Double-bolt-sphere joint system for laminated wood space structure

Abstract

The invention provides a double-bolt-sphere joint system for a laminated wood space structure, and belongs to the technical field of building structural members. The double-bolt-sphere joint system comprises a plurality of laminated wood components, double bolt spheres, a plurality of groups of steel filling plates and a plurality of bolts. The double bolt spheres are detachably connected with themultiple groups of steel filling plates, and each group of steel filling plates comprises two steel filling plates; and the two steel filling plates of each group of steel filling plates are detachably connected with one laminated wood component. The double-bolt-sphere joint system can be used for a fabricated large-span laminated wood structure, axial force, shearing force and bending moment canbe transmitted, prestress is applied to joints, transverse grain stress generated in the laminated wood components can be counteracted, and laminated wood transverse grain cracking is avoided; and the joints are mature in machining process, easy and convenient to install and simple in calculation method, and the reliability of laminated wood structure joint connection is improved.

Description

technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a double-bolt ball joint system for glued wood space structures. Background technique [0002] At present, there are various forms of joint connection of long-span glued laminated timber structures, such as bolted plate joints, hub joints, planted bar joints, etc., all of which have common deficiencies. Under the action of temperature and humidity, the joint domain glulam is prone to transverse grain cracking, resulting in a decrease in bearing capacity or even damage. Contents of the invention [0003] In view of this, the present invention aims to propose a double-bolt ball joint system for glulam space structures, which is a joint system for interconnecting multiple components of glulam space structures. The joint can transmit axial force, Shear force and bending moment, while avoiding cross-grain cracking of glulam members in the joint area. The ap...

AI Technical Summary

Problems solved by technology

[0002] At present, there are various forms of joint connection of long-span glued laminated timber structures, such as bolted plate joints, hub joints, planted bar joints, etc., all of which have common deficiencies. Under the action of temperature and humidity, the cross-grain cracking phenomenon is easy to occur in the joint domain glulam, causing the bearing capacity to decrease, or even damage

Images