Journal of Civil Engineering Researchers <p>“Journal of Civil Engineering Researchers” is an independent publisher, consistently working towards being an internationally- recognized publishing company, specializing in high-quality electronic publications. Our Online submission, electronic peer review, and production make the process of publishing your article simple and efficient. Our team of editors makes the right decisions based on the quality of a manuscript and its adherence to the norms of the field. <a title="Read more" href=""><strong>Read more</strong></a></p> <p><a href=";view_op=list_works&amp;authuser=2&amp;gmla=AJsN-F6NHx4W1-bkxoYeRGz1mZMZPED0PMzHY8kgMSvUPU08VrQHTaLdsREyRlzXmPiQTuwmlNw6F5XBjDVp0_LVktab5NqN_w&amp;user=IQhS8zkAAAAJ" target="_blank" rel="noopener"><strong>Google Scholar</strong></a>, <a title="ISC" href=";SrchTxt=2538516X" target="_blank" rel="noopener">ISC</a>, <a href=";journalId=46374" target="_blank" rel="noopener"><strong>ICI</strong></a>, and ... Indexe the full text of scholarly literature <span id="GingerWidget-correction-0" class="correction alternate">published</span> by the Journal of Civil Engineering Researchers.</p> <p><strong>Online ISSN:</strong> 2538-516X</p> en-US (journal of civil engineering researchers) (Kamyar Bagherinejad) Sat, 01 Jun 2024 10:01:46 +0330 OJS 60 Comprehensive Sinkhole Mitigation: A Case Study and Application of Compaction Grouting in Karstic Environments in in the State of Tennessee, USA <p>Sinkholes pose significant risks to infrastructure, requiring detailed investigation and effective repair strategies. This paper details a case study of a persistent sinkhole along a driveway in Nashville, Tennessee, which has caused repeated pavement subsidence despite multiple repairs. The investigation included site visits, drilling operations, soil and rock analysis, and groundwater assessment. Three mitigation approaches were evaluated including conventional inverted rock filter repair, constructing a land bridge, and compaction grouting. After considering technical, situational, and cost factors, compaction grouting was chosen as the optimal solution. The paper outlines the compaction grouting repair strategy, including methodology, materials, and construction specifications. The findings aim to enhance design standards and construction practices for sinkhole repairs in Tennessee and similar geotechnical regions.</p> Hossein Alimohammadi, Ashfaq Memon Copyright (c) 2024 Journal of Civil Engineering Researchers Sun, 09 Jun 2024 00:00:00 +0330 A Review on Progressive Collapse and Its Types <p>The occurrence of progressive structural damage during seismic events and nearby explosions presents a significant challenge. Progressive failure refers to the situation in which a localized failure in a structural element triggers the failure of neighboring elements, leading to further collapses within the building. There are limited instances of structures experiencing either partial or complete progressive failure. Notably, such occurrences were observed following the partial collapse of the renowned Ronan Point<sup>1</sup> residential building in London in 1968 and the destruction of the World Trade Center buildings on September 11, 2001. The engineering community and various standardization committees have focused their attention on this significant issue and have initiated the implementation of enhanced design methods to mitigate progressive failure.</p> Niloufar Allahverdi, Seyed Mohammd Mirhoseini, Emadaldin Hezavehi, Vahid Rahimi Copyright (c) 2024 Journal of Civil Engineering Researchers Sat, 01 Jun 2024 00:00:00 +0330 Provisions Comparison of The National Building Regulations (The Eighth Topic) and Iranian Code of Practice for Seismic Resistant Design of Buildings (2800 Standard) for Masonry Buildings with Ring Beam <p>Buildings with masonry materials are one of the weakest buildings against earthquakes, and the importance of proper design and correct construction of these buildings is not hidden. Among The buildings with masonry materials, the buildings with Ring beams are the most common of such buildings. Engineers use internal and external regulations and standards to design ring beam masonry buildings. The two main references for the design and construction of masonry buildings with Ring beams are the Code of Practice for Seismic Resistant Design of Buildings (Standard 2800, Fourth Edition) and the Eighth Topic of the National Building Regulations (2020 Edition) under the title of design and construction of buildings with masonry materials. The Provisions for&nbsp;masonry buildings with Ring beams are given in the fifth chapter of the Eighth Topic of the National Building Regulations and the Seventh Chapter of the 2800 Standard. In this research, an attempt was been made to examine the Provisions of masonry buildings with Ring beams of these two references and to identify the discrepancies and differences in the provisions. The investigation of these two references has shown that there were more than 66 cases of differences in Provisions regarding masonry buildings with Ring beams between the Eighth Topic of the National Building Regulations and the Seismic Resistant Design of Buildings. Most of the differences in the criteria were related to the sections of vertical and horizontal Ring beams, structural walls, and Non-structural walls with 34 cases and 51.5% compared to the total difference. Also, the type of soil is classified in the Eighth Topic of The National Construction Regulations with 3 types of soil and the 2800 Standard of Conduct is classified with 4 types of soil.</p> Hossein Nematian jelodar, Negar Moloukaneh, Ayda Khazaei poul Copyright (c) 2024 Journal of Civil Engineering Researchers Mon, 24 Jun 2024 00:00:00 +0330 Structural Damage Identification Using a Multi-stage Gravitational Search Algorithm <p>A multi-stage gravitational search algorithm (MSGSA) is proposed here to solve the optimization-based damage detection of structural systems. Natural frequency changes of a structure are considered as a criterion for damage occurrence. Finite element method and structural dynamic principles are also employed to evaluate the required natural frequencies. The structural damage detection problem is first transformed into a standard optimization problem dealing with continuous variables, and then the MSGSA is utilized to solve the optimization problem for finding the site and severity of damage. In order to assess the performance of the proposed method for damage identification, an example with experimental data and two numerical examples with considering measurement noise are considered. All the results demonstrate the effectiveness of the proposed method for accurately determining the site and extent of multiple structural damage. Also, the performance of the MSGSA for damage detection compared to the standard gravitational search algorithm (GSA) is confirmed by examples.</p> Saeed Fallahian, Seyed Mohammad Seyedpoor, Eshagh Norouzi, Sara Ghasemi Copyright (c) 2024 Journal of Civil Engineering Researchers Wed, 26 Jun 2024 00:00:00 +0330