Finite Element Analysis of the Charring Rate of Cross-Laminated Timber Floor

被引：0
|
作者：
Zhang J. [1 ]
Chen H. [1 ]
Bai Y. [1 ]
Liao J. [2 ]
机构：
[1] Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing
[2] Organizing Committee of Nanning New and Hi-Tech Industry Development Zone, Nanning
来源：
Tongji Daxue Xuebao/Journal of Tongji University | 2020年 / 48卷 / 08期
关键词：
Adhesive; Charring rate; Cross-laminated timber(CLT); Delamination; Finite element;
D O I：
10.11908/j.issn.0253-374x.19467
中图分类号：
学科分类号：
摘要：
In order to study the finite element analysis method of charring rate of cross-laminated timber (CLT) floor, three groups of domestic CLT floor fire experiments were conducted under ISO834 standard temperature rising conditions. Tensile and shear tests of the adhesive layer were simulated by using the finite element method, and two kinds of finite element models of charring rate of CLT floor were established: the finite element model without considering the delamination of the laminate and that considering the delamination of the laminate. The temperature-time curve and charring depth (rate) curve obtained from the test data were compared with the simulation results of the finite element model. The results show that the longer the fire time is, the higher the charring rate is. Besides, it is feasible to simulate the adhesive in the CLT plate by using cohesive element. Moreover, the finite element simulation results of the carbonization rate considering the delamination of the laminates agree well with the results of the carbonization rate obtained by the test. © 2020, Editorial Department of Journal of Tongji University. All right reserved.
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页码：1122 / 1131
页数：9
相关论文
共 25 条
  • [1] XIONG Haibei, SONG Yijie, DAI Songhua, Et al., Prefabricated CLT panel building from model to construction, Building Structure, 48, 10, (2018)
  • [2] FRANGI A, FONTANA M, KNOBLOCH M, Et al., Fire behaviour of cross-laminated solid timber panels, Fire Safety Science, 9, (2008)
  • [3] BUCHANAN A H, ABU A., Structural design for fire safety, (2017)
  • [4] DRYSDALE D., An introduction to fire dynamics, Journal of fire sciences, 30, 5, (2012)
  • [5] HASBURGH L, BOURNE K, PERALTA P, Et al., Effect of adhesives and ply configuration on the performance of southern pine cross-laminated timber, Proceedings of the World Conference on Timber Engineering (WCTE 2016), (2016)
  • [6] SCHMID J, KONIG J, KOHLER J., Fire-exposed cross-laminated timber-modelling and tests, (2014)
  • [7] WANG Zhiqiang, FU Hongmei, DAI Xiaohan, Et al., Experiment study on mechanical properties of cross-laminated timber with different tree species wood, Journal of Central South University of Forestry & Technology, 34, 12, (2014)
  • [8] Method for determination of the density of wood: GB/T 1933-2009, (2009)
  • [9] Method for determination of the moisture content of wood: GB/T 1931-2009, (2009)
  • [10] Method of testing in compressive strength parallel to grain of wood: GB/T 1935-2009, (2009)
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