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Member-insertion type aluminum-alloy truss structure with plate gussets

A truss structure and aluminum alloy technology, applied in the field of trusses, can solve the problems that the structure cannot be used for large-scale civil engineering, the strength of welded aluminum alloy materials is reduced, and the aluminum alloy welding technology requirements are high, and achieve reasonable stress, high corrosion resistance, Material saving effect

Inactive Publication Date: 2011-01-19
林娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The welding technical requirements of aluminum alloy are high and difficult
[0004] (2) The welded aluminum alloy has the defect that the material strength of the heat-affected zone decreases
[0005] (3) It is not convenient for factory processing and production, and it is not convenient for on-site construction
[0008] The aluminum alloy structure frame disclosed above is mainly used for exhibitions and conference stages, and its structure cannot be used for large-scale civil engineering, housing engineering, and bridge engineering. At the same time, the disadvantage is that the structure is relatively complicated. The stepped shaft, the stepped shaft needs to be equipped with external threads and springs, and the joints must be connected with steel sheets, which is very difficult to manufacture and construct, which increases the manufacturing cost
Document 2 mentions that the gusset plate is connected to each other with bolts, but the structure of the gusset plate is not disclosed

Method used

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  • Member-insertion type aluminum-alloy truss structure with plate gussets
  • Member-insertion type aluminum-alloy truss structure with plate gussets
  • Member-insertion type aluminum-alloy truss structure with plate gussets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: a triangular truss of a raw material warehouse in the south coast, with a span of 24m and a height of 2.8m (see Figure 4 ).

[0037] Option 1: The steel pipe welded truss originally designed as Q235B uses 713kg of steel per truss. Based on 5,000 yuan per ton, the cost of each truss is 3,565 yuan.

[0038] Option 2: Use 6-series aluminum alloy materials instead, planting rod-type plate-node aluminum alloy trusses, and use 269kg of material per truss. Calculated at 22,000 yuan per ton, the cost per truss is 5,918 yuan.

Embodiment 2

[0039] Embodiment two: certain factory building 24 meters span trapezoidal trusses, sag height 2.80m (see Figure 5 ).

[0040] Option 1: Q235B-shaped steel welded truss, the amount of steel used per truss is 879kg, calculated at 5,000 yuan per ton, the cost per truss is 4,395 yuan.

[0041] Option 2: Use six-series aluminum alloy materials instead, planting rod-type plate-node aluminum alloy trusses, and use 300kg of material per truss. Calculated at 22,000 yuan per ton, the cost per truss is 6,600 yuan.

[0042] It can be seen from the above embodiments that although the cost per truss of the aluminum alloy truss is higher than that of the steel truss, its weight per truss is only about 30% of that of the steel truss. It greatly reduces the self-weight of the building, saves materials for the columns and foundations supporting the truss, and is very beneficial to reduce the construction cost, and also further improves the seismic performance of the structure.

[0043] The ...

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Abstract

The invention discloses a member-insertion type aluminum-alloy truss structure with plate gussets. The truss structure comprises a gusset plate, and aluminum-alloy truss web members and a chord member which are connected with the gusset plate. The truss structure is characterized in that: the gusset plate is provided with two grooves, wherein one groove is used for the insertion and connection of the chord member, while the other is used for the insertion and connection of the web members. The chord member is connected with the gusset plate by bolts or rivets, and the web members are also connected with the gusset plate by the bolts or the rivets, so that the gusset plate is connected with the aluminum-alloy members in a transverse direction, a vertical direction and an inclined direction to form the aluminum-alloy truss structure with the characteristics of rational stressing, reliable structure and convenient design, manufacture and construction. The aluminum-alloy truss structure of the invention has the characteristics of reliable connection, simple structure and convenient manufacture and construction.

Description

technical field [0001] The invention relates to a truss, which is a structural system commonly used in the fields of civil engineering, building engineering and bridge engineering. Background technique [0002] Truss, also known as truss structure, refers to truss beam, which is a kind of lattice beam structure. Truss structure is often used in public buildings such as large-span factories, exhibition halls, gymnasiums and bridges. . The trusses we often see include steel trusses, reinforced concrete trusses, prestressed concrete trusses, wooden trusses, steel and wood composite trusses, and steel and concrete composite trusses. According to the shape, the trusses are divided into triangular trusses, trapezoidal trusses, polygonal trusses, parallel chord trusses, arched trusses and vierendeel trusses. When choosing the truss form, the use, material, support method and construction conditions of the truss should be considered comprehensively. Under the premise of meeting th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/24E04C3/08E04C3/11E04B1/58E01D6/00E01D19/00
Inventor 林娟梁琨
Owner 林娟
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