Civil Engineering Reference
In-Depth Information
brainstorming sessions to study the building and collect all the player's inputs,
requirements and concerns on cross-related issues and use that to make the initial
design based on an overall agreement among all the involved parties. Such efforts
promise a correct initial design direction along with eliminating possible multiple
designs of the same system due to discovering its confl ict with other team member's
design approaches later and along the way. Such actions should not be limited just
to the initial sessions, but they should continue throughout the rest of the design
process regularly. Such collaborative efforts will help the team to fi nd and solve the
probable confl icts throughout the design and construction process much faster and
with much less fi nancial and environmental burdens.
An example of an integrated design emerging out of the integrated design brain-
storming sessions can be integration of building skin design by the architect, day-
light illumination by the electrical engineer's and HVAC system by the mechanical
engineer. In this approach the architect optimizes the design of the building envelope
system in such way that maximizes the use of day-lighting in the building, by speci-
fying high-quality glazing system. This technique helps the electrical engineer to
reduce the use of artifi cial lighting during the hours of the day that it is possible to
replace design lighting with natural light in the building. At the same time the HVAC
engineer gets the benefi t of lower artifi cial lighting load and higher quality glazing
system in the form of smaller HVAC equipment size requirement. As the result of
smaller HVAC equipment the architect gets the benefi t of additional usable spaces
and higher ceilings heights in the building that obviously adds to the beauty of the
architectural design. Electrical engineer also gets the benefi t of smaller generators
due to smaller size HVAC systems and of course lighting system that would
collectively helps the team to bring the project cost and its environmental negative
effects lower. Such benefi ts cannot be realized without engagement of all the team
players in early interactions and their collective efforts.
In summary the integrated project design and construction should be looked at as
a method of working on and completing a project by maximizing the project
outcome for the owner and minimizing undesired effects on the environment. Most
important element of this process should be managing the waste (specifi cally energy
waste) and increasing the design and construction effi ciency. This cannot be
achieved other than by utilizing the maximum skills, knowledge, and resources of
the involved players. An important step in performing a well-executed integrated
project delivery is proper cost, schedule, quality, performance, sustainability goal
settings, and developing procedures to measure and verify the success of each out-
come. For a detail discussion on the principles, procedures and benefi ts of an inte-
grated project delivery refer to “Integrated Project Delivery: A Guide; version 1;
2007; AIA National/AIA California Council; The American Institute of Architects.”
A typical integrated design process and the proposed required steps along with a
sample design charrette matrix has been presented in Appendix “H” of ASHRAE
standard 189.1, 2011 (ASHRAE
2011
). In this specifi c charrette each factor which
is believed to be dedicating to the high performance of the building is graded
between 1 and 10 in order to create an overall advantage of one system over the
