t (CENG5281) submitted as a partial fulfillment of the requirements for the Degree of Bachelor Science in Civil Engineering

Abstract

This project deals about the structural analysis and design of a G+5 mixed used (Commercial) building considering all the external and internal effects according to (ES EN Design of Concrete Structures 2015), The project is located in Addis Ababa. The plan area covered by 520 and total building height is 18m in the first section concern about the background of the project; overall the objective of this project is to carry out a complete structural analysis and design of G+5 Commercial building. The structural design of the commercial building involves design of floor slabs, stairs, beams, columns, foundation and analysis of frames. Live load and dead load analysis is made according to ES-EN 1992:2015. After the minimum depth of slab for serviceability limit state of deflection were determined, the slabs were designed for partition load, floor finish using self-weight load and live loads according to ES-EN 1992:2015 The slab is designed according to ES-EN 1992:2015. Stairs and landings were designed as one-way slab. For the analysis of frames, the restrained conditions at the foundation level are assumed fixed. Loads acting on beams from slab reactions and walls directly resting on beams were added to self-weight of beams to find total load acting on beams. These were inserted and analyzed using ETABS.2017.v15.0.3. To simplify the design procedure calculation is done using an Excel spread sheets. The size of the footing was determined from the bearing capacity of the soil; the thickness of the footing is determined from punching and wide beam shear. Finally the footing was designed for flexure using design tables