TY - GEN
T1 - Experimental Study on the Mechanical Behavior and the Feasibility of Monitoring of Building Frames with Steel Knee Brace
AU - Hiromatsu, Haruna
AU - Fujie, Riku
AU - Haoda, Teng
AU - Jin, Yuki
AU - Sakiyama, Natsuhiko
AU - Ito, Takumi
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
PY - 2024
Y1 - 2024
N2 - After a seismic disaster, building damage assessment is conducted by experts to confirm the safety of building. However, field surveys take a long time and have problems with the quality and safety of the survey. In recent years, to solve these problems, structural health monitoring (SHM), which can diagnose buildings from a distance, is in practical use. Previous study proposed a damage evaluation method focusing on the thermal characteristics caused by elastic-plastic deformation of steel members. This study focuses on the heat generation characteristics of steel and suggests the monitoring system for damage detection using steel knee brace. By using the knee brace as sacrificial members, the system can be easily replaced and reused after a disaster. And it allows retrofitting to buildings. In this paper, we aim to establish a damage evaluation system based on the relationship between the kinematic mechanism of steel knee brace and the deformation of the framework, and we have conducted static loading experiments with the knee brace attached to the framework to investigate the feasibility of the damage evaluation method. As a result, it was found that the story drift angle of the framework can be calculated from the deformation of the steel knee brace. It is also shown that the story drift angle of the framework and the damage evaluation of the members are possible from the plastic absorption energy of the knee brace.
AB - After a seismic disaster, building damage assessment is conducted by experts to confirm the safety of building. However, field surveys take a long time and have problems with the quality and safety of the survey. In recent years, to solve these problems, structural health monitoring (SHM), which can diagnose buildings from a distance, is in practical use. Previous study proposed a damage evaluation method focusing on the thermal characteristics caused by elastic-plastic deformation of steel members. This study focuses on the heat generation characteristics of steel and suggests the monitoring system for damage detection using steel knee brace. By using the knee brace as sacrificial members, the system can be easily replaced and reused after a disaster. And it allows retrofitting to buildings. In this paper, we aim to establish a damage evaluation system based on the relationship between the kinematic mechanism of steel knee brace and the deformation of the framework, and we have conducted static loading experiments with the knee brace attached to the framework to investigate the feasibility of the damage evaluation method. As a result, it was found that the story drift angle of the framework can be calculated from the deformation of the steel knee brace. It is also shown that the story drift angle of the framework and the damage evaluation of the members are possible from the plastic absorption energy of the knee brace.
KW - Internet of Things
KW - Plastic heat generation characteristics
KW - Seismic disaster
KW - Steel framed structure
KW - Story drift angle
KW - Structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=85200259020&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-62884-9_69
DO - 10.1007/978-3-031-62884-9_69
M3 - Conference contribution
AN - SCOPUS:85200259020
SN - 9783031628832
T3 - Lecture Notes in Civil Engineering
SP - 790
EP - 800
BT - Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas - STESSA 2024 - Volume 1
A2 - Mazzolani, Federico M.
A2 - Piluso, Vincenzo
A2 - Nastri, Elide
A2 - Formisano, Antonio
PB - Springer Science and Business Media Deutschland GmbH
T2 - 11th International Conference on the Behaviour of Steel Structures in Seismic Areas, STESSA 2024
Y2 - 8 July 2024 through 10 July 2024
ER -