• Multi-objective Optimization of Post-tensioned Pedestrian Bridge 

  Metasebia, Dabi (Addis Ababa University, 2021-09)

  Multi-objective design optimization of post-tensioned box girder pedestrian bridge is presented in this study. The proposed design optimization incorporates some behavior and side constraints specified by the AASHTO ...
• Use of Waste Paper Sludge Ash as Partial Replacement of Cement in Mortar 

  Bonsa, Teshome (Addis Ababa University, 2022-06)

  Various industrial wastes were employed as supplemental cementitious materials to save the environment from filling with non-biodegradable wastes and to limit the consumption of existing limestone. Waste paper sludge ...
• The Role of Bond in Shear Transfer of Shear Critical Reinforced Concrete Slender Beams 

  Weyneshet, Getachew (Addis Ababa University, 2022-01)

  Due to its complex nature, the effect of bond loss between concrete and longitudinal bar on the shear transfer mechanism lacks a complete framework. So far, all ranges of bond losses are considered as a total bond loss, ...
• An Experimental Investigation on the Effect and Mechanism of Side Cover Spalling for Slender Beams Subjected to Shear 

  Kalkidan, Tesfaye (Addis Ababa University, 2021-05)

  Reinforced concrete members should have an adequate safety margin against shear failure, which happens to be brittle and sudden. A lot of variables contribute to the shear resistance of beams, and to predict the resistance ...
• Application of Machine Learning Methods for Shear Capacity of RC Beams 

  Birhane, Gemeda (Addis Ababa University, 2021-12)

  Accurate determination of the capacity of reinforced concrete (RC) beams in shear remains a demanding problem due to its complex failure mechanism and the nonlinear relationship between different factors influencing the ...
• Experimental Investigation on the Use of Sawdust as Partial Replacement of Sand on Concrete Production 

  Kidist, Assefa (Addis Ababa University, 2022-03)

  Sawdust concrete technology was first introduced in industrialized nations, where it was used as a flooring and wall system. Sawdust and clay have been used to build houses in the West Indies. Without any prior treatment, ...
• Partial Replacement of Cement With Marble and Ceramic Waste Powders in Normal Strength Concrete 

  Rihanna, Nuru (Addis Ababa University, 2022-01)

  Production of cement is hazardous to the environment. Recycling wastes has been one of the most influential aspect affecting global conditions of the world. Fair amount of work has been done on the utilization of the wastes ...
• Experimental Investigation of the Effect of Steel Slag Aggregate on the Bond Strength of Reinforced Concrete Member 

  Melkam, Gubay (Addis Ababa University, 2022-01)

  The demand of concrete has increased due to expand of the construction industry. To protect the natural concrete making materials and to sustain the environment, reused of waste products as ingredients of concrete is ...
• Analytical Investigation of Composite Column And RC Beam Joint With Integrated Joint Connections 

  Mahlet, Wondwosen (Addis Ababa University, 2022-01)

  Hybrid structural frame systems, which combine the use of reinforced concrete and steel, are becoming a viable solution for high-rise buildings. But like all innovative solutions, this comes with the problem of connecting ...
• Study on the Façade Detailing for Wind Load 

  Getachew, Melese (Addis Ababa University, 2020-07)

  Building facades are the first aesthetic characteristic that distinguishes one structure from another. Its unique appearance is frequently the subject of trouble attracting. Façade systems are now widely used for new ...
• Prediction of Shear Capacity of Reinforced Concrete Beam based on Fracture Mechanics 

  Nahom, Kelemu (Addis Ababa University, 2021-11)

  The determination of shear capacity of structural members without shear reinforcement in light of fracture mechanics has been a growing research interest ever since fracture mechanics theory for quasi-brittle materials ...
• Push out Test using Reinforcement Bars as a Shear Connector for Composite System 

  Abel, Tsegaye (Addis Ababa University, 2021-09)

  In steel-concrete composite structures, the shear connectors are mostly used to transfer the longitudinal shear forces between the steel-concrete interfaces or to restrict longitudinal slipping and uplifting at the elements ...
• Parametric Study on the Behavior of Eccentrically Braced Frame Links 

  Abel, Berhanemeskel (Addis Ababa University, 2021-12)

  Eccentrically Braced Frames (EBFs) link’s behavior is affected by their link length, web/flange slenderness, stiffener spacing, stiffener cross-sectional behavior, and the axial load ratio present in the link. Even though ...
• Mix Design for Increasing the Earthquake Resistant of Circular Adobe Buildings 

  Habtamu, Hailemichael (Addis Ababa University, 2021-12)

  Adobe buildings exist in different parts of the world and have been classified as unreinforced masonry structures. The construction technique of adobe is combining unfired clay mud and straw. The bricks are joined together ...
• The Effect of Ground Pumice on the Strength of Normal Concrete 

  Gebeyehu, Ayele (Addis Ababa University, 2021-09)

  Concrete is the most widely used material in today's infrastructure needs all around the world. The production of Portland cement is however expensive, energy intensive, and results in globally significant GHGs emissions. ...
• Investigating the Effect of Parameters on Seismic Performance of I Girder Bridges 

  Kirubel, Arega (Addis Ababa University, 2021)

  One of the major components of transportation systems and networks are bridge structures, and earthquake is one of the natural effects which cause catastrophic damage to bridge structures and leads to the transportation ...
• Study of Steel I Beam with the Trapezoidal Corrugated Versus Flat Web For LTB With Respect To Linear and Non-Linear FEM. 

  Habtamu, Getu (Addis Ababa University, 2021-08)

  Steel beams with corrugated web are widely used because of their high load-carrying capacity and optimized configuration to resist lateral-torsional buckling (LTB). The purpose of this thesis is to provide a comparative ...
• Effects of Loss of Bond on the Shear Behavior of Slender Reinforced Concrete Beams 

  Akililu, Abraham (Addis Ababa University, 2021-09)

  This study investigates the shear behavior of slender reinforced concrete beams, which were fabricated with loss of bond between main longitudinal reinforcement and surrounding concrete. To remove the bond effect, the ...
• Investigating the Effect of Parameters on Seismic Performance of I Girder Bridges 

  Kirubel, Arega (Addis Ababa University, 2021-06)

  One of the major components of transportation systems and networks are bridge structures, and earthquake is one of the natural effects which cause catastrophic damage to bridge structures and leads to the transportation ...
• Effect of Fines Modulus of Crushed Sand on the Mechanical Properties of Concrete. 

  Asres, Teshome (Addis Ababa University, 2021-07)

  This experimental study is to investigate the optimum fineness modulus range of crushed sand to be used in concrete mixes. For compressive strength determination of the hardened concrete, 45 concrete cubes and for flexural ...

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