GSA Courthouse Management Group
Mechanical Lift Analysis
(M)
Controls shall be placed at a 48 in. maximum and 15 in. minimum
distance above each landing floor and platform level. (Most Stringent)
(N)
The vertical runway for the lift platform shall be guarded by a solid
enclosure extending from the lower landing to a height of at least 42 in.
above the upper landing, including the height of the gates.
(Most Stringent)
SUMMARY OF THE MOST STRINGENT REQUIREMENTS:
(Impacting the design of the lift platform, enclosure, and controls)
The minimum clear platform area shall be 36 in. x 60 in. and the net
area shall not exceed 18 sq ft;
Lift equipment pits are not required;
Changes in level of more than in. (in height) between the lift at its
lowest position and the adjacent floor shall be accomplished by means of
a ramp;
Controls for the occupant shall be mounted in the range of 15 in. to 48
in. above the platform surface;
End gates shall be a minimum of 32 in. in clear width;
Side gates shall be a minimum of 42in. in clear width;
Gates shall be at least 42 in. high;
Openings between the platform and enclosure, at a landing, shall be of a
size that does not permit passage of a in. sphere;
Gates shall be provided with a combination mechanical lock and electric
contact. The locking device shall only allow the gate to open if the
platform is within 2 in. of the landing;
Running clearance between the platform and landing shall not be less
than 3/8 in. or more than in.;
Grab rail running the full-length on one side of the platform shall be
provided at a 34 in. height;
Load limits on the platform shall be between 450 and 750 lb;
Section 2-5
HDR Architecture, Inc.
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