Results 81 to 90 of about 45,661 (315)

Structural performance of unreinforced full-scale façade concrete beam-column joint under cyclic load

, 2022
Post-earthquake observations have shown that poorly reinforced concrete (RC) beam-column joints in existing structures determine premature brittle failures during seismic action.
Ciuffetelli E., Gregori A., Angiolilli M., Peditto A., Tonelli R., Tonelli C.   +5 more
core   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Non-parametric probabilistic seismic capacity model for the stochastic interaction system of soil-subway station structures

Underground Space
A reasonable seismic capacity model is crucial for establishing the seismic performance level system and evaluating the seismic reliability of subway station structures.
Minze Xu, Chunyi Cui, Hailong Liu, Jingbo Li, Jingtong Zhao, Chengshun Xu   +5 more
doaj   +1 more source

Hysteretic Characteristics of Wood-Frame Structures Under Seismic Motions [PDF]

, 2009
In order to develop seismic codes that can effectively mitigate damage to wood-frame construction under seismic activity, the dynamic characteristics of wood-frame buildings must be well understood.
Sutoyo, Daniel
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Research on Seismic Isolation Schemes of High-speed Railway Continuous Girder Bridge Based on Life Cycle Cost

工程科学与技术, 2020
In the seismic design of long-span continuous beam bridges in high intensity seismic area, isolation devices are generally used to reduce the seismic response and economic losses of structures, and different arrangements of isolation measures often ...
Li FENG, Li WANG, Yanyan FAN, Ziqi LI
doaj  

PERFORMANCE BASED SEISMIC ENGINEERING [PDF]

The International Conference on Civil and Architecture Engineering, 2008
Performance based seismic engineering is the modern approach to earthquakeresistant design. Rather than being based on prescriptive mostly empirical codeformulations, performance based design is an attempt to predict buildings withpredictable seismic performance.
openaire   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Thermal‐induced fracture evolution and acoustic signature of Beishan granite: Insights into tensile strength of barrier system for high‐level radioactive waste disposal

Deep Underground Science and Engineering, EarlyView.
The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng, Shijie Li, Xiaozhao Li, Zhen Huang, Shangtong Yang, Wentao Xu, Biao Wang, Yun Wu   +7 more
wiley   +1 more source

Seismic design optimization and seismic performance of tall buildings and seismic performance

, 2020
Günümüzde artan ihtiyaçlar doğrultusunda Türkiye'de yüksek yapı stoku giderek artmaktadır. Geleneksel olarak ülkemizdeki tüm yüksek binaların taşıyıcı sistemi betonarme çekirdek perde ve çerçevelerden oluşturulmaktadır. Yüksek binaların taşıyıcı sistemini oluştururken tasarımdaki herhangi bir değişiklik deprem performansını etkileyecektir.
openaire   +1 more source