Assembly type jig frame for longspan pipe truss roof girder
A technology of roof beams and pipe trusses, which is applied in the processing of building materials, construction, building construction, etc., can solve the problems of high safety risks and difficult control of the space size of pipe truss roof beams, so as to reduce safety risks and ensure dimensional accuracy , The effect of saving mechanical costs
Inactive Publication Date: 2015-03-25
河北二十冶建设有限公司
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Problems solved by technology
This installation method makes it difficult to control the space size of the pipe truss roof beam, and the safety risk during installation is relatively large
Method used
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[0015] Such as figure 1 As shown, the pipe truss roof beam is a three-dimensional truss structure with an inverted triangular cross-section, consisting of a lower chord (rod), two upper chords (rods) of the same height, and several webs connected between the upper and lower chords . The tire assembly frame of the present invention is specially designed as the ground arching support frame when the pipe truss roof girders are assembled.
[0016] The bottom of the group tire frame of the present invention is the steel floor 1 as the support foundation, and the support pier 2 is welded on the steel floor 1, and the height of the support pier 2 is the same as that of the pipe truss roof beam at the arched support position of the tire frame. The arching height is the same, and the width of the pier 2 is consistent with the maximum width of the section of the pipe truss roof beam at the arching support position of the tire frame. Columns 3 are respectively welded on the steel floor...
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The invention relates to an assembly type jig frame for a longspan pipe truss roof girder. According to the structure, a support pillar is welded on a steel floor; upright posts are respectively welded on the steel floor which is positioned on two sides of the support pillar; inclined struts are respectively arranged on the outer sides of two upright posts; a lower chord positioning baffle plate is welded on the top surface of the support pillar; and upper chord positioning baffle plates are welded on the inner sides of the upright posts. By the assembly type jig frame, the overall assembly of the pipe truss roof girder is carried out on the spot ground, the pipe truss roof girder is hoisted and mounted by using a vertical type normal assembly method, so that the overall geometric dimensionings (including length, chord length, chord height, straightness, perpendicularity and the like) of pipe truss components are controlled; and because of the assembly on the ground, the working efficiency is greatly improved, the expenses of large-scale machines are saved, and the safety risks during the hoisting are also reduced relative to other mounting methods.
Description
technical field [0001] The invention relates to a supporting tool for assembling a pipe truss roof girder, in particular to a tire frame for assembling a large-span pipe truss roof beam. Background technique [0002] The tube truss roof beam with an inverted triangular cross-section is an arched three-dimensional truss structure, with two horizontal spans, a span of more than 100 meters, and an installation height of 30 to 40 meters. During installation, the two ends of the roof beam are welded and supported on the steel column bracket with triangular section; the middle span is supported on the top of the concrete support column. Due to the large span, heavy weight and special structural form of the single product of the pipe truss roof beam, it is generally manufactured in sections in the factory, and then transported to the site for assembly at high altitude. This installation method makes it difficult to control the space size of the pipe truss roof beam, and the safety...
Claims
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IPC IPC(8): E04G21/16
Inventor 姜丹张宝建
Owner 河北二十冶建设有限公司