Bearer for gliding reticulated shell

Abstract

The invention discloses a bearer for gliding a reticulated shell. The bearer has a lateral bearer (4) and a vertical bearer (10) which are adjacently arranged to support a bearer ball (7) together. The bearer ball is connected to a reticulated shell web member (5) and a reticulated shell chord member (6). The bearer includes a pre-embedded bearer bearing surface roof plate and a transition plate. The bearer is characterized in: the pre-embedded bearer bearing surface roof plate is a normal pre-embedded steel plate. The steel plate is welded to an anchor rib of which the diameter, the position, and the length are determined based on calculation and meet configuration requirements. The transition plate (11) includes a vertical transition plate and a lateral transition plate. The thickness and size of the transition plate are the same as those of a bearer base plate or are determined based on calculation. The transition plate is perforated at a place corresponding to an eyelet of the supporting base plate. A bearer bolt is inserted to the perforated place of the transition plate and is fastened through plug welding to the perforated place of the transition plate, and the welding seam is ground and flattened. The bearer of the invention has the advantages of reducing height of gliding and unloading, reducing difficulty in gliding and unloading and implementation fees, shortening construction time, and guaranteeing construction safety and quality.

Description

technical field [0001] The invention relates to a bearing constructed by a sliding method in construction engineering, in particular to a bearing used for the sliding of reticulated shells. Background technique [0002] For the installation of large-scale space steel structures and other forms of steel structures, in some projects due to site restrictions or construction progress requirements, a large number of construction methods are used to install at one end and slip (single, cumulative slip) in place. This sliding method can be operated in parallel with other civil engineering projects, so that the total construction period is shortened, especially when the site is narrow or crosses other structures, equipment, etc. and the crane cannot enter. In the large-scale construction projects such as large-scale venues and workshops, such as civil engineering, decoration and equipment installation, it can better exert its economic effect. [0003] How to design the appropriate ...

AI Technical Summary

Problems solved by technology

Compared with the two standards "Code for Construction Quality Acceptance of Steel Structure Engineering", the installation accuracy of the support base plate is much higher than that of "Code for Construction Quality Acceptance of Concrete Structure Engineering". It is difficult to meet such high precision requirements for civil construction

[0010] 4. Embedded bolts, the vertical support position is 250mm higher than the foundation surface, and the height of the sliding track must be increased when sliding construction is adopted, so that the entire structure (including the support) is higher than the position of the embedded bolts. The stroke of unloading is increased, and the whole structure needs to be raised after the slide is in place to install the rubber backing plate (or steel backing plate); that is, the cost of construction is increased, and the safety risk is increased

[0011] 5. The pre-embedded bolts also protrude 250mm from the foundation surface at the position of the lateral support. Since the reticulated shell structure has a large horizontal thrust, lateral supports must be installed to balance the net during installation, sliding and normal use. The horizontal thrust of the shell, and the existence of lateral embedded bolts will bring certain difficulties to installation and sliding, especially the sliding process

[0012] 6. Since it is difficult to guarantee the accuracy requirements of the pre-embedded plate and pre-embedded bolts in the civil construction, it often causes on-site reaming of the support bottom plate and connection of the plate during the installation of the steel structure, which not only affects the construction but also affects the structural strength, leaving behind Safety and quality hidden dangers

[0013] Therefore, there are above-mentioned inconveniences and problems in the known support structure forms for the sliding of reticulated shells.

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