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The last steel truss of this Science Hall project, which is 22 meters long and weighs 48 tons, was accurately positioned and docked, marking the successful completion of the structural topping of the overall steel structure of the project.
When it comes to mesh and shell structure, first of all, let's look at the definition. “Netshell structure is a space structure system formed by arranging the rods along a certain curved surface in a regular manner, and its force characteristics are similar to those of thin-shell structure, with the role of “thin film” as the main force characteristics, i.e., most of the load is borne by the axial force of the net-shell rods”.
We all know that the anti-corrosion performance of roofing materials directly affects the waterproof, aesthetic and durable functions of the roof, especially the anti-corrosion performance of roofing panels, which is also related to the service life of the roof.
The conductor should make the command signals and orders clear and unambiguous. He or she should stand in a place where the whole process of lifting can be seen, and also can be seen by all construction workers at the same time. If there is a post can not see the conductor, should be added to the signal transfer assistant to transfer the command signal.
Rods and bolts and balls and other materials into the field, must check the quality of materials and factory certificate of conformity, and according to the requirements of the design drawings for the appearance of the quality, type specifications, signs and marking and transportation damage scratches and other serious acceptance.
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