Design Methods for Load-bearing Elements from Crosslaminated Timber

2nd International Conference on Innovative Materials, Structures and Technologies

Vilguts, A.^1 ; Serdjuks, D.^1 ; Goremikins, V.^2

Riga Technical University, Faculty of Civil Engineering, Institute of Structural Engineering and Reconstruction, Kalku Str.1, Riga

LV-1048, Latvia^1

Czech Technical University in Prague, Department of Steel and Timber Structures, Thákurova 7, Prague

CZ16629, Czech Republic^2

关键词: Distributed loads;    Engineering calculation;    Load bearing walls;    Load-bearing elements;    Strength and stiffness;    Timber buildings;    Transformed sections;    Vertical displacements;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/96/1/012054/pdf
DOI  :  10.1088/1757-899X/96/1/012054

来源: IOP

【 摘 要 】

Cross-laminated timber is an environmentally friendly material, which possesses a decreased level of anisotropy in comparison with the solid and glued timber. Cross-laminated timber could be used for load-bearing walls and slabs of multi-storey timber buildings as well as decking structures of pedestrian and road bridges. Design methods of cross-laminated timber elements subjected to bending and compression with bending were considered. The presented methods were experimentally validated and verified by FEM. Two cross-laminated timber slabs were tested at the action of static load. Pine wood was chosen as a board's material. Freely supported beam with the span equal to 1.9 m, which was loaded by the uniformly distributed load, was a design scheme of the considered plates. The width of the plates was equal to 1 m. The considered cross-laminated timber plates were analysed by FEM method. The comparison of stresses acting in the edge fibres of the plate and the maximum vertical displacements shows that both considered methods can be used for engineering calculations. The difference between the results obtained experimentally and analytically is within the limits from 2 to 31%. The difference in results obtained by effective strength and stiffness and transformed sections methods was not significant.