Landscape Architectural Construction Design and Detailing using Computer Applications
Assignment Five: The Details and Specifications for
Accessing the Raised Platform (Steps and a Ramp) and
a Pergola
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Assigned: October 16th at 9:00 am |
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Due: October 25th at 10:00 am at beginning of class (Discussion to follow) |
Introduction: The purpose of this assignment is for you to continue
with and/or "revise" the previous site layout, grading, and materials
development. Your assignment is to prepare a construction package that a
contractor would use to construct a raised platform and pergola for outdoor
discussion and relaxation. The pergola should be designed to provide shade
on the raised platform in the hottest months of the year. It is not
intended to provide protection for rain and snow - shade only. The drawing
package should be a complete documentation
on how you feel these elements should be designed and detailed with the
previously designed plaza and site elements (this will be an excellent time to revise
your previous solutions to accommodate ADA compliant steps and ramps throughout
the plaza area. This will also be a
good point to determine locations for any future benches, raised planters,
and lighting assignments. As with assignments one through four
this design will be used as part of the final NDSU Downtown landscape
construction package. Your steps and ramp(s) as they are designed must provide barrier-free access
to the new seating areas and the platform as well as future adjacent paths or sidewalks.
Description: Your client has requested a platform and pergola
system along with steps/ramp that will not be destroyed by heavy usage, hush
climatic conditions, or vandalism. The solution must be pleasing and
functional to the entire plaza area. The NDSU is very concerned
that positive handicapped access be provided within the plaza area and the
overall landscape - especially those meeting ADA standards. The designed
areas and details from assignment one through four (and as revised) will be used as the base for the
platform, steps, ramp, and pergola system.
The steps and ramp should resolve the level change between the plaza level and
the platform level. The
drawings and specifications prepared in assignments 2 through 4 should also
be combined into one package with this assignment and handed-in with your new graphics
and specifications.
Material Pallet:
The platform, steps, ramp(s), and pergola system must have appropriate railings and tread/riser
ratios along with ADA acceptable slopes, width, and turning
radii on the actual ramping system. All exterior graded wood products (substructures do not need to be
the same material as the finished surfaces – decking, rails, fascia, trellis
members, etc.;
Concrete ready mix to 3000 psi; a concrete finishing material (color choice
by designers); #4 reinforcing rods; schedule 40 steel (if used); primer
and charcoal gray paint (if needed); granite/slate/concrete interlocking
pavers/etc.; a sealer for the pavers and exposed redwood/wood surfaces; a Class
5 gravel (subbase); 1-1/2" minus gravel (as mulch under the platform),
sand a paver cushion, filter fabric under the seatwall and pavers; galvanized/stainless
steel nails or screws; and galvanized/stainless steel fasteners and hangers.
Additional materials may be added as needed to complete your overall design.
Dimensions:
Suggested Reading: Universal Access to Outdoor Recreation "A
Design Guide", Place, Inc. with USDA Forest Service
Presentation: This assignments requires a series of details needed to construct level
changes within the site area. I would suggest a detailed section of
your steps as well as a section of the ramping required as part of your
design solution. I would also encourage an enlarged plan to reference
details. Try 12" x 18" (not 11" x 17" half-scale plotted or printer for drawings
with 8-1/2" x 11"
for specifications - our North Quonset 11x17 printers will accept B sized sheets. An indication of the half-scale sheets must be shown
on each drawing sheet including the following note: "For
review only -- not for Construction"
Evaluation: 15 Points Total
Steps: Minimum width must meet ADA Standards. Handicapped Accessible Ramps: Minimum width must meet ADA Standards including
turns and change in direction. Steps: Step riser must not exceed maximum allowed in ADA Standards. The maximum stair tread
is open, but it must be comfortable to moving up the steps and within code
compliance. Ramps: Acceptable ADA ratios the for ramping system.
Pergola: Height and density of shade as determined by designer
The specifications must be word-processed with a cover
sheet including within a title block area: A PROJECT TITLE,
your name, assignment five, LA 441: Site Development and Detailing, and Fall
2002.
The specifications must reflect the work to be performed by individual
specification section for each work area.
10 pts for drawing detailing
3 pts for specifications 2 pts graphics and clarity