Results 111 to 120 of about 6,194,745 (353)

Seismic Behavior of Concentrically Braced Steel Frames with Out-of-Plane Offset Irregularity

, 2017
Braced steel frames are sometimes designed with out-of-plane shifted bracing members on the first story due to architectural or functional considerations.
A. Mohebkhah, Marzieh Akefi
semanticscholar   +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

Study on seismic behavior of reinforced concrete column-steel beam side joints

Journal of Asian Architecture and Building Engineering, 2020
In this paper, a steel beam insert RCS side joint specimen is designed, and the low-cycle reciprocating loading test has been studied by designing a similar form of side joint specimen.
Yuhong Ling, Wenli Zheng, Yi Li, Lianjiang Zhou, Jing Zhou   +4 more
doaj   +1 more source

Gaborlet‐guided sparse filtering: A novel intelligent method for lithology identification by vibration signals while drilling

Deep Underground Science and Engineering, EarlyView.
The flowchart illustrates rock specimen testing, vibration signal acquisition, and feature extraction with Gaborlet and sparse filtering for classification. Abstract Traditional lithology identification methods mainly rely on core sampling and well‐logging data.
Jian Hao, Danqi Zhang, Zhenqi Song, Jinrui Wang, Qi Wang, Heqing Liu   +5 more
wiley   +1 more source

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Investigation on Seismic Behavior of Prestressed Steel Strand Composite Reinforced High-Strength Concrete Column

Buildings
To study the seismic performance of high-strength concrete columns reinforced with prestressed steel strands, five column specimens were designed and tested with varying parameters, such as axial compression ratio (0.2, 0.35, 0.5) and diameter of steel ...
Zhenfen Jin, Jun Li, Liangzhao Wang
doaj   +1 more source

A way to synchronize models with seismic faults for earthquake forecasting: Insights from a simple stochastic model

, 2006
Numerical models are starting to be used for determining the future behaviour of seismic faults and fault networks. Their final goal would be to forecast future large earthquakes.
Aki, Amalio F. Pacheco, Baba, Bak, Ben-Zion, Boness, Bowman, Castellaro, Dahmen, Das, Das, Dowrick, Drossel, Fitzenz, Goltz, González, González, Grant, Gutenberg, Gutenberg, Gómez, Hainzl, Hainzl, Hainzl, Harris, Hashimoto, Heimpel, Helmstetter, Henley, Hickman, Houghton, Ikeda, Ishimoto, Javier B. Gómez, Kanamori, Kanamori, Kato, Keilis-Borok, Kisslinger, Kossobokov, Kuroki, Lei, López-Ruiz, Main, Mason, Michael, Miguel Vázquez-Prada, Miller, Molchan, Moreno, Newman, Okada, Olami, Palmer, Pepke, Preston, Reasenberg, Robinson, Robinson, Rubin, Rundle, Rundle, Rundle, Rundle, Rundle, Scholz, Scholz, Schorlemmer, Schwartz, Seeber, Sieh, Soloviev, Steacy, Stirling, Stirling, Tanioka, Tiampo, Tsukahara, Turcotte, Vázquez-Prada, Vázquez-Prada, Ward, Wells, Wesnousky, Wesnousky, Wyss, Yabuki, Yagi, Yamamoto, Yeats, Youngs, Zoback, Zöller, Álvaro González   +93 more
core   +1 more source

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao, Xiaolong Wang, Xiao Chen, Dong Liu, Zhenhui Kang, Cheng Zhu   +5 more
wiley   +1 more source

Seismic Behavior of Soft First Storey

IOSR Journal of Mechanical and Civil Engineering, 2012
In the aftermath of recent North Kashmir Earthquake of October 8, 2005, there is increased awareness for the need to evaluate and improve the seismic performance of multistoried reinforced concrete buildings. There are several numbers of factors affecting the behavior of building. Stiffness irregularity in vertical direction is one of them, as a result
openaire   +1 more source