Results 31 to 40 of about 5,345 (232)

Geotechnical aspects on seismic retrofit [PDF]

Procedia Structural Integrity, 2018
Abstract In the paper numerical analysis of foundation of damaged masonry structure using finite element method is presented. Retrofitting of those structures has been performed using technology DC90. By retrofit design, the foundation structure is confined with the foundation collar, connected by anchors and in which the vertical stiffening elements
Žugić, Željko, Sedmak, Simon, Folić, Boris   +2 more
openaire   +1 more source

A novel genetic algorithm-based optimization framework for minimizing seismic retrofitting interventions costs in existing masonry structures [PDF]

, 2023
The pressing necessity of enhancing the seismic safety of existing masonry structures in earthquake-prone areas has led, in recent years, the research to propose a vast amount of new retrofitting techniques.
Di Trapani F., Sberna A. P., Marano G. C.   +2 more
core   +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

Full‐scale Shaking Table Tests on a 10‐story Steel Moment‐resisting Frame Building with Buckling‐restrained Braces

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT In February 2023, a comprehensive series of shaking table tests were conducted at the E‐Defense facility, the world's largest three‐dimensional earthquake simulator, on a full‐scale 10‐story steel moment‐resisting frame supplemented with BRBs.
Jun Fujiwara, Jialiang Jin, Jionghui Li, Tianhao Yan, Ryota Nishi, Akiko Kishida, Koichi Kajiwara, Takuya Nagae, Taichiro Okazaki, Tatsuya Asai   +9 more
wiley   +1 more source

Seismic retrofitting of RC frames with RC infilling (SERFIN Project)

, 2014
The effectiveness of seismic retrofitting of multi-storey multi-bay RC-frame buildings by converting selected bays into new walls through infilling with reinforced concrete (RC) was studied experimentally at the ELSA facility of the Joint Research Centre
Onoufriou, Toula, Chrysostomou, Christis, Kosmopoulos, Antonis, Taucer, Fabio, Kotronis, Panagiotis, Molina Ruiz, Javier, Roussis, Panayiotis C., Kyriakides, Nicholas, Panagiotakos, Telemachos, Poljanšek, Martin   +9 more
core   +1 more source

Seismic performance enhancement of underground structure influenced by CFRP wrapping schemes

Urban Lifeline
The seismic failure mechanism of underground structures showing structural collapse is attributed to the deformation incompatibility between the central columns and the sidewalls, especially the insufficient deformation capacity of the central columns ...
Chao Ma, Xiaolei Li, Guosheng Wang, Dechun Lu, Xiuli Du   +4 more
doaj   +1 more source

An SSI‐Informed Design for Tuned Mass Dampers With Small‐to‐Large Mass Ratios

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Tuned Mass Dampers (TMDs) are used to mitigate structural vibrations induced by seismic or wind excitation, by tuning the device to the system's dominant resonant frequencies. However, the TMD effectiveness can be undermined by soil‐structure interaction, which can lead to elongation of the vibration periods and to combined translational ...
Davide Noè Gorini, Pasquale Roberto Marrazzo, Elide Nastri, Rosario Montuori   +3 more
wiley   +1 more source

Weak‐Story Mitigation and Drift Redistribution in Moment‐Resisting Frames Using Stepping Rocking Walls

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This study investigates the seismic response of moment‐resisting frames retrofitted with a stepping rocking wall, with emphasis on weak‐story mitigation and residual drift reduction under both ordinary and pulse‐like ground motions. Nonlinear response‐history analyses are conducted on 9‐story and 20‐story SAC Los Angeles frames.
Mehrdad Aghagholizadeh
wiley   +1 more source

Seismic retrofitting: Learning from vernacular architecture

, 2015
Local communities have adapted for centuries to challenging surroundings, resulting from unforeseen natural hazards. Vernacular architecture often reveals very intelligent responses attuned to the environment.
Varum, Humberto, Lourenço, Paulo B., Correia, Mariana   +2 more
core   +1 more source

Seismic Retrofit of an Existing RC Building With Isolation Devices Applied at Base

Frontiers in Built Environment, 2020
Nowadays, seismic retrofit through isolation strategy represents a consolidated technique of protection against design earthquakes. This technique is also applied on existing structures extensively, due to the fact that it usually does not require any ...
Michele D'Amato, Raffele Laguardia, Rosario Gigliotti   +2 more
doaj   +1 more source