Chapter 5 of BIM Handbook starts off with explaining the typical
process of completing a project, where things start with the design process
followed by an open Bid performed by a general contractor to obtain the lowest
possible cost that may provide to complete a job.
Commonly building projects are traditionally run based on initially
defining the architectural system, which involves the following listed below as
stated in the chapters as the “traditional design process”:
Later the chapter explains how the traditional process may lack
time efficiency leading to more cost which is not in the owner’s interest, such
as design changes which can lead other parties involved in the project to make
more profit on the project due to orders of change.
The following listed below are the “range of often used technical services”,
which are traditionally involved in a project, while most of the listing are supported
through BIM:
The advantage of having such technical features within one place
allows the use of Integrated Project Delivery “IPD”, which is a designing
method used to have all parties required on a project to work together, such as
the architect, mechanical engineer, structural engineer, electrical engineer,
owner, etc. Gathering all parties involved in a project to work together in the
designing process allows lack of miss communication, time efficiency, and a
project with higher efficiency for all systems compared to a traditional preformed
project.
The following listed below are “Building system layout applications”
that can be used to perform analysis and design o several building systems:
From the list above it can be seen that most application may not
support some systems, but may be supported by one another through different
application, and that is achieved through importing and exporting for purposes
of design, simulations and analysis.
The chapter also discusses how many companies have become heavily dependent
on BIM except for structural systems, which is progressing at a slower rate of
use compared to other building systems. In addition to the requirements of
migrating a company’s work activity to use BIM tools requires system configuration
that may require not only server update but hardware updates, and training to
achieve proficiency of use.
Other updates that come with using BIM tools is change of staff
demands that may lead to requiring less amount of people on a project or less number
of hours. The table below shows average project hour’s demand change before and
after the use of BIM tools.
I believe that Chapter 5 is very rich with information, while the scope
of the chapter is way beyond the scope of the discussion. Therefore, I recommend having
the chapter read.
Eastman, Charles M. BIM Handbook : A Guide to Building Information Modeling for
Owners, Managers, Designers, Engineers and Contractors. vol. 2nd ed,
Wiley, 2011. EBSCOhost,
ezproxy2.library.drexel.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=364239&site=ehost-live.
Comments:
After reading post and seeing that there are BIM tools of owners
you have made me interested to read section 4.2, since I never thought there
are such tools for owners and I thought owners just mainly depend on a manger
they have hired or something. It’s interesting how this software not only show project
related design and engineering related data, but also market related features.
Thomas Sisson -
Blog Post 2 - Interoperability
Interoperability has been well explained, and I have to agree with
sherry the interactions of all parties of a project has been a theme and emphasize
throughout the chapters, which emphasis how greatly interoperability will emphasize
the future of Integrated Design Projects. However, I have to disagree with you
about having these programs take thousands of engineering jobs, because these
programs can have errors and specialized engineers will be required to identify
those errors based on the results of simulations of a model, and of course for
many other reasons they won’t take engineer jobs.
Unfortunately, parties involved in a project as you mentioned such
as general contracts abuse the idea of change of orders just to make more
profit out of a project, and unfortunately many companies are still not
proficient and lack understanding the Capability’s of BIM tools, which leading
me to believe an IPD would be the best case scenario to adopt as a traditional
process for projects.
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