• Analysis Aid Preparation for Self Supporting Fixed Ended Helical Stairs 

  Gizaw, Yonathan (2015)

  As amazing its appearance is, spiral stair has complex geometric configuration. As a result of this complexity, its analysis is challenging. And our Building Code of Standard doesn’t have analysis aid for these special ...
• A Study on the Effects of Openings on Seismic Behavior of Reinforced Concrete Shear Walls 

  Kiross, Yohannes (Addis Ababa University, 2017-03)

  The objective of this study was to better understand the effects of size and location of openings on seismic behavior of reinforced concrete shear walls using response spectrum analysis and with the help of ETABS15.2.2, ...
• “Tension Property of Concrete and its Role in the Immediate Deflection of Reinforced Concrete Beam under Serviceability Limit State” 

  Tadesse, Yisshak (Addis Ababa University, 2015-12)

  Modeling the behavior of cracked tensile concrete is a complicated issue. Due to bond with reinforcement, the concrete between cracks carries a certain amount of tensile force normal to the cracked plane. The concrete ...
• Design Charts for Reinforced Concrete Bridges 

  Gebre, Yisihak (Addis Ababa University, 2015-07)

  Design of bridge structure is a complex engineering problem, which includes design of bridge systems, selection of design manuals and standards. During design process of bridges, an internationally accepted manuals and ...
• Seismic Assesment of Simply Supported Vs Continuous Concrete Girder Bridges (Case Study of Selected Bridges) 

  Zewdu, Yigrem (Addis Ababa University, 2013-06)

  Seismic evaluations of typical concrete girder bridges are conducted for two existing simply supported bridges, which are common to the Ethiopian highway construction, and for their counterpart continuous girder bridges. ...
• Comparative Evaluation of Concentrically Bracing System for Lateral Loads on Medium Rise Steel Building Structures 

  Mekonnen, Yeshambel (Addis Ababa University, 2015-02)

  Lateral load resisting systems are structural elements providing basic lateral strength and stiffness, without which the structure would be laterally unstable. The unstable nature of structures is solved by appropriate ...
• Investigation on the Static Modulus of Elasticity of Concrete in Compression Made Using Locally Available Coarse Aggregates 

  Fufa, Yealemnegus (Addis Ababa University, 2017-03)

  The primary objective of this study was to determine the static moduli of elasticity of concrete mixes made of three different coarse aggregate types found locally and to compare the results of the study with the recommended ...
• FEM Based Advanced Torsion Analysis of Curved Steel Box Girder Bridges 

  Enyew, Wubie (Addis Ababa University, 2014-01)

  Due to efficient dissemination of congested traffic, economic considerations, and aesthetic desirability, horizontally curved steel box girder bridges are usually best preferred structural unites irrespective of their ...
• Comparative Study on Fundamental Period of Reinforced Concrete Buildings 

  Worabo, Utino (Addis Ababa University, 2017-03)

  Fundamental natural period of vibration T of the building is an important parameter for evaluation of seismic base shear. Empirical equations given in current building codes like ESEN 1998-1:2015, EC8 (EN 1998-1: 2004), ...
• Underpass Pedestrian Crossing Connecting the Two Campuses of Addis Ababa Institute of Technology 

  Beshah, Tiruye (Addis Ababa University, 2013-09)

  Road traffic accident is becoming the major problem globally. Our country is also facing the problem currently with increasing trend of the magnitude of the problem from time to time. Addis Ababa, the capital of the nation ...
• “Investigation of Effective Length Method For Slender Reinforced Concrete Column Having Linearly Varying Cross-Section” 

  Woldegebreal, Tinsae (Addis Ababa University, 2013-09)

  Effective length is the length of the equivalent pin ended column, which has the same elastic buckling load as the actual column. The effective length method has been used for many decades as the basis for the design of ...
• Software Development for Design of Slab and T-Girder Reinforced Concrete Bridges 

  Tesfaye, Tewodros (Addis Ababa University, 2009-12)

  In bridge design, engineers strive to plan an economical structure that will safely transmit loads to the ground without collapsing or deforming excessively. Since it is difficult to predict the exact loading and ...
• Assessing Code Based Shear Prediction Values of Reinforced Concrete Beams Using Modified Compression Field Theory 

  Tsegaye, Surafel (Addis Ababa University, 2016-12)

  Though different researches have been conducted so far on shear strength of reinforced concrete beam, it is yet not definite to predict it in accurate manner. As a result, different design codes use different empirical ...
• Influence of Coupled Shear Wall Components on Structural Behaviour under Dynamic Loads 

  Eshetu, Sosena (Addis Ababa University, 2017-06)

  The growth of population density and shortage of land in urban areas are two major problems for all developing countries including Ethiopia. In order to mitigate these two problems, the designers resort to high-rise ...
• Simplified Analysis and Design Considerations of Precast Joist in One Way Ribbed Slab 

  Asrat, Sophonyas (Addis Ababa University, 2013-06)

  The design and analysis of a structural member requires the understanding of the possible loads that act on the system in the life span of the structure. For this reason, the stage of construction of precast joist is ...
• Effect of Clayey Silt Content on Concrete Stregth 

  Haileslassie, Solomon (Addis Ababa University, 2014-03)

  In the present day construction industry in Ethiopia, concrete has emerged as the most common building material. Hence careful consideration must be given to factors that affect its strength. One of the factors affecting ...
• Corrosion of Steel Reinforcement in Reinforced Concrete Structures – Effect and Methods of Repair 

  Ejigu, Soliyana (Addis Ababa University, 2015-03)

  Reinforced concrete structures have the potential to be very durable and capable of withstanding a diversity of adverse environmental conditions. However, failures in structures still occur as a result of variety of defects ...
• Economic Design of Steel Concrete Composite Bridges 

  Melaku, Sintayehu (Addis Ababa University, 2015-03)

  n the current world, one of the most common bridge construction technologies is steel concrete composite bridge. The primary advantages of this technology are: their economical nature and related to construction time. Due ...
• Effects of Floor Diaphragm Flexibility in Reinforced Concrete Structures and Code Provision 

  Abera, Sintayehu (Addis Ababa University, 2015-09)

  All the seismic codes generally accept that in most cases the floor diaphragms may be modeled as fully rigid without in-plane deformability for reinforced concrete structures. Even though a rigid floor diaphragm is a good ...
• Presented in Partial Fulfillment of the Requirements for the Degree of Master of Science (Structural Engineering) 

  Tsegaye, Sinit (Addis Ababa University, 2014-12)

  In recent years, the shortage and value of land in terms of cost and asset has increased the need to use land effectively and efficiently. This is more significant in High-Rise multi story buildings where small unusable ...

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