Research Article

Experimental and analytical studies on earthquake resisting behaviour of confined concrete block masonry structures

  1. Norio Hori1,*,
  2. Norio Inoue1,
  3. Dangol Purushotam2,
  4. Tetsuya Nishida3,
  5. Jun Kobayashi3

Article first published online: 6 JUL 2006

DOI: 10.1002/eqe.604

Issue

Earthquake Engineering & Structural Dynamics

Earthquake Engineering & Structural Dynamics

Volume 35, Issue 13, pages 1699–1719, 10 November 2006

Additional Information

How to Cite

Hori, N., Inoue, N., Purushotam, D., Nishida, T. and Kobayashi, J. (2006), Experimental and analytical studies on earthquake resisting behaviour of confined concrete block masonry structures. Earthquake Engng. Struct. Dyn., 35: 1699–1719. doi: 10.1002/eqe.604

Author Information

  1. 1

    Department of Architecture and Building Science, Graduate School of Engineering, Tohoku University, Sendai, Japan

  2. 2

    Department of Earthquake Engineering (Structure), Khwopa Engineering College, Nepal

  3. 3

    Department of Architecture and Environment Systems, Faculty of Systems Science and Technology, Akita Prefectural University, Yurihonjo, Japan

*Department of Architecture and Building Science, Graduate School of Engineering, Tohoku University, Aoba 6-6-11-1218, Sendai 980-8579, Japan

Publication History

  1. Issue published online: 21 SEP 2006
  2. Article first published online: 6 JUL 2006
  3. Manuscript Accepted: 28 APR 2006
  4. Manuscript Revised: 6 JAN 2006
  5. Manuscript Received: 17 JUN 2005

Funded by

  • Ministry of Education, Culture, Sports, Science and Technology of Japan
  • Dalian University of Technology, China

SEARCH

SEARCH BY CITATION

ARTICLE TOOLS

Get PDF (419K)

Keywords:

  • confined masonry structure;
  • concrete block;
  • mortar joint;
  • earthquake resistance;
  • static load test;
  • rigid body spring model

Abstract

To improve the seismic performance of masonry structures, confined masonry that improves the seismic resistance of masonry structures by the confining effect of surrounding bond beams and tie columns is constructed. This study investigated the earthquake resisting behaviour of confined masonry structures that are being studied and constructed in China. The structural system consists of unreinforced block masonry walls with surrounding reinforced concrete bond beams and tie columns. The characteristics of the structure include: (1) damage to blocks is reduced and brittle failure is avoided by the comparatively lower strength of the joint mortar than that of the blocks, (2) the masonry walls and surrounding reinforced concrete bond beams and tie columns are securely jointed by the shear keys of the tie columns. In this study, wall specimens made of concrete blocks were tested under a cyclic lateral load and simulated by a rigid body spring model that models non-linear behaviour by rigid bodies and boundary springs. The results of studies outline the resisting mechanism, indicating that a rigid body spring model is considered appropriate for analysing this type of structure. Copyright © 2006 John Wiley & Sons, Ltd.

Get PDF (419K)