Truss-string structure with additional standby cables

A string truss and truss technology, which is applied to the string truss structure and its construction field for adding equipment cables, can solve problems such as collapse, low redundancy of string truss structures, casualties and economic losses, etc., and achieve shock relief, Improve the ability of anti-successive collapse and improve the effect of internal force

Inactive Publication Date: 2015-09-30
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The string truss structure has low redundancy. Once the lower cable breaks and the remaining structure is impacted, it will often collapse, resulting in heavy casualties and serious economic losses.

Method used

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  • Truss-string structure with additional standby cables
  • Truss-string structure with additional standby cables
  • Truss-string structure with additional standby cables

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Embodiment Construction

[0029] The present invention will be further specifically described below in conjunction with the embodiments and the accompanying drawings.

[0030] N is taken as 3, that is, a single chord truss structure with 7 struts in the middle is set as an example to illustrate the implementation method of the chord truss structure for equipment extension provided by the present invention. As shown in Figures 1 to 4, a string truss structure for adding cables for equipment in this embodiment is composed of a traditional string truss and a central spare cable 4, and the central spare cable 4 is symmetrically arranged on the upper truss of the traditional string truss 1 and the lower cable 3 between.

[0031] The chord truss of the present invention, as shown in Figures 1 to 4, includes an upper truss 1, seven middle struts 2, a lower stay cable 3, a fixed hinge support 5, and a sliding hinge support 6. Among them, the upper truss 1 is an upright quadrangular pyramidal space arch truss ...

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PUM

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Abstract

The invention discloses a truss-string structure with additional standby cables. The truss-string structure is composed of an upper truss, middle supporting rods, a lower inhaul cable, a supporting structure and the middle standby cables. The upper truss is a square quadrangular pyramid space arch truss which is composed of multiple upper chord members, lower chord members, diagonal web members and horizontal web members; the two ends of the lower inhaul cable are anchored at the ends of the upper truss; the multiple supporting rods are evenly arranged between the upper truss and the lower inhaul cable, and the top ends and the bottom ends of the supporting rods are connected with the lower chord members of the upper truss and the lower inhaul cable respectively; the two ends of the middle standby cables are connected with the lower chord members of the upper truss and the bottom ends of the supporting rods respectively; the supporting structure is composed of a fixed hinge support and a sliding hinge support which support the two ends of the upper truss respectively. Compared with a traditional truss-string structure, the redundancy rate of the truss-string structure with the additional standby cables is increased, and the progressive collapse resistance of the truss-string structure with the additional standby cables is improved. The truss-string structure is simple in structural form, convenient to construct, easy to realize and suitable for being applied to practical engineering.

Description

technical field [0001] The invention belongs to the field of large-span prestressed space structures, and relates to a string tension truss structure and a construction method for adding equipment cables. Background technique [0002] String trusses are mainly composed of flexible cables at the lower part and rigid trusses at the upper part. The cables are prestressed and anchored at both ends of the trusses. The stay cables and the trusses are connected by vertical struts. The structure is a self-balancing hybrid space structure, which can give full play to the tensile properties of high-strength materials, and has the advantages of reasonable force, light weight, simple structure, and strong space spanning ability. With the development of my country's construction industry and the improvement of architectural design level, the tension truss structure has received more and more attention, and is widely used in important public buildings with large spaces such as stadiums an...

Claims

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Application Information

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IPC IPC(8): E04B1/342E04C3/11E04C3/10
Inventor 陆金钰武啸龙舒赣平
Owner SOUTHEAST UNIV
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