Experimental Study of Brick Walls with Opening Strengthened During Construction by Using Steel Wire Mesh Embedded Into Bed Joint Mortar between Bricks
Journal Title: International Journal of Engineering and Science Invention - Year 2017, Vol 6, Issue 5
Abstract
Failure of brick walls structures can be caused by structural weakness or overloading, dynamic vibrations, settlement, and in-plane and out-of-plane deformations. In addition, the appearance of openings in brick walls has an effect on the load capacity and cracking regime after construction under working load. For these reasons, there is a need for strengthening brick walls with openings during construction. In the present study, a total of five brick wall specimens having a wall dimensions (85*65) cm and thickness (10) cm with square opening (25*25) cm were tested. The brick wall specimens were divided into two groups as follows, Group one consisted of one wall with R.C lintel 35 cm length as a control wall .Group two consisted of four strengthened specimens by number of horizontal plies of steel wire mesh (one, two three and four plies) embedded into bed joint mortar. All specimens were tested under static loads in regular increments from zero up to the crack load then failure load. In addition, wall deformations have been measured by LVDT. The obtained test results show that using one ply of horizontal steel wire mesh embedded into bed joint mortar gives an increase in the load carrying capacity up to 117 % from the control ultimate capacity. Using two plies of horizontal steel wire mesh embedded into bed joint mortar gives an increase in the load carrying capacity up to 136 % from the control ultimate capacity. However, using three plies of horizontal steel wire mesh embedded into bed joint mortar gives an increase in the load carrying capacity up to 156 % from the control ultimate capacity. In addition, using four plies of horizontal steel wire mesh embedded into bed joint mortar gives an increase in the load carrying capacity up to 190 % from the control ultimate capacity. The results suggest that increasing number of horizontal plies of steel wire mesh into bed joint mortar increases significantly the load carrying capacity of wall. In addition, ductility has been significantly increased. Thus, it was found that strengthening with this technique is durable, economic and easy to apply.
Authors and Affiliations
Elsamny M. K. , Ezz-Eldeen H. A. , Elmokrany A. A.
Keywords
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