Aerodynamic Analysis and Design of Cable-Supported Bridges by Wind-Tunnel Test
หัวหน้าโครงการ
:
วิโรจน์ บุญญภิญโญ
ทีมวิจัย
:
วิโรจน์ บุญญภิญโญ
หัวหน้าโครงการ
กำธร เจนศุภเสรี
ผู้ช่วยนักวิจัย
วันที่เริ่มโครงการ
:
20 ก.ค. 2549
วัตถุประสงค์
:
1. To enhance the advancement of technology in design and analysis of aerodynamics of long-span bridges. The research will contribute to more understanding in this field to Thai engineering society and lead to reduction in overseas consultant dependence and design cost.
2. To develop techniques for simultaneous identification of flutter derivatives and aerodynamic admittance from coupled motions of section model in wind tunnel test and then develop computer software with precise algorithm that can simultaneously identify them. This software would be used for simultaneous identification of flutter derivatives and aerodynamic admittance of various bridge decks in wind tunnel test.
3. To develop techniques for measurement of static aerodynamic coefficients of section model in wind tunnel test. These coefficients are used to estimate aerostatic response of cable-supported bridges.
4. To perform wind tunnel test of section model to study phenomena of wind induced-response. Then, by using the computer software to identification of flutter derivatives and aerodynamic admittance, together with measurement of static aerodynamic coefficients, the aerodynamic response of the long-span cable-supported bridge can be accurately analyzed.
5. To investigate the control efficiency of tuned-mass damper and aerodynamic appendages on response of cable-supported bridges in wind-tunnel test. The structural and aerodynamic countermeasures result in increasing structural safety, occupant comfort of vehicle-running, extension of bridge life and reduction in maintenance cost.
