Clash Detection-Clash Reports & Clash Matrix

BIM Based Coordination (Clash Detection & resolution process)

3DPrime BIM team builds the models for you directly from the drawings – our modelling services are quick, efficient, and thorough and include a rigorous quality assurance process. We assist our client’s project team by becoming their extended team to use existing models in construction coordination effort and in actual construction.

This is the coordination process led by our BIM Project Manager from our end. Our customer will have one point of contact who takes the lead in sorting and prioritizing the clashes based on the agreed upon System Priority Structure. This document includes a weighted grading system for clashes clearly indicating which clash takes precedence based on materials and labor costs. We work with the design team, subs, and engineers to iron out the clashes which are comprehensively documented in our coordination reports.BIM generates coordinated models allowing clients to check for possible interferences among of all the building systems. Models help construction companies to visualize the schematic structures before the construction starts, which in turn lead to better project planning. This eliminates redundancy during the construction phase, saving time and money.

3d model
CDR: Clash Detection Reports

3DPrime will be submitting detailed CDR for each recognized clash as a part of process and same will be produced as an official document as well. This is originated and practical way of running the clash detection and resolution process and having records for rest of the team who may not use BIM tools. 3DPrime will be providing “Free of Cost” BIM Coordination and Communication tool that can be used effectively by LWIN team to communicate with Site Team – Project Team – Project Consultants and BIM team.

Clash Matrix
Clash detection: Important BIM process
  • Clash detection is an important and integral part of the BIM modeling process. Clash detection arises out of the fact that, in BIM modeling, there is not just one model, but several, that are, in the end integrated into a composite master model. Each discipline: structural engineering, MEP engineering, environmental engineering, etc., creates a model, independently of all the others, based upon the architectural or some cases structural as original model, which is the starting point for all the other disciplines.
  • After each of the disciplines has finished their work, the next step in BIM modeling is clash detection, which is the process of finding where the models “clash”: elements of separate models occupying the same space, or with parameters that are incompatible, or in 4D BIM modeling, a time sequence that is out of order. Finding these inconsistencies is vital, as they would severely impact the construction process, causing delays, design changes, materials costs and a cascade of headaches and budget overruns.
  • Clash detection is not new; it’s just that, in the past, clash detection took place on the construction site, when the beam that the structural engineer designed is right in the path of the air conditioning units the MEP engineer located. Huge expenses and costly delays were necessary to fix this “clash detection”. In BIM modeling, clash detection takes place during the design phase, so that constructability issues can be resolved before construction begins, saving vast sums of money, time and producing a better building. Prior to computerization, clash detection was a manual process of overlaying drawings on a light table to visually see clashes. 2D CAD operated essentially the
mep coordinate
Hard Clash:
  • Hard clash is exactly what it seems; two objects occupying the same space: a beam where a plumbing run is designed, a column running right through a wall. Simple stuff. But BIM modeling hard clash detection brings not only geometry based detection, but semantic and rule-based detection algorithms, due to the embedded information in the BIM modeling objects. Geometry based clash detection will return a clash for every recessed ceiling light, or a pipe running through a wall. But clash detection rules based on embedded object data can eliminate these common mistakes.
  • The level of detail in BIM modeling is extremely important for the accuracy and efficacy of clash detection. So are selection sets, which allow a BIM modeling user to run a clash detection between specific subsets of a model, such as MEP against just ceilings, or structural against just walls.
Soft Clash
  • Soft Clash/Clearance refers to objects that demand certain spatial/geometric tolerances or buffers having objects within their buffer zone for access, insulation, maintenance or safety. Soft clashes are one of the real avenues where BIM modeling clash detection has brought new capabilities to the process.
  • Custom “soft clash” detection can go as far as checking components for building code adherence, based, of course, on a robust object data population model. These models can be a great communication aide with Subs, showing exactly where they need to be and when.

The advent of true BIM modeling included the integration of clash detection, search capabilities in the software, which tremendously enhanced the process, both in terms of speed and accuracy. These methods actually have been borrowed from the gaming community, where “collision detection” has been a feature of virtual reality for a long time. Can’t have monsters running through each other! But the real-time character of games places their emphasis on speed, at the cost of accuracy. In BIM modeling, its accuracy that counts, though speed is important, but distinctly secondary.

3DPrime Provides following Unique Structural BIM Services

  • Structural 3D Modeling
    • Main and Secondary Frame modeling
    • Structural Finishes
  • Façade Modeling
  • 3D Precast Modeling
  • Precast Panel Modeling & Detailing
  • 3D Rebar Modeling for,
    • Accurate Rebar BOQ
    • BBS (Bar Bending Schedules)
  • Structural 2D Drafting & Detailing
  • BOQ-Structural Model Elements
  • Structural GFC Layout (GA Drawings )
  • Scan To BIM Services for Structural
  • Structural Steel Connection Modeling
  • Structural Steel Fabrication Drawings
    • Assembly Drawings
    • Single Part Drawings
    • Multi Part Drawings
    • Bolt & Weld Lists
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3DPrime Provides following Unique Structural BIM Services

  • Structural 3D Modeling
    • Main and Secondary Frame modeling
    • Structural Finishes
  • Façade Modeling
  • 3D Precast Modeling
  • Precast Panel Modeling & Detailing
  • 3D Rebar Modeling for,
    • Accurate Rebar BOQ
    • BBS (Bar Bending Schedules)
  • Structural 2D Drafting & Detailing
  • BOQ-Structural Model Elements
  • Structural GFC Layout (GA Drawings )
  • Scan To BIM Services for Structural
  • Structural Steel Connection Modeling
  • Structural Steel Fabrication Drawings
    • Assembly Drawings
    • Single Part Drawings
    • Multi Part Drawings
    • Bolt & Weld Lists
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3DPrime Provides following unique MEP-HVAC Services

  • 3D Mechanical Elements Modeling
  • 3D Plumbing Modeling
  • 3D Electrical Modeling
  • Clash Detection & Resolution Services
    • CDR Reports (Project team's review, Approvals and incorporation in model). Model based resolution (For discrepancies).
    • Project Coordination Support. Support for Optimized routing Support and incorporation into 3D Model.
  • Composite Services Drawings (CSD) From Clash Free Model
    • Customer specific scale with ISO Standard Drawing Size
  • Shop Drawings / Fabrication Drawings (Single Services Drawings = SSD)
    • HVAC Ducting & Equipment Layout
    • Piping & Equipment Layout with Section Details
    • Fire Fighting System Layout
    • Lighting & Conduit layout
    • Cable Tray layout with Section Details
    • Spool Drawings
    • Sleeve Drawings
    • Builders Work Drawing
  • Drainage, water supply, Ran water layout with sectional details
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3DPrime Provides following unique MEP-HVAC Services

  • 3DPrime 4D SERVICES: (Basic & Advance)

  • Complete initial (planned) schedule incorporation in model by linking up of the construction schedule provided by Clients/Main Contractor.
  • Mapping site progress into 3D model for various projections, including schedule for identifying delays and updating client on any such lapses and deviations regularly, mostly on fortnightly basis.
  • Planned Vs Actual 3D representation on project status update for schedule. Thereof incorporating revised schedule and rescheduling from any such situation
  • 3dprime 4D SERVICES: (Advance)

  • 4D Baseline Schedules
  • 4D Schedule Updates
  • 4D Logistics Planning
  • 4D Collaborative Foremen Meetings
  • 4D What-If Scenarios
  • 4D Planned vs. Actual
  • 4D for Marketing and Public Relations
  • 4D Visuals for Claims and Arbitration
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3dprime Provides following unique MEP-HVAC Service

  • Land Modeling & Detailing
  • Water Network
    • Water Lines,
    • Junctions, Valves,
    • Tanks, Pumps
  • Road Network
    • Roads, Footpath,
    • Medians, Signals
  • Cut and Fill Model from 3D Model
  • BOQ of Entire 3D Model Elements
  • Sewerage Treatment Plant, Sewerage Systems
  • Storm Water Drains
    • Storm lines, manholes
    • Chambers, junctions
  • Cooking gas lines, Power Systems
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3D Prime BIM Projects

Residential
Commercial
Mix-Use
Hospitals
Hotels
Shopping Mall
Infrastructure