Date of Award

10-5-2017

Degree Type

Dissertation

Degree Name

Ph.D.

Department

Civil and Environmental Engineering

First Advisor

Das, Sreekanta

Keywords

concrete block, digital image correlation, masonry beams, masonry construction Pattern

Abstract

This dissertation presents the experimental results of laboratory testing conducted on full-scale masonry beams that are constructed in stack pattern and running bond using different block size and grout strength. The first study compares effect of grout strength and block size on the structural behaviour of masonry beams. It was found that the grout strength has the largest effect on the maximum load or moment carrying capacity of a masonry beam. It was also found that The effect of the block unit size on the load carrying capacity of masonry beam is negligible. The second study was on the effect of bonding pattern on structural performance of masonry beams. It was found that there were no considerable differences in structural performances and failure modes obtained from these two beam construction. The last study is one on the experimental and field performance of PP band retrofitted URM wall. It was found that retrofitting of URM wall using PP band enhances the ductility capacity and energy absorption capacity almost 3 and 2 times, respectively, in comparison to unreinforced masonry wall. The non-contact optical metrology called digital image correlation (DIC) successfully implemented throughout the study to extracts full-field deformation and mechanical properties of various construction material. Hence, this study concluded that the stack pattern construction can be used as the way the running bond construction are currently used.

Available for download on Wednesday, October 17, 2018

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