Investigation of the Bearing Capacity and Deformability of Promising Joints of Wooden Structures Using Composite Materials

One of the actual directions in the study of wooden structures is the determination of the strength characteristics of the nodes and joints of wooden elements using composite materials. These materials allow us to solve the problems of designing wooden structures without the use of rallying, building and reinforcing individual elements. Composite materials do not lead to a significant increase in the dimensions of the nodes and do not damage the appearance of the structures. The use of new high-strength materials significantly increases the service life of the structure and increases reliability. the object of the study is the connection of elements of wooden structures with composite materials based on fiberglass. The type of joints of wooden elements with a composite material based on fiberglass is proposed. The conducted research is aimed at obtaining experimental data to determine the characteristics of CM-joints of composite wooden elements. As part of the study, several series of symmetrical, two-cut samples with different thickness of composite material were considered. The composite material connection was performed by layer-by-layer formation on a wooden structure. The article presents the results of studies of the strength and deformability of the developed compound. Strength characteristics are established, in the form of resistance to the cut of the composite material along the seam of bonding in the joint, resistance to the separation of the composite material from the base, chipping of the composite material. The characteristics of deformability of KM-joints during short-term machine tests with linearly increasing load in samples are established. Conclusions. The conducted research has shown that the strength characteristics of the tested compounds correspond to the calculated load-bearing capacity.

A.R. TUSNIN, Doctor of Sciences (Engineering), Professor, Head of the Department of Metal and Wooden Structures (This email address is being protected from spambots. You need JavaScript enabled to view it.),
N.V. LINKOV, Candidate of Sciences (Engineering), Associate Professor of the Department of Metal and Wooden Structures (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.A. KLYUKIN, Engineer, Senior Lecturer at the Department of Metal and Wooden Structures (This email address is being protected from spambots. You need JavaScript enabled to view it.)

National Research Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)

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