DSGN3100: Architecture Studio
Poetics of Material Assembly
DSGN3100: Architecture Studio
Poetics of Material Assembly
2.23 Accessibility
Design for the following situations:
a. An accessible restroom accommodating the following programs and existing interior conditions (giving in the cad drawing.) Draw a plan, a reflected ceiling plan, and all interior elevations. Print on 1/4” =1’-0” scale fit on 11”x17” landscape format.
Men's restroom with one toilet stall, one urinal, and two lavatories.
Women's restroom with two toilet stalls and two lavatories.
Provide for control of sight lines into the restrooms.
Painted metal toilet partitions.
(2’x2’) suspended ceiling tiles.
(2) 2’x4’ lighting fixtures per room.
(1) 2’x2’ exhaust diffuser per room.
Light switches as required
GFI Power as required
Mirrors / Accessories (paper dispenser, grab bar etc.) as required
Wall finish (4”x4”) tiles
Floor finish (1”x1”) tiles
Floor drain and trap - (1) per room
Painted steel doors with (4”x24”) diffuser.
Ceiling ht. to be 9’-0” A.F.F.
Floor to floor ht to be 11'-0".
Draw a plan, a reflected ceiling plan, and all interior elevations. Print on 1/4” =1’-0” scale fit on 11”x17” landscape format.
b. An accessible ramp and a stair accommodating the following programs and existing interior conditions (giving in the cad drawing) + designed custom handrail/guardrail. Draw a plan @ 1/4"=1'-0". Handrail/guardrail detail elevation / section @ 1-1/2" = 1'-0". Print to fit on 11”x17” landscape format.
Complete the floor plan by developing a ramp and stair system in accordance with the given program information. Indicate all ramps, stairs, railings, walls, doors, and landings required to complete the plan and indicate all landing elevations and compliance to wheelchair turning radius. The completed plan should reflect conformity to program and code requirements and to principles of design logic.
Program
1.Two small office buildings on a sloped site are to be connected by a new lobby placed at the floor elevation of the lower building.
2.Provide an accessible circulation system with a ramp and a separate stair to connect the lobby and upper level corridor.
3.Place a wall(s) and door(s) on the existing upper level to separate the lobby and the upper level exit corridor.
In addition, the ramp and stair must conform to the following restrictions:
a.No portion of the ramp or stair may encroach on the existing upper level.
b.Indicate the elevation of all new landings.
Code
Comply with the following code requirements.
Definition
1. Accessible Means of Egress: A continuous and unobstructed path of travel from an accessible space to a public way that is usable by a mobility impaired person. An accessible means of egress comprises the vertical and horizontal means of travel and shall include accessible exit routes, ramps, stairways, and doors.
Maneuvering Clearances
1.The minimum width of an exit route shall not be less than 44 inches. Projections into a required exit route width are prohibited, except for handrail projections.
2.The space required for a wheelchair to make a 180-degree turn is a clear space of 60 inches in diameter.
3.Minimum maneuvering clearances at doors shall be observed. The floor or ground area within the required clearances shall be level.
Ramps
1. Floors or walks in an accessible means of egress path of travel having a slope steeper than 1:20 (one unit vertical in 20 units horizontal) shall be designed as ramps.
2. Width: The minimum width shall not be less than 44 inches. Ramps shall not reduce in width in the direction of egress travel. Projections into a required ramp width are prohibited, except for handrail projections.
3. Slope: The maximum slope of a ramp shall be 1:12 (one unit vertical in 12 units horizontal).
4. Landings: Ramps shall have level landings or floor surfaces at the top and bottom of each ramp run, all points of turning, entrance, exit, and at doors. The least dimension shall not be less than the required width of the ramp. The least dimension in the direction of travel shall be 60 inches. If ramps change direction at landings, the least dimension shall be 60 inches.
Stairways
1. Width: The minimum width shall not be less than 44 inches. Stairways shall not reduce in width in the direction of egress travel. Projections into a required stairway width are prohibited, except for handrail projections.
2. Landings: Stairs shall have a level landing or floor at the top and bottom of each stair run.
The width of a landing shall not be less than the width of the stair. The least dimension in the direction of travel shall be 44 inches. If the path of travel changes direction between stair runs, the least dimension shall be the width of the stairs.
3. Treads and Risers: Minimum tread depth shall be 11 inches. Maximum riser height shall be 7 inches and minimum riser height shall be 4 inches. There shall be no variation in any riser height or tread depth within the complete stairway system.
Doors
1.Width: Door openings shall have a minimum clear width of not less than 32 inches, measured between the face of the door and the opposite stop with the door open 90 degrees.
2.Exit Doors: Exit doors shall swing in the direction of egress travel.
3.Double-leaf Doorways: If doorways have two independently operated door leaves, then at least one leaf shall meet the requirements for clear width and maneuvering space.
Guardrails
1. Open sides of landings, floor surfaces, ramps, and stair- ways shall be protected by a continuous guardrail.
Handrails
1.Handrails shall be provided on both sides of ramps and stairs. Exception: Handrails are not required on ramps where the vertical rise between landings is 6 inches or less.
2. Handrails shall be continuous within the full length of each ramp run or stair flight.
3. Inside handrails on switchback or dogleg ramps or stairs shall be continuous between runs or flights.
4. Non-continuous handrails for ramps and stairs shall have extensions as follows: Ramp handrails shall extend horizontally at least 12 inches beyond the top and bottom of the ramp run. Stair handrails shall extend horizontally at least 12 inches beyond the top and bottom risers.
5. Handrails may not project more than 4 inches into the required ramp, stair, or exit route width.
6. Stairways more than 88 inches wide shall have intermediate handrails.
Download Cad Template File: Existing Condition.dwg
Download References: ADA Accessibility requirements.pdf
Toilet and Bath Accessories.pdf
The project is DUE Monday, 11.17.14 @ 2:30PM. We will have a pin-up in RM404
Saturday, November 15, 2014