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Roof truss with grid structure and roof

A network frame structure and roof truss technology, which is applied to truss structures, roofs, building components, etc., can solve the problems of unusable roof truss space, low utilization rate of roof truss space, and increased construction difficulty, so as to omit the lateral fixing process, The effect of improving space utilization and improving headroom utilization

Pending Publication Date: 2019-01-29
金耀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. Low installation efficiency
Due to the need to fix a single roof truss laterally, it increases the difficulty of construction and reduces the efficiency of construction, and if the installation is not in place, it is prone to rollover, causing accidents and posing a greater safety risk
[0005] 3. The space utilization rate of the roof truss is low
In the existing roof truss, the purlins are fixed on the upper chord of the roof truss, and the roof panel is laid on the purlins, so that the entire height of the roof truss is below the roof panel, but the space occupied by the roof truss cannot be used, such as some building structures The maximum height of the middle roof truss reaches about 2 meters, and the height close to the roof of 2 meters cannot be used, which wastes the construction space

Method used

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  • Roof truss with grid structure and roof
  • Roof truss with grid structure and roof
  • Roof truss with grid structure and roof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see Figure 1-3 , a roof truss with grid structure, which includes an upper chord 1, three lower chords 2, two middle chords 3, several connecting rods 12 and several web members 4 forming the grid structure, the upper chord 1 is located at Above the middle chord 3, the middle chord 3 is located above the lower chord 2, the cross section of the roof truss is triangular, and the upper chord 1 is located at the upper apex of the triangle, and the lower chord 2 is located at the bottom edge of the triangle; the upper chord 1 and Two adjacent middle chords 3 are connected by webs 4, the lower chords 2 and adjacent middle chords 3 are connected by webs 4, and the adjacent lower chords 2 are connected by connecting rods 12, Two adjacent intermediate chords are also connected by connecting rods 12 . The connection nodes of the grid structure adopt the form of bolt balls or welded balls.

[0027] The web 4 is connected to the upper chord 1 , the lower chord 2 or the middle ch...

Embodiment 2

[0035] see Figure 4 The difference between embodiment 2 and implementation 1 is that the middle chord is canceled, the roof truss includes an upper chord 1 and two lower chords 2, a web 4 is connected between the upper chord 1 and the lower chord 2, and the two lower chords 2 are connected with connecting rods 12, the two connecting rods 12 between the two lower chords 2, the four webs 4 between the lower chord 2 and the upper chord 1, and the two lower chords 2 are combined into a quadrangular pyramid structure , along the extending direction of the lower chord 2, several quadrangular pyramid structures are arranged. The other structures of the roof truss in this embodiment and the arrangement of the purlins are the same as those in Embodiment 1, and will not be repeated here.

[0036] It should be noted that the roof truss grid structure may include a combination of multiple structures in Embodiment 2 to form a grid three-dimensional roof truss structure with a triangular ...

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PUM

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Abstract

The invention discloses a roof truss with a grid structure and a roof. The roof truss comprises a top chord, at least three lower chords, at least two middle chords, a plurality of connecting rods anda plurality of web members, wherein the top chord, the lower chords, the middle chords, the connecting rods and the web members form the grid structure. The top chord is located above the middle chords, the middle chords are located below the lower chords, and the cross section of the roof truss is in a triangle shape. The top chord and the adjacent middle chords are connected through the web members, the lower chords and the adjacent middle chords are connected through the web members, the adjacent lower chords are connected through the connecting rods, and the adjacent middle chords are connected through the connecting rods. The roof truss and the roof improve the structural stability and installation efficiency of the roof truss and greatly enhance the bearing capacity and the rolloverresistance capacity of the roof truss, and the installation process is simplified; and on the other hand, the space utilization under a roof panel is improved, a first roof panel is almost flush withthe bottom of the roof truss, the upper part of the roof panel is flat and attractive, and the use of space clearance is expanded.

Description

technical field [0001] The invention relates to a roof truss and a roof with a grid structure, belonging to the technical field of building structures. Background technique [0002] The roof structures of some existing large-space building structures usually adopt the form of roof trusses supporting roof panels, such as factories, gymnasiums and other buildings. Most of the roof trusses adopt plane trapezoidal structure or plane triangular structure, such as the roof truss disclosed in Patent Document 1 (CN101463629A), Patent Document 2 (CN203129641U), and Patent Document 3 (CN206467892U). The roof truss of this plane structure is in the vertical plane It has certain stability and can bear the vertical downward load, but it also has the following deficiencies. [0003] 1. The lateral load resistance of the roof truss is poor, and the lateral stability is poor. Since the roof truss is a vertical plane structure, it is easy to roll over when subjected to a large horizontal l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B7/02E04C3/02E04C3/11
CPCE04B7/02E04B7/024E04C3/02E04C3/11
Inventor 金耀
Owner 金耀