PERFORMANCE-BASED DESIGN OF MID-RISE BUCKLING-RESTRAINED KNEE BRACED TRUSS MOMENT FRAMES

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Wongpakdee, Nattapat;Leelataviwat, Sutat

ปีที่เผยแพร่ (ค.ศ.): 2017

วารสาร: Suranaree Journal of Science and Technology (0858-849X)

Volume number: 24

Issue number: 4

หน้าแรก: 445

หน้าสุดท้าย: 454

นอก: 0858-849X

URL: http://ird.sut.ac.th/e-journal/Journal/pdf/180101176.pdf

บทคัดย่อ

This paper presents an application of a newly developed seismic resistant bucklingrestrained knee braced truss moment frame (BRKB-TMF) structural system for mid-rise buildings. The design of this system is based on a design approach called the performancebased plastic design (PBPD) method modified to account for the characteristics of mid-rise frames. The design focuses on eliminating damage concentration, particularly in the first story. At the design state, the plastic strengths of the columns are carefully chosen to enhance the seismic behavior of a mid-rise building and to prevent a soft-story mechanism. The concept of the BRKB-TMF system is first described. The design and analysis of example mid-rise frames are then presented. A parametric study was carried out to find a suitable design approach for mid-rise frames. Nonlinear dynamic analyses were performed to investigate the response of the example frames. The analytical results illustrated that mid-rise BRKB-TMFs can be designed to provide excellent seismic behavior under both design basis earthquake and maximum considered earthquake intensities. The soft-story mechanism of the first story commonly found in mid-rise frames can be completely eliminated. Moreover, concentration of interstory drift in any 1 story can also be reduced.

คำสำคัญ

Buckling-restrained brace, mid-rise buildings, soft-story mechanism, Truss moment frames