Ultimate Limit State Assessment of Timber Bolt Connection Subjected to Double Unequal Shears

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Musilek, Josef^1 ; Plachy, Jan^1

Institute of Technology and Business in eské Budjovice, Department of Civil Engineering, Okruní 517/10, eské Budjovice

370 01, Czech Republic^1

关键词: Bolt connection;    Design standard;    Double-shear;    Economic design;    Reliability assessments;    Structural engineer;    Ultimate limit state;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/2/022083/pdf
DOI  :  10.1088/1757-899X/245/2/022083

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Nowadays the problems occur when a structure engineer need to assess the ultimate limit state of timber bolt connection which is subjected to double unequal shears. This assessment of ultimate limit state shows the reliability of these connections. In assessing the reliability of this connection in ultimate limit state is a problem, because the formulas and equations that are currently available in design standards and available literature, describing only connections loaded symmetrically - this mean that they describe the timber bolt connection subjected to double equal shears. This fact causes problems because structural engineers have no available support, according to which they could assess reliability of the connection in terms of the ultimate limit state. They must therefore often report following an asymmetrically loaded connections carry about using formulas, which are primarily designed for checking connections loaded symmetrically. This leads logically to the fact that it is not respected by the actual behaviour of the connection in the ultimate limit state. Formulas derived in this paper provide the possibility to assess the ultimate limit state for such connection. The formulas derived in this article allow to carry out a reliability assessment of the ultimate limit state of timber bolt connection subjected to double shear. The using of the formulas derived in this paper leads to better description of the behaviour of this type of connection and also to the more economic design. An example of using these derived formulas is shown. There is shown in this example, how to assess the reliability of timber bolt connection subjected to double unequal shears in terms of ultimate limit states.