An experimental study of in-plane arch-shaped dampers
- 60 Downloads
As an effort to minimize material utilization, seismic steel dampers designed to deform inelastically in an in-plane flexural mode have attracted serious attention recently. This paper presents a new type of metallic yielding damper referred to as the in-plane arch-shaped damper modified from its portal frame-shaped counterpart by replacing the straight beam with a circular arch to minimize the effects of stress concentration and warping, and therefore to avoid premature failure. Component tests of both the portal frame-shaped and arch-shaped in-plane dampers were conducted for comparison. Hysteresis loops obtained from the component tests under cyclic loads indicate substantial improvement on the energydissipative characteristics of the proposed damper. Moreover, seismic performance assessment of the proposed damper was carried out further via shaking table tests of a five-story model frame. Encouraging results have been achieved in terms of acceleration reduction, damping enhancement and peak suppression of the frequency response functions, suggesting the potential of the proposed device to be used in earthquake-resisting systems.
Keywordsseismic metallic yielding damper in-plane arch-shaped damper hysteresis loop shaking table test
Unable to display preview. Download preview PDF.
This work is supported by the TSC under contract MOST 103-2625-M-009-014 and by the Science & Technology of Fujian Province, China (Project No. 2017J01495).
- Beer FP, Johnston Jr. ER, DeWolf JT and Mazurek DF (2012), Mechanics of Materials, McGraw-Hill, N.Y.Google Scholar
- Bergman S and Goel S (1987), “Evaluation of Cyclic Testing of Steel-Plate Devices for Added Damping and Stiffness,” Report UMCE87-10, Department of Civil Engineering, University of Michigan, Michigan.Google Scholar
- Black C, Makris N and Aiken I (2002), “Component Testing, Stability Analysis and Characterization of Buckling-Restrained Unbonded Braces,” PEER Report 2002/08, Pacific Earthquake Engineering Research Center, College of Engineering, University of California, Berkeley.Google Scholar
- Borse GJ (1997), Numerical Methods with MATLAB, PWS, Publishing Company, Boston.Google Scholar
- Boresi AP, Schmidt RJ and Sidebottom OM (1993), Advanced Mechanics of Materials,” John Wiley & Sons, N.Y.Google Scholar
- Huang SC (2016), “Inelastic Stress Analysis of Curved Beams under Bending and Shear Coupling,” Master Thesis, Department of Civil Engineering, Chiao-Tung University, Hsinchu, Chinese Taipei. (in Chinese)Google Scholar
- Lee CL (2003), “A Study on Structural Vibration Control and Experimental Methodology,” PhD Dissertation, Department of Civil Engineering, Chiao-Tung University, Hsinchu, Chinese Taipei.Google Scholar
- Leong SW (2014), “Elasticity Theory and Testing of In-plane Arched Damper,” Master Thesis, Department of Civil Engineering, Chiao-Tung University, Hsinchu, Chinese Taipei. (in Chinese)Google Scholar
- Li G and Li HN (2008), “Earthquake-Resistant Design of RC Frame with Dual Functions Metallic Dampers,” The 14th World Conference on Earthquake Engineering, Beijing, China.Google Scholar
- Pall AS and Marsh C (1982), “Response of Friction Damped Braced Frames,” Journal of Structural Engineering, 108(ST6): 1313–1323.Google Scholar
- Park JH and Lee KH (2012), “Cyclic Loading Tests of Steel Dampers Utilizing Flexure-analogy Deformation,” The 15th World Conference on Earthquake Engineering, Lisbon, Portugal.Google Scholar
- Soong TT and Dargush GF (1997), “Passive Energy Dissipation Systems in Structural Engineering,” John Wiley & Sons, N.Y.Google Scholar
- Timoshenko SP and Goodier JN (1970), Theory of Elasticity, McGraw-Hill, N.Y.Google Scholar
- Wang WY (2014), “Mechanics of Material and Testing of In-plane Arched Damper,” Master Thesis, Department of Civil Engineering, Chiao-Tung University, Hsinchu, Chinese Taipei. (in Chinese)Google Scholar
- Wang YP, Liao WH and Lee CL (2003), “Seismic Risks of Typical Do uble Fabs in Taiwan’s Hi-Tech Industry,” Proceedings of the Joint NCREE/JRC Workshop International Collaboration on Earthquake Disaster Mitigation Research, Taipei, Chinese Taipei, pp. 187–201.Google Scholar
- Wang YP, Chen DH and Lee CL (2015), “An Experimental Study of In-Plane Arch-Shaped Flexural Damper,” The 8th International Conference in Structural Engineering and Construction (ISEC-8), Sydney, Australia, pp. 293–298.Google Scholar
- Wang YP, Lee CL and Huang SC (2016), “Inelastic Stress Analysis of Curved Beams with Bending and S hear Coupling,” Proceedings of the World Congress on Civil, Structural, and Environmental Engineering (CSEE’16), Prague, Czech Republic, Paper No. ICSENM 107.Google Scholar
- Whittaker AS, Bertero VV, Alonso LJ and Thompson CL (1989), “Earthquake Simulator Testing of Steel Plate Added Damping and Stiffness Elements,” Report UCB/EERC-89/02, Earthquake Engineering Research Center, University of California, Berkeley.Google Scholar