Depiction of concrete structures with seismic separation under faraway fault earthquakes

Liang Luo , Hoang Nguyen , Hisham Alabduljabbar , Abdulaziz Alaskar , Fahed Alrshoudi , Rayed Alyousef , Viet-Duc Nguyen , Hoang-Minh Dang

Abstract

One of the most suitable methods in structural design is seismic separator. Lead-Rubber Bearing (LRB) is one of the most well-known separation systems which can be used in different types of structures. This system mitigates the earthquake acceleration prior to transferring to the structure efficiently. However, the performance of this system in concrete structures with different heights have not been evaluated thoroughly yet. This paper aims to evaluate the performance of LRB separation system in concrete structures with different heights. For this purpose, three, 16, and 23 story concrete structures are equipped by LRB and exposed to a far-field earthquake. Next, a time history analysis is conducted on each of the structures. Finally, the performance of the concrete structures is compared with each other in the term of their response to the earthquakes and the formation of plastic hinges. The results of the paper show that the rate of change in acceleration response and the ratio of drift along the height of 8 and 23 stories concrete structures are more than those of the 16-stories, and the use of LRB reduces the formation of plastic joints.

Key Words

base isolation system; lead-rubber bearing; far-field earthquake; time history analysis; numerical analysis

Address

Liang Luo — Key Laboratory of High Performance Ship Technology (Wuhan University of Technology), Ministry of Education, Wuhan 430070, China; School of transportation, Wuhan University of Technology, Wuhan 430070, China
Hoang Nguyen — Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam
Hisham Alabduljabbar — Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-kharj 11942, Saudi Arabia
Abdulaziz Alaskar — Department of Civil Engineering, College of Engineering, King Saud University, Riyadh 11362, Saudi Arabia
Fahed Alrshoudi — Department of Civil Engineering, College of Engineering, King Saud University, Riyadh 11362, Saudi Arabia
Rayed Alyousef — Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-kharj 11942, Saudi Arabia
Viet-Duc Nguyen — Thuyloi University, 175 Tay Son, Dong Da, Hanoi, Vietnam
Hoang-Minh Dang — Division of Construction Computation, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam; Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam

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