The construction method of lifting the truss beam by tower crane
A technology of tower cranes and construction methods, applied to cranes, etc., can solve problems such as unguaranteed safety and reliability, long construction period, waste, etc., and achieve the effect of novel design, low cost, and saving purchase costs
Active Publication Date: 2019-08-16
THE SECOND CONSTR ENG CO LTD CCSEB
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Problems solved by technology
[0002] In construction, many steel truss beams (traveling beams) and tennis racks have to be fabricated on the ground, and then the truss beams are hoisted to the design height. The existing construction method is to use core-through jacks. Multiple jack fulcrums are lifted little by little through steel strands. This construction method has a long construction period and cannot guarantee safety and reliability. It is necessary to pre-buried and set multiple jack fulcrums before the building structure is completed, and it is also necessary to purchase a complete set of hydraulic pressure. Equipment, these hydraulic equipment are useless after use, resulting in waste
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[0024] Such as Figure 1-Figure 5 As shown, the construction method utilizing a tower crane to lift a truss girder of the present invention comprises the following steps:
[0025] (1) Processing two sets of sky wheel beam components 1 and two sets of jacking tray components 2;
[0026] (2) The two ends of the installation position of the truss beam 3 at the construction site are respectively used as the setting points of the tower crane, and the foundation of the tower crane is set at the two setting points according to the height of the tower crane jacking up 300m, and the ground of the guide pulley is preset. Anchor pull ring and hoist ground anchor;
[0027] (3) Install the foundation section 4, the jacking frame 5, the slewing support assembly 6, the slewing tower body section 7, the introduction beam 8, the jacking tray assembly 2, and the jacking frame 5 in sequence according to the normal installation procedure of the tower crane , the slewing support assembly 6, the ...
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The invention provides a construction method for jacking a truss girder by utilizing a tower crane. The construction method comprises the following steps: (1) two sets of head sheave beam assemblies and two sets of jacking tray assemblies are machined; (2) tower crane foundations, guide pulley ground anchor pull rings and winch ground anchors are arranged; (3) foundation joints, jacking sleeve frames, rotary supporting assemblies, rotary tower body sections, introducing beams and the jacking tray assemblies are sequentially installed according to the normal installation program of the tower crane; (4) the head sheave beam assemblies are mounted on the rotary support assemblies; (5) two automobile cranes are used for hoisting the linear truss girder to the tops of the jacking tray assemblies; (6) jacking operation is carried out; and (7) the automobile cranes drop in sequence after jacking is in place. According to the construction method, the tower crane part structure and the specialjacking heightening performance of the tower crane are utilized, so that the purpose of jacking the truss girder is achieved; and by actual application test, compared with a steel strand jack jackingmethod, the method is faster, safer, more energy-saving and more environment-friendly.
Description
technical field [0001] The invention belongs to the technical field of building construction machinery and equipment, and in particular relates to a construction method for jacking up a truss beam by using a tower crane. Background technique [0002] In construction, many steel truss beams (traveling beams) and tennis racks have to be fabricated on the ground, and then the truss beams are hoisted to the design height. The existing construction method is to use core-through jacks. Multiple jack fulcrums are lifted little by little through steel strands. This construction method has a long construction period and cannot guarantee safety and reliability. It is necessary to pre-buried and set multiple jack fulcrums before the building structure is completed, and it is also necessary to purchase a complete set of hydraulic pressure. Equipment, these hydraulic equipment are useless after use, resulting in waste. Contents of the invention [0003] In order to solve the deficienc...
Claims
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IPC IPC(8): B66C23/28
CPCB66C23/28
Inventor 崔文才闫许锋范吉英高东宇
Owner THE SECOND CONSTR ENG CO LTD CCSEB