Open AccessA New Experimental Manner to Determinate Design Parameters of High Damping Rubber Bearings
Author(s) -
Nguyễn Anh Dũng,
Quang Hung Nguyen
Publication year - 2019
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.i8208.078919
Subject(s) - flexibility (engineering) , structural engineering , bearing (navigation) , shear (geology) , natural rubber , displacement (psychology) , engineering , computer science , materials science , mathematics , composite material , psychology , statistics , artificial intelligence , psychotherapist
High damping rubber bearings (HDRB) is an efficient technique developed to prevent or minimize damage to buildings during earthquakes. HDRB with high flexibility and high damping capacity have been widely applied in Japan. The high flexibility will be able to move the structures’ natural refequencies to shirk the resonance with excitation, while their high damping capability can reduce the corresponding displacement. In seismic design codes (AASHTO 2010, JRA 2004), the design parameters of HDRB are identified from a stress-strain loop of sinusoidal bearing experiment results. The specimens of HDRB are designed based on ISO 2005, however, the cost of these specimens is quite high. In this paper, a new test manner, namely lap shear tests with cheap cost is investigated to replace the bearing tests. The analytical results show that lap shear tests may be the alternative method for determination of design parameters of HDRB.