After Northridge Earthquake in 1994 and Kobe Earthquake in 1995, urban earthquakes have been warning us the importance of resilient building structures. Resilience of building structures possess quick recovery capability of building functions. In order to achieve resilient building structures, it is important to develop low damage structural systems in a broader sense and propose a design procedure to utilize them. This study presents a seismic performance of eight reinforced concrete beams using high strength (SD685) transverse steel reinforcement focusing on mode of peak load deterioration and crack performance so that the results of this study will be utilized in cost evaluation of reinforced concrete members to achieve most economical resilient structural system. Load carrying capacity assessment on flexure, shear and bond was computed based on the 1999 AIJ design guidelines and compared with the experimental results for its accuracy. The experimental load carrying capacity was 1.1 times larger than the computed results in average. Modes of peak load deterioration, such as shear tension, shear compression, flexure failures, were also well simulated. Then, residual shear crack width were evaluated for reparability of members. The crack data were used to evaluate the crack assessment procedure of the 2004 AIJ design guidelines and it was found that shear drift component can be correlated to the summation of horizontal crack gaps of positive and negative cracks. The paper describes the work as part of the current research efforts on resilient reinforced concrete structures in Japan.
Seismic performance of RC beams focusing on failure mode and crack evaluation / Kono, S.; Setiawan, J.; Obara, T.; Del Zoppo, M.; Watanabe, H.; Mukai, D. J.. - 10:(2018), pp. 6065-6074. (Intervento presentato al convegno 11th National Conference on Earthquake Engineering 2018: Integrating Science, Engineering, and Policy, NCEE 2018 tenutosi a usa nel 2018).
Seismic performance of RC beams focusing on failure mode and crack evaluation
Del Zoppo M.Data Curation
;Watanabe H.;
2018
Abstract
After Northridge Earthquake in 1994 and Kobe Earthquake in 1995, urban earthquakes have been warning us the importance of resilient building structures. Resilience of building structures possess quick recovery capability of building functions. In order to achieve resilient building structures, it is important to develop low damage structural systems in a broader sense and propose a design procedure to utilize them. This study presents a seismic performance of eight reinforced concrete beams using high strength (SD685) transverse steel reinforcement focusing on mode of peak load deterioration and crack performance so that the results of this study will be utilized in cost evaluation of reinforced concrete members to achieve most economical resilient structural system. Load carrying capacity assessment on flexure, shear and bond was computed based on the 1999 AIJ design guidelines and compared with the experimental results for its accuracy. The experimental load carrying capacity was 1.1 times larger than the computed results in average. Modes of peak load deterioration, such as shear tension, shear compression, flexure failures, were also well simulated. Then, residual shear crack width were evaluated for reparability of members. The crack data were used to evaluate the crack assessment procedure of the 2004 AIJ design guidelines and it was found that shear drift component can be correlated to the summation of horizontal crack gaps of positive and negative cracks. The paper describes the work as part of the current research efforts on resilient reinforced concrete structures in Japan.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
