Abstract: When the installation of cables and pipelines needs to go across rivers, bridges are usually adopted to support the cables and pipelines for crossing the rivers. The measure can make full use of the space resources and have no effect on the flow pattern of rivers. For this reason, analysis on the structural-type design of a large-span steel truss bridge specially used for cables has been performed. The numerical results indicate that the... More

Abstract: Road constructing in Ethiopia is increasingly in demand to meet its medium and long term development programs. Most internal roads of Oromia city/town are cobblestone and gravel. Some portions along the alignment proposed and existing roads traversed low resistance of the subgrade that affect the stability of the upper layers of cobblestones. Structural failure is observed on cobblestone roads, and it would be constructed with good quality or... More

Abstract: Due to a high construction material cost in Ethiopia, it is difficult to afford a shelter by most our peoples. The Hydra form block (HFB) has been identified as low-cost building material with its potential and possibility to reverse the housing problem. Laboratory tests were conducted on Mettu, Nopa, Gore, and Hurumu areas soil. Using hydra form machine with average mold size of 29*14*10cm, hydra form blocks were casted with the three... More

Abstract: Tensile strength of concrete were examined on its partial replacement of cement and sand using ground granulated blast furnace and quarry dust, the study examines its behaviour at different dimensions, this is to monitor the variation effect of these parameters on the growth rates of tensile to the optimum curing age, these includes non linear conditions of tensile state, non-elastic and its brittle behaviour at all times as it express zero... More

Abstract: The building construction throughout world faces the defects from normal to heavy and destructive like cracks and fractures which cause damages and eventually collapses to heavy life losses alongside economical and financial. The cracks like structures are found in wall and columns also. For the aim of the study, the international experts have classified the minimum allowable standards of those defects which can not be harmful to buildings and... More