Stability of ancient masonry towers: Stress redistribution due to drying, carbonation, and creep

被引：19
|
作者：
Ferretti, Daniele
Bazant, Zdenek P.
机构：
[1] Northwestern Univ, CEE, Evanston, IL 60208 USA
[2] Univ Parma, I-43100 Parma, Italy
来源：
CEMENT AND CONCRETE RESEARCH | 2006年 / 36卷 / 07期
基金：
美国国家科学基金会;
关键词：
creep; humidity; diffusion; long-temi performance; tower;
D O I：
10.1016/j.cemconres.2006.03.014
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Extending the analysis of the evolution of pore humidity and carbonation presented in a preceding paper by Ferretti and Bazant, this paper analyzes the redistribution in time of vertical normal stresses across the multiple-leaf wall of ancient towers, using the example of collapsed Pavia Tower. It is shown that stress redistribution due to nonuniform shrinkage and nonuniform creep across the wall, including the additional redistribution due to cracking, produces in the masonry cladding of the wall very large compressive stresses that reach, after centuries, the level of compression strength of the cladding. (C) 2006 Elsevier Ltd. All rights reserved.
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页码：1389 / 1398
页数：10
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