Numerical analysis of behaviour of cross laminated timber (CLT) in blast loading

3rd International Conference on Innovative Materials, Structures and Technologies

Šliseris, J.^1 ; Gaile, L.^1 ; Pakrasti, L.^1

Riga Technical University, Kau street 1, LV-1658, Latvia^1

关键词: Architectural systems;    Classical beam theory;    Composite damage;    Cross laminated;    Duration time;    Explicit dynamics;    Non linear computations;    Structural robustness;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/251/1/012105/pdf
DOI  :  10.1088/1757-899X/251/1/012105

来源: IOP

【 摘 要 】

A non-linear computation model for CLT wall element that includes explicit dynamics and composite damage constitutive model was developed. The numerical model was compared with classical beam theory and it turned out that shear wood layer has significant shear deformations that must be taken into account when designing CLT. It turned out that impulse duration time has a major effect on the strength of CLT. Special attention must be payed when designing CLT wall, window and door architectural system in order to guarantee the robustness of structure. The proposed numerical modelling framework can be used when designing CLT buildings that can be affected by blast loading, whilst structural robustness must be guaranteed.