1 AIT Asian Institute of Technology

Effect of diagonal bracing system on the seismic response of multi-story steel frames with viscous fluid dampers

AuthorJameel, Mohamed Haikal
Call NumberAIT Caps. Proj. no.CIE-16-50
Subject(s)Steel frames--Earthquake effects
Damping (Mechanics)

NoteA capstone project report submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Engineering Civil And Infrastructure Engineering, School of Engineering and Technology
PublisherAsian Institute of Technology
Series StatementCaps. Proj. ; no. CIE-16-50
AbstractAmong the many methods available today to dissipate the destructive energy added to a structure by an earthquake, Viscous Fluid Dampers (VFD) are one of the most widely used and effective. Various properties and arrangements of VFD's are available to maximize the resistance of a structure against a seismic event. The damper is added usually as part of a bracing section in a Concentrically Braced Frame (CBF) which also takes a part of the load. The aim of this study is to investigate the effect of varying the damping coefficient (C) on a Diagonally braced frame. C was either kept constant throughout the structure or subjected to a Stiffness Proportional Damping (SPD) method. Further comparisons are to be done with the bracing types of Chevron and V. When C was increased the story drift, acceleration and displacement all decreased but the story shear increased. Therefore from a range of C values the intermediate value was selected for the SPD Method. Results for the SPD Method show a marked improvement compared to the uniform damping cases. Comparison with Chevron and V bracing systems show clearly that the Chevron bracing is far superior in reducing the above mentioned parameters. All time history analyses will be conducted in ETABS.
Year2016
Corresponding Series Added EntryAsian Institute of Technology. Caps. Proj. ; no. CIE-16-50
TypeCapstone Project
SchoolSchool of Engineering and Technology (SET)
DepartmentDepartment of Civil and Infrastucture Engineering (DCIE)
Academic Program/FoSCivil and Infrastructure Engineering (CIE)
Chairperson(s)Hathairat Maneetes;
Examination Committee(s)Punchet Thammarak;Tian Boon Soh;
DegreeCapstone Project (B.Sc.)-Asian Institute of Technology, 2016


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