Next Article in Journal
AIM: A Computational Tool for the Automatic Quantification of Scratch Wound Healing Assays
Next Article in Special Issue
Development of a Self-Powered Magnetorheological Damper System for Cable Vibration Control
Previous Article in Journal
Time-Domain Functional Diffuse Optical Tomography System Based on Fiber-Free Silicon Photomultipliers
Previous Article in Special Issue
Research on the Rational Yield Ratio of Isolation System and Its Application to the Design of Seismically Isolated Reinforced Concrete Frame-Core Tube Tall Buildings
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Appl. Sci. 2017, 7(12), 1238; doi:10.3390/app7121238

Base Pounding Model and Response Analysis of Base-Isolated Structures under Earthquake Excitation

1
School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
2
State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
*
Author to whom correspondence should be addressed.
Received: 31 October 2017 / Revised: 26 November 2017 / Accepted: 27 November 2017 / Published: 29 November 2017

Abstract

In order to study the base pounding effects of base-isolated structure under earthquake excitations, a base pounding theoretical model with a linear spring-gap element is proposed. A finite element analysis program is used in numerical simulation of seismic response of based-isolated structure when considering base pounding. The effects of the structure pounding against adjacent structures are studied, and the seismic response of a base-isolated structure with lead-rubber bearing and a base-isolated structure with friction pendulum isolation bearing are analyzed. The results indicate that: the model offers much flexibility to analyze base pounding effects. There is a most clearance unfavorable width between adjacent structures. The structural response increases with pounding. Significant amplification of the story shear-force, velocity, and acceleration were observed. Increasing the number of stories in a building leads to an initial increase in impact force, followed by a decrease in such force. As a result, it is necessary to consider base pounding in the seismic design of base-isolated structures. View Full-Text
Keywords: base isolation; isolated structure; base pounding model; time-history analysis; seismic response; impact response base isolation; isolated structure; base pounding model; time-history analysis; seismic response; impact response
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Liu, C.; Yang, W.; Yan, Z.; Lu, Z.; Luo, N. Base Pounding Model and Response Analysis of Base-Isolated Structures under Earthquake Excitation. Appl. Sci. 2017, 7, 1238.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top