03179nas|a2200409 i 4500 20260818134604.0 220900s2000 th uzm rtt 00| a1eng d .b11809279 AIT Thesis no.ST-00-20 Peerakit Naparaxawong Improvement of seismic performance of multi-story frame buildings by metallic dampers Bangkok : Asian Institute of Technology, 2000 106 leaves Thesis ; no. ST-00-20 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering Thesis (M.Eng.) - Asian Institute of Technology, 2000 Metallic dampers, when incorporated into a structure, provide one of the most effective energy dissipation mechanisms during an earthquake. A study of improvement of seismic performance of multi-story frame buildings by using metallic dampers for wide range of structural period is presented. Frame-type buildings with different number of stories are modeled as single-bay shear frame buildings. The structures are subjected to a single earthquake ground motion record and their seismic responses are determined by performing nonlinear dynamic analyses through DRAIN-2DX Program. At the beginning, the higher mode effects on seismic responses of these structures are investigated. The results confirm that the higher mode effects are significant and cause the high localization of structural damage in first few stories for long period structure. To reduce the structural damage of these structures, the metallic dampers that were designed in conventional way are selected. The results show that metallic dampers, which were designed in conventional way, cannot effectively reduce the structural damage of long period multi-story frame buildings. A more effective way to design the metallic dampers to reduce the seismic response of structures for wide range of natural period is introduced. By employing this new concept, the metallic dampers can effectively reduce the seismic response of long period structures. Buildings Performance Damping (Mechanics) Earthquake resistant design Pennung Warnitchai, Chairperson Worsak Kanok-Nukulchai, Examination Committee Zhu, Hongping, Examination committee Government of Japan, Scholarship donor Asian Institute of Technology. Thesis ; no. ST-00-20 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B06846 .b11809279 mnait u 240331 0 000922 m a u 0 mnait mnarc 22 40 Barcode : 30050120747158 CREATED : 2014-05-20 RECORD # : i12801690 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160102181 CREATED : 2016-04-21 RECORD # : i12943617 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 58749 58749 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.ST-00-20 30050120747158 2026-08-18 13:46:04 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ST-00-20 30050160102181 2026-08-18 13:46:04 1 2026-08-18 40