A Comparative Evaluation of Earthquake Code Change on Seismic Parameter and Structural Analysis; A case of Turkey

Büyüksaraç, Aydın; Işık, Ercan; Bektaș, Özcan

doi:10.1007/s13369-022-07099-4

Cited by 11 publications

(4 citation statements)

References 31 publications

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“…The investigation of the effects of earthquakes on engineering structures in earthquake-prone parts of the Earth is a unique tool for determining the effects of the next ground motion [2]. In this case, much research in this area [3][4][5][6][7][8][9][10][11][12][13][14][15] has investigated the damage assessment and sustainability of RC buildings by using fragility curves and proposed a new model to evaluate damages for structures. On the other hand, the seismic response of buildings is also an important topic for earthquake engineering.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of the 2023 Pazarcık and Elbistan Earthquakes in Diyarbakır

Karasin

2023

Buildings

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Türkiye is prone to earthquakes due to its location on various tectonic plates, which can lead to a loss of lives and property. Recently, on 6 February 2023, two major earthquakes hit Pazarcık and Elbistan in Türkiye, causing widespread destruction on the East Anatolian Fault (EAF) zone. Even Diyarbakır, a distant province from the epicentre, was severely affected, highlighting the need to evaluate Turkish earthquake codes. As part of this evaluation, a structural analysis was conducted on earthquake-damaged and collapsed buildings in Diyarbakır. The study analysed three buildings with different levels of damage and six collapsed buildings as case studies. The seismic parameters of the earthquakes were compared to the values in the two recent earthquake hazard maps used in Türkiye’s codes, as well as the Eurocode 8 damage limit values obtained from pushover analysis. The results revealed significant differences between the current seismic values of earthquakes and the current peak ground acceleration (PGA) values specified in the Turkish Earthquake Design Regulations. Additionally, the selected buildings showed inadequate structural behaviours, with significant differences between the expected and actual seismic performances with respect to the PGA values as one of the most important earthquake characteristics.

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Section: Introductionmentioning

confidence: 99%

Comparative Analysis of the 2023 Pazarcık and Elbistan Earthquakes in Diyarbakır

Karasin

2023

Buildings

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“…Bommer et al [6] established a shallow crustal ground motion prediction model, offering a reliable tool and parameters for nonlinear dynamic analysis. In addition to these studies, there are also other aspects that have been explored or can be explored using Turkey's strong motion data, such as site effects [7], source characteristics [8], seismic wave propagation [9], seismic intensity [10], seismic risk mapping [11], seismic early warning [12], seismic resilience [13], etc. These aspects are important for advancing the scientific knowledge and practical applications of strong motion data in Turkey and beyond.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Peak Ground Acceleration and Seismogenic Fault Characteristics of the Mw7.8 Earthquake in Turkey

Duan,

Bo,

Peng

et al. 2023

Applied Sciences

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A Mw7.8 earthquake struck Turkey on 6 February 2023, causing severe casualties and economic losses. This paper investigates the characteristics of strong ground motion and seismogenic fault of the earthquake. We collected and processed the strong ground motion records of 379 stations using Matlab, SeismoSignal, and Surfer software: Matlab (Version R2016a), SeismoSignal (Version 5.1.0), and Surfer (Version 23.0.15), and obtained the peak ground acceleration (PGA) contour map. We analyzed the near-fault effect, the fault locking segment effect, and the trampoline effect of the earthquake based on the spatial distribution of PGA, the fault geometry, and slip distribution. We found that the earthquake generated a very strong ground motion concentration effect in the near-fault area, with the maximum PGA exceeding 2000 cm/s2. However, the presence of fault locking segments influenced the spatial distribution of ground motion, resulting in four significant PGA high-value concentration areas at a local dislocation, a turning point, and the end of the East Anatolian Fault. We also revealed for the first time the typical manifestation of the trampoline effect in this earthquake, which was characterized by a large vertical acceleration with a positive direction significantly larger than the negative direction. This paper provides an important reference for understanding the seismogenic mechanism, damage mode, characteristics, and strong earthquake law of the Turkey earthquake.

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“…With the rapid development of the national economy, the scale of the city increases, the degree of modernisation is increasingly high, and the dependence on the lifeline project is increasingly strong. However, in increasingly frequent natural disasters, especially under the action of a strong earthquake [1][2][3], lifeline projects suffered serious damage, and water supply, power supply, communication and other services were interrupted, which caused secondary disasters, and even led to paralysis of the function of the whole city, resulting in a large number of life and property losses.…”

Section: Introductionmentioning

confidence: 99%

Research on Seismic Connectivity Reliability Analysis of Water Distribution System Based on CUDA

Yang

Zhou

et al. 2023

Water

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To improve the seismic connectivity reliability (SCR) analysis efficiency of water distribution systems (WDS) based on Monte Carlo (MC) simulation, the quasi-Monte Carlo (QMC) method sampled by a low-discrepancy sequence is applied. Furthermore, a parallel algorithm combined with the breadth-first search algorithm for SCR analysis of WDS based on the QMC method and Compute Unified Device Architecture (CUDA) platform was proposed. A city WDS was taken as a computational example, the accuracy and efficiency of the traditional MC algorithm and parallel algorithm were compared, and the influence of the Sobol sequence and pseudo-random number sequence was analysed. The analysis results show that when 1,000,000 simulations are performed, the maximum error of the calculation results of the two methods is 0.2%, and the parallel method can obtain a six-fold speedup ratio compared with the serial method, indicating that the proposed parallel method is correct, meets the accuracy requirements, and helps to improve the SCR analysis efficiency. When the number of simulations is the same, the simulation results based on the Sobol sequence are more accurate than those based on the pseudo-random number sequence. The proposed parallel method also achieves a good acceleration effect in the SCR analysis of large-scale WDS.

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A Comparative Evaluation of Earthquake Code Change on Seismic Parameter and Structural Analysis; A case of Turkey

Cited by 11 publications

References 31 publications

Comparative Analysis of the 2023 Pazarcık and Elbistan Earthquakes in Diyarbakır

Comparative Analysis of the 2023 Pazarcık and Elbistan Earthquakes in Diyarbakır

Analysis of Peak Ground Acceleration and Seismogenic Fault Characteristics of the Mw7.8 Earthquake in Turkey

Research on Seismic Connectivity Reliability Analysis of Water Distribution System Based on CUDA

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