Prestress embedded steel bar connection splicing wood beam

Abstract

The invention discloses a prestressed embedded steel bar connection spliced wood beam which comprises a plurality of wood beam sections which are connected into a complete wood beam through nodes, and each wood beam section is formed by cutting off a complete giant wood beam according to actual transportation conditions; the joint comprises hardware at the two ends of the wood beam section and an inhaul cable at the bottom of the wood beam. The hardware is implanted into the two ends of the wood beam section through the screws connected with the hardware in a bolted mode, the inhaul cable is buckled in a cable groove in the bottom of the wood beam through a matched cable saddle, and the end of the inhaul cable is anchored to the hardware through a sleeve. And hardware at the end parts of different wood beam sections is connected through field welding. According to the prestressed embedded steel bar connection spliced wood beam disclosed by the invention, the hardware is fixed on the wood beam at the end part in an embedded steel bar screw mode, and the tensile property of the wood beam at a rigid node is improved by utilizing an embedded steel bar connection rift-grain force transfer mode, so that the brittle failure of tensile splitting of a wood tensile area is avoided. And meanwhile, for the outer-layer embedded steel bars under the action of long-term high-strength load, the zippers additionally embedded into the wood beam at the bottom of the beam can play a role in replacement when the zippers fail to work. The method is high in bearing capacity, reliable and stable in system and easy to machine. The method is suitable for the structural fields of large-span buildings, bridges and the like.

Description

technical field [0001] The invention relates to a prestressed planting bar connecting and splicing wooden beams, mainly (but not limited to) the technical field of large-span building structure buildings and roofs. Background technique [0002] As the scope of application of wood structure buildings is no longer limited to low-rise buildings, some large buildings also begin to use wood structures. In the current construction process, the application of wooden beams has become more extensive, and the lengths required for different positions are different. When the original length of the wooden beams cannot meet the requirements of construction and transportation, it needs to be spliced ​​before use. . [0003] Traditional splicing generally adopts on-site gluing or hardware connection plate and bolt connection to increase the bending and bearing capacity of the splicing. However, for on-site glued wood beams, such spliced ​​wood beams are very demanding on construction si...

AI Technical Summary

Problems solved by technology

However, for field-glued wooden beams, such spliced ​​wooden beams are very demanding on the conditions of the construction site, requiring factory maintenance and bonding techniques

For spliced ​​wooden beams connected by hardware connecting plates and bolts, the disadvantages are weak tensile strength, brittleness, serious damage under tension, easy splitting of wood, certain safety hazards, and poor structural appearance, which can no longer meet the needs of the market.

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