1 AIT Asian Institute of Technology

Impact of reinforcement over design on the seismic performance of RC buildings

AuthorSupamon Wongpiyaboworn
NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology
PublisherAsian Institute of Technology
AbstractMore reinforcement than required for strength is one source of overstrength. The increasing reinforcement ratio has effect on increasing structural stiffness. Therefore, the reinforced concrete shear wall frame structure with various reinforcement ratios in members was determined through nonlinear time history analysis. The using one earthquake ground motion is applied for both directions (X and Y direction) simultaneously. This building is of twenty stories above ground level and three basements. There are seven cases which are normalreinforcement ratio, low and high reinforcement ratio in shear walls cases, low and high reinforcement ratio in beams cases and low and high reinforcement ratio in columns cases are analyzed. The performance of building is investigated in term of maximum roof displacement, inter-story drift, maximum base shear, maximum base moment, flexural deformation capacity and shears capacity in beams and column. Overall performance is generally good. The drift is within the acceptable range, specified in the performance criteria. For flexural responses, almost all the members are within the acceptable limits, except beams and columns that are at top part of the building seem to be inadequate capacity. In addition, in term of shear capacity, almost all of the members have sufficient shear strength, unless beams that are at bottom part of the building and columns that are at the last floor of the building seem to have insufficient in shear capacity. Finally, the results are slightly different although the reinforcement ratio in structural components changes.
Year2012
TypeThesis
SchoolSchool of Engineering and Technology (SET)
DepartmentDepartment of Civil and Infrastucture Engineering (DCIE)
Academic Program/FoSStructural Engineering (STE) /Former Name = Structural Engineering and Construction (ST)
Chairperson(s)Pennung Warnitchai;
Examination Committee(s)Anwar, Naveed;Thanakorn Pheeraphan;
Scholarship Donor(s)Royal Thai Government Fellowship;


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