ASYMMETRICAL OPEN TYPE INTEGRAL TENSION CABLE MEMBRANE STRUCTURE AND METHOD FOR CONSTRUCTION AND DESIGN THEREFOR

摘要

An asymmetrical open type integral tension cable membrane structure and method for construction and design therefor are provided. The dimensional integral tension cable membrane structure with a central opening is formed by three layers of radial cables including suspension cables (1), ridge cables (2) and valley cables (3), and ring cables, wherein the suspension cables (1) are positioned above the ridge cables (2), and the ridge cables (2) are positioned above the valley cables(3). One ends of the valley cables (3), ridge cables (2) and suspension cables (1) are connected to the ring cables (4) and the other ends are connected to a peripheral support structure (7), and coating membranes (5) are tensioned between adjacent ridge cables (2) and valley cables (3), with the adjacent ridge cables (2) and valley cables (3) as the framework for stretching the coating membranes (5). The construction of the structure comprises the steps of: lifting the suspension cables (1), ridge cables (2) and valley cables (3) step by step to the location adjacent to the corresponding anchor nodes for the cable body according to the formed shape of the tension cable membrane structure, stretching and anchoring the suspension cables (1), ridge cables (2) and valley cables (3) in place synchronously with a tension device to achieve the final shape of the integral tension cable membrane structure. The overall process load-based multi-stage design method for the open type integral tension structure is applied to the structure.