Connection of timber members

Ivan Kuznetsov,Linur Gimranov

doi:10.1088/1757-899x/890/1/012040

Abstract

Expanding applicability of timber structures, especially from engineered wood is a task of outmost importance due to wood’s replenishment properties as a material. This paper review new modification of mentioned above connections in lattice timber structures. This connection is comprised of timber members with longitudinal slot in combination with lateral round holes and steel plate with laterally welded-in rods which is inserted into the slot from the side of the timber member in direction of the holes axis. The distance between holes is equal to the distance between welded-in rods. Welded-in rods essentially work as dowels providing mandatory installation of tightening bolts laterally to the plane in which steel plate is located. The bolt holes in the plate can be larger or equal to the bolt diameter. This research focused primarily on the development of calculation methods for the described connection validated by finite element models analysis and experimental data.

Highlights

The role of timber structures in reduction of emission footprint of building industry is shown in several studies [1], [2], [3] Structural steel as a recycled material belongs to the category of sustainable materials
One of the restrictions regarding to the timber structures is a required special designing approach to connections of structural members made of it.[4], Load transfer, in most cases of joints between structural members for the structures assembled on the construction site, is provided by bolt or dowel connections.[5], [9] Widening field of applicability of timber structures and increased cross-section areas of structural members made of engineering wood require larger amount of load to be transferred through joints new paths and design solutions of the joints between structural members are being developed.[6],[8] The designing and development stages of high load timber joints are very cost intensive tasks with results having very narrow scope of possible applicability beyond certain structural shape or types of structures
Finite element models analysis (FEMA) validated by small scale experiments can contribute to the lowering cost of designing and developments stages

Summary

Introduction

The role of timber structures in reduction of emission footprint of building industry is shown in several studies [1], [2], [3] Structural steel as a recycled material belongs to the category of sustainable materials. Timber as a structural material, especially in its revived form as engineering wood, gains more traction in the field of sustainable building structures. One of the restrictions regarding to the timber structures is a required special designing approach to connections of structural members made of it.[4], Load transfer, in most cases of joints between structural members for the structures assembled on the construction site, is provided by bolt or dowel connections.[5], [9] Widening field of applicability of timber structures and increased cross-section areas of structural members made of engineering wood require larger amount of load to be transferred through joints new paths and design solutions of the joints between structural members are being developed.[6],[8] The designing and development stages of high load timber joints are very cost intensive tasks with results having very narrow scope of possible applicability beyond certain structural shape or types of structures. FEMA coupled with experiment were utilized as main tools in conducting this study as did others in studies [7], [19]

Methods

Results

Conclusion