Large-span hangar fringe truss prestressed structure system and construction method thereof

A technology of prestressed structure and construction method, which is applied to building components, building structures, roofs, etc., and can solve the problems of reducing the effective bearing external load of the supporting columns of the gate truss, difficulties in making non-circular cross-sections of the gate truss, and low material utilization. , to achieve the effect of improving the ability to resist external loads, reducing restraint internal forces, and increasing vertical support stiffness

Active Publication Date: 2016-12-07
CHINA AVIATION INT CONSTR & INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a large-span hangar side truss prestressed structural system and its construction method, to solve the existing gate truss existing difficulties in making non-circular sections, low material utilization, unsatisfactory price ratio and reduce the gate truss support The technical problem of the ability of the column to effectively carry the external load

Method used

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  • Large-span hangar fringe truss prestressed structure system and construction method thereof
  • Large-span hangar fringe truss prestressed structure system and construction method thereof
  • Large-span hangar fringe truss prestressed structure system and construction method thereof

Examples

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Effect test

Embodiment 1

[0052] Embodiment one sees figure 2 As shown, the roof steel structure 2 is designed as a grid structure. This large-span hangar side truss prestressed structure system includes roof support columns 1 arranged at intervals along the three sides of the hangar, fixed on the top of the roof support column 1 The flat-plate grid structure, the gate truss support columns 3 which are located at the side of the open side of the roof support column 1 and arranged at intervals along the depth direction of the hangar, and the gate truss 4 fixed on the top of the gate truss support column 3, the gate The truss 4 is an irregular section space truss, the number of the upper chords of the gate truss 4 is more than the number of the lower chords, and the gate truss 4 includes the outermost truss 7 of the grid structure, that is, the outermost truss 7 is used as the gate truss One of the trusses is stressed, and the lower chord of the gate truss is provided with internal prestressed steel str...

Embodiment 2

[0055] Embodiment two see image 3 As shown, the difference from Embodiment 1 is that the elevation of the gate truss 4 is higher than that of the roof grid, and the connecting truss includes the outermost truss 7 of the roof grid and the outermost truss 7 of the roof grid. The pressure shunt upper chord 8 added on the upper side of the outermost truss upper chord 7.1, the pressure shunt upper chord 8 is equal to the elevation of the prestressed double-layer truss upper chord 5.1 of the prestressed double-layer truss, and the pressure shunt upper chord The bar 8 is connected with the uppermost chord 7.1 of the outermost truss through the vertical web 9 , and the pressure shunt upper chord 8 is connected with the upper chord 5.1 of the prestressed double-layer truss through the horizontal web 10 .

[0056] see Figure 4-6 As shown, the width of the hangar is s, the depth of the roof grid is D1, and the height is H2, and the depth of the gate truss 4 is D2, and the height is H1...

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Abstract

The invention discloses a large-span hangar fringe truss prestressed structure system and a construction method of the large-span hangar fringe truss prestressed structure system. The structure system comprises roof supporting columns, a roof steel structure, gate truss supporting columns and a gate truss, wherein the roof supporting columns are arranged along the three edges of a hangar at intervals, the roof steel structure is fixed to the tops of the roof supporting columns and is in a flat plate shape, the gate truss supporting columns are located on the sides of the opening edges of the root supporting columns and arranged in the depth direction of the hangar at intervals, and the gate truss is fixed to the tops of the gate truss supporting columns. The root steel structure is directly connected with the gate truss. A body interior prestressed steel strand cable is arranged in a lower chord of the gate truss and completes pretension through an anchoring end joint and a tension end joint at the two ends of the lower chord correspondingly. The two ends of the lower chord and adhesive sections on the outer sides of the two ends of the prestressed steel strand cable are filled with concrete. By the adoption of the body interior prestressed technology, a ball or pipe truss can be adopted to successfully span a single-span hangar with the span larger than 140 m, and the technical and economical index of the structure is greatly improved.

Description

technical field [0001] The invention relates to a prestressed structural system of a steel truss and a construction method thereof, in particular to a prestressed system of a side truss of a large-span hangar and a construction method thereof. Background technique [0002] The span of the existing large wide-body double-station maintenance hangar is generally 140m-160m, the depth is generally 80m-100m, and the height is generally 24.5m-29.5m depending on the roof suspension equipment. The gates of the hangar generally face the taxiway or the apron, and the auxiliary rooms can be arranged around the other three sides of the hangar according to the flow of people and logistics. The span of the double-span hangar is more than 120m, and the hangar roof is supported on three sides and one side is open, so the design of the long-span hangar roof has always been the focus and difficulty of hangar design. [0003] In previous designs, the roof of a long-span hangar generally adopts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/342E04B1/19E04B7/02
CPCE04B1/19E04B1/1906E04B1/342E04B7/022E04B2001/199E04B2001/1996
Inventor 赵伯友周方杰韦恒
Owner CHINA AVIATION INT CONSTR & INVESTMENT CO LTD
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