Rigid boundary film material tensioning and pre-tightening device and operation method thereof

Abstract

The invention discloses a rigid boundary film material tensioning and pre-tightening device and an operation method thereof. The rigid boundary film material tensioning and pre-tightening device comprises a polygon film material which is arranged in a polygon rigid frame, connection components, rigid boundary plates, multiple telescopic devices and tension sensors; the polygon film material comprises a film material body and multiple connection parts which are formed on the periphery of the film material body; the multiple connection parts are arranged corresponding to the polygon rigid frame,and besides, every two symmetrical connection parts of the multiple connection parts form a group; the connection components are in one-to-one correspondence with the connection parts; one end of each connection component is connected to the corresponding connection part, and the other end is connected to one frame edge of the polygon rigid frame; the rigid boundary plates are clamped at connection parts between the film material body and the multiple connection parts, and separating and connecting between the film material body and the multiple connection parts are realized through first fastening components; the multiple telescopic devices correspond to the groups of connection parts in number, each telescopic device is arranged to be connected to one corresponding connection component,and is used for tensioning the polygon film material; and the tension sensors are connected onto the connection components and are used for monitoring pre-tightening force of the polygon film material in real time.

Description

technical field [0001] The invention relates to the technical field of membrane structures, in particular to a tensioning and pretensioning device for a rigid boundary membrane material and an operating method thereof. Background technique [0002] With the development of buildings in the direction of large-span space, the traditional building structure system can no longer meet the actual needs. As an emerging long-span space structure, membrane structure has been widely researched and applied due to its advantages of excellent spanning ability, light weight and rich architectural expression. However, because the membrane structure itself is flexible, tension needs to be applied to provide the overall stiffness of the structure, and boundary constraints often affect its performance. At the same time, the vibration performance and durability of the membrane surface under wind load or impact load are often ignored. Therefore, in order to solve the boundary constraints of act...

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Problems solved by technology

[0005] The purpose of the present invention is to solve one of the problems existing in the above-mentioned prior art. One purpose of the present invention is to provide a rigid boundary membrane material tensioning pretensioning device, which can effectively establish the rigid boundary constraint conditions of the membrane material and overcome part of the membrane structure. The problem of insufficient flexible boundary constraints improves the test accuracy and test safety performance. At the same time, the membrane rigid boundary wedge-shaped clip-type anchorage has a simple structure, easy operation, and good working stability; it overcomes the problem that the surface tension of the conventional membrane structure is not easy to determine , to ensure that the pre-tightening force is applied evenly and at the same time, the value of the pre-tightening force of the membrane can be accurately measured, the test operation efficiency is high and the experimental effect is better

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