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Local chord support combined grid structure

A network frame structure and network frame technology, applied in the direction of building structure, construction, etc., can solve the problems of large indoor space occupation and limited application scenarios, and achieve the effect of less occupation, favorable design, and strong adaptability of roof modeling

Pending Publication Date: 2022-04-29
CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the overall structure of the tension string can reduce the thrust on the support column through self-balancing, the application scenarios are limited because the penetrating cables occupy a lot of indoor space.

Method used

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  • Local chord support combined grid structure
  • Local chord support combined grid structure
  • Local chord support combined grid structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]This embodiment provides a local chord-support combined grid structure, including the grid, and also includes the plane truss 2; the grid at the mid-span of the grid is replaced by the plane truss 2, and the non-mid-span of the grid adopts an orthogonal Just put the quadrangular pyramid grid frame 1. The upper chord 2c of the planar truss 2 is connected with the upper chords of the network frames on both sides, and the lower chord 2a of the planar truss 2 is connected with the lower chords 1a of the network frames on both sides; the lower chord 2a adopts a tensionable As for the chord, the lower chord 2a adopts a steel tie rod or a steel cable. Different from the existing string structure layout, in this embodiment, the string structure "plane truss 2" replaces part of the structure of the grid itself to realize embedded assembly and obtain a new type of hybrid grid structure, which can reduce the number of support columns It can bear the effect of horizontal thrust wit...

Embodiment 2

[0043] Further improvement on the basis of Example 1, the lower chord 2a adopts a double-rod arrangement, and the lower chord 2a is hingedly connected to the grid lower chord 1a through the connection node II5; the connection node II5 includes two pin lugs II5a, Two hollow spherical caps 5b and an ear plate are connected to the round pipe 5c.

[0044] The axial ends of the lug plate connecting pipe 5c are arranged in sequence from the inside to the outside with the pin lug plate II5a and the hollow spherical crown 5b, that is, according to the hollow spherical crown 5b, the pin shaft lug plate II5a, the lug plate connecting circular pipe 5c, and the pin shaft The order of lug plate II5a and hollow spherical crown 5b is welded and connected in sequence to form an integrated structure. The two pin shaft lug plates II5a are symmetrically arranged with the lug plate connecting round pipe 5c as the base point, and the two hollow spherical crowns 5b are arranged with the lug plate co...

Embodiment 3

[0047] On the basis of embodiment 2, it is further improved, and also includes connection node I4; the plane truss 2 includes an upper chord 2c, two braces 2b and four lower chords 2a; The ends of the struts 2b are connected, the lower ends of the two struts 2b are connected to the connecting node I4, the upper chord 2c and the struts 2b form an inverted isosceles triangle structure; one end of the lower chord 2a is hingedly connected to the connecting node I4, and the other end is connected to the The pin lug plate II5a connecting the node II5 is hingedly connected.

[0048] The connection node I4 includes a pin lug plate I4a, a strut connecting plate 4b, a coordinating stiffener plate 4c and a pin shaft I4d. The two pin lugs I4a are connected through the strut connecting plate 4b, and the two pin lugs I4a have the same structure, and the plate surfaces are arranged parallel and symmetrical to each other; holes are provided at both axial ends of each pin lug I4a, through The...

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Abstract

The invention discloses a local chord support combined net rack structure which comprises a net rack and a plane truss. A grid at the midspan part of the net rack is replaced by a plane truss, an upper chord of the plane truss is connected with net rack upper chords of the net racks on the two sides, and a lower chord of the plane truss is connected with net rack lower chords of the net racks on the two sides; and the lower chord member is a stretchable chord member. The local chord support combined grid structure has the advantages of being high in roof modeling adaptability, small in indoor space occupation, small in thrust on the supporting columns and the like.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a local string-branch combined grid structure. Background technique [0002] The space grid structure is a new structure developed vigorously in the middle of the 20th century. It is a structural form in which multiple rods are arranged according to certain rules in space and connected by nodes. The ball house of Shanghai Normal University built in 1964 is a grid structure. Later, due to its space force characteristics, light weight, strong spanning ability, and standardized rod nodes for easy installation, it is widely used in stadiums, theaters, etc. Transportation buildings, industrial workshops and warehouses and other fields. [0003] In recent years, with the development of the construction industry and the improvement of architectural aesthetics, more and more roof structures with free roof shapes and huge undulations have appeared. Among them, the arched...

Claims

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Application Information

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IPC IPC(8): E04B1/19
CPCE04B1/19E04B1/1903E04B2001/1924E04B2001/1957E04B2001/1996
Inventor 刘宜丰谢俊乔夏循马永兴周劲炜
Owner CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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