Scaffolding Component Scheduling for Industrial Plant Construction
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Solution Overview
Problem
The construction of large-scale industrial plants like petroleum refineries faces challenges in accurately estimating and managing scaffolding costs and timelines due to the complexity and scale of the projects, often resulting in costly delays and inefficiencies in the supply and assembly of scaffolding units.
Innovation Solution
A method involving the creation of a 3D construction plan and schedule that specifies scaffolding unit requirements, erection and dismantling times, and calculates the necessary number of scaffolding components for each time interval, allowing for optimized procurement and assembly, including a buffer to prevent shortages and delays, utilizing computer software for efficient communication and logistics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If scaffolding components are arbitrarily determined by experience or by analyzing all parts required for simultaneous completion of all sections, then the construction project can proceed, but the initial cost estimates are exceeded and costly delays occur
Solution Approach 1:
The construction project is divided into multiple geographic sections, and the scaffolding supply chain is segmented into discrete time intervals. This allows for independent analysis and optimization of each section's scaffolding requirements, enabling precise cost estimation without being overwhelmed by the overall project complexity.
Solution Approach 2:
The method performs preliminary calculation of scaffolding component requirements by analyzing the construction schedule and determining the maximum number of components needed simultaneously. This advance planning allows for accurate cost estimation and procurement planning before construction begins, preventing cost overruns and delays.
2Productivity
If the maximum number of scaffolding components is calculated considering erection and dismantling times across all time intervals, then component availability is optimized, but the calculation and planning complexity increases
Solution Approach 1:
The method dynamically adjusts the scaffolding component requirements calculation by considering the temporal dimension of erection and dismantling operations. The system evaluates component needs across multiple time intervals, accounting for when scaffolding is assembled and disassembled in different construction sections, thereby optimizing component availability without requiring excessive inventory.
Solution Approach 2:
The construction schedule and scaffolding requirements are modeled computationally, creating a virtual representation of the construction process. This digital model allows for automated calculation of maximum component requirements without manual complex computations, reducing planning complexity while maintaining high productivity.
3Adaptability or versatility
If scaffolding units are assembled from individual components on-site, then flexibility in construction is maintained, but the risk of costly delays due to component shortages increases
Solution Approach 1:
The method determines the maximum number of scaffolding components required simultaneously across all construction sections and time intervals before construction begins. This preliminary calculation enables advance procurement and logistics planning, ensuring that components are available when needed without compromising the flexibility to adapt to on-site conditions.
Solution Approach 2:
The computational method provides feedback on component requirements by analyzing the construction schedule and identifying peak demand periods. This information feeds into procurement and logistics planning, creating a closed-loop system that ensures component availability while maintaining construction flexibility.
Data Source
AI summary
A method for providing and assembling scaffolding units, each of which will be assembled from individual scaffolding components (of a scaffolding system) for constructing an industrial plant, in particular a petroleum refinery, comprising the following steps: Providing a 3D construction plan of the industrial plant;Constructing schedule for the industrial plant in order of occurrence,Selecting and drawing of scaffolding units to be used in the individual sections or phases of construction of the industrial plant in the 3D construction plan; Specifying the erection time required to erect the scaffolding unit; Specifying the dismantling time required to dismantle unit; Dividing the construction schedule into time intervals; Calculating for every single time interval, while taking into consideration the erection and dismantling times of the scaffolding units, the respective number of scaffolding components of identical design which are used simultaneously; Determining the maximum number of scaffolding components of the design which are used simultaneously across all time intervals;Providing the maximum number of scaffolding components of design alone and including a defined number of a buffer of scaffolding components of design;assembly of the scaffolding units to be used in a respective phase of construction from the scaffolding components each required for this purpose on-site at a point in time chosen in dependency of the specified erection time each at the latest prior to a start of construction in the respective section of construction specified in the construction schedule.