Effect of building plan curvature and diaphragm modeling on lateral response of tall buildings | |
| Author | Ja San Lu |
| Call Number | AIT Thesis no.ST-10-02 |
| Subject(s) | Tall buildings Lateral loads Curvature |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-10-02 |
| Abstract | Floor and roof systems in buildings act as an important role to transfer the lateral load to vertical lateral load resisting (VLLR) elements through diaphragm action. Diaphragm flexibility is one of the major conc erns for different configurations of building s . In this study, the effect of rigid and flexible floor diaphragm assumptions for various curvatures of building s in plan is presented. A typical sixty stories straight building (rectangular in plan) is taken f rom the Philippines and changing from straight configuration to various curved shape d building s like 60 degree, 120 degree and 180 degree configurations in plan by keeping overall dimension s constant in each configurations . This research is especially focu sed on the lateral load effect s on different configurations of building s due to these rigid and flexible floor diaphragm s . All the building configurations are analyzed assuming both rigid and flexible floor diaphragm assumptions for different analyses case s like equivalent static analysis (IBC - 2006) , two response spectrum analyses (IBC - 2006 spectrum and El Centro spectrum) and time history analysis (EL Centro ground motion). The analysis results are presented in terms of story shear, story moment, diaphragm CM displacement and story drift. The analysis results show that the structural responses are more for flexible floor diaphragm than rigid floor diaphragm assumption. Moreover, the diaphragm effect is found to be significant if the curvature of buildings i n plan is more and even more significant in weaker direction than in stronger direction. |
| Year | 2010 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-10-02 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pennung Warnitchai |
| Examination Committee(s) | Anwar, Naveed;Chiu, Gregory L.F. |
| Scholarship Donor(s) | Royal Thai Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2010 |