提出了预应力索结构的位移控制方法.在保证预应力索结构各索段一定的预应力水平且不致松弛的情况下,通过改变结构中某些索段的长度,来达到控制节点位移的目的.此方法可应用于精密结构的形状控制.

An official building is a five floors RC frame structure.Because of the change in architecture functions,a new floor will be added.The added structure is prestressed cable structure.The prestressed cable structure is accounted briefly first,then its different construction periods are simulated by the FEM software.The structural deformation and stress due to different load cases are calculated,so the initial cable stress can be determined.To study this type of structure,one...

An official building is a five floors RC frame structure.Because of the change in architecture functions,a new floor will be added.The added structure is prestressed cable structure.The prestressed cable structure is accounted briefly first,then its different construction periods are simulated by the FEM software.The structural deformation and stress due to different load cases are calculated,so the initial cable stress can be determined.To study this type of structure,one prestressed cable structure is tested for the construction period.Finally,the construction technology of prestressed cable structure is accounted,including the cable prestressing technology,stress monitoring technology.And also the specific equipment for prestressing technology may be a reference for other similar projects.

海关总署西配楼为5层混凝土框架结构,因建筑功能改变,需在原结构顶部新增一层。新增拱形屋顶结构形式为预应力索拱结构。首先简要介绍了预应力索拱结构,然后使用施工仿真计算方法对结构不同施工阶段进行模拟,对不同荷载工况下结构变形及应力进行了分析,校核了钢结构及预应力钢索选型,确定了施工时预应力钢索初始预拉应力。为对该结构形式进一步研究,选取了一榀预应力索拱结构进行了1∶1模型试验,模拟预应力钢索张拉过程。另外,介绍了预应力索拱结构的施工技术,包括钢索张拉技术、应力监控技术等,并提供了部分张拉转换件做法,可供类似工程参考。

 
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