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Tuesday, November 8, 2011

BIM based shop drawing shows how the building structure will perform at the early stage of design

Now-a-days shop drawings are considered to be the part and parcel of every construction project. The contractor, supplier, manufacturer, real estate developer, subcontractor, or fabricator create shop drawing to be utilized for pre-fabricated components like elevators, structural steel, trusses, pre-cast, windows, appliances, cabinets, air handling units, millwork etc . Shop drawings generate enormously vital information about measures and specifications of pre-fabricated components. MEP engineers also require the installation and coordination shop drawings that range from sheet metal ductwork, piping, plumbing, fire protection, and electrical.

The shop drawing refers to the drawn version of information provided by the Manufacturer or Contractor. These informations are exposed in the construction documents. The shop drawing is required to provide details of the fabrication and/or installation of the items to the manufacturer’s production crew or contractor's installation crews.

The shop drawing is the only place in the project document where all the connection details are shown with specifications to resolve connection issues. As for instance, a properly designed BIM wall system facilitates a much larger percentage of material to be pre-cut to accurate dimensions off-site, which lead to considerable savings in material and labor.



Now with BIM or Building Information System, the contractor can produce 3D shop drawings in which a 3D model can be directly applied for assembly and installation to forecast how the building structure will perform at the early stage of design. A 3D shop drawing contains huge database of information which can be applied for selecting the best construction technique to achieve the best possible output. To get rid of future design inconsistencies and radical changes as the general contractor arranges the BIM model while integrating shop drawings from the different trades, the architects and engineers evaluate shop drawings to ensure that the contractors, manufactures and suppliers have understood the design objective in the same sense.
The different kinds of shop drawings :-

• SHOP / COORDINATION DRAWINGS
• Coordinated HVAC Shop Drawings
• Sheet Metal Fabrication Shop Drawings
• Piping Shop and Fabrication Drawings
• Coordinated mechanical Room Shop drawing
• Coordinated plumbing shop drawing
• Electrical Shop Drawings
• MEP Coordination Drawings
• Fabrication spool drawing
• Sleeve & Rough opening drawing
• 2D mechanical coordination drawing
• MEP(3D)/BIM (4D) Mech coordination drawings

Process :-
Submit →Coordinate→Approve→Fabricate→Install

Posted by Rajib Dey
Business Development
rajib@jobs2india.com
Global Associates (Pioneer Company in 3D modeling with BIM & Sketchup)

visit our BIM sites
www.bimoutsourcing.com
www.bimcoordination.com

Monday, November 7, 2011

BIM can enhance project visibility by providing 4D scheduling

The accurate construction schedule can efficiently communicate the project plan among team members for the successful completion of the project.

Now-a-days BIM is an inheritant part of construction scheduling. BIM can be integrated with construction scheduling to facilitate 4D scheduling. Thus BIM assists to communicate the project plan visually in respect of the timeline to the project team prior to the commencement of actual construction.

A large project involves many stakeholders. So it is very important to schedule the whole project in order to bring out the amount of material, number of labors and possible expenditure. BIM Outsourcing helps them in the project management by providing the BIM model with lots of usable information. A proper sequence helps them to track and analyze any problem and detect conflict and mitigation.

BIM can be utilized to provide 4D (scheduling integration) and 5D (cost/productivity and resource loaded estimating) capabilities for the completion of project cycle and generating synergy among existing systems.



By connecting the CPM construction schedule to the BIM, the 4th dimension of time is added to the model. This leads to a virtual construction simulation facilitating a graphically wealthy and animated representation of the planned construction sequence set against time. The project controls capabilities are also developed. The project managers get the ability to focus their resources by highlighting the critical path activities inside the model.

4D schedules are a influential tool for design and engineering documentation and analysis, phasing, more accurate cost estimating, optimized means and sequence of work, invoice reconciliation with work complete on-site, on-site production control with the Superintendent and the Subs, design intent and construction plan, an information rich as-built model for facilities management, well organized trade coordination and communicating planned work to the different kind of audiences as well as project stakeholders and those directly liable for project execution.

With the help of 5D construction scheduling, precise bills of quantity are generated, which can be utilized for amalgamating cost and schedule. This leads to incorporate estimators, cost managers, and planners into the scheduling process.


Advantages of BIM for construction scheduling :-

  • Lessen and or eliminate costly delays which can affect your construction schedule.
  • Facilitates communication with your subcontractors more competently and successfully
  • Organize procurement orders to make the delivery of key materials in time
  • Assists for executing the construction activities in time
  • Enhance the responsibility between the project owner, general and subcontractors
  • Enhance project visibility, increased profits, reduced costs, faster cash flow and earned value reporting

Posted by Rajib Dey
Business Development
rajib@jobs2india.com
Global Associates (Pioneer Company in 3D modeling with BIM & Sketchup)

visit our BIM sites
www.bimoutsourcing.com
www.bimcoordination.com



Saturday, November 5, 2011

BIM and benefits of owner

The owner should embrace BIM to reap the benefit of a well-organized and extremely coordinated method of project delivery. Project schedules are also curtailed and overall project costs is decreased.

A BIM model contains huge database of vital information and the owner can utilize these information for analysis and decision making. The database is repetitively updated and filtered during the life cycle of the model. Besides modification can be made at a single location in spite of how many times the data is presented or distributed. The recurrence of requesting, parsing, assembling and transmitting information among team members at the different arenas of a model’s life is significantly decreased or removed. This leads to improved communication between team members and more apt reply to owner concerns or suggestions.

BIM generates coordinated construction documents which can enhance the efficiency of the design and construction procedure. The owner can gain huge cost saving as the project scheduled is accelerated to a great extent.

The owner can apply BIM at pre-design phase and expand it during the design, bidding, construction, occupancy and finally decommissioning of the building.

BIM plays a key role in allocating data for analysis and simulation. BIM makes it possible to develop the amount and types of project analysis. This may vary from early investigation of building energy efficiency throughout conceptual massing, to structural/mechanical/electrical load analysis all through design, quantity take-offs throughout the project bidding, shop drawing review/fabrication all through construction, or even facility asset management throughout occupancy. The owner obtains more value by allocating different analyses to be executed with the transmission of data. This is applicable where numerous iterations of an analysis are replicated and purified at different phases of the BIM lifecycle.

Some exclusive benefits of owner:
• Owner gets the advantage of informed decision-making with the high-tech analysis of building systems, alternative materials, equipment, and technologies
• The owners get an idea about the estimation of the materials and the sequence of work.
• BIM delivers the best 'what if' situation and facilitates the owner to pick up the best one.
• Solve the constructability issues.
• Trim down contractor doubt facilitating a more precise cost representation and more reliable bids.
• Assist project team to build up a realistic and unified phasing plan.
• Minimize general project delivery time throughout the design stage in addition to the construction phase.
• Enhance overall accuracy of project documentation.
• Facilitate the analysis of sustainable design alternatives and cost comparisons.
• Generate perfect and well-timed information instantly available to team members at several locations, with the construction site.
• Makes the way to get better asset management.
• Presents a mechanism for improved building and equipment maintenance.

Posted by Rajib Dey
Business Development
rajib@jobs2india.com
Global Associates (Pioneer Company in 3D modeling with BIM & Sketchup)

visit our BIM sites
www.bimoutsourcing.com
www.bimcoordination.com