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基于贝叶斯方法的历史建筑砌体抗压强度推定

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成果类型:
期刊论文
论文标题(英文):
Inference for Compressive Strength of Masonry in Historical Buildings Based on Bayesian Method
作者:
彭斌;汪澜涯;李翔;付想平
作者机构:
[汪澜涯; 彭斌; 付想平] School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
[李翔] Department of Building Engineering, Tongji University, Shanghai, China
语种:
中文
关键词:
历史建筑;砌体;抗压强度;贝叶斯方法
关键词(英文):
Bayesian method;Compressive strength;Historical building;Masonry
期刊:
建筑材料学报
期刊(英文):
Journal of Building Materials
ISSN:
1007-9629
年:
2015
卷:
18
期:
5
页码:
778-783
基金类别:
国家自然科学基金资助项目(51208300)
机构署名:
本校为其他机构
院系归属:
理学院
摘要:
基于贝叶斯方法获得历史建筑中砌体材料抗压强度的合理推定值.在实测样本有限且离散的条件下,引入可靠的先验信息,并通过构造合理的似然函数,将间接法和直接法的实测样本信息相结合,重构砖抗压强度、砂浆抗压强度以及砌体抗压强度推定误差的概率密度模型(PDF).在推定砌体抗压强度的同时,定量表示推定结果的不确定性.所提方法适用于现场实测信息量不足时历史建筑砌体抗压强度的推定.
摘要(英文):
Compressive strength of masonry in historical buildings was evaluated based on Bayesian method. The limited information and divergent measured information were incorporated with reliable prior information, and information of direct measured strength samples and information of indirect measured strength samples were incorporated through an appropriate likelihood function. Probability density functions (PDFs) for compressive strength of brick, compressive strength of mortar, and compressive strength evaluation error of masonry were established. Compressive strength of masonry was inferred and it...

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