Developing design response spectra for Benghazi city including soil magnification effects

Fathi M.  Layas; Vail  Karakale; Ramadan E.  Suleiman

doi:10.59400/be.v2i1.1190

Developing design response spectra for Benghazi city including soil magnification effects

Fathi M. Layas Department of Civil Engineering, Faculty of Engineering, University of Benghazi, Benghazi 218-61, Libya
Vail Karakale Department of Civil Engineering, Faculty of Engineering and Natural Sciences, Istanbul Medeniyet University, Istanbul 34700, Turkey
Ramadan E. Suleiman Department of Civil Engineering, Faculty of Engineering, University of Benghazi, Benghazi 218-61, Libya

Ariticle ID: 1190

163 Views, 83 PDF Downloads

DOI: https://doi.org/10.59400/be.v2i1.1190

Keywords: earthquake; response spectra; soil conditions; amplifications; Benghazi; Libya

Abstract

Earthquakes in some countries worldwide cause loss of lives and properties. In Libya, the design of structures to resist earthquake forces was based on a paper published by Mallick in 1976. In 1977, and after small changes in the earthquake zoning map of Libya, the ministry of housing, at that time, adopted it as a draft code of practice for the design of structures to resist earthquake forces. With Benghazi city undergoing significant rehabilitation and development programs, including major national projects, there is a pressing need to estimate updated probabilistic seismic hazard maps and design response spectra specific to the city. This study presented updated probabilistic seismic hazard ground motion for Benghazi city, considering different return periods and accounting for peak ground acceleration (PGA) values with various soil conditions. Proposed design response spectra for Benghazi City unveil substantial PGA amplifications in soft soil areas.

References

[1] American Society of Civil Engineering. Minimum Design Loads and Associated Criteria for Buildings and Other Structures (7-16). American Society of Civil Engineering; 2017.

[2] Erdik M, Tümsa MBD, Pınar A, et al. A preliminary report on the February 6, 2023 earthquakes in Türkiye. Available online: https://temblor.net/temblor/preliminary-report-2023-turkey-earthquakes-15027/ (accessed on 2 March 2024).

[3] Karakale V, Özgür E, Ataoğlu Ş. Site Observations on Buildings’ Performance in Hatay Province after Kahramanmaraş Earthquakes. El-Cezeri Journal of Science and Engineering. 2023; 10(3): 506-516. doi: 10.31202/ecjse.1253284.

[4] Mallick DV. Seismic Zoning of Libya. In: Proceedings of the 6th World Conference on Earthquake Engineering; 10-14 January 1977; New Delhi, India.

[5] Lagesse R, Free M, Lubkowski Z. Probabilistic Seismic Hazard Assessment for Libya. In: Proceedings of the 16th World Conference on Earthquake Engineering; 9-13 January 2017; Santiago, Chile.

[6] Karakale V, Suleiman RE, Layas FM. Lateral load behavior of RC buildings exposed to fire: case study. Journal of Asian Architecture and Building Engineering. 2022; 22(1): 274-285. doi: 10.1080/13467581.2022.2026777.

[7] Layas FM, Karakale V, Suleiman RE. Behavior of RC Buildings under Blast Loading: Case Study. Recent Progress in Materials. 2023; 5(3): 1-12. doi: 10.21926/rpm.2303029.

[8] Kebeasy RM. Seismicity and Seismotectonics of Libya, Symposium on the Geology of Libya. Tripoli. 1978; 9: 16-21.

[9] Suleiman AS, Doser DI. The seismicity, seismotectonics and earthquake hazards of Libya, with detailed analysis of the 1935 April 19, M = 7.1 earthquake sequence. Geophysical Journal International. 1995; 120(2): 312-322. doi: 10.1111/j.1365-246x.1995.tb01820.x

[10] Al-Heety EA. Seismicity and seismotectonics of Libya: as an example of intraplate environment. Arabian Journal of Geosciences. 2011; 6(1). doi:10.1007/s12517-011-0347-y

[11] Al-Heety EA, Eshwehdi A. Seismicity of the Northwestern Region of Libya: An Example of Continental Seismicity. Seismological Research Letters. 2006; 77(6): 691-696. doi: 10.1785/gssrl.77.6.691

[12] Shaw B, Jackson J. Earthquake mechanisms and active tectonics of the Hellenic subduction zone. Geophysical Journal International. 2010; 181(2): 966-984. doi: 10.1111/j.1365-246x.2010.04551.x

[13] Ambraseys NN. Material for the Investigation of the Seismicity of Libya. Libyan Studies. 1994; 25: 7-22. doi: 10.1017/s0263718900006191

[14] Suleiman AB. Establishment of the Libyan National Seismological Network (LNSN): An Effort Aimed at Assessing and Mitigating Natural Disaster Risks on the National and Regional Scale. Metadata Workshop; 2009.

[15] Suleiman AS, Albini P, Migliavacca P. A Short Introduction to Historical Earthquakes in Libya. Annals of Geophysics. 2004; 47: 545-554.

[16] HashashYMA, Musgrove MI, Harmon JA, et al. Deepsoil 7.0, User Manual. 2020. Available online: https://www.studocu.com/id/document/institut-teknologi-sepuluh-nopember/civil-infrastructure/deepsoil-user-manual-v7/68704466 (accessed on 11 November 2023).

Published

2024-03-29

How to Cite

Layas, F. M., Karakale, V., & Suleiman, R. E. (2024). Developing design response spectra for Benghazi city including soil magnification effects . Building Engineering, 2(1), 1190. https://doi.org/10.59400/be.v2i1.1190

Download Citation

Issue

Vol. 2 No. 1 (2024)

Section

Article

This work is licensed under a Creative Commons Attribution 4.0 International License.

Editor-in-Chief

Prof. Scholz Miklas
University of Johannesburg, South Africa

eISSN

3029-2670

Publication Frequency

Semi-annual

About the Publisher

Academic Publishing insists on taking academic exchange and publication as the main line, carrying out comprehensive management based on science and technology, and fully exploring excellent international publishing resources. Within 5 years, it will form a strategic framework and scale with science (S), technology (T), medicine (M), education (E), and humanities and arts (H) as the main publishing fields. Academic Publishing is headquartered in Singapore and based in Malaysia, with the United States and China providing the main scientific and academic resources. At the same time, it has established long-term good cooperative relations with other publishing companies, scientific research communities, and academic organizations in more than a dozen countries and regions. Academic Publishing uses English and Chinese as its main publishing languages, mainly publishing books, journals, and conference papers in print and online. The vast majority of publications follow the international open access policy, providing stable and long-term quality and professional publications. With the joint efforts of the expert team and our professional editorial team, our publications will gradually be indexed by international databases in stages to provide convenient and professional retrieval for various scholars. At the same time, manuscripts we accept will be subject to the peer review principle, and cutting-edge and innovative research articles will be preferentially accepted for peer reference and discussion. All kinds of our publications are welcome for peer to contribute, access, and download.

more

Volume Arrangement

2024

Vol 2, No 2 (2024)

Vol 2, No 1 (2024)

2023

Vol 1, No 1 (2023)

Featured Articles

Comprehensive seismic loss model of Tehran, Iran in the case of Mosha fault seismic scenario using stochastic finite-fault method

This paper presents the results of a study caried out to assess probable seismic loss, in term of damage to the residential buildings and the number of fatalities, in the case of Mosha Fault seismic scenario in Tehran, Iran. Accordingly, seismic risk components (including seismic hazard, exposure model and fragility curves) are evaluated. The stochastic finite-fault method with dynamic corner frequency is applied for quantifying ground motion values. The results shows that PGA on the soil surface could range between 0.1 g to 0.45 g. Then, a reliable model of building exposure by analyzing census data from Tehran is compiled. This model included 19 different classes of buildings and is used to evaluate the potential damage to buildings from seismic scenario. The results indicate that the median of damage ratio from 100,000 iterations for the whole of the city is about 6% ± 1.54%. The study found that the central and eastern parts of Tehran are the most vulnerable areas, with an estimated 15,952 residents at risk of losing their lives in this scenario. This is equivalent to 0.2 percent of total population of Tehran. The finding from this study can be used by local authorities to provide appropriate emergency-response and preparedness plans in the case of Mosha Fault seismic scenario.

Digital transformation of quality management in the construction industry during the execution phase by integration of building information modeling (BIM) and cloud computing

The quality of construction projects significantly impacts social and economic development. However, low quality and project failure often result from factors such as lack of quality procedures, poor communication, task coordination, and inefficient progress monitoring. This research aims to improve the efficiency of the construction phase by creating quality control checklists for processes and enhancing quality management through a collaborative digital environment integrating building information modeling (BIM) and cloud computing. Expert constructive interviews were first conducted to define a construction process quality control procedure to be linked to the 3DBIM model and then transition to a collaborative cloud environment (Autodesk Construction Cloud). An actual instance in Latakia City (Syria) demonstrated that the proposed methodology improves the efficiency and effectiveness of quality management during the implementation phase. It does so by offering a robust database, enhancing on-site quality information extraction from BIM models using smartphones, documenting defects and entering inspection data directly into a shared digital environment, and making it easier to track corrective actions and feedback. This facilitates constant and organized access to current data, reducing errors and rework, saving money and time, and enhancing decision-making speed and effectiveness. The search recommends the necessity of strict laws to adhere to quality procedures and the importance of providing infrastructure for digital transformation in quality management.

Net zero energy analysis and energy conversion of sustainable residential building in Muscat, Oman

The building sector is the predominant consumer of primary energy globally. The building sector accounts for around 40% of global energy production.Net Zero Energy Buildings (NZEBs) are highly suggested by energy experts as an effective option to alleviate the strain on primary energy sources caused by the building sector. The disparity between energy performance predictions provided during the design phase and the actual energy performance of residential buildings is mostly attributed to a limited comprehension of the components that influence energy consumption and the constraints of whole building simulation software. The objective of this research was to perform a comparison analysis of the expected and actual energy consumption of a prototype net-zero energy house built at the University of Technology and Applied Sciences in Muscat. The Hourly Analysis Programme (HAP V4.2) was utilised to forecast the energy consumption of a Net Zero Energy Building (NZEB) at HCT, taking into account the availability of an Energy Recovery Ventilator (ERV) and the absence of an ERV. The newly built house underwent a one-month testing phase to fulfil many duties according to competition regulations. One of the main goals was to generate on-site energy through photovoltaic panels, producing an amount proportional to the energy consumed by the house. Upon comparing the actual energy consumption data with the simulated result, it was noticed that the actual energy demand of the house was around 20% lower than the prediction made by the simulation tool.

Architecting sustainability performances and enablers for grid-interactive efficient buildings

Today, grid-interactive efficient buildings are gaining popularity due to their potential sustainability performances through their ability to learn, adapt, and evolve at different scales to improve the quality of life of their users while optimizing resource usage and service availability. This is realized through various practices such as management and control measures enabled by smart grid technologies, interoperability, and human-cyber-physical security. However, despite their great potential, the research of those technologies still faces various challenges. These include a lack of communication and control infrastructure to address interpretability, security, cost barriers, and difficulties balancing occupant needs with grid benefits. Initially, system modelling and simulation are promising approaches to address those challenges ahead of time. It involves the consideration of complex systems made up of components from various research domains. This paper addresses the above practices, highlighting the value of integrating technology and intelligence in the planning and operation of buildings, both new and old. It provides a way to educate architects and engineers about this emerging field and demonstrates how these practices can help in creating efficient, resilient, and secure buildings that contribute to occupant comfort and decarbonization.