Cal. Code Regs. Tit. 8, § 3015 - Machinery and Sheave Beams, Supports, and Foundations
(a) Beams and Supports Required.
(1)
Machines, machinery, and sheaves
shall be so supported and maintained in place as to effectually prevent any
part from becoming loose or displaced under the conditions imposed in
service.
(2)
Supporting beams, if used, shall be of steel, reinforced concrete, or,
for existing installations, sound timber.
(3) Beams are not required under machines,
sheaves, and machinery, or control equipment which are supported on floors,
provided such floors are designed and installed to support the load imposed
thereon.
(b) Loads on
Machinery and Sheave Beams, Floors or Foundations, and Their Supports.
(1) Overhead beams, floors, and their
supports shall be designed for the loads specified in Design Section
3111(a)(2).
(2) The foundations, beams, and floors for
machinery not located over the hoistway shall be designed to support the loads
specified in Design Section
3111(a)(3).
(c) Securing of Machinery and Equipment to
Beams, Foundations, or Floors.
(1) Machinery
or equipment shall be secured to and supported on or from the top of overhead
beams or floors.
EXCEPTIONS to subsection 3015(c)(1):
1. Secondary or deflecting sheaves of
traction elevators. If bolts in tension are used to support such sheaves, the
bolts shall be provided with lock nuts and shall be cotter-keyed.
2. Rotable overhead sheaves whose members in
tension comply with the requirements of Design Section
3101(b)(1)(C).
(2) Machines and sheaves located below or at
one side of a hoistway shall be anchored to beams, foundations, or floors with
bolts that meet the specifications of Design Section
3111(c)(1).
(A) Where bolts are used through sloping
flanges of structural shapes, the boltheads shall be of the tipped or
beveled-head type or shall be fitted with beveled steel washers, and nuts on
sloping flanges shall seat on beveled steel washers.
(3) The fastenings including vibration
isolation units and supporting structures used to attach controllers,
motor generators sets, compensating rope sheave assemblies, machines,
machine beams, and sheaves to the building shall conform to Section
3111(c)(3).
(d) Overhead Hoisting Rope Hitches. Where
hoisting ropes are secured to the structure above a hoistway, the hitch plates
and hitch plate blocking beams, where used, shall be secured to and mounted on
top of overhead beams, machine beams, or on top of auxiliary beams connected to
the webs of overhead beams. Hitch plates, blocking, or auxiliary beams shall be
secured with bolting, riveting, or welding and shall be so located that the
tensions in the hoisting ropes will not develop direct tensions in the bolts or
rivets. The hitch-plate supporting beams and fastenings shall be designed to
support the loads as specified in Design Section
3111(c)(2) and
3111(d).
(e) Cast Metals in Tension or Bending. Cast
metals which are subject to tension or bending shall not be used to support
machinery or equipment from the underside of overhead beams or floors except as
allowed in Design Section
3111(e).
(f) Allowable Stresses or Deflections for
Machinery and Sheave Beams or Floors and Their Supports. The unit stresses or
deflections for all machinery and sheave beams and floors and their supports,
based on the loads computed as specified in Design Section
3111(a), shall not
exceed those permitted by Design Sections
3111(a) and
3111(b).
(Title 24, Part 7, Section 7-3015.)
Notes
2. Section 3015(c) which was filed 9-5-75 (Register 75, No. 36), was approved by the Building Standards Commission 3-26-76. History note printed in Register 78, No. 30 for technical reasons.
3. Amendment of Exception in subsection (c)(3) filed 12-22-78; effective thirtieth day thereafter (Register 79, No. 1).
4. Amendment filed 6-23-87; operative 6-23-87 (Register 87, No. 27).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
2. Section 3015(c) which was filed 9-5-75 (Register 75, No. 36), was approved by the Building Standards Commission 3-26-76. History note printed in Register 78, No. 30 for technical reasons.
3. Amendment of Exception in subsection (c)(3) filed 12-22-78; effective thirtieth day thereafter (Register 79, No. 1).
4. Amendment filed 6-23-87; operative 6-23-87 (Register 87, No. 27).
Group II regulations apply to existing elevators installed prior to October 25, 1998. Italicized paragraphs, sentences, or phrases apply to all existing elevators while non-italicized apply to elevators installed after 1970 or after the date the regulation was adopted.
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