California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 6 - Elevator Safety Orders › Group II - Elevator Installations for Which the Installation Contract Was Signed Before October 25, 1998 › Article 8 - Machinery and Equipment for Power Cable-Driven Passenger and Freight Elevators › Section 3033 - Car Frames and Platforms

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Car Frames Required. Every elevator
						suspended by wire ropes shall have a car frame consisting of a cross head,
						uprights (stiles), and a plank located approximately at the middle of the car
						platform, and in no case farther from the middle than 1/8 of the distance from
						front to back of the platform.
(b)
						Guiding Members. Car frames shall be guided on each guide rail by upper and
						lower guiding members attached to the frame.
(c) Design of Car Frames and Guiding Members.
						The frame and its guiding members shall be designed to withstand the forces
						resulting under the loading conditions for which the elevator is designed. See
						Section 3037.
(d) Underslung or Sub-Post Car Frames. The
						vertical distance between the top and bottom guide shoes of an elevator car
						having a subpost car frame, or having an underslung car frame located entirely
						below the car platform, shall be not less than 40 percent of the distance
						between guide rails.
(e) Car
						Platforms. Every elevator car shall have a platform consisting of a
						nonperforated floor attached to a platform frame supported by the car frame,
						and extending over the entire area within the car enclosure. The platform frame
						members and the floor shall be designed to withstand the forces developed under
						the loading conditions for which the elevator is designed and installed.
EXCEPTION TO SUBSECTION
						  3033(e):
Platform frames are not required where laminated
						  platforms are provided. Laminated platforms may be used for passenger elevators
						  having a rated load of 5,000 lbs. (2270 kg) or less. The deflection at any
						  point of a laminated platform, when uniformly loaded to rated capacity, shall
						  not exceed 1/960 of the span. The stresses in the steel facing shall not exceed
						  20% of its ultimate strength. The stresses in the plywood core shall not exceed
						  60% of the allowable stresses specified in Table 3. Allowable stresses for
						  Plywood, in the American Plywood Association, Plywood Design Specification
						  (PDS), Form No. Y510, August 1986/Revised December, 1990, which is hereby
						  incorporated by reference.
(f) Materials for Car Frames and Platform
						Frames.
(1) Materials used in the
						construction of car frames and platforms shall conform to the following:
(A) Car frames and outside members of
						platform frames shall be made of steel or other metals.
(B) Platform stringers of freight elevators
						designed for Class B or C loading shall be of steel or other metals.
(C) Platform stringers of passenger elevators
						and of freight elevators designed for Class A loading shall be made of steel or
						other metals, or of wood.
(D) Cast
						iron shall not be used for any part subject to tension, torsion, or bending.
EXCEPTIONS:
1.
						Guiding supports.
2. Guide
						shoes.
3. Compensating rope
						anchorages.