Device for reinforcement, energy dissipation and seismic mitigation of tenon and mortise joint of timber structure

Abstract

The invention discloses a device for reinforcement, energy dissipation and seismic mitigation of a tenon and mortise joint of a timber structure. The device for reinforcement, energy dissipation and seismic mitigation of the tenon and mortise joint of the timber structure comprises a wood beam, a wood pole, the tenon and mortise joint, embedded steel bars, joint connecting pieces and joint fastening pieces, wherein the wood beam is connected with the wood pole through the tenon and mortise joint, conduits are formed in the upper end surface and the lower end surface of the wood beam or in the two lateral surfaces of the wood beam respectively, the embedded steel bars are embedded in the conduits in advance, the conduits are sealed through small battens and special structural adhesive, one end of each joint connecting piece is connected with a corresponding embedded steel bar, the other end of each joint connecting piece is connected with a corresponding joint fastening piece, and the joint fastening pieces penetrate through the pole body of the wood pole and are fixed on the side, back on to the wood beam, of the wood pole through anchor plates and cushion blocks. The device for reinforcement, energy dissipation and seismic mitigation of the tenon and mortise joint of the timber structure is high in bending resistance, energy-dissipation capacity and ductility, and capable of guaranteeing stability of the structure under the small earthquake condition, achieving serious deformation under the large earthquake condition to control structural damage, and achieving automatic restoration of the structure after an earthquake.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a tenon-tenon joint, in particular to a beam-column tenon-tenon joint of an ancient architectural wooden structure, which is mainly (but not exclusively) used for reinforcement, energy consumption and shock absorption of existing wooden structure beam-column tenon-tenon joints It can also be used for reinforcement and energy dissipation of mortise and tenon joints of newly built wooden structure beams and columns. Background technique [0002] my country's wooden structure has a long history. From ancient palace buildings, temples and halls to residential buildings, a large number of ancient architectural wooden structures are used. At the same time, ancient wooden structures are widely distributed, almost all over the country. The famous ancient wooden structures that have been handed down to the present are: The Forbidden City in Beijing, Wooden Pagoda in Ying County, Shanxi, Dule...

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Problems solved by technology

[0005] 1) Not easy to replace and overhaul

For iron reinforced components, it is difficult to replace them due to corrosion problems, and at the same time brings potential safety hazards; for FRP reinforcement methods, since FRP is pasted on the surface of wooden components with structural adhesive, it is difficult to replace, and it is not easy to repair the reinforced parts. overhaul

[0006] 2) The problem of difficult reset after the earthquake still exists

Traditional reinforcement methods can generally improve the stiffness of mortise and tenon joints, and at the same time have a certain energy dissipation capacity, but after the earthquake, there are still residual deformations, and it is still difficult to restore the position, and the repair cost is also high

[0007] 3) After reinforcement, it will generally affect the internal appearance of the building

After the traditional method of reinforcement, the general reinforcement materials are exposed at the joints, which will have a certain impact on the appearance of the original building, which does not conform to the principle of repairing the old as the old

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