JIMMA UNIVERSITY SCHOOL OF GRADUATE STUDIES JIMMA INSTITUTE OF TECHNOLOGY FACULTY OF CIVIL AND ENVIRONMENTAL ENGINEERING STRUCTURAL ENGINEERING STREAM Comparative Study on Lateral Load Response of Steel Frame Structure with Different Bracing System A Thesis Submitted to the School of Graduate Studies of Jimma University in Partial Fulfillment of the Requirements for the Degree of Master of Science in Structural Engineering By Habtamu Nigussie October, 2019 Jimma, Ethiopia