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Article
Publication date: 9 December 2021

Riza Suwondo, Lee Cunningham, Martin Gillie, Made Suangga and Irpan Hidayat

The robustness of building structures in a fire has recently drawn wide attention. This study presents the progressive collapse analysis of steel frame building structures…

Abstract

Purpose

The robustness of building structures in a fire has recently drawn wide attention. This study presents the progressive collapse analysis of steel frame building structures under localised fire. The main objective of this study is to propose methods to enhance the structural collapse resistance of such structures in fire.

Design/methodology/approach

A modelling method was developed and validated against both experimental and analytical studies. Then, a series of robustness analyses were performed to investigate the interaction among the members and the pattern of load distribution within the structures. These analyses show that lateral resistance and load redistribution have a vital role in the robustness of the building. Thus, two approaches have been adopted to enhance the robustness of the focused steel frame during a fire.

Findings

It is found that increased size of floor beams and vertical bracing systems are effective measures in preventing whole structure collapse. The larger beam section is able to prevent catenary action so that the load in the failed columns can safely transfer to the adjacent columns without buckling. On the other hand, the bracing system improves the lateral resistance that can accommodate the lateral force when catenary action occurs in the beam.

Originality/value

Previous studies have focused on the collapse mechanism of steel frame structures. However, the parameters affecting the structural robustness in a fire have not yet been explored. To address this gap, this study adopted numerical modelling to undertake parametric studies to identify effective methods to improve the robustness of such structures under fire conditions.

Details

Journal of Structural Fire Engineering, vol. 13 no. 3
Type: Research Article
ISSN: 2040-2317

Keywords

Article
Publication date: 8 August 2018

Refniza Yanti, Almasdi Syahza, Achmad Hidir and Suwondo Suwondo

The purpose of this paper is to do an in-depth comprehension about local wisdom values related to the forest management in Nagari Koto Malintang, Tanjung Raya District…

Abstract

Purpose

The purpose of this paper is to do an in-depth comprehension about local wisdom values related to the forest management in Nagari Koto Malintang, Tanjung Raya District, Agam Regency, West Sumatra Province, and to find a communication model in the forest management based on environmental awareness. Research on indigenous forest management has been widely done, but information related to information flow and communication pattern of indigenous people in conveying local wisdom values to the management of forests is little to find.

Design/methodology/approach

The design employed in this research was case study and field research. Field research is the research to intensively examine the background of current state of the environmental interaction according to these social units: individual, group, institution or society. The research was undertaken in Nagari Koto Malintang, Tanjung Raya District, Agam Regency. The location selection was conducted purposively under the preserved condition of the forests in Koto Malintang, despite the damages occurring to most of forests in Indonesia. The preserved condition of Nagari Koto Malintang forest is characterized by many trees with diameter of 2–3 meters left undisturbed by the communities, so that they are protected from the danger of landslides. The determination of informants in this research was made by purposive sampling.

Findings

The community and government of Nagari Koto Malintang has arranged the space and land of Nagari, by making a division as follows: the upper area is made into catchment area, middle area is made into a plantation area and settlement area and the lower area is made into cultivated land. The ecologic benefits of the forest for the community of Nagari Koto Malintang are: liberating the community from the threats of flood and galodo, providing sufficient water availability, providing good air quality and maintain and preserve flora and fauna. The perceived economic benefits are: the availability of adequate irrigation for agriculture, plantations, tabek and ponds of which crops provide economic benefits to the community. Socially, forests make the community members’ relationship grow closer, improve community participation in forest management, create jobs and maintain local knowledge and institutions.

Originality/value

This is one of few studies resulted from different customs and norms of each indigenous community, thus it is necessary to study the uniqueness of Nagari Koto Malintang community in managing the forest. This research was conducted to obtain complete description of how indigenous people of Nagari Koto Malintang community build communications and disseminate information related to wisdom, thus giving rise to common awareness in the sustainable forest management and ultimately bringing up a model of forest management communication.

Details

Management of Environmental Quality: An International Journal, vol. 29 no. 6
Type: Research Article
ISSN: 1477-7835

Keywords

Open Access
Article
Publication date: 11 August 2020

Wawan Kurniawan, Agus Suwandono, Bagoes Widjanarko, Ari Suwondo, Wayan Tunas Artama, Zahroh Shaluhiyah, Mateus Sakundarno Adi and Muchlis Achsan Udji Sofro

The purpose of this study was to apply the OH-SMART approach on dengue vector control and assess the influence on knowledge, attitude, practice (KAP) amongst elementary…

1261

Abstract

Purpose

The purpose of this study was to apply the OH-SMART approach on dengue vector control and assess the influence on knowledge, attitude, practice (KAP) amongst elementary students in Majalengka as well as check the dengue serotypes distribution.

Design/methodology/approach

This study was designed by sequential exploration. An OH-SMART workshop involving local government institutions, schools, colleges and health professional organizations was conducted. A total of 334 elementary students, chosen by cluster sampling, participated including 171 in the intervention group and 163 in the control group. A self-administered questionnaire was used to assess the differences in the subject's KAP. Dengue serotypes were analyzed by reverse transcription–polymerase chain reaction (RT-PCR), and the distribution was measured by GPS. Descriptive statistics, paired t-test and the Wilcoxon rank test were used for data analysis.

Findings

There were eight gaps in Dengue vector control in Majalengka and three main recommendations after the OH-SMART workshop i.e. the formation of OH-teams, the preparation of module training, and training of vector control in the schools. After the program, there were statistically significant differences between the intervention and control groups (p = 0,001, CI 95%). All differences in the intervention group were higher than in the control. The most commonly found dengue serotype was DEN-1.

Originality/value

OH-SMART has never been applied in Indonesia, especially in a local government setting but is recognized as an effective approach in the prevention of vector-borne disease and zoonotic.

Details

Journal of Health Research, vol. 35 no. 1
Type: Research Article
ISSN: 0857-4421

Keywords

Article
Publication date: 17 August 2021

Amit Chandra, Anjan Bhowmick and Ashutosh Bagchi

The study investigates the performance of a three-story unprotected steel moment-resisting frame (SMRF) designed for high seismic demand in the fire-only (FO) and…

Abstract

Purpose

The study investigates the performance of a three-story unprotected steel moment-resisting frame (SMRF) designed for high seismic demand in the fire-only (FO) and post-earthquake uniform and traveling fires (PEF). The primary objective is to investigate the effects of seismic residual deformation on the structure's performance in horizontally traveling fires. The traveling fire methodology, unlike conventional fire models, considers a spatially varying temperature environment.

Design/methodology/approach

Multi-step finite element simulations were carried out on undamaged and damaged frames to provide insight into the effects of the earthquake-initiated fires on the local and global behavior of SMRF. The earthquake simulations were conducted using nonlinear time history analysis, whereas the structure in the fire was investigated by sequential thermal-structural analysis procedure in ABAQUS. The frame was subjected to a suite of seven ground motions. In total, four horizontal traveling fire sizes were considered along with the Eurocode (EC) parametric fire for a comparison. The deformation history, axial force and moment variation in the critical beams and columns of affected compartments in the fire heating and cooling regimes were examined. The global structural performance in terms of inter-story drifts in FO and PEF scenarios was investigated.

Findings

It was observed that the larger traveling fires (25 and 48%) are more detrimental to the case study frame than the uniform EC parametric fire. Besides, no appreciable difference was observed in time and modes of failure of the structure in FO and PEF scenarios within the study's parameters.

Originality/value

The present study considers improved traveling fire methodology as an alternate design fire for the first time for the PEF performance of SMRF. The analysis results add to the much needed database on structures' performance in a wide range of fire scenarios.

Details

Journal of Structural Fire Engineering, vol. 12 no. 4
Type: Research Article
ISSN: 2040-2317

Keywords

Open Access
Book part
Publication date: 4 May 2018

Eka Maida, Adhiana and Zuriani

Purpose – The purpose of this research is to examine the diversity of macrozoobenthos as well as its relationship with water quality and substrate in the pond culture area.…

Abstract

Purpose – The purpose of this research is to examine the diversity of macrozoobenthos as well as its relationship with water quality and substrate in the pond culture area.

Design/Methodology/Approach – The method of sampling area is on five observation stations by purposive sampling. The research was done indirectly (ex situ) for macrozoobenthic identification at the Ecology Laboratory, Faculty of Mathematics and Natural Sciences.

Findings – The fairness/uniformity index obtained from the five research stations ranging from 0.483 to 0.923 indicates a high degree of uniformity. This indicates that the macrozoobenthos biological index at the study site can be used as an indicator that water quality is in good condition and has the potential to be developed into an aquaculture area as well as supporting the success of the shrimp farming as one of the sub-systems of the shrimp agribusiness.

Research Limitations/Implications – This research can be a source of information for the management and utilization of environment in the research area, so that shrimp harvest can be optimized in the pond farming area.

Originality/Value – This research has found that macrozoobenthos included 61 species.

Details

Proceedings of MICoMS 2017
Type: Book
ISBN:

Keywords

Book part
Publication date: 21 July 2011

Jon S.T. Quah

Willard A. Hanna's astute observation above about the institutionalization of corruption in Indonesia was published in August 1971, five years after President Soeharto…

Abstract

Willard A. Hanna's astute observation above about the institutionalization of corruption in Indonesia was published in August 1971, five years after President Soeharto assumed power. The origins of corruption in Indonesia can be traced to the Dutch colonial period as bribery was rife among the lowly paid personnel of the Dutch East India Company (Day, 1966, pp. 100–103). However, corruption became institutionalized during President Soeharto's 32-year reign as his cronies and family “made an art form of creaming off many of Indonesia's most profitable ventures … while being protected by monopoly regulations and their relationship to the president” (Kingsbury, 1998, p. 202). Raymond Bonner (1988, p. 80) has used the euphemism “the family business” to describe “the corruption surrounding members of the Suharto family,” which was “a public secret” in 1988.

Details

Curbing Corruption in Asian Countries: An Impossible Dream?
Type: Book
ISBN: 978-0-85724-819-0

Article
Publication date: 3 September 2020

Morteza Jamshidi, Heydar Dashti NaserAbadi and Mohammadreza Oliaei

The high heat induced by fire can substantially decrease the load-bearing capacity, which is more critical in unprotected steel structures than concrete reinforced…

Abstract

Purpose

The high heat induced by fire can substantially decrease the load-bearing capacity, which is more critical in unprotected steel structures than concrete reinforced structures. One of the conventional steel structures is a steel-plate shear wall (SPSW) in which thin infill steel plates are used to resist against the lateral loads. Due to the small thickness of infill plates, high heat seems to dramatically influence the lateral load-bearing capacity of this type of structures. Therefore, this study aims to provide an investigation into the performance of SPSW with reduced beam section at high temperature.

Design/methodology/approach

In the present paper, to examine the seismic performance of SPSW at high temperature, 48 single-span single-story steel frames equipped with steel plates with the thicknesses of 2.64 mm, 5 mm and 7 mm and yield stresses of 85 MPa, 165 MPa, 256 MPa and 300 MPa were numerically modeled. Furthermore, their behavioral indices, namely, strength, stiffness, ductility and hysteresis behavior, were studied at the temperatures of 20, 458, 642 and 917? The simulated models in the present paper are based on the experimental specimen presented by Vian and Bruneau (2004).

Findings

The obtained results revealed that the high heat harshly diminishes the seismic performance of SPSW so that the lateral strength is reduced even by 95% at substantially high temperatures. Therefore, SPSW starts losing its strength and stiffness at high temperature such that it completely loses its capacity of strength, stiffness and energy dissipation at the temperature of 917? Moreover, it was proved that by separating the percentage of their participations variations of the infill plate in SPSW, their behavior and the bare frame can be examined even at high temperatures.

Originality/value

To the best of the authors’ knowledge, the seismic performance of SPSW at different temperatures has not been evaluated and compared yet.

Details

Journal of Structural Fire Engineering, vol. 11 no. 4
Type: Research Article
ISSN: 2040-2317

Keywords

Article
Publication date: 20 January 2020

Almasdi Syahza and Brilliant Asmit

This paper aims to present the development of palm oil sector and future challenge in Riau Province Indonesia, which includes sustainable plantation development.

391

Abstract

Purpose

This paper aims to present the development of palm oil sector and future challenge in Riau Province Indonesia, which includes sustainable plantation development.

Design/methodology/approach

This research was conducted through a survey with developmental research method. The research location is in the Province of Riau, which is the potential development of oil palm plantation. The land areas of Riau are Kampar, Rokan Hulu and Kuantan Singingi, while the coastal areas are Pelalawan, Siak, Bengkalis, Indragiri Hilir, Indragiri Hulu and Rokan Hilir. The socio-economic and environmental aspects of sustainability level of palm oil plantations were analyzed using a multi-dimensional scaling approach that was modified into a Rap-Insus-Pom.

Findings

Development of palmoil plantations results in land conversion, posing potential erosio. In anticipating environmental damage, the Government of Indonesia imposes the Indonesian Sustainable Palm Oil (ISPO) policy. The results of ISPO policy show that Indonesian crude palm oil products are environmentally friendly.

Originality/value

This research is one of few studies that investigate the development of palm oil sector and future challenge in Riau Province, Indonesia. Riau Province still needs 13 units of palm oil mills with capacity of 60 tons per hour. Find strategies to regulate palm oil farming institutions and derivative products to enhance growth and economic development in the region and find production centers and development areas for palm oil local industries in potential regions.

Details

Journal of Science and Technology Policy Management, vol. 11 no. 2
Type: Research Article
ISSN: 2053-4620

Keywords

Article
Publication date: 22 July 2021

Meysam Soltaninejad, Amir Faraji and Esmatullah Noorzai

The purpose of this study is to introduce and evaluate the effect of critical success factors (CSF) in rescue operations in burning buildings by calculating the partial…

Abstract

Purpose

The purpose of this study is to introduce and evaluate the effect of critical success factors (CSF) in rescue operations in burning buildings by calculating the partial least squares structural equation modeling of PLS-SEM.

Design/methodology/approach

To do this, success criteria (SC) and CSF in the literature, which are related to the topic, articles, standards and relevant books, will be identified and then evaluated through the extended PLS-SEM model.

Findings

The results show that technological factors, awareness, resources and safety play an effective role in successful performance management in fire accidents.

Research limitations/implications

Appropriate use of these factors will promote incident management and decrease casualties and financial loss in the event of accidents.

Originality/value

Fire-fighting is of great importance, especially in tall and complex buildings. In recent years, extended studies have been carried out regarding fire accident management in terms of CSFs in the category of rescue and firefighting. However, attention has not been paid to the relation and severity of impact between SC and CSF by researchers in addition to the identification of the most important criteria during rescue operations.

Details

Facilities , vol. 39 no. 13/14
Type: Research Article
ISSN: 0263-2772

Keywords

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