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Article
Publication date: 29 March 2024

Aminuddin Suhaimi, Izni Syahrizal Ibrahim and Mariyana Aida Ab Kadir

This review paper seeks to enhance knowledge of how pre-loading affects reinforced concrete (RC) beams under fire. It investigates key factors like deflection and load capacity to…

Abstract

Purpose

This review paper seeks to enhance knowledge of how pre-loading affects reinforced concrete (RC) beams under fire. It investigates key factors like deflection and load capacity to understand pre-loading's role in replicating RC beams' actual responses to fire, aiming to improve fire testing protocols and structural fire engineering design.

Design/methodology/approach

This review systematically aggregates data from existing literature on the fire response of RC beams, comparing scenarios with (WP) and without pre-loading (WOP). Through statistical tools like the two-tailed t-test and Mann–Whitney U-test, it assesses deflection extremes. The study further examines structural responses, including flexural and shear behavior, ultimate load capacity, post-yield behavior, stiffness degradation and failure modes. The approach concludes with a statistical forecast of ideal pre-load levels to elevate experimental precision and enhance fire safety standards.

Findings

The review concludes that pre-loading profoundly affects the fire response of RC beams, suggesting a 35%–65% structural capacity range for realistic simulations. The review also recommended the initial crack load as an alternative metric for determining the pre-loading impact. Crucially, it highlights that pre-loading not only influences the fire response but also significantly alters the overall structural behavior of the RC beams.

Originality/value

The review advances structural fire engineering with an in-depth analysis of pre-loading's impact on RC beams during fire exposure, establishing a validated pre-load range through thorough statistical analysis and examination of previous research. It refines experimental methodologies and structural design accuracy, ultimately bolstering fire safety protocols.

Details

Journal of Structural Fire Engineering, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2040-2317

Keywords

Book part
Publication date: 29 January 2024

Mujeeb Saif Mohsen Al-Absy and Husain Isa Merza

The aim of the study is to examine the influence of remuneration committee (RC) characteristics, namely separation, size, independence, meetings, and female directors, on firm…

Abstract

The aim of the study is to examine the influence of remuneration committee (RC) characteristics, namely separation, size, independence, meetings, and female directors, on firm performance (FP) by using return on assets (ROA), return on equity (ROE) and earnings per shares (EPS). The study covers all firms being listed in Bahrain Bourse for two years which are 2020 and 2021. The results of the study show that having more directors in RC would significantly increase firm performance “ROE and EPS.” Further, having more females in RC would significantly increase firm performance “ROA.” In addition, having separate RC would significantly decrease firm performance “ROA and EPS.” Moreover, the independence of directors in RC and its frequent meetings has no significant impact on the firm’s performance. The results show that there is a need to re-evaluate the role of the RC and strengthen its effectiveness, as some of the variables examined by this study have an insignificant impact on a firm’s performance. Further, there is a need to allocate additional efforts and policies in developing corporate governance and RCs as well.

Details

Digital Technology and Changing Roles in Managerial and Financial Accounting: Theoretical Knowledge and Practical Application
Type: Book
ISBN: 978-1-80455-973-4

Keywords

Article
Publication date: 10 January 2024

Burcu Üzüm, Osman Seray Özkan and Irene Huertas-Valdivia

A quantitative study sought to better understand responsible leadership (RL) style in the private security sector. The authors analyzed RL’s mediating role in the relationship…

Abstract

Purpose

A quantitative study sought to better understand responsible leadership (RL) style in the private security sector. The authors analyzed RL’s mediating role in the relationship between rules climate (RC) and employees' perceived organizational support (POS).

Design/methodology/approach

The data were collected through an online questionnaire administered to full-time private guards in Ankara (Turkey). A mediation model was proposed, and research hypotheses were tested with structural equation modeling (SEM).

Findings

The results indicate a significant positive relationship between the company’s RC and managers' RL, and a positive significant relationship between managers' RL and employees' POS. RL mediates the relationship between company’s RC and employees' POS.

Research limitations/implications

The theoretical framework draws on conservation of resources (COR) theory to consider RL an effective resource. The organization’s RC was a key factor the affecting leader’s responsible behaviors.

Originality/value

This study explores a thriving leadership style, gaining research attention across fields. To the authors' knowledge, no prior research has studied this leadership style in the security sector. The authors use COR to increase understanding of an important antecedent (company’s RC) and consequence (employees' POS) of RL, highlighting this emerging style’s mediating role.

Propósito

Este artículo de enfoque cuantitativo favorece una mayor comprensión del liderazgo responsable (RL) en el sector de la seguridad privada. Analiza el papel mediador de este estilo de liderazgo en la relación entre un clima de regulación (RC) y la percepción de los trabajadores del apoyo organizacional (POS).

Diseño/metodología/enfoque

Los datos fueron recolectados a través de un cuestionario online que se administró a guardas de seguridad privados empleados a tiempo completo en la región de Ankara (Turquía). Se propone un modelo de mediación y se comprueban las hipótesis propuestas a través de ecuaciones estructurales con el software (SEM).

Resultados

Los resultados obtenidos indican una relación positiva y significativa entre el RC y el liderazgo responsable de los superiores, así como una relación también positiva y significativa entre el RL y la POS de los empleados. Se encuentra que el RL media la relación entre el RC y el POS.

Implicaciones de la investigación

Bajo el marco teórico de la Teoría de Conservación de Recursos (COR) se considera que el RL es un recurso altamente efectivo para las organizaciones. El RC de la organización se perfila como un factor clave que afecta los comportamientos del líder responsable.

Limitaciones del trabajo

El diseño transversal del estudio (datos recogidos en un memento del tiempo) y el uso de una muestra de conveniencia son las principales limitaciones del trabajo.

Originalidad/valor

Este estudio explora un estilo de liderazgo aún desconocido, pero con gran potencial, que está ganando fuerza en el ámbito de la investigación científica en los últimos años. Según nuestro conocimiento, se trata del primer estudio que explora este novedoso estilo de liderazgo en el sector de la seguridad privada. El empleo de la Teoría COR favorece la comprensión del RC como un antecedente de este estilo de liderazgo (RL), y también contribuye a comprender la POS de los empleados como clara consecuencia, destacando el papel mediador de este estilo de liderazgo emergente.

Article
Publication date: 27 November 2023

Maha Assad, Rami Hawileh, Ghada Karaki, Jamal Abdalla and M.Z. Naser

This research paper aims to investigate reinforced concrete (RC) walls' behaviour under fire and identify the thermal and mechanical factors that affect their performance.

Abstract

Purpose

This research paper aims to investigate reinforced concrete (RC) walls' behaviour under fire and identify the thermal and mechanical factors that affect their performance.

Design/methodology/approach

A three-dimensional (3D) finite element (FE) model is developed to predict the response of RC walls under fire and is validated through experimental tests on RC wall specimens subjected to fire conditions. The numerical model incorporates temperature-dependent properties of the constituent materials. Moreover, the validated model was used in a parametric study to inspect the effect of the fire scenario, reinforcement concrete cover, reinforcement ratio and configuration, and wall thickness on the thermal and structural behaviour of the walls subjected to fire.

Findings

The developed 3D FE model successfully predicted the response of experimentally tested RC walls under fire conditions. Results showed that the fire resistance of the walls was highly compromised under hydrocarbon fire. In addition, the minimum wall thickness specified by EC2 may not be sufficient to achieve the desired fire resistance under considered fire scenarios.

Originality/value

There is limited research on the performance of RC walls exposed to fire scenarios. The study contributed to the current state-of-the-art research on the behaviour of RC walls of different concrete types exposed to fire loading, and it also identified the factors affecting the fire resistance of RC walls. This guides the consideration and optimisation of design parameters to improve RC walls performance in the event of a fire.

Details

Journal of Structural Fire Engineering, vol. 15 no. 3
Type: Research Article
ISSN: 2040-2317

Keywords

Article
Publication date: 15 January 2024

Godfred Fobiri, Innocent Musonda and Franco Muleya

Digital data acquisition is crucial for operations in the digital transformation era. Reality capture (RC) has made an immeasurable contribution to various fields, especially in…

Abstract

Purpose

Digital data acquisition is crucial for operations in the digital transformation era. Reality capture (RC) has made an immeasurable contribution to various fields, especially in the built environment. This paper aims to review RC applications, potentials, limitations and the extent to which RC can be adopted for cost monitoring of construction projects.

Design/methodology/approach

A mixed-method approach, using Bibliometric analysis and the PRISMA framework, was used to review and analyse 112 peer-reviewed journal articles from the Scopus and Web of Science databases.

Findings

The study reveals RC has been applied in various areas in the built environment, but health and safety, cost and labour productivity monitoring have received little or no attention. It is proposed that RC can significantly support cost monitoring owing to its ability to acquire accurate and quick digital as-built 3D point cloud data, which contains rich measurement points for the valuation of work done.

Research limitations/implications

The study’s conclusions are based only on the Scopus and Web of Science data sets. Only English language documents were approved, whereas others may be in other languages. The research is a non-validation of findings using empirical data to confirm the data obtained from RC literature.

Practical implications

This paper highlights the importance of RC for cost monitoring in construction projects, filling knowledge gaps and enhancing project outcomes.

Social implications

The implementation of RC in the era of the digital revolution has the potential to improve project delivery around the world today. Every project’s success is largely determined by the availability of precise and detailed digital data. RC applications have pushed for more sustainable design, construction and operations in the built environment.

Originality/value

The study has given research trends on the extent of RC applications, potentials, limitations and future directions.

Details

Journal of Engineering, Design and Technology , vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 11 January 2024

Ahmed Ashteyat, Ala Taleb Obaidat, Yasmeen Taleb Obeidat and Ahmad Bani Awwad

The paper aims to introduces an experimental work to investigate the torsional behavior of reinforced concrete (RC) beams strengthened by near-surface mounted (NSM) carbon…

32

Abstract

Purpose

The paper aims to introduces an experimental work to investigate the torsional behavior of reinforced concrete (RC) beams strengthened by near-surface mounted (NSM) carbon fiber-reinforced polymer (CFRP) ropes.

Design/methodology/approach

In this research, nine rectangular RC beams of 250 mm × 300 mm cross-section and 1,600 mm in length were constructed and tested considering the studied parameters. These parameters include the length of the CFRP rope, the orientation of the CFRP rope, the arrangement of longitudinal and the scheme of NSM-CFRP ropes.

Findings

In comparison to control specimens, the results demonstrate a considerable improvement in the torsional response of RC beams strengthened with the CFRP rope. Additionally, specimens strengthened with 90° vertical ropes increase torsional moment capacity more efficiently than specimens strengthened with 45° inclined ropes since the stress concentration leads to premature debonding of the CFRP rope. Whereas RC beams' ability to withstand torsional moments is reduced as the distance between reinforcing CFRP ropes is increased. According to test results, adding CFRP ropes to RC beams' bottoms had a slightly positive impact on torsional response.

Originality/value

This paper fulfills an identified need to study how the using of the CFRP rope is effective in strengthening RC beam subjected to torsion moment.

Details

International Journal of Building Pathology and Adaptation, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2398-4708

Keywords

Article
Publication date: 22 January 2024

Jieyu Wang and Taiwen Feng

This study aims to investigate how relationship conflict (RC) hinders green customer integration (GCI) and which strategy could be developed to alleviate the negative effect of RC.

Abstract

Purpose

This study aims to investigate how relationship conflict (RC) hinders green customer integration (GCI) and which strategy could be developed to alleviate the negative effect of RC.

Design/methodology/approach

The authors use a sample of 206 Chinese firms to examine hypothesized relationships drawing on social exchange theory and buyer-supplier relationship perspective. Methods including exploratory factor analysis and confirmatory factor analysis are used to assess reliability and validity. Hypotheses are tested using hierarchical regression analysis. Post hoc analysis is adopted to evaluate the robustness.

Findings

The results show that RC negatively relates to GCI. Normative commitment partially mediates the relationship between RC and GCI, while the mediating role of instrumental commitment is insignificant. In addition, coercive influence strategy positively moderates the RC-normative commitment and RC-GCI relationships.

Research limitations/implications

While this study clarifies the mechanism of how RC impedes GCI and how to address RC in buyer-supplier relationships, it could be more meaningful to extend the current research and figure out how to address RC in different supply chain relationships. Besides, it will make sense to conduct longitudinal studies and explore the dynamic nature of RC in supply chain relationships.

Practical implications

In practice, firms find it challenging to achieve GCI owing to the ubiquitous existence of RC. The findings reveal that RC detriments GCI partially through normative commitment, and the use of coercive influence strategy mitigates the detriments of RC. Thus, the authors provide solutions for firms to address RC for achieving GCI.

Originality/value

RC is unavoidable in organizational interactions. Prior studies have not revealed the processes through which RC relates to GCI. The authors bridge the gap by exploring the mediating role of organizational commitment and the moderating role of influence strategy, which offers a better understanding of how RC is associated with GCI, and add knowledge of addressing RC for achieving GCI.

Details

International Journal of Conflict Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1044-4068

Keywords

Article
Publication date: 20 October 2023

Ping Ping Gui, Gazi Mahabubul Alam and Aminuddin Bin Hassan

This comparative study aims to examine the role of Socio-Economic Status (SES) on the academic performance of university students who hold both the status of Residential College …

Abstract

Purpose

This comparative study aims to examine the role of Socio-Economic Status (SES) on the academic performance of university students who hold both the status of Residential College (RC) and non-RC. The study further investigates whether the RC is able to offset the effects of SES on students' learning performance to ensure education equity and inclusion in China.

Design/methodology/approach

Data are collected through a questionnaire given to RC and non-RC students enrolled in three public universities in China. A quasi-experimental design is implemented to investigate the potential correlation, if any, between SES, RC and academic performance.

Findings

The results reveal that SES influences academic performance of RC students. Furthermore, the findings strongly suggest that RCs negatively moderate the effect of SES on academic performance.

Research limitations/implications

This study examines RCs within a specific type of university in China, which may limit the generalizability of findings. Additionally, it uses a quasi-experimental method and relies solely on quantitative data, which may also introduce limitations.

Practical implications

Provided in this study is evidence that RCs can be an innovative way to bolster inclusive and equitable quality education for students from diverse backgrounds in China.

Originality/value

This study enriches the existing literature by exploring the relationships between RC, SES and academic performance in China. In addition, it provides significant references to whether RC can fulfill students' education equity and inclusion.

Details

Journal of Applied Research in Higher Education, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2050-7003

Keywords

Article
Publication date: 3 February 2023

Luca Giraldi, Sofia Coacci and Elena Cedrola

The present article aims to investigate the quality of the relationships in a business partnership for a project in Medtech field and the components that most influence them, with…

Abstract

Purpose

The present article aims to investigate the quality of the relationships in a business partnership for a project in Medtech field and the components that most influence them, with special attention to relational capabilities (RCs). Dyadic relationships and mainly RCs are considered critical factors for the success of a partnership.

Design/methodology/approach

A case study was used to evaluate the influence of RC on the progress of an alliance between a start-up and a small and medium scale enterprise (SME). The evaluation is performed using a questionnaire. To highlight such progress, the same questions were asked at the start of the partnership and one year later. The results were compared to analyse the improvement of RC and draw conclusions on the correlation between RC and alliance performance.

Findings

The method adopted allowed for a clear identification of the criticalities of the partnership. The authors found evidence that poor RCs lead to confusion, a sense of exclusion and a lack of collaboration amongst members. Results confirmed that increased RC and aligning the allies' capabilities positively affect the alliance's performance.

Research limitations/implications

Exogenous variables influencing the partnership's progress were not included in the present study. Future research may consider them.

Originality/value

Limited prior research is available on collaboration between SME and start-ups. The present authors aim to investigate the topic further, investigating RCs between firms. The article is also a starting point for future case study comparisons.

Details

International Journal of Productivity and Performance Management, vol. 73 no. 2
Type: Research Article
ISSN: 1741-0401

Keywords

Article
Publication date: 14 March 2023

Arifur Khan, Sutharson Kanapathippillai and Steven Dellaportas

The purpose of this study is threefold: to examine the impact of a remuneration committee (RC) on the level of chief executive officer (CEO) remuneration; whether firms with a RC

Abstract

Purpose

The purpose of this study is threefold: to examine the impact of a remuneration committee (RC) on the level of chief executive officer (CEO) remuneration; whether firms with a RC, pay a premium to CEOs with different skill sets (general or specific); and whether a pay premium mitigates the potential for CEO turnover.

Design/methodology/approach

This study uses a sample of 5,305 firm-year observations on a data set drawn from companies listed on the Australian Securities Exchange for the period 2007 to 2014. The authors use ordinary least squares as well as logit regression techniques to test the formulated hypotheses. Difference in difference and propensity score matching techniques were undertaken to address the endogeneity concerns.

Findings

The findings show that firms with a RC pay a higher total remuneration to CEOs compared to firms without a RC. Furthermore, firms with a RC, value and reward CEOs with general skills by paying a premium not offered to CEOs with industry-specific skills. Paying a premium, in turn, mitigates CEO turnover by strengthening the CEO’s commitment to the organisation.

Originality/value

The study helps us to understand the critical role played by the RC in the remuneration of CEOs. The findings show that RCs act as an effective governance mechanism to deal with issues of executive remuneration and to retain skilled CEOs. Additionally, CEOs who acquire and develop general managerial skills will be able to extract higher pay from improved bargaining power. The findings will be of relevance to shareholders, regulators and company management who have an interest in executive pay and performance.

Details

Meditari Accountancy Research, vol. 32 no. 2
Type: Research Article
ISSN: 2049-372X

Keywords

1 – 10 of over 4000