[1]龚迎春,叶琦,武国芳,等. 基于蒙特卡洛模拟预测正交胶合木（CLT）顺纹抗压强度[J].西北林学院学报,2020,35(6):234-237.[doi:10.3969/j.issn.1001-7461.2020.06.32]
　GONG Ying-chun,YE Qi,WU Guo-fang,et al. Prediction of the Compressive Strength of Cross-laminated Timber Based on Monte Carlo Simulation[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2020,35(6):234-237.[doi:10.3969/j.issn.1001-7461.2020.06.32]
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 基于蒙特卡洛模拟预测正交胶合木（CLT）顺纹抗压强度()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第35卷
期数:
2020年第6期
页码:
234-237
栏目:
出版日期:
2020-11-30

文章信息/Info

Title:
 Prediction of the Compressive Strength of Cross-laminated Timber Based on Monte Carlo Simulation
文章编号:
1001-7461(2020)06-0234-04
作者:
 龚迎春1; 叶琦2; 武国芳3; 任海青1*; 管成2
 （1.中国林科院 林业新技术研究所，北京 100091；2.北京林业大学，北京 100083；3.中国林科院 木材工业研究所，北京 100091）
Author(s):
 GONG Ying-chun1; YE Qi2; WU Guo-fang3; REN Hai-qing1*; GUAN Cheng2
 (1.Research Institute of Forestry New Technology,Chinese Academy of Forestry,Beijing 100091,China; 2.Beijing Forestry University,Beijing 100083,China; 3.Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,China)
关键词:
 ; 正交胶合木; 顺纹抗压强度; 概率分布; 蒙特卡洛模拟
Keywords:
 ; cross-laminated timber;  compressive strength parallel to grain;  probability distribution;  Monte Carlo simulation
分类号:
S781.21
DOI:
10.3969/j.issn.1001-7461.2020.06.32
文献标志码:
A
摘要:
 基于《木结构试验方法标准》测试锯材和正交胶合木（CLT）顺纹抗压强度，采用正态分布、对数正态分布、威布尔分布函数进行数据拟合，利用K-S检验判断拟合优度，基于复合层板理论利用蒙特卡洛模拟预测CLT顺纹抗压强度。结果表明，CLT和锯材的顺纹抗压强度平均测试值分别为39.96 MPa和30.41 MPa；采用威布尔分布的拟合优度最高；CLT抗压强度的预测值与实测值相对误差在8%以下，采用蒙特卡洛模拟数据预测CLT顺纹抗压强度平均值和5%分位值的相对误差分别为5.8%和-0.8%，具有更高预测准确性。
Abstract:
 Based on the national standard of China,GB/T 50329-2012“Standard for Test Methods of Timber Structures”,the ultimate compressive strength parallel to grain of lumber and cross-laminated timber (CLT) was tested.The normal distribution,lognormal distribution and Weibull distribution functions were adopted to fit the test results.K-S test was used to determine the most consistent probability distribution.The compressive strength of CLT was predicted by using Monte Carlo simulation method (MCS) based on the composite laminate theory.The study results showed that the values of average compressive strength of CLT and timber were 39.9 MPa and 30.41 MPa,respectively.Weibull distribution had the highest goodness of fit.The relative error between the prediction value and measured value of compressive strength of CLT was under 8.0%.There was higher predictive accuracy of CLT’s compressive strength by using MCS method,whose relative error of average value and 5% percentile value were 5.8% and -0.8%,respectively.

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备注/Memo

备注/Memo:
 收稿日期：2020-03-18修回日期：2020-04-20
基金项目：中央级公益性科研院所基本科研业务费专项资金“正交胶合木墙体稳定性能研”(CAFYBB2018SY032)；国家自然科学基金“正交胶合木构件受压失稳机理及计算方法研究”(51808546)。
作者简介：龚迎春，博士，助理研究员。研究方向：木材力学与木结构。E-mail：gongyingchun@caf.ac.cn
*通信作者：任海青，博士生导师，研究员。研究方向：木材力学与木结构。E-mail：renhq@caf.ac.cn
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