Abstract

Cross-laminated timber (CLT) is well known as an interesting technical and economical product for modern wood structures. The use of CLT for modern construction industry has become increasingly popular in particular for residential timber buildings. Analyzing the CLT behavior in high thermal environment has attracted scholars’ attention. Thermal environment greatly influences the CLT properties and load bearing capacity of CLT, and the investigation can form the basis for predicting the structural response of such CLT-based structures. In the present work, the finite element method (FEM) is employed to analyze the thermal influence on the deformation of CLT. Furthermore, several factors were taken into consideration, including board layer number, hole conformation, and hole position, respectively. In order to determine the influence, several numerical models for different calculation were established. The calculation process was validated by comparing with published data. The performance is quantified by demonstrating the temperature distribution and structural deformation.

Highlights

  • Wood possesses excellent mechanical and physical properties which is well known as an environmentally sustainable building material with a pleasant appearance and, is suitable for residential buildings, public buildings, and industrial buildings [1, 2]

  • E revival of timber is largely beneficial from the development of the innovative laminar timber product crosslaminated timber (CLT). is timber product commonly composed of an uncertain number of layers, each made of boards placed side-by-side, which were arranged crosswise to each other at an angle of 90° [5]

  • CLT can be constructed into large solid timber panels, and this allows the transfer of high vertical loads and guarantees a high building stiffness and robustness

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Summary

Introduction

Wood possesses excellent mechanical and physical properties which is well known as an environmentally sustainable building material with a pleasant appearance and, is suitable for residential buildings, public buildings, and industrial buildings [1, 2]. E finite element method was employed, and the influence of board layer number, hole dimension, hole conformation, and hole position on the CLT structural performance was taken into account. A five layer CLT plate was analyzed, and the thickness direction temperature distribution at point A (x 218.75, y 737.5) was plotted (Figure 1).

Results
Conclusion

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