The main challenges during the construction phase include:
1. Inconsistency between construction organization design, construction plan, and on-site conditions
This discrepancy makes on-site management coordination difficult. On one hand, there is often a lack of thorough understanding of the surrounding environment and construction organization, leading to inadequate planning of the site layout, materials, and construction schedules. This results in delays and setbacks. On the other hand, current technologies mostly rely on two-dimensional tools for site layout, schedule planning, quantity estimation, and managing personnel, materials, and machinery. This approach complicates the integration of processes and overall coordination.
2. Insufficient design detail increases unpredictability on-site
Incomplete designs—such as construction pipeline layouts, structural reserved hole drawings, decoration details, and prefabricated component positioning—cause numerous on-site issues. These “blind spots” include inaccuracies in reserved hole locations, pipeline clashes, discrepancies between estimated and actual quantities, and project delays due to late resolution of technical problems. Fundamentally, the lack of precision in drawings makes it harder to control project quality, costs, and timelines.
3. Lack of refined management during construction
With the rise of green and prefabricated buildings, demands for standardized and normalized project management are higher than ever. Owners expect top-quality results and strict adherence to schedules. Traditional cost control and broad management approaches no longer effectively resolve conflicts between quality, progress, and budget. This challenge is increasingly pressing for contractors and construction teams.
How BIM Technology Addresses These Issues During Construction
BIM technology enhances the construction phase through visualization, detailed refinement, dynamic management, and precise design deepening. It supports comprehensive 3D, 4D, and 5D simulations, tackling the above challenges in detail:
1. Improved construction organization and scheduling
BIM enables the creation of a 3D model based on 2D drawings and imports the construction schedule into this model. This allows dynamic 4D simulation of construction organization and scheduling on-site. Material quantities can be calculated by phase and specialty, supporting procurement and funding plans for effective 5D control of investment and progress. Before construction begins, the BIM model serves as a “rehearsal” platform to simulate and analyze various plans, identifying and resolving potential issues early. This avoids delays, wasted investment, and risks related to quality and safety caused by conflicting operations during construction. Managers gain better oversight and control of overall project progress and objectives.
2. Enhanced design detail and accuracy
BIM models provide detailed construction information far beyond typical drawings. They include processing and positioning details for local components, comprehensive pipeline layouts, and precise reserved hole locations. This micro-level detail greatly reduces on-site construction ambiguities and errors, enabling more refined and accurate execution.
3. Optimized management for green and prefabricated buildings
BIM supports analysis and optimization tailored to the needs of green and prefabricated construction. For instance, 4D construction simulation visually integrates the project schedule with the model, facilitating more intuitive progress tracking. Quantity statistics broken down by project phases and specialties help organize timely material procurement and refine cost management, minimizing waste. Key construction challenges can be simulated in advance within the BIM model, improving quality control and safety oversight.
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