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Procurement of beams in multiple D&B bridge projects
Ramanathan, Ct1, Narayanan, S.P2, Taharin, M.R3.
Selected infrastructure development projects are being implemented by Design and Build (D&B)
procurement system in Sabah (East Malaysia) by the Public Works Department (PWD). In the first
phase 45 bridge replacement projects were awarded in 5 packages. These simultaneous multiple
Bridge projects are for the development of the backward areas and hence their timely completion is
utmost important. Procurement and production of bridge beams have been the critical element of
construction in these rural areas and no researches has been reported on various aspects of procurement of the bridge beams in multiple D&B projects. The aspects of procurement researched in this work include the determination of a common beam element for the ease of procurement and the optimization of the construction methodology, the finalization and purchasing plate dimensions to suite the manufacturer’s production range, the delivery of materials, the planning and monitoring of fabrication, the preparation and assembly, and the erection and launching of beams. The beams are optimized using element optimization techniques. The most important problems in fabricating steel girders were in planning and scheduling of materials for the fabrication and the fabrication process. Findings in all the aspects of production of steel girders are highlighted through a case study of six long span bridges at various locations in Sabah. Solutions drawn from lessons learnt which minimize wastages, and aids in timely completion of beams in multiple bridge construction are discussed.
Affiliation:
- Kumpulan Liziz Sdn Bhd, Malaysia
- Universiti Teknologi PETRONAS, Malaysia
- Universiti Malaysia Sabah, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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3 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (1.5) |
Rank |
Q1 (Architecture) Q2 (Urban Studies) Q3 (Nature and Landscape Conservation) Q3 (Building and Construction) |
Additional Information |
SJR (0.292) |
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