Theoretical Research and Shaking Table Test on Nominal Aspect Ratio of the Isolated Step-Terrace Structure DOI Creative Commons
Longfei Zhang, Xiang Lan,

Wenzheng Yu

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(7), P. 2002 - 2002

Published: July 2, 2024

With the installation of rubber isolation bearings in upper and lower ground layers, an isolated step-terrace structure was created. Considering ultimate bearing capacity under tension as critical condition, a comprehensive framework established to evaluate overturning failure mechanisms present structures. The bound nominal aspect ratio identified principal control index within this framework, which incorporates parameters such height (α), width (β), vertical tensile stiffness compressive (γ), seismic coefficient (k), stress (σ0) provide thorough analysis structural responses potential scenarios. In order further investigate matter, scaled model concrete frame featuring two dropped layers single span 8° fortification zone meticulously crafted at 1:10 similarity ratio. Subsequently, series shaking table tests were conducted analyze response excitation. findings indicate that: utilizing metric gauge anti-overturning structures is justified approach. instances where remains constant, for both positive negative trended upward with increase Notably, consistently registered values compared that overturning, underscoring heightened susceptibility overturning. Moreover, scenarios characterized by higher ratios, integrity remained unscathed any effects arising from insufficient strength bearings. Furthermore, exhibited ascending trend coefficient, stress, decreased. outcomes derived test not only confirm impressive performance structure, but also, closely examining instantaneous variations model, substantiate existence hazard marked coefficients (k). This observation aligns seamlessly theoretical projections, thereby substantiating efficacy theory through direct empirical verification.

Language: Английский

A Thorough Examination of Innovative Supplementary Dampers Aimed at Enhancing the Seismic Behavior of Structural Systems DOI Creative Commons
Panagiota Katsimpini, George A. Papagiannopoulos,

George D. Hatzigeorgiou

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(3), P. 1226 - 1226

Published: Jan. 25, 2025

This review article presents a detailed investigation into the seismic behavior of structures employing supplementary dampers or additional damping mechanisms over past decade. The study covers range systems, including viscous, viscoelastic, and friction dampers, as well tuned mass other approaches. A systematic analysis more than 160 publications in current literature is undertaken, providing clear overview equipped with devices challenges they face. theoretical principles that underpin these technologies are examined, along their practical applications effectiveness alleviating effects. Additionally, highlights recent developments design devices, related to implementation, prospective directions for future research. By synthesizing results from experimental studies, numerical simulations, real-world applications, this offers valuable insights researchers engineers involved earthquake-resistant structures.

Language: Английский

Citations

0
Comparative review of intelligent structural safety in building seismic risk mitigation utilizing an integrated artificial intelligence controller DOI Creative Commons
Normaisharah Mamat, Rawad Abdulghafor, Sherzod Turaev

et al.

Deleted Journal, Journal Year: 2025, Volume and Issue: 7(5)

Published: April 24, 2025

Language: Английский

Citations

0
Dynamic analysis of base-isolated and fixed-base RC frame buildings under near-field and far-field earthquakes DOI
Dhirendra Patel, Rajesh Kumar

Sadhana, Journal Year: 2025, Volume and Issue: 50(2)

Published: April 29, 2025

Language: Английский

Citations

0
Unlocking Resilience: Examining the Influence of Fluid Viscous Dampers on Seismic Performance of Reinforced-concrete Structures in Earthquake-prone Regions DOI Open Access

Asma Belbachir,

Nesrine Belbachir,

Sadek Bahar

et al.

Periodica Polytechnica Civil Engineering, Journal Year: 2024, Volume and Issue: 68(4)

Published: July 25, 2024

In high seismicity regions like Algeria, the seismic performance of structures is paramount importance. This study investigates effectiveness fluid viscous dampers (FVDs) in enhancing resilience a 12-story (G+12) reinforced concrete structure. By utilizing Etabs and SeismoSoft softwares, comparative analysis conducted between two structural configurations: one with traditional fixed base another incorporating dampers. The incorporation FVDs aims to mitigate impact by dissipating energy, thereby reducing shear, displacement, acceleration during events. structure's location zone necessitates robust design strategies ensure safety integrity. paper presents comprehensive response advanced simulation framework providing detailed results on key parameters. findings highlight potential significantly improve structures, offering promising solution for earthquake-prone areas.

Language: Английский

Citations

3
Earthquake Consideration in Architectural Design: Guidelines for Architects DOI Open Access
Sardar S. Shareef

Sustainability, Journal Year: 2023, Volume and Issue: 15(18), P. 13760 - 13760

Published: Sept. 15, 2023

Architectural planners must give due consideration to seismic events as they present substantial hazards both critical infrastructure and human well-being. This research investigates the fundamental concepts methodologies employed by architects enhance resilience in buildings ensure safety of occupants. It emphasizes importance hazard assessment, design standards, structural systems, cutting-edge technology reducing earthquake-related dangers. A mixed method has been adopted: surveying literature, applying inductive reasoning, conducting a case study. highlights value interdisciplinary cooperation between engineers, geotechnical experts, resilient built environments that can survive pressures unleashed occurrences. The findings demonstrated architectural solutions approaches might significantly impact earthquake risk reduction techniques non-seismic locations. In cases taken, different techniques—in some multiple techniques—had applied based on buildings’ geographical locations, sizes, shapes. Finally, we prepared checklist for these strategies, including mass distribution, openings, rooftop structures, other considerations be make easier.

Language: Английский

Citations

9
Torsional Response of a Building Isolated with Triple Friction Pendulum Bearings under Stochastic Ground Motion Excitation DOI

Zhang Qing Qing,

Zhang Li Na

Iranian Journal of Science and Technology Transactions of Civil Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: April 5, 2024

Language: Английский

Citations

2
A Novel Three-Dimensional Composite Isolation Bearing and Its Application to the Mitigation of Earthquakes and Traffic-Induced Vibrations DOI Open Access
Qiaoyun Wu, Hang Xu, Zhifeng Xu

et al.

Sustainability, Journal Year: 2023, Volume and Issue: 15(23), P. 16374 - 16374

Published: Nov. 28, 2023

Potential damage caused by earthquakes combined with reduced comfort due to traffic has become a big challenge when designing modern buildings, and base-isolation is one of the most effective solutions such problem. However, isolation bearings cannot provide sufficient mitigation for both traffic-induced vibrations simultaneously. To this end, research proposes new type three-dimensional bearing earthquake effects vibrations, which composited thick rubber bearing, an auto-reset flat sliding double concave friction pendulum bearing. In study, analytical hysteresis model proposed was derived experimentally validated. addition, fatigue performance vertical compression tested analyzed. Finally, effect validated through field test.

Language: Английский

Citations

2
Seismic Performance Evaluation of Multi-Storey Residential Building with Friction Pendulum Bearings: Indonesia case study DOI Creative Commons
Zaurbek Abaev, Faiz Sulthan

Structural Mechanics of Engineering Constructions and Buildings, Journal Year: 2024, Volume and Issue: 20(1), P. 57 - 72

Published: March 15, 2024

The methodology for seismic performance evaluation of a residential building in Indonesia with the use isolation is considered. An 8-storey reinforced concrete frame shear wall structural system was selected as case study. Nonlinear methods response analysis were used to calculate structure: nonlinear static (Pushover) and Nonlinear-Time History Analysis, NLTHA. performed STERA 3D freeware. time history seven pairs horizontal components earthquake ground motions, according parameters possible earthquakes considered site (Bandung city). records modified using spectral matching procedure design spectrum. Friction-pendulum bearings developed by Nippon Steel Corporation Japan isolation. results show that shallow result greater damage compared megathrust earthquakes, both scenarios providing life safety (LS) level. can reduce loads, evidenced reduction top-level accelerations forces at base.

Language: Английский

Citations

0
Dynamic behavior of high damping rubber bearings and lead rubber bearings under near-fault earthquakes DOI Open Access
Dhirendra Patel, Rajesh Kumar, Vishal Kumar Mourya

et al.

Research on Engineering Structures and Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Civil engineering structures are susceptible to natural calamities such as earthquakes, floods, and strong winds. Base isolation is a proven method for protecting during earthquakes. It involves inserting flexible layer between the foundation superstructure isolate structure from thereby changing system's dynamic characteristics. The present study compares performance of passive base isolators, specifically High Damping Rubber Bearings (HDRBs) Lead (LRBs), under near-fault ground motion conditions assess their effectiveness in reducing seismic impact on structures. isolator first analyzed using static general approach validated against existing literature before undergoing analysis. In this research, LRB system explicit ABAQUS, while HDRB implicit approach. behavior these isolators studied events those Imperial Valley, Managua, Loma Prieta, Northridge, Kocaeli motions. results indicate that LRBs significantly reduce acceleration at top bearing compared HDRBs. maximum reductions response 68.42% earthquake case 61.80% Northridge shows minimum reduction 57.24%, HDRB, it 24.47% Valley records both cases.

Language: Английский

Citations

0
Influence of Vertical Geometric Irregularity on the Seismic Response of High-Rise Buildings Equipped with Base Isolation System DOI Open Access

Romel Moises Olivera Perez,

Thalia Leticia Julcarima Coca,

Lovell Wilder Torpoco Lopez

et al.

Civil Engineering and Architecture, Journal Year: 2024, Volume and Issue: 12(3A), P. 2091 - 2115

Published: May 1, 2024

In the year 2022 according to United Nations, world population is three times larger than twentieth century, which affects demand for land and consequently cost per m 2 increases.Likewise, it requires occupants choose build high-rise buildings maximize area acquired, most structures require huge shear walls that increase in steel, turn reduce profitability of real estate lack aesthetic spaces on floors.Now, recent architectural models do not allow regular structures, consequently, different irregularities occur.The present work develops influence vertical geometric irregularity with base isolation system, by researchers, modellers designers, carried out analysis a pattern model (MPAT) based walls, columns beams against 12 models, presented their structural configuration irregularities, consisting 20 floors.It was analyzed means seismic properties established Peruvian regulation norm E.030 E0.31, providing rigidity, resistance, ductility structure, likewise elements type Elastomeric LRB Slider were placed, developed nonlinear time history total 7 pairs registrations.Finally, observed displacement irregular compared structure variation greater 3.14%.Similarly, drifts between floors analysed M1T3, M2T3, M3T3, M4T3 model, obtaining an drift 56.74%.On other hand, accelerations level, M2T3 obtained 60.63% standard model.Finally energy dissipation isolators, dissipates 92.84% generated effect dissipated directly isolators.

Language: Английский

Citations

0