Changes in out-of-plane vibration characteristics of unreinforced and reinforced walls of historic masonry buildings

Yasuhiro Nambu, Noriko Takiyama, Yasuhiro Hayashi

Research output: Contribution to journalArticle

Abstract

We report the changes in out-of-plane vibration characteristics due to the seismic retrofit of historic masonry buildings based on the result of microtremor measurement. Major findings from the research are as follows; (1) Natural frequencies increase nearly 1.1 to 1.9 times by reinforcement. And, the increasing rate of natural frequency becomes smaller as it becomes high order. (2) Using steel frame for reinforcement, out-of-plane deformation of masonry wall is restrained. And, using shear wall, it is restrained greatly. (3) 1 st damping factor doesn't change remarkable by reinforcement.

Original languageEnglish
Pages (from-to)165-168
Number of pages4
JournalAIJ Journal of Technology and Design
Volume19
Issue number41
DOIs
Publication statusPublished - Feb 1 2013
Externally publishedYes

Fingerprint

Reinforcement
Natural frequencies
Shear walls
Damping
Steel

All Science Journal Classification (ASJC) codes

  • Architecture
  • Building and Construction

Cite this

Changes in out-of-plane vibration characteristics of unreinforced and reinforced walls of historic masonry buildings. / Nambu, Yasuhiro; Takiyama, Noriko; Hayashi, Yasuhiro.

In: AIJ Journal of Technology and Design, Vol. 19, No. 41, 01.02.2013, p. 165-168.

Research output: Contribution to journalArticle

@article{21ed9a08608b4c7994257aac366e5904,
title = "Changes in out-of-plane vibration characteristics of unreinforced and reinforced walls of historic masonry buildings",
abstract = "We report the changes in out-of-plane vibration characteristics due to the seismic retrofit of historic masonry buildings based on the result of microtremor measurement. Major findings from the research are as follows; (1) Natural frequencies increase nearly 1.1 to 1.9 times by reinforcement. And, the increasing rate of natural frequency becomes smaller as it becomes high order. (2) Using steel frame for reinforcement, out-of-plane deformation of masonry wall is restrained. And, using shear wall, it is restrained greatly. (3) 1 st damping factor doesn't change remarkable by reinforcement.",
author = "Yasuhiro Nambu and Noriko Takiyama and Yasuhiro Hayashi",
year = "2013",
month = "2",
day = "1",
doi = "10.3130/aijt.19.165",
language = "English",
volume = "19",
pages = "165--168",
journal = "AIJ Journal of Technology and Design",
issn = "1341-9463",
publisher = "日本建築学会",
number = "41",

}

TY - JOUR

T1 - Changes in out-of-plane vibration characteristics of unreinforced and reinforced walls of historic masonry buildings

AU - Nambu, Yasuhiro

AU - Takiyama, Noriko

AU - Hayashi, Yasuhiro

PY - 2013/2/1

Y1 - 2013/2/1

N2 - We report the changes in out-of-plane vibration characteristics due to the seismic retrofit of historic masonry buildings based on the result of microtremor measurement. Major findings from the research are as follows; (1) Natural frequencies increase nearly 1.1 to 1.9 times by reinforcement. And, the increasing rate of natural frequency becomes smaller as it becomes high order. (2) Using steel frame for reinforcement, out-of-plane deformation of masonry wall is restrained. And, using shear wall, it is restrained greatly. (3) 1 st damping factor doesn't change remarkable by reinforcement.

AB - We report the changes in out-of-plane vibration characteristics due to the seismic retrofit of historic masonry buildings based on the result of microtremor measurement. Major findings from the research are as follows; (1) Natural frequencies increase nearly 1.1 to 1.9 times by reinforcement. And, the increasing rate of natural frequency becomes smaller as it becomes high order. (2) Using steel frame for reinforcement, out-of-plane deformation of masonry wall is restrained. And, using shear wall, it is restrained greatly. (3) 1 st damping factor doesn't change remarkable by reinforcement.

UR - http://www.scopus.com/inward/record.url?scp=84874396755&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874396755&partnerID=8YFLogxK

U2 - 10.3130/aijt.19.165

DO - 10.3130/aijt.19.165

M3 - Article

AN - SCOPUS:84874396755

VL - 19

SP - 165

EP - 168

JO - AIJ Journal of Technology and Design

JF - AIJ Journal of Technology and Design

SN - 1341-9463

IS - 41

ER -