Results 41 to 50 of about 5,915,569 (299)

Multi-Source Feature-Fusion Method for the Seismic Data of Cultural Relics Based on Deep Learning

Sensors
The museum system is exposed to a high risk of seismic hazards. However, it is difficult to carry out seismic hazard prevention to protect cultural relics in collections due to the lack of real data and diverse types of seismic hazards.
Lin He, Quan Wei, Mengting Gong, Xiaofei Yang, Jianming Wei   +4 more
doaj   +1 more source

Rapid mapping of seismic intensity assessment using ground motion data calculated from early aftershocks selected by GIS spatial analysis

Geomatics, Natural Hazards & Risk, 2023
Following a major earthquake, disaster information services must deliver accurate damage assessment results during the emergency ‘black box’ phase when data is scarce.
Huaiqun Zhao, Yijiao Jia, Wenkai Chen, Dengjie Kang, Can Zhang   +4 more
doaj   +1 more source

Low cycle fatigue tests of reinforced concrete columns and joints built with ribbed reinforcement and plain stirrups [PDF]

, 2012
The majority of existing reinforced concrete (RC) buildings were built prior to the introduction of seismic codes. As observed in various recent earthquakes, due to their lack of structural capacity and ductility such structures are very vulnerable and
Varum, H., Rossetto, T., Borg, R. C.
core  

Extending displacement-based earthquake loss assessment (DBELA) for the computation of fragility curves [PDF]

, 2012
This paper presents a new procedure to derive fragility functions for populations of buildings that relies on the displacement-based earthquake loss assessment (DBELA) methodology.
SILVA MOURA PINHO, RUI JORGE, Varum, H., Pinho, R., V. Silva, H. Crowley, Crowley, H., H. Varum, Silva, V.   +7 more
core   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

Deep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao, Jiachen Xu, Kai Zhang, Changtai Zhou   +3 more
wiley   +1 more source

Experimental Quantification on the Residual Seismic Capacity of Damaged RC Column Members

International Journal of Concrete Structures and Materials, 2019
To quantify the post-earthquake residual seismic capacity of reinforced concrete (RC) column members, experimental data for 6 column specimens with flexural, flexural–shear and shear failure modes are used to derive residual seismic capacity of damaged ...
Chien-Kuo Chiu, Hsin-Fang Sung, Kai-Ning Chi, Fu-Pei Hsiao   +3 more
doaj   +3 more sources

Fragility Curves for Wooden Buildings Linked to Structural Strength with Focus on the Damage Onset Threshold [PDF]

E3S Web of Conferences
This study improves the fragility curves for wooden buildings used in probabilistic seismic risk assessment. Specifically, we resolved two issues identified in previous studies.
Tokizane Yoshinori, Aso Miki, Shimizu Satoshi, Naito Shohei, Momma Naokazu, Nakamura Hiromitsu, Fujiwara Hiroyuki   +6 more
doaj   +1 more source

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

Damage Assessment of Shear Wall Structures in an Earthquake–Blast Disaster Chain

Applied Sciences, 2022
Shear wall structures are widely used in civil engineering, and their seismic design has been the focus of much attention. Explosions can result from the rupture and ignition of gas pipelines under seismic action, and there are currently no methods to ...
Zhaoyu Xue, Linsheng Huo, Peiyu Ying, Hongnan Li   +3 more
doaj   +1 more source

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

Deep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei, Mojtaba D. fallahi, Ali Uromeihy, Mohammad R. Nikoodel, Mohammad Fathollahy   +4 more
wiley   +1 more source