Methods for protecting membrane structures during the construction process of membrane structure engineering
The simplicity of tensioned membrane structure architecture makes it impossible to hide any design defects. The relaxation or discontinuity of tension will be fully exposed, and it will cause wrinkles and deformation of the membrane surface, reducing the service life of the structure. Below, the editor will briefly introduce the methods of protecting membrane structures during the construction process of membrane structure engineering:
1、 The method of segmented lifting can be used to divide the membrane body into several operational blocks according to its planar position. Each membrane body is also lifted in place using multi-point integral lifting technology. If the overall improvement technology is adopted, a large amount of equipment and personnel are required to be invested, and the construction preparation period is relatively long. The entire membrane body is divided into 5 work blocks using the block lifting method, with the first and second, third and fourth, fifth and sixth, seventh and eighth, ninth and tenth pieces. The 7 lifting points of each work block membrane body are lifted simultaneously. After all the membrane bodies have reached the design height, the superiority of connecting the various work blocks together in the air is quite obvious. During the entire installation process, special attention should be paid to preventing excessive shaking of the membrane under wind load.
2、 Before unfolding the membrane, lay temporary fabric on the platform to protect the membrane material from damage and clean it, and unfold the membrane strictly in the determined order. Before opening the packaging, the markings on the packaging should be checked to confirm the installation location, and the film should be unfolded in the direction of the markings to avoid any movement of the unfolded film in the field. When walking on the unfolded membrane surface, wear soft soled shoes and do not wear hard objects to prevent the membrane body from being scratched.
3、 After unfolding the membrane on the platform, use a clamp to connect and fix the membrane material to the cable. The specifications of the plywood and the spacing between the plywood should be strictly installed according to the design requirements. For the membrane body lifted in place at once, the clamp bolts and nuts must also be tightened in place at once.
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