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Long-span roof truss purline

A large-span and truss technology, applied to truss structures, girders, truss beams, etc., can solve the problems of increased structural steel consumption, increased construction costs, and increased construction difficulty, achieving fast construction speed, maintaining strength and rigidity, and structural The effect of simple form

Inactive Publication Date: 2014-11-26
HENAN TIANFON STEEL STRUCTURE CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the problem was solved by using solid-web H-shaped steel girders or high-frequency welded H-shaped steel girders instead of purlins or using longitudinal bracket structure systems, but these methods often lead to a substantial increase in the amount of steel used in the structure, as well as construction costs and Increased construction difficulty

Method used

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  • Long-span roof truss purline
  • Long-span roof truss purline
  • Long-span roof truss purline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one: see figure 1 , Figure 3-Figure 5 , a long-span roof truss purlin according to the present invention comprises a plurality of mutually parallel truss purlin units 14 arranged on the roof, and the single truss purlin unit 14 comprises mutually parallel truss purlin units made of C-shaped cold-formed thin-walled The upper chord 1 and the lower chord 2, the web 3 made of thin-walled welded pipe arranged between the upper chord 1 and the lower chord 2, and the end supports 4 arranged at both ends of the upper chord 1 and the lower chord 3, The end support 4 includes a connection base 9 fixedly arranged at the end of the upper chord 1 and an I-shaped support 10 arranged at the bottom of the connection base 9. The lower plate of the I-shaped support 10 is connected to the lower chord 2 A corner brace 11 is arranged between them, and the web 3 is fixedly connected with the upper chord 1 and the lower chord 2 by bolts, and the web 3 is evenly arranged between t...

Embodiment 2

[0022] Embodiment two: see Figure 1-Figure 5 , the structure of this embodiment is basically the same as that of Embodiment 1, and the similarities will not be repeated. The difference is that in the large-span factory building with the middle span column, the ends of the two truss purlin units 14 are fixedly connected vertically, and The connection is provided with a cross-column support, and the cross-column support includes a connection base 9 fixedly connected to the upper chords 1 of the two truss purlin units 14 on both sides and an I-shaped support 10 arranged at the bottom of the connection base 9, Corner braces 11 are provided between the lower bottom plate of the I-shaped support 10 and the lower chords 2 of the two truss purlin units 14 .

Embodiment 3

[0023] Embodiment three: see figure 1 , figure 2 , Figure 4-Figure 6 , the structure of this embodiment is basically the same as that of Embodiment 1, and the similarities will not be repeated. The difference is that the upper chord 1 and the lower chord 2 are made of Z-shaped cold-formed thin-walled steel. The construction site can achieve better bearing effect.

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PUM

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Abstract

The invention relates to a purline structure. The long-span roof truss purline comprises a plurality of truss purline units which are parallel to one another on a roof, wherein each truss purline unit comprises an upper chord member and a lower chord member which are made from C-shaped, U-shaped or Z-shaped thin-walled cold-formed steel and are mutually parallel, a web member which is arranged between the upper chord member and the lower chord member and is mad from a thin-walled welding pipe, and end supports arranged at two ends of the upper chord member and the lower chord member. According to the truss purline disclosed by the invention, the structural form is more concise, the construction speed is high and a larger space structure can be provided, and the truss purline has advantages in winding displacement and suspension beyond comparison of a normal purline; moreover, the truss purline disclosed by the invention can better adapt to bearing roof load and wind load, and simultaneously can effectively keep strength and rigidity under a comprehensive action of suspension load and live load.

Description

technical field [0001] The invention relates to a purlin structure, in particular to a large-span roof truss purlin. Background technique [0002] In some specific industries, due to the needs of production activities and transportation, such as supermarkets, logistics centers, automobile manufacturing plants, etc., buildings are required to provide wider and more flexible spaces, and the column spacing may reach more than 12m, or even 18m; Some buildings, due to the large hanging load on the roof, exceed the bearing range of cold-formed thin-walled purlins. In the past, the problem was solved by using solid-web H-shaped steel girders or high-frequency welded H-shaped steel girders instead of purlins or using longitudinal bracket structure systems, but these methods often resulted in a substantial increase in the amount of steel used in the structure, as well as construction costs and Increased construction difficulty. Contents of the invention [0003] The object of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/11
Inventor 宋新利田磊杨德喜胡文悌赵峰刘淑华张世林
Owner HENAN TIANFON STEEL STRUCTURE CONSTR