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Single-layer space lattice structure assembled double-ring node

A spatial grid and prefabricated technology, applied in building construction, construction, etc., can solve the problems of material waste and achieve the effects of high prefabrication, fast construction speed, and light structural modeling

Inactive Publication Date: 2016-08-03
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The connection scheme of the plate-type joint is simple and feasible, but the design of the joint itself restricts the structural members to use I-shaped cross-sections, and all the members of the same node are connected to a central ingot, resulting in some of the members being primary and secondary, and all The height of the rods must be the same, resulting in a waste of material

Method used

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  • Single-layer space lattice structure assembled double-ring node
  • Single-layer space lattice structure assembled double-ring node
  • Single-layer space lattice structure assembled double-ring node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Figure 1 to Figure 6 It is a schematic diagram of nodes in Embodiment 1 of the present invention, and it is a node in a single-layer spatial grid structure that distinguishes primary stress-bearing members and secondary stress-bearing members. combine figure 1 , figure 2 and image 3 , the present invention mainly includes five parts: one is the central node ring, which is divided into an upper node ring 1 and a lower node ring 2, which are cut and processed from a solid ring, and the ring is provided with bolt holes, which can be connected with the main rods 3 and The secondary rods 4 are connected; one is the sealing plate connector 5, which has bolt holes on the upper and lower flanges; the other is the small sealing plate 7, which is a rectangular steel plate with bolt holes, and one side is welded to the secondary rod 4 One side of the rod end is connected to the upper node ring through high-strength bolts 6; the other is the high-strength bolt 6, which connec...

Embodiment 2

[0043] Figure 7 to Figure 10 It is a schematic diagram of Embodiment 2 of the present invention. When the stress on each member of the single-layer space grid structure is relatively uniform, all the members connected by the central node ring are the main member 3, and other members and connection methods are the same as in the first embodiment.

[0044] The processing and assembly process of the present invention are described below:

[0045] 1. According to the specific situation of the project, design the single-layer spatial grid structure, determine the stress situation of the nodes, determine the node form as Embodiment 1 or Embodiment 2 and the specifications of the rods;

[0046] 2. According to the data in the first step, further calculate the size of the central node ring, the sealing plate connector and the high-strength bolt, and determine the performance grade of the high-strength bolt and the grade of the steel. Wherein, the height of the connecting piece of t...

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Abstract

The invention discloses a single-layer space lattice structure assembled double-ring node, which mainly comprises five parts including center upper and lower node rings, I-shaped connecting elements, a large sealing plate, a small sealing plate, high-strength screw bolts, major rod elements and minor rod elements, wherein the center upper and lower node rings are provided with screw bolt holes; the wing edge parts of the I-shaped connecting elements are provided with screw bolt holes; the large sealing plate and the small sealing plate are rectangular steel plates; the large sealing plate is welded with the I-shaped connecting elements; the small sealing plate is provided with screw bolt holes, and is welded with the rod ends of the minor rod elements; the high-strength screw bolts are connected with the upper and lower node rings and the I-shaped connecting elements; the upper node ring and the small sealing plate are connected; the major rod elements and the minor rod elements are rectangular steel pipes. The node rings can be only connected with the major rod elements and can be connected with both the major rod elements and the minor rod elements; a certain angle can be formed between the node rings and the rod elements. The node provided by the invention can be applicable to a single-layer space lattice structure, and has the characteristics that the mechanical property is good; the assembling performance is high; the construction speed is high; the construction quality can be easily controlled; the construction cost is low, and the like.

Description

technical field [0001] The invention relates to the technical field of spatial structure design in the construction industry, in particular to an assembled double-link node suitable for a single-layer space network structure. Background technique [0002] With the continuous improvement of architectural design theory and structural design level, the change of single-story space structure building shape is becoming more and more flexible, and it is widely used in large-scale iconic steel structure buildings. The development of architectural modeling means that there are higher requirements for architectural structures. In a single-layer spatial grid structure, members and nodes are two important components, and the design of nodes is an important guarantee for the safety and reliability of structural design, including the form of nodes and their stiffness and strength. Welded hollow ball joints and bolted ball joints are the main joint forms of spatial grid structures. Thro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/24E04B1/58
CPCE04B1/2403E04B1/58E04B2001/2406E04B2001/2466
Inventor 冯若强陈瑶李海建
Owner SOUTHEAST UNIV
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