Behavior of Unbounded Post- tensioned Masonry Walls

This book reports on a comprehensive analytical, experimental and numerical study on the flexural response of post-tensioned masonry walls under in-plane loads. It explores an important mechanism in this new generation of structural walls, called "Self-centering". This mechanism can reduce residual drifts and structural damage during earthquake ground motion, and is particularly favorable for structures which are designed for immediate occupancy performance levels. The book reports on the development and verification of a finite element model of post-tensioned masonry walls. It describes a detailed parametric study to predict the strength of post-tensioned masonry walls. New design methodologies and expressions are developed to predict the flexural strength and force-displacement response of post-tensioned masonry. Experimental study is carried out to better understand the behavior of post-tensioned masonry walls and also to evaluate the accuracy of the proposed design procedureand expressions. The book also includes an introduction to current research on unbounded post-tensioned masonry walls, together with an extensive analysis of previously published test results.

Contenu
Introduction.- Literature Review.- Strength and seismic performance factors of post-tensioned masonry walls.- Effect of dimensions on the compressive strength of concrete masonry prisms.- Flexural strength prediction of unbonded post-tensioned masonry walls.- Simplified approach to predict the flexural strength of unbonded post-tensioned masonry walls.- Experimental investigation of unbonded post-tensioned masonry walls.- Summary and conclusions.- Summary and conclusions.