Dapeng Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province, China
Space rack structure as a complex high super-static structure, out of the problem is extremely difficult to reinforce, resulting in many accidents in engineering practice, in order to ensure the quality of space rack structure project, reduce the construction risk factor, what are the space structure construction technology?
Scope of application: applicable to bolted mesh frame, areas where overweight transport is more difficult; applicable to small assembling unit lifted to the design position by crane for assembling method.
Process characteristics:
① net frame structure on the pre-embedded components of the pre-embedded construction quality requirements, structural components, nodes, in the high altitude assembly construction is difficult;
② do not need to set up scaffolding or only set up a simple mobile scaffolding, the mechanical requirements are not high, can save engineering costs;
③ The construction speed is relatively fast;
④ technical difficulties, safety protection is difficult.
Scope of application: applicable to the installation of small and medium-sized net frame.
Process characteristics:
① Most of the welding and assembling work is carried out on the ground, which is conducive to improving the quality of the project and can save most of the assembling bracket;
② slitting or block size should be based on local lifting equipment, in favour of reducing costs.
Scope of application:
① building plane for rectangular, trapezoidal or polygonal planes, the support can be a simple peripheral support or point support and peripheral support combined and so on;
② site narrow, mountainous and other areas of construction;
③ across the construction; such as workshop roof replacement, rolling, machinery and other equipment in the plant foundation, equipment and roof structure parallel construction.
Process characteristics:
① there is no impact on the internal construction of the building, net frame installation and the lower part of the civil construction can be flat three-dimensional operation, greatly accelerating the construction period;
② construction is convenient. The lifting equipment, traction equipment requirements are not high, available small cranes or winches, or even without; and only need to set up a local assembly bracket, such as the end of the building has a platform can be used to set up scaffolding.
Scope of application: applicable to various types of net frame structure. Process characteristics:
① construction speed, assembling quality is guaranteed;
② does not require any turnover material, cost savings;
③ personnel construction is convenient, safe operation;
④ Construction is restricted by the site, and the weight of the net frame can not be too heavy;
⑤ When lifting, it can be transferred or rotated into position at high altitude.
Scope of application: Installation of heavy roofing system peripheral support or point support net frame of large-span net frame. Process characteristics:
① the use of lifting equipment is generally small, the use of small groups of machines to install large network frame;
② lifting stage of the net frame support situation remains unchanged, in addition to the use of special brackets, other lifting methods are using structural columns, lifting stage of the net frame support situation is the same as the use of the stage;
③ Due to the large capacity of the lifting equipment, install the roof structure as much as possible before lifting, so as to reduce the overhead work and lower the cost;
(iv) The overall lifting method can only rise vertically at the designed coordinates, if the net frame needs to be moved or rotated, slip measures should be taken separately, and the overall lifting method is suitable for construction when the construction site is narrow.
