Results 41 to 50 of about 3,339,275 (235)

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Numerical and Experimental Evaluation of a Simplified Lateral Spring Formulation for Rocking Structures

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Rocking podium isolation systems have gained significant research interest as a method of limiting seismic demands on superstructures and eliminating residual post‐earthquake drifts through self‐centring behaviour. However, while numerous models of varying complexity, including analytical, phenomenological, and physical formulations, have been
Marawan Zaki, Chiyun Zhong, Constantin Christopoulos   +2 more
wiley   +1 more source

Seismic Response of Existing Masonry‐Infilled RC Frame Structures Retrofitted with Steel Exoskeletons

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Considering the needs for reducing carbon emissions and except for extreme cases of very degraded existing structures, research on technologies allowing continued use or upgrading of older buildings has become a priority topic. Generally, research on upgrading of reinforced concrete frame structures certainly has a prominent role, because of ...
Francesco Nigro, Gaetano Della Corte, Enzo Martinelli   +2 more
wiley   +1 more source

Fragility analysis of masonry structural units by Response Surface method

, 2018
Structural masonry aggregates include a set of inhomogeneous structural units that can interact under seismic action; therefore the seismic analysis cannot ignore the inevitable interactions resulting from structural contiguity between adjacent ...
Nicola Buratti, Lidia Battaglia, Marco Savoia   +2 more
core   +1 more source

Optimization of structural brickwork laying joints in concrete blocks

Revista IBRACON de Estruturas e Materiais, 2018
One of the challenges in the investigation of structural masonry is the correlation between the thickness of the laying joints and the global resistance of the masonry.
M. V. S. CAVALCANTI, A. M. X. FRANCISCO, D. M. RODRIGUES, D. G. SILVA   +3 more
doaj   +2 more sources

Influence of the Boundary Conditions on the Seismic Response of Existing Masonry Infills From In‐Plane and Dynamic Out‐of‐Plane Tests

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Despite increasing attention to the seismic performance of masonry infills, their out‐of‐plane dynamic behaviour remains insufficiently explored, particularly under pre‐existing in‐plane damage. This study presents a comprehensive experimental campaign designed to investigate the seismic behaviour of an existing weak masonry infill typology ...
Maithree Kurukulasuriya, Riccardo R. Milanesi, Guido Magenes, Paolo Morandi   +3 more
wiley   +1 more source

Masonry Wall Performance Estimation Under Blast Loading: A Study Using Finite Element Analysis

Mekanika
This paper studies the dynamic response of masonry wall structures under blast loading. It requires a detailed understanding of the explosion phenomenon, wave propagation, and the structure's response to these shocks.
Muhammad Arif Husni Mubarok, Halim Hamadi, Quang Thang Do, Siti Nurlita, Afiq Azfar Pratama, Rommy Rommy   +5 more
doaj   +1 more source

Enhancing the Seismic Resilience of Masonry‐Infilled RC Structures Using Rubber Joints: Full‐Scale 3D Shaking Table Tests

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Masonry infills in reinforced concrete (RC) frames are highly vulnerable to seismic damage, often sustaining severe cracking even under moderate ground motion, which in turn leads to considerable economic losses and safety risks. To address this issue, this study experimentally evaluates the effectiveness of two innovative rubber‐based joints ...
Enrico Tubaldi, Marko Marinković, Simone Galano, Alessandro Lotti, Fabio Freddi, Daniele Losanno, Hamid Ahmadi, Matjia Gams, Nemanja Krtinić, Matija Bošković, Christoph Butenweg, Prateek Kumar Dhir, F. Manojlovski, A. Bogdanovic, Zoran Rakicevic, Vlatko Sheshov, J. Bojadzieva   +16 more
wiley   +1 more source

Damage Characteristics and Stress Distribution Law of Overburden Rock in Multiple Mining of Close Coal Seams

Energy Science &Engineering, EarlyView.
This study on close coal seams shows that multi‐seam mining increases the height of the fractured zone from approximately 26 m (single upper‐seam mining) to about 49 m. When the lower seam is mined after the extraction of the upper seam, the heights of both the caved zone and the fractured zone increase by approximately two times.
Xiaoyu Wu, Lei Guo, Zedong Sun, Xiaowei Wu, Nan Zhang   +4 more
wiley   +1 more source

Vulnerability of historical masonry buildings under exceptional actions [PDF]

, 2010
The topic of this thesis is the vulnerability assessment of historical masonry buildings under exceptional actions. In order to develop the study, the structural performance of masonry aggregates and isolated monumental buildings under extreme loading ...
Florio, Gilda
core   +1 more source