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A Simply Supported Truss Structure to Prevent Lateral Instability

A simply supported truss and lateral instability technology, which is applied to truss structures, truss beams, joists, etc., can solve problems such as out-of-plane instability of simply supported trusses and out-of-plane stability of planar steel pipe trusses, and avoid overall failure. Stability, prevent out-of-plane deformation, and ensure the effect of force safety

Active Publication Date: 2022-04-22
EAST CHINA ARCHITECTURAL DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a simply supported truss structure that prevents lateral instability, and solves the out-of-plane stability problem of the planar steel pipe truss. Stabilizing device to solve the problem of out-of-plane instability of simply supported trusses

Method used

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  • A Simply Supported Truss Structure to Prevent Lateral Instability
  • A Simply Supported Truss Structure to Prevent Lateral Instability
  • A Simply Supported Truss Structure to Prevent Lateral Instability

Examples

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Effect test

Embodiment 1

[0028] A simply supported truss structure for preventing lateral instability, including a truss 1, a truss support 2 and a supporting body 3, wherein the truss 1 includes an upper chord 11 and a lower chord 12 arranged in parallel, and the upper chord 11 and the lower chord 12 The two ends of the upper chord 11 are respectively hinged on the two truss supports 2, and the two truss supports 2 are respectively fixed on the tops of the two supporting bodies 3; it also includes an anti-instability device, the lower chord The two ends of 12 are respectively connected with an anti-instability device, which is connected with the adjacent supporting body 3 through the anti-instability device;

[0029] The anti-instability device includes a spring 4 and a connector, wherein one end of the spring 4 is provided with a spring first ear plate 41, and the spring first ear plate 41 is hinged with the main body ear plate 31 provided on the adjacent supporting body 3 through a pin shaft; The o...

Embodiment 2

[0034] A simply supported truss 1 structure for preventing lateral instability, comprising a truss 1, a truss support 2 and a supporting body 3, wherein the truss 1 includes an upper chord 11 and a lower chord 12 arranged in parallel, and the upper chord 11 and the lower chord 12 The two ends of the upper chord 11 are respectively hinged on the two truss supports 2, and the two truss supports 2 are respectively fixed on the tops of the two supporting bodies 3; the anti-instability device is also included, and the lower chord The two ends of the rod 12 are respectively connected with an anti-destabilization device, which is connected with the adjacent supporting body 3 through the anti-destabilization device;

[0035] The anti-instability device includes a spring 4 and a connector, wherein one end of the spring 4 is provided with a spring first ear plate 41, and the spring first ear plate 41 is hinged with the main body ear plate 31 provided on the adjacent supporting body 3 thr...

Embodiment 3

[0040]A simply supported truss 1 structure for preventing lateral instability, comprising a truss 1, a truss support 2 and a supporting body 3, wherein the truss 1 includes an upper chord 11 and a lower chord 12 arranged in parallel, and the upper chord 11 and the lower chord 12 The two ends of the upper chord 11 are respectively hinged on the two truss supports 2, and the two truss supports 2 are respectively fixed on the tops of the two supporting bodies 3; the anti-instability device is also included, and the lower chord The two ends of the rod 12 are respectively connected with an anti-destabilization device, which is connected with the adjacent supporting body 3 through the anti-destabilization device;

[0041] The anti-instability device includes a spring 4 and a connector, wherein one end of the spring 4 is provided with a spring first ear plate 41, and the spring first ear plate 41 is hinged with the main body ear plate 31 provided on the adjacent supporting body 3 thro...

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Abstract

The invention discloses a simply supported truss structure for preventing lateral instability. The upper chord and the lower chord of the truss are connected through a web; the two ends of the upper chord are respectively hinged on two truss supports, and the two truss supports The seats are respectively fixed on the tops of the two supporting bodies; the two ends of the lower chord are respectively connected with anti-instability devices, which are connected with the adjacent supporting bodies through the anti-instability devices; the anti-instability devices include springs and connectors, and the springs One end is provided with the first ear plate of the spring, and the first ear plate of the spring is hinged with the main body ear plate provided on the adjacent supporting body through the pin shaft; the other end of the spring is connected with one end of the connecting piece, and the other end of the connecting piece is provided with the first connecting piece Ear plate, the first ear plate of the connector is hinged with the lower chord ear plate provided at the end of the lower chord through a pin. The invention solves the out-of-plane stability problem of the plane steel pipe truss, and solves the out-of-plane instability problem of the simply supported truss by setting an anti-instability device with a spring between the lower chord of the truss and the supporting body.

Description

technical field [0001] The invention relates to the technical field, in particular to a simply supported truss structure for preventing lateral instability. Background technique [0002] The steel truss structure is mainly subject to bending deformation, and the load is transmitted to the substructure through the axial force. Compared with the beam structure, it can achieve a larger span and withstand a higher load. The steel truss structure converts the internal force of the member into the axial force of the bar, and compared with the solid-web section member, the load-bearing efficiency of the section is improved. Steel trusses have more obvious advantages in spanning capacity and bearing capacity, so they are widely used in various long-span roof structures, canopy structures and bridge structures. [0003] The members of the steel truss structure are mainly affected by the axial pressure, and the overall stability of the structure is more prominent. It is necessary to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C3/04
CPCE04C3/04
Inventor 崔家春徐继东巫燕贞
Owner EAST CHINA ARCHITECTURAL DESIGN & RES INST