CN104499578B - Space free-form surface wood latticed shell assembly type node for through bolt - Google Patents

Abstract

The invention discloses an assembled joint of space free curved surface wooden reticulated shells through bolts, which comprises a core tube and a wooden component assembly, the wooden component assembly is installed on the periphery of the core tube, and the core tube and the wooden component assembly The two parts are connected by tension bolts and nuts, or directly connected by bolts; the wooden component assembly includes an adapter, bar-end planting bars and wooden bar parts, the bar-end planting bar is welded on the adapter, and the wooden bar The parts are connected with the adapter through the bar end planting bars; the upper end surface and the lower end surface of the core tube are respectively provided with cover plates, the core tube is circular or polygonal, and when the core tube is polygonal, the number of sides of the polygon is the number of the wooden member Twice the number of wooden members of the assembly. The invention is used for the connection of the nodes of the reticulated shell of the long-span wooden structure, adapts to the concept of green energy saving and environmental protection, has great environmental protection significance, and has good social and economic significance.

Description

An Assembled Joint of Spatial Free-form Surface Wooden Reticulated Shells Through Bolts

technical field

The invention relates to the technical field of space structure wooden roof construction, in particular to an assembled joint of space free-curved wooden reticulated shells suitable for cross-threading bolts.

Background technique

Wood is a natural, environment-friendly material and is considered the preferred building material for "green buildings". Wood is beneficial and harmless to the environment in the process of generation, production, use and disposal. The application of wood to buildings can effectively reduce the comprehensive energy consumption of buildings and the negative impact of buildings on the environment, which is conducive to the construction of an environmentally friendly society in my country.

Similar to steel structures, the joints of modern long-span timber structure reticulated shells are the key links of the entire structural system, and play an important role in the bearing capacity, stiffness, and ductility of the entire structure. Different from the traditional forms of mortise and tenon joints and tooth connections in ancient buildings, modern large-span wooden structures mainly use bolt connections, pin connections, and nail connections. The connection of components is realized by combining fasteners such as pins and bolts with metal connectors.

At present, among the joints used in space free-form reticulated shell structures, the application of fabricated joints is seldom, especially for wood-structured reticulated shells. Prefabricated nodes are conducive to the development of my country's construction industrialization, improve production efficiency, save energy, develop green and environmentally friendly buildings, and help improve and ensure the quality of construction projects. Therefore, the value of developing an assembled node system that is suitable for large-scale production and does not have excessive requirements for mechanical processing equipment is particularly significant.

Contents of the invention

The purpose of the present invention is to face the blank of self-developed large-span wooden reticulated shell assembled joint in China, and propose a new type of space free-form wooden reticulated shell assembled joint through bolts, which has high bending resistance and joint stiffness.

The technical solution adopted in the present invention is: an assembled joint of space free curved surface wooden reticulated shell through bolts, including a core tube and a wooden component assembly, the wooden component assembly is installed on the periphery of the core tube, the core tube and wooden Component assemblies are connected by pull bolts and nuts, or directly connected by bolts;

The wooden component assembly includes an adapter, bar-end reinforcement and a wooden member, the rod-end reinforcement is welded on the adapter, and the wooden member is connected to the adapter through the rod-end reinforcement;

The upper end surface and the lower end surface of the core tube are respectively provided with cover plates. The core tube is circular or polygonal. When the core tube is polygonal, the number of sides of the polygon is twice the number of wooden poles in the wooden component assembly.

As a preference, the number of wooden rods of the wooden component assembly is an even number, the core tube is polygonal, and the core tube and the wooden component assembly are connected by pull bolts and nuts, so that the adapters of each rod can be more Firmly fixed on the two symmetrical sides of the core tube.

Preferably, the number of wooden rods of the wooden component assembly is an odd number, the core tube is polygonal, the core tube and the wooden component assembly are directly connected by bolts, and the adapter is fixed on the corresponding side of the core tube.

As a preference, when a node is subjected to a large force in engineering, an annular stiffener can be provided inside the core tube as required to strengthen the stiffness of the node.

Preferably, the material of the core tube, the cover plate and the adapter is stainless steel, alloy or Q-series steel.

Preferably, the cross-sectional shape of the wooden rod is square, rectangular or circular, and its material is log, glulam, sawn timber, laminated veneer lumber, parallel wood-chip glulam or laminated wood-chip glulam.

Preferably, the bar-end planting bar is screw, round steel, threaded steel, steel pipe or FRP (Fiber Reinforced Composite Plastic).

Preferably, the cover plate is directly welded to the upper end surface and the lower end surface of the core tube to increase its rigidity.

Preferably, the cover plate is provided with a cover plate cornice plate, and the adapter is provided with an adapter cornice plate, and the cover plate cornice plate and the adapter joint cornice plate are connected by cover plate bolts, and the cover Boards are connected to nodes.

Beneficial effects of the present invention:

1. The space free-curved surface wooden reticulated shell assembled node provided by the present invention has good bearing capacity and node stiffness. All node components can be prefabricated in the factory and assembled directly at the construction site, reducing the The labor intensity and construction difficulty of on-site workers have improved the construction quality at the same time.

2. The nodes in the present invention are simple in form, easy to install, easy to overhaul and convenient to construct and maintain, which not only reflects the advancement in technology, but also greatly reduces the maintenance and repair costs of wooden structures, and has high practical and economic value.

3. my country is rich in timber resources and convenient to select materials. Timber is a green, environmentally friendly and renewable resource, which is in line with the national policy of energy conservation and emission reduction.

Description of drawings

Fig. 1 is the on-site overall assembly diagram of Embodiment 1 of the present invention;

Fig. 2 is a diagram of the completion of the connection between the core tube and the rod in Embodiment 1 of the present invention;

Fig. 3 is a detailed view of the factory prefabricated bar wooden component assembly in Embodiment 1 of the present invention;

Fig. 4 is the on-site overall assembly diagram of Embodiment 2 of the present invention;

Fig. 5 is a completed view of the connection between the core tube and the rod in Embodiment 2 of the present invention.

In the figure: 1—core tube; 2—transfer joint; 3—bar end reinforcement; 4—wooden rod; 5—timber assembly; 6—tie bolt; 7—bolt; Nut; 10—annular stiffener; 11—cover bolt; 12—cover cornice; 13—transfer joint cornice.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Example 1

As shown in Figures 1-3, a space free-form surface wooden reticulated shell assembled node with bolts passing through it includes a core tube 1 and a wooden component assembly 5, and the wooden component assembly 5 is installed on the periphery of the core tube 1. The core tube 1 and the wooden member assembly 5 are connected through pull bolts 6 and nuts 9 , or directly connected through bolts 7; , the bar-end planting bar 3 is welded on the adapter 2, and the wooden bar part 4 is connected with the adapter 2 through the bar-end planting bar 3; the upper end surface and the lower end surface of the core tube 1 are respectively provided with cover plates 8 . Annular stiffeners 10 are arranged inside the core tube 1 . The material of the core tube 1, the cover plate 8 and the adapter 2 is stainless steel, alloy or Q-series steel. The cross-sectional shape of the wooden rod 4 is square, rectangular or circular, and its material is log, glulam, sawn timber, laminated veneer lumber, parallel wood-chip glulam or laminated wood-chip glulam. The bar-end planting bars 3 are screw rods, round steel, rebar, steel pipe or FRP. The cover plate 8 is provided with a cover plate cornice plate 12, and the adapter 2 is provided with an adapter cornice plate 13, and the cover plate cornice plate 12 and the adapter cornice plate 13 pass through a cover plate bolt 11 connect.

The number of wooden rods 4 of the wooden component assembly 5 is four, and the number of sides of the core tube 1 is twice that of the wooden rods 4, which is octagonal. The wooden component assembly 5 is symmetrically arranged on the core tube 1. On each side, the core tube 1 is connected by nuts 9. When the four wooden rods 4 are fixed around the core tube 1, pull bolts 6 are used to pass through the symmetrical sides of the core tube 1 and the corresponding holes of the adapter 2. The wooden component assembly 5 is more reliably fixed on the core tube 1 .

Example 2

As shown in Figure 4-5, this embodiment is the same as the rest of Embodiment 1, the difference lies in:

The number of wooden rods 4 of the wooden component assembly 5 is five, and the number of sides of the core tube 1 is twice that of the wooden rods 4, which is a decagonal shape. The wooden component assembly 5 is arranged on each side of the core tube 1. On the side, and use the bolt 7 to fix the wooden component assembly 5 on the core tube 1 more reliably.

It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. All components that are not specified in this embodiment can be realized by existing technologies.

Claims (7)

1. a kind of to the Space Free-Form Surface wood reticulated shell assembling type node wearing bolt it is characterised in that: include Core Walls Structure and wooden structure Part assembly, described wood component assembly is arranged on the periphery of Core Walls Structure, by drawing between Core Walls Structure and wooden component assembly Bolt and nut are connected or are directly connected to by bolt；

Described wood component assembly includes adaptor, rod end bar planting and rod part, and described rod end bar planting is welded on adaptor, institute State rod part to be connected with adaptor by rod end bar planting；

The upper surface of described Core Walls Structure and lower surface are respectively arranged with cover plate, and Core Walls Structure is circular or polygon, and Core Walls Structure is many During the shape of side, polygonal side number is the rod number of packages purpose twice of described wood component assembly；

Described cover plate is provided with cover plate Guttr board, and described adaptor is provided with adaptor Guttr board, cover plate Guttr board and adaptor Connected by cover plate bolt between Guttr board.

2. a kind of reticulated shell assembling type node wooden to the Space Free-Form Surface wearing bolt according to claim 1, its feature exists In: the rod number of packages mesh of described wood component assembly is even number, and described Core Walls Structure is polygon, Core Walls Structure and wooden component assembly Between connected by split bolt and nut.

3. a kind of reticulated shell assembling type node wooden to the Space Free-Form Surface wearing bolt according to claim 1, its feature exists In: the rod number of packages mesh of described wood component assembly is odd number, and described Core Walls Structure is polygon, Core Walls Structure and wooden component assembly Between be directly connected to by bolt.

4. a kind of reticulated shell assembling type node wooden to the Space Free-Form Surface wearing bolt according to claim 1, its feature exists In: annular ribbed stiffener is set inside described Core Walls Structure.

5. a kind of reticulated shell assembling type node wooden to the Space Free-Form Surface wearing bolt according to claim 1, its feature exists In: described Core Walls Structure, cover plate and switching head material are rustless steel, alloy or q system steel.

6. a kind of reticulated shell assembling type node wooden to the Space Free-Form Surface wearing bolt according to claim 1, its feature exists In: described rod end bar planting is screw rod, round steel, screw-thread steel, steel pipe or frp.

7. a kind of reticulated shell assembling type node wooden to the Space Free-Form Surface wearing bolt according to claim 1, its feature exists In: described cover plate is directly welded at upper surface and the lower surface of Core Walls Structure.