Inflating and stretching integral film

Abstract

The invention relates to an inflating stretching integral film, which is formed by connecting a plurality of inflating film integral stretching beams with each other adopting a parallel, fan shaped or circular disposition manner, through ridge vale shaped negative gauss curved surface tensile force films, wherein the inflating film integral stretching beam is composed of a gas bearing elastic plate, a spindle shaped inflating film and a spiral stretching cable, the gas bearing elastic plate is fixed on the spindle shaped inflating film through the spiral stretching cable, and the inflating film is filled with overpressure air, thereby providing the stiffness of the film integral stretching beam and maintaining the shape. The ridge vale shaped negative gauss curved surface tensile force film is the main surrounding body of the integral film, a vale cable is pressed in the center of the ridge vale shaped negative gauss curved surface tensile force film, the both ends of the vale cable are anchored to the lower part building after exerting a tensile force, which is as the steady cable of the integral film; the both side of the ridge vale shaped negative gauss curved surface tensile force film are provided film fixed rims, so as to connect the fixed rims or free edges of buildings. The fixed hinged contact points at both side of the gas bearing elastic plate are anchored with the support column of buildings. The inflating film integral stretching beam forms an inflating stretching integral film with various shapes such as tetragon, circular or fan shape, etc. according to different disposition manners.

Description

technical field [0001] The invention relates to an inflatable stretched integral membrane, which can be directly applied to the roof of large-span buildings, such as conferences, multi-functional halls, gymnasiums and the like. It belongs to the technical field of building structures. Background technique [0002] The membrane structure began in 1952, and its typical forms are skeleton membrane, tensioned membrane, air-bearing membrane, airbag membrane, and tensioned integral membrane. Among them, the skeleton membrane is supported by a complex topological space grid structure, the tensioned membrane is supported by scattered masts and arches and stretched and stabilized by cables, and the air-bearing membrane is inflated to generate a pressure difference inside and outside the building space to support the building membrane. , the airbag membrane is inflated to generate a pressure difference between the inside and outside of the airbag to maintain the rigidity of the airbag...

AI Technical Summary

Problems solved by technology

Among them, the air-bearing membrane building activity space has a certain high pressure effect, and the safety of wind resistance and snow resistance is poor; the airbag membrane has a small spanning force, and is mostly used in small buildings and grid unit buildings

"Manufacture error and its effects on the initial pre-stress of the Geiger cable dome" (International Journal of Space Structures, 2006, 21(3): 141-147.) by Zhang Li-mei and Chen Wu-jun "The initial pre-stress found procedure and structural performance researches for Levy cable dome based on the linear adjustment theory" by Geiger Cable Dome and Zhang Li-mei, Chen Wu-jun (Journal of ZhejiangUniversity SCIENCE A, 2007, 8(9) : 1366-1372.) The Levy-type cable domes adopted are all tensioned monolithic membranes. These tensioned monolithic membranes are rarely used in engineering due to the technical difficulty of tension introduction and control, and low structural rigidity.

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