Effectiveness of Damping Devices on Coupling Beams of 15-story Building Based on Nonlinear Analysis Procedures
Abstract
In recent years, damping device has been experimentally studied to replace diagonally reinforced coupling beams, to mitigate rebar congestion problem. This study focuses on evaluating the effectiveness of various damping devices in a high-rise building. Type of damping devices evaluated are Viscoelastic Damper (VCD) and Rotational Friction Damper (RFD), with study case of a 15-story reinforced concrete apartment building with a dual system (column-beam and shear walls). The analysis used is a nonlinear time history analysis with 11 pairs of ground motions matched to the Indonesian response spectrum based on ASCE 41-17 and ASCE 7-16. In this analysis, each damper will be varied with a different position, namely the first model, the damper will be installed on the entire floor and in the second model, the damper will be installed on the 5th floor to the 9th floor, which is the floor with the largest drift. The results show that the model using both dampers increase the level of structural performance globally and locally in the building, reducing the level of damage to the structural elements. But between the two dampers, the coupling beam that uses RFD is more effective than using VCD in improving building performance. The damper on the coupling beam has a good role in dissipating earthquakes and in terms of ease of installation.
References
ASCE/SEI. (2017b). ASCE/SEI 7-16 Minimum design loads and associated criteria for buildings and other structures. In Minimum Design Loads and Associated Criteria for Buildings and Other Structures. https://doi.org/10.1061/9780784414248
Badan Standardisasi Nasional. (2019). SNI 1726:2019 Tata Cara Perencanaan Ketahanan Gempa Untuk Struktur Bangunan Gedung dan Non Gedung.
Badan Standardisasi Nasional. (2020). SNI 8899:2020 Tata cara pemilihan dan modifikasi gerak tanah permukaan untuk perencanaan gedung tahan gempa.
Badan Standarisasi Nasional. (2019). SNI 2847:2019 Persyaratan Beton Struktural Untuk Bangunan Gedung Dan Penjelasan Sebagai Revisi Dari Standar Nasional Indonesia 2847 : 2013.
Breña, S. F., & Ihtiyar, O. (2011). Performance of Conventionally Reinforced Coupling Beams Subjected to Cyclic Loading. Journal of Structural Engineering, 137(6), 665–676. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000316
LATBSDC. (2020). An Altenative Procedure for Seismic Analysis and Design of Tall Buildings Located In The Los Angeles Region.
Montgomery, M., & Christopoulos, C. (2015). Experimental validation of viscoelastic coupling dampers for enhanced dynamic performance of high-rise buildings. Journal of Structural Engineering (United States), 141(5), 1–11. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001092
Mualla, I. (2000). Experimental Evaluation of a New Friction Damper Device. … on Earthquake Engineering, Auckland, New Zealand, 1–7.
NIST. (2009). FEMA P-750 NEHRP Recommended Seismic Provisions for New Buildings and Other Structures. NEHRP Seismic Design.
NIST. (2012). Seismic Design of Cast-in-Place Concrete Special Structural Walls and Coupling Beams A Guide for Practicing Engineers. NEHRP Seismic Design Technical Brief No. 6, (6).
Pant, D. R., Montgomery, M., Christopoulos, C., Xu, B., & Poon, D. (2017). Viscoelastic Coupling Dampers for the Enhanced Seismic Resilience of a Megatall Building. 16th World Conference on Earthquake Engineering, (December 2016), 1–9.
Shoeibi, S., Kafi, M. A., & Gholhaki, M. (2017). New performance-based seismic design method for structures with structural fuse system. Engineering Structures, 132, 745–760. https://doi.org/10.1016/j.engstruct.2016.12.002
Wight, J. K. (2016). Reinforced Concrete Mechanics and Design (7th ed.). New Jersey: Pearson Education.
