CN-112282060-B - Space grid structure

CN112282060BCN 112282060 BCN112282060 BCN 112282060BCN-112282060-B

Abstract

The invention belongs to a space grid structure in the field of civil engineering structures, and adopts the technical scheme that the space grid structure comprises a crossed grid-shaped single-layer hollowed roof, a space grid roof truss and horizontal steel inhaul cables; the top end of the vertical structure is tied with a horizontal steel cable, the horizontal steel cable is closed, the horizontal steel cable is segmented into a plurality of segmentation points according to a certain interval, the segmentation points are first nodes of the structure, a first component of the space lattice roof truss is led out upwards along the inclined direction of the inverted quadrangular pyramid from each first node of the structure, the other end of the first component is a second node of the structure, the second node of the structure is simultaneously an intersection point of the adjacent first components, and the space lattice roof truss is formed by the same. Connecting the adjacent uppermost layer structure nodes by connecting rods to form a single-layer hollow roof. The invention achieves the aims of exposing the structure and meeting the space and appearance requirements of the cultural creative building, and simultaneously can meet the requirements of reasonable structural stress and convenient construction.

Inventors

ZHANG JUNJIE
ZHOU ZHONG
WANG HONGJUN
ZHOU JIAN
LIU HAIYANG
Yu Menhui
LI YE
YANG XIAOTIAN
Cai Chengze

Assignees

华东建筑设计研究院有限公司

Dates

Publication Date: 20260512
Application Date: 20201126

Claims (4)

1. A space grid structure is characterized by comprising a single-layer hollowed roof, a space grid roof and horizontal steel cables, wherein the single-layer hollowed roof, the space grid roof and the horizontal steel cables are crossed and meshed, the horizontal steel cables (A) are closed at the top end of a vertical structure, the horizontal steel cables (A) are segmented into a plurality of segmentation points at certain intervals, the segmentation points are structural first nodes (N1), a first component (B1) of the space grid roof is led out upwards along the oblique direction of an inverted quadrangular pyramid from each structural first node (N1), the other end of the first component (B1) is a structural second node (N2), the structural second node (N2) is simultaneously the intersection point of adjacent first components (B1), a second component (B2) of the space grid roof is led out upwards along the oblique direction of the inverted quadrangular pyramid from each structural second node (N2), the other end of the second component (B2) is a structural third node (N3), the other end of the structural third node (N3) is the intersection point of the adjacent structural third component (B3) along the oblique direction of the inverted quadrangular pyramid, the other end of the structural third component (B3) is led out of the structural third node (N3), and connecting the adjacent fourth nodes (N4) of the structure by using connecting rods to form the single-layer hollowed-out roof.
2. A space grid structure according to claim 1, wherein the fourth nodes (N4) of the structure located on the inner hollow edges of the single-layer hollow roof are inwards derived to form a complete grid member to fill the hollow space of the single-layer hollow roof to form a second roof, and the second roof and the single-layer hollow roof are integrated.
3. The space grid structure according to claim 1, wherein the single-layer hollowed-out roof is a single-layer curved surface or a single-layer plane.
4. A space grid structure according to claim 2 wherein said second roof is a single-layer curved surface or a single-layer planar surface.

Description

Space grid structure Technical Field The invention relates to the field of civil engineering structures, in particular to a space grid structure system. Background The space grid structure is a structure system which is frequently adopted by a large-span building and has the forms of space trusses, net racks and the like. The structure needs to meet the requirements of building space forms in addition to safety and economy. The traditional space structure such as a space three-dimensional truss, a net rack and the like has high structural stress efficiency and convenient manufacture and construction, but web member members and chord members are overlapped in space, and the structure form is lack of novelty and is not in accordance with the space form requirements of the current building design diversification. In addition, the traditional space structure arrangement mode is relatively single and is mechanized, and is especially not suitable for cultural originality and traditional ancient architecture type buildings. As the demands of architects for building integration are increasing, rigid space grid structures in the prior art cannot meet creative building space demands. Disclosure of Invention In order to solve the technical problems, the invention provides a space grid structure which is exposed and meets the space and appearance requirements of a cultural creative building, and meanwhile, the requirements of reasonable structural stress and convenient construction can be met. The technical scheme is that the space grid structure comprises a single-layer hollowed roof, a space grid roof and horizontal steel cables, wherein the single-layer hollowed roof, the space grid roof and the horizontal steel cables are in a cross grid shape, the top end of the vertical structure is tied with the horizontal steel cables to be closed, the horizontal steel cables are segmented to form a plurality of segmentation points according to a certain interval, the segmentation points are first structural nodes, first structural members of the space grid roof are led out upwards along the oblique direction of an inverted quadrangular pyramid from each first structural node, the other ends of the first structural members are second structural nodes, the second structural nodes are simultaneously intersection points of adjacent first structural members, second structural members of the space grid roof are led out upwards along the oblique direction of the inverted quadrangular from each second structural node, the other ends of the second structural members are simultaneously intersection points of adjacent third structural members, and the fourth structural members are simultaneously connected with the fourth structural nodes of the adjacent structural members by connecting rods to form the single-layer hollowed roof. Based on the technical characteristics, the fourth node of the structure positioned on the inner hollow edge of the single-layer hollow roof is inwards derived to form a complete grid member, the hollow space of the single-layer hollow roof is filled with the complete grid member to form a second roof, and the second roof and the single-layer hollow roof are integrated. Based on the technical characteristics, the single-layer hollowed-out roof is a single-layer curved surface or a single-layer plane. Based on the technical characteristics, the second roof is a single-layer curved surface or a single-layer plane. The shapes of the second roof and the single-layer hollowed-out roof can be any curved surface or plane shape, and can be adjusted according to actual engineering. The materials of the first component, the second component, the third component and the connecting rod can be metal, wood or other engineering materials according to actual conditions, and the first node, the second node, the third node and the fourth node can be welded or assembled by combining site construction precision conditions and factory prefabrication level. The working principle of the technology is that a closed horizontal steel cable and a first component of a space lattice roof truss form a stable triangle so as to restrict the displacement of a second node of the space lattice roof truss, a connecting rod of a single-layer hollowed roof and a third component of the space lattice roof truss form a stable inverted quadrangular pyramid system so as to restrict the displacement of a third node of the space lattice roof truss, and structural loads are transmitted and converged along the space lattice roof truss from top to bottom. All nodes in the whole system can keep stable structure, and a reliable structural system is formed. The space grid structure has the beneficial effects that the space grid structure aims at providing a space grid structure which is reasonable in stress, convenient to construct, safe and reliable, and meets the structural stress requirement and the building space form. Drawings Fig. 1 is a perspective view o