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Fabricated wooden structure connection node with enhanced stiffness

A connection node, prefabricated technology, applied in building structures, buildings, etc., can solve problems such as low stiffness and strength, and achieve the effects of convenient construction, high flexural stiffness, and improved bearing capacity

Active Publication Date: 2019-06-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low stiffness and strength of the connection nodes of the existing wooden reticulated shells, the present invention further proposes an assembled wood structure connection node with enhanced rigidity

Method used

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  • Fabricated wooden structure connection node with enhanced stiffness
  • Fabricated wooden structure connection node with enhanced stiffness
  • Fabricated wooden structure connection node with enhanced stiffness

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014] Specific implementation mode one: combine Figure 1 to Figure 4 This embodiment is described. The rigidity-enhanced assembled timber structure connection node described in this embodiment includes a central hub 1, a plurality of shear blocks 5, a plurality of board connecting plates 7, a plurality of groups of boards 3, and a plurality of Tie bolts 6 and multiple sets of sleeves 8, a plurality of wooden components 2 to be connected are arranged along the outer circumferential direction of the central hub 1, each wooden component 2 to be connected is respectively perpendicular to the outer wall of the central hub 1, and each wooden component to be connected A group of slots 2-1 are respectively provided on the top and bottom of the member 2 along the length direction, and a board 3 is inserted in the slot 2-1, and an adhesive layer is provided between the board 3 and the slot 2-1. The upper and lower parts of the inner end surface of the connecting wooden member 2 are re...

specific Embodiment approach 2

[0022] Specific implementation mode two: combination Figure 1 to Figure 3 This embodiment will be described. The central hub 1 in this embodiment is a polygonal cylinder with both ends open. Other compositions and connection methods are the same as those in Embodiment 1.

[0023] The number of sides of the polygon of the central hub 1 corresponds to the number of wooden elements 2 to be connected. Diaphragms and stiffeners can be arranged inside the central hub 1 to enhance deformation rigidity.

specific Embodiment approach 3

[0024] Specific implementation mode three: combination Figure 1 to Figure 2 and Figure 4 This embodiment is described. In this embodiment, each set of boards 3 includes two boards 3 arranged side by side. Other compositions and connection methods are the same as those in the second embodiment.

[0025] In this way, two boards 3 are arranged side by side along the width direction of the wooden members 2 to be connected, and each board 3 is arranged along the length direction of the wooden members 2 to be connected, so as to increase the distance between the boards 3 and the wooden members 2 to be connected. A larger contact area increases the bonding force, thereby enhancing the strength and stability between the two.

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Abstract

The invention relates to a fabricated wooden structure connection node with the enhanced stiffness, relates to the technical field of constructional engineering, and aims to solve the problem of low stiffness and strength of existing wooden lattice shell connection nodes. The fabricated wooden structure connection node with the enhanced stiffness comprises a center hub, a plurality of shear-resisting stop blocks, a plurality of inserting plate connecting plates, a plurality of groups of inserting plates, a plurality of groups of tie bolts and a plurality of groups of casings, a plurality of to-be-connected wood components are arranged in the outer circumferential direction of the center hub, groups of inserting grooves are formed in the top surface and the bottom surface of each to-be-connected wood component in the length direction correspondingly, the inserting plates are inserted in the inserting grooves, adhesive layers are arranged between the inserting plates and the inserting grooves, installation grooves are formed in the upper parts and the lower parts of the end faces of the inner sides of the to-be-connected wood components correspondingly, the inserting plate connectingplates are horizontally arranged in the installation grooves, the groups of casings are fixedly connected to the outer sides of the inserting plate connecting plates, the casings are internally provided with the tie bolts, the tie bolts are fixedly connected with the center hub, and the shear-resisting stop blocks are arranged in the installation grooves of the to-be-connected wood components correspondingly. The fabricated wooden structure connection node with the enhanced stiffness is used for connection of space wood lattice shell structures.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to an assembled wood structure connection node with enhanced rigidity. Background technique [0002] Compared with other building materials, wood is energy-saving, environmentally friendly, green and renewable, and has broad application prospects under the background of global advocacy of sustainable development. Single-layer wood reticulated shell structures are often used in large public buildings, and bolted steel splints or steel fill-in joints are commonly used. These joints are semi-rigid, and their deformation stiffness has a significant impact on the overall stability of the structure. The bolted connection of wooden members is accompanied by significant slip deformation during the stress process, and its strength and stiffness are low, and its energy dissipation capacity is limited. The above-mentioned wooden reticulated shell joints formed by bolted connec...

Claims

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Application Information

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IPC IPC(8): E04B1/58E04B1/26
Inventor 牛爽祝恩淳范峰支旭东张妩迪李世光万祥
Owner HARBIN INST OF TECH