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  • 1
    Online Resource
    Online Resource
    Progressive Collapse Assessment: A review of the current energy-based Alternate Load Path (ALP) method
    EDP Sciences ; 2019
    In:  MATEC Web of Conferences Vol. 258 ( 2019), p. 02012-
    Details
    In: MATEC Web of Conferences, EDP Sciences, Vol. 258 ( 2019), p. 02012-
    Abstract: The Alternate Load Path (ALP) is a useful method that has generated a considerable recent research interest for the assessment of progressive collapse. The outcome of the ALP analysis can be assessed either using the force-based approach or the energy-based approach. The Unified Facilities Criteria (UFC- 4- 023-03) of progressive collapse guideline - have outlined that the force-based approach can either be analysed using static or dynamic analysis. The force-based approach using static analysis is preferable as it does not require a high level of skill and experience to operate the software plus no effort is required in scrutinising the validity of the analysis results output. However, utilising the static approach will eliminate the inertial effect in capturing the actual dynamic response of the collapsed structure. In recent years, the development of the energy-based progressive collapse assessment is attracting widespread interest from researchers in the field; as the approach can produce a similar structural response with the force-based dynamic analysis by only using static analysis. Most of the current energy-based progressive collapse assessments are developed following the requirements which are given in the progressive collapse guidelines provided by the Unified Facilities Criteria. However, little attention is given to the development of the energy-based approach using the Eurocode standards as a base guideline. This article highlights the merits of utilising the energy-based approach against the force-based approach for a collapsed structure and explains the collapse mechanism of a steel frame in the perspective of the energy concept. The state of the art of energy-based progressive collapse assessment for a structural steel frame is reviewed. The comprehensive review will include insights on the development of the energy-based method, assumptions, limitations, acceptance criterion and its applicability with the European standards. Finally, potential research gaps are discussed herein.
    Type of Medium: Online Resource
    ISSN: 2261-236X
    URL: Article
    DOI: 10.1051/matecconf/201925802012
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2019
    detail.hit.zdb_id: 2673602-0
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  • 2
    Online Resource
    Online Resource
    Analytic Rubric in Evaluating the Continuous Assessment in Projects of Civil Engineering Undergraduate Students in Dynamics Subject
    UiTM Press, Universiti Teknologi MARA ; 2021
    In:  Asian Journal of University Education Vol. 17, No. 4 ( 2021-11-25), p. 352-
    Details
    In: Asian Journal of University Education, UiTM Press, Universiti Teknologi MARA, Vol. 17, No. 4 ( 2021-11-25), p. 352-
    Abstract: Abstract: This paper presents the assessment of a continuous assessment in a project for the Dynamics subject using an analytic rubric. Dynamics subject should improve the ability of students to evaluate and solve problems using well-understood basic concepts implemented in a simple logical manner. It focuses on the proper interpretation and application of the concepts of mechanics to the solution of engineering problems. To achieve the objective of being able to examine the issue of mechanics, students were asked to prepare a poster that must consist of the real-life application of dynamics, which they must incorporate in the sense of their poster the definition plus the use of basic fundamental principles. An analytic rubric was used as a scaffold in the evaluation of the continuous assessment of undergraduate students of civil engineering in the Dynamics subject. The continuous assessment referred to was the evaluation of a project called 'Poster Dynamics in Life.' Using analytic rubrics, lecturers in this engineering subject (Dynamics) may specifically list evaluation criteria to improve the synchronization of learning, instruction, and assessment. Besides, students may then use the rubric to organize their assigned project,  describe goals,  define and concentrate efforts where appropriate,  identify concerns relevant to the project, and  control the process in an attempt to construct a high-quality project. The results from this assessment show that most of the students achieved all the performance criteria at an acceptable level. Keywords: Undergraduates, Program outcomes, Dynamics subject, Assessment, Rubrics
    Type of Medium: Online Resource
    ISSN: 2600-9749 , 1823-7797
    URL: Issue
    URL: Article
    DOI: 10.24191/ajue.v17i4
    DOI: 10.24191/ajue.v17i4.16221
    Language: Unknown
    Publisher: UiTM Press, Universiti Teknologi MARA
    Publication Date: 2021
    detail.hit.zdb_id: 2604057-8
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  • 3
    Online Resource
    Online Resource
    Novel soft members in double-layer space trusses
    EDP Sciences ; 2019
    In:  MATEC Web of Conferences Vol. 258 ( 2019), p. 04009-
    Details
    In: MATEC Web of Conferences, EDP Sciences, Vol. 258 ( 2019), p. 04009-
    Abstract: Progressive collapse of space structures has received much attention in recent years due to the recent failure of a double-layer space truss (DLST) stadium in Terengganu, Malaysia which collapse twice in Year 2009 and 2013. There is a considerable interest in understanding the collapse behaviour of space structures and possibility of improving its collapse behaviour. This phenomenon was demonstrated by earlier researchers, such as Collins (1981) and Parke (1988) which investigated the collapse behaviour both theoretically and experimentally. In their study a carefully designed DLST structure may possess reserve of strength in excess of their elastic capacity. Although DLST have a high degree of statically degree of statically indeterminacy, not all of them are robust, as it has been found a loss of one critical member could trigger the collapse of the entire structure. Usually the collapse of the DLST is influenced by the ductility behaviour of the compression members. The aim of this study was to investigate the use of novel soft member to reduce the catastrophic progressive collapse behaviour of DLSTs. A novel soft member was constructed to measure its behaviour under tensile and compressive loads. The term novel soft member used in this study is referred to a combination of three circular tubes which is made into one component and is used to support compressive load. It was found that using a blend of three circular tubes significantly increase the ductility behaviour of the member. These test illustrates that while the inner and outer tube experience compressive forces, the middle tube will continue to increase linearly. This indicates that there is a possibility of improving the collapse behaviour of DLST by incorporating the novel soft member.
    Type of Medium: Online Resource
    ISSN: 2261-236X
    URL: Article
    DOI: 10.1051/matecconf/201925804009
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2019
    detail.hit.zdb_id: 2673602-0
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  • 4
    Online Resource
    Online Resource
    The development of a moment-rotation model for progressive collapse analysis under the influence of tensile catenary action
    Elsevier BV ; 2021
    In:  Journal of Constructional Steel Research Vol. 187 ( 2021-12), p. 106960-
    Details
    In: Journal of Constructional Steel Research, Elsevier BV, Vol. 187 ( 2021-12), p. 106960-
    Type of Medium: Online Resource
    ISSN: 0143-974X
    URL: Article
    DOI: 10.1016/j.jcsr.2021.106960
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2021
    detail.hit.zdb_id: 1498182-8
    detail.hit.zdb_id: 164713-1
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  • 5
    Online Resource
    Online Resource
    Progressive Collapse of a Single Layer Schwedler Dome
    Penerbit UTHM ; 2021
    In:  International Journal of Integrated Engineering Vol. 13, No. 3 ( 2021-06-10)
    Details
    In: International Journal of Integrated Engineering, Penerbit UTHM, Vol. 13, No. 3 ( 2021-06-10)
    Abstract: Large span domes have always drawn architects’ and engineers’ interest as they provide as easy method of roofing large areas with architectural beauty. Single layer Schwedler Dome composed of Circular Hot Hollow Frame (CHHF) is investigated to understand the effects of individual member removal to the behaviour and stability of single layer dome. The major issues of the structural system are related to its instability phenomena whereby it is vulnerable to snap through buckling. The failure of space structure such as Sultan Zainal Abidin Stadium and Bucharest Dome clearly show an understanding of such failure and the behaviour of the space structure is important to develop a safer structure especially in the future. This study deals with a single layer dome having a diameter of 52 m and the span to depth ratio of ½. The loads subjected on the nodes of the structure consists of dead, live and wind loads and assumed to be 1kN each. Due to the symmetric geometry of the dome, the removals were done on the quarter section of the dome only assumed that the loads distribution patterns are similar for each section. This study required 210 members’ removals and the result obtained has been analysed thoroughly. In order to achieve the objectives of the research, computer programming such as FORMIAN, AutoCAD and SAP2000 V18 have been used to generate the geometry of the dome and afterwards analysed the stability of the structure. The numerical technique is based on redistribution of internal loadings due to member’s failure. Critical members are determined by analyzing the Demand Capacity Ratio (DCR) value of each member and identifying the number of overstressed neighboring members. When the internal load of a neighboring member exceeds its loading capacity, the member becomes overstressed and fails which may lead to major collapse of the entire structure. The value of the DCR and the numbers of overstressed members existed in the structure after the removals show the criticality of the section. As a conclusion, this critical area must be considered during analysis, design and construction stage of the dome.
    Type of Medium: Online Resource
    ISSN: 2229-838X , 2600-7916
    URL: Issue
    URL: Journal
    URL: Article
    DOI: 10.30880/ijie.2021.13.03
    DOI: 10.30880/ijie
    DOI: 10.30880/ijie.2021.13.03.021
    Language: Unknown
    Publisher: Penerbit UTHM
    Publication Date: 2021
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  • 6
    Online Resource
    Online Resource
    Axial-Shear-Flexural Interaction Behavior of a Double-Span Steel Beam Under a Column-Loss State Using the Pushdown Method
    Springer Science and Business Media LLC ; 2023
    In:  International Journal of Steel Structures Vol. 23, No. 3 ( 2023-06), p. 675-691
    Details
    In: International Journal of Steel Structures, Springer Science and Business Media LLC, Vol. 23, No. 3 ( 2023-06), p. 675-691
    Type of Medium: Online Resource
    ISSN: 1598-2351 , 2093-6311
    URL: Article
    DOI: 10.1007/s13296-023-00721-7
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 2559684-6
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  • 7
    Online Resource
    Online Resource
    A mockup unit of the an-eco budget bamboo chalet: design and cost estimation analysis
    EDP Sciences ; 2019
    In:  MATEC Web of Conferences Vol. 258 ( 2019), p. 01010-
    Details
    In: MATEC Web of Conferences, EDP Sciences, Vol. 258 ( 2019), p. 01010-
    Abstract: To succeed by 2050, Malaysia visions would need to be ecologically sustainable. To align with this strategy, a mock-up unit of an-eco budget bamboo chalet is proposed and designed with the aim to provide an affordable and sustainable chalet using local sustainability features and expand the use of natural resources. A sustainable bamboo chalet requires proper initial treatments and preservation in maintaining its esthetic appearance and strength. Otherwise, it can be less durable and under certain circumstances would incur high maintenance cost to the owner. In this study, the proposed unit of an eco-budget bamboo chalet is designed and analyzed using the Staad Pro V8i software. The projection cost of the bamboo chalet in the next 25 years is studied comparatively in which involves a comparison of using a different material, i.e. concrete with the same built-up area. The bamboo chalet had a built-up land area of approximately 7.5 m x 7 m (53 m 2 ) and is made of 95% bamboo which comprises of two different species, i.e. Bambusa Vulgaris and Dendrocalamus Asper Bamboo. The results showed that construction material of the chalet saves up to 18% more when using bamboo compared to concrete. However, the total projected cost of the chalet for the next 25 years by using bamboo was 14% higher compared to concrete. Therefore, emphasis on the usage of bamboo for long-term strategy is required to maintain and control the gradual trend cost incurred if green building is to be built in Malaysia.
    Type of Medium: Online Resource
    ISSN: 2261-236X
    URL: Article
    DOI: 10.1051/matecconf/201925801010
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2019
    detail.hit.zdb_id: 2673602-0
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  • 8
    Online Resource
    Online Resource
    Evacuation egress in high rise building: Review of the current design evacuation solution
    EDP Sciences ; 2019
    In:  MATEC Web of Conferences Vol. 258 ( 2019), p. 03012-
    Details
    In: MATEC Web of Conferences, EDP Sciences, Vol. 258 ( 2019), p. 03012-
    Abstract: In the aftermath of the September 11 th attack, design of tall buildings particularly in the aspect of safety systems and structural robustness, arguably the most crucial issues that is deliberated till to date. Concerning the safety systems specifically on evacuation egress, many novels and innovative evacuation solutions for high rise buildings that have been researched and put forward, for instances Platform Rescue Systems (PRS), Controlled Descent Devices (CDD) and Escape Chutes. Still, the practicability of the existing proposed egress systems to be implemented in the real-life situation and its compliance with the tall building design legislation remain unknown. For developing countries such as Malaysia and United Arab Emirates, tall buildings play a role as an iconic landmark. While countries like China and Hong Kong, tall building is needed due to the scarcity of land and high populations. As more than one hundred tall structure exists in the world, and will be increasing by 2020; therefore, it is urgently needed that existing engineering practices in designing tall building to be reviewed with respect to evacuation egress. The main objective of this paper is to create awareness among developers, consultants and contractors that proper evacuation egress in tall building design and development is a must. This paper provides a comprehensive review of the existing engineering practices on tall building evacuation planning systems and design. Furthermore, the effectiveness of the currently proposed systems and its consideration amongst structural and safety engineers are also reported.
    Type of Medium: Online Resource
    ISSN: 2261-236X
    URL: Article
    DOI: 10.1051/matecconf/201925803012
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2019
    detail.hit.zdb_id: 2673602-0
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  • 9
    Online Resource
    Online Resource
    Optimization of Bolted Connection in Steel Corbel Attach to RC Column of MRT Viaduct
    IOP Publishing ; 2021
    In:  IOP Conference Series: Materials Science and Engineering Vol. 1200, No. 1 ( 2021-11-01), p. 012013-
    Details
    In: IOP Conference Series: Materials Science and Engineering, IOP Publishing, Vol. 1200, No. 1 ( 2021-11-01), p. 012013-
    Abstract: MRT is one of the backbones of a city’s public transportation system, capable of carrying large crowds. The use of a portal frame in the design of an MRT train station has raised significant concerns about how the portal frame’s load will be supported by the extended structure element known as a corbel. A corbel is a protruding structural element that supports weights like primary beams and girders. Engineers must then decide how to properly bolt the steel corbel structure to the concrete pier segment or columns. Generally, most corbel structure designs were constructed of concrete; however, in this study corbel design was made of steel so that the steel portal frame could rest on the corbel structure, allowing for more usable area on the platform, such as kiosks and other amenities. Optimization of end plate thickness and beam web thickness is carried out. Manual calculations are used in addition to FEA modeling to examine the bolt’s deflection, shear, bearing, tension, slip, and block tearing resistance. When using Eurocode, all three loadings, transverse force, vertical force, and transverse moment, produce values that are 10% lower than the British Standard. As a result, designers can optimize their designs using Eurocode.
    Type of Medium: Online Resource
    ISSN: 1757-8981 , 1757-899X
    URL: Article
    DOI: 10.1088/1757-899X/1200/1/012013
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2021
    detail.hit.zdb_id: 2506501-4
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