Abstract
The lower structure of a steel bridge is one of the essential elements of a whole steel bridge structure. The construction works of this structure are complex and extensive. In the process of planning the construction works for this element, thorough and well-designed plan is vital in order to avoid construction failures or defects that could lead to project failure. Therefore, in the construction planning process for the lower structure steel bridge, a detailed construction process and activities, including its resources are needed for guiding the process effectively and comply with the project requirements. The decomposition of the construction works into work packages is important to minimize mistakes, which is by using a definitive work breakdown structure (WBS) and its detailed dictionary for each work packages. The objective of this study is to develop the WBS dictionary based on the defined WBS, for each construction work elements in the lower structure steel bridge. The study used Delphi method and expert validation as its methodology. The result provides the WBS dictionary that specifies the construction works of lower structure steel bridge into four (4) levels of WBS and two (2) supplementary levels of detailed activities and resources.
Highlights
Steel frame bridges with the main principle of triangular configuration elements are widely used in bridge construction
Steel frame bridges are considered more advantageous compared to other bridge construction systems because steel frame rods only accept tensile and compressive forces resulting in a stable shape
Unclear job descriptions can result in project losses, scalable and uncontrolled project scope, project cost swelling, errors in determining project time targets resulting in delays in the construction process of a project due to the timing of project implementation [3]
Summary
Steel frame bridges with the main principle of triangular configuration elements are widely used in bridge construction. In the process of achieving the final outcome, project activities are limited by budget, schedule and quality, known as triple constraints. Unclear job descriptions can result in project losses, scalable and uncontrolled project scope, project cost swelling, errors in determining project time targets resulting in delays in the construction process of a project due to the timing of project implementation [3]. It needs a standard or guideline used in planning to avoid problems that could hamper the project
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