Page 246 - Safety Memo

barricaded or the floor opening shall be covered when where work is being done, or about to be done, must be
not attended by steel erection personnel. covered with flooring laid close together. 1635(a)(1)
c. Floor openings shall be guarded by either temporary 2. Employees shall not work from or walk on structural
railings and toeboards or by covers. 1632(b)(1) members until they are securely braced and supported.
1716.2(d)
d. Covers shall:
3. Before manually raising framed walls that are 15 ft. or
1. Be capable of safely supporting the greater of 400 more in height, temporary restraints, such as cleats on the
pounds or twice the weight of the employees, foundation or floor system or straps on the wall bottom
equipment, and materials that may be imposed on plate must be installed to prevent inadvertent horizontal
any one square foot area of the cover at any time. sliding or uplift of the framed wall bottom plate. Anchor
1632(b)(3) bolts alone shall not be used for blocking or bracing when
2. Have not less than 12 inches of bearing raising framed walls 15 ft. or more in height. 1716.2(c)
on the surrounding structure. 1635(c)(3)
4. When installing windows, wall openings shall be guarded as
3. Be checked by a qualified person prior to each required by 1632; however, the guardrail may be removed
shift and following strong winds. 1635(c)(5) for actual window installation if necessary. 1716.2(h)
4. Never be removed by walking forward where the 5. Scaffolds used as an edge protection platform must be
walking surface cannot be seen. 1635(c)(6) fully planked, not more than 2 ft. below the top plate, and
located no more than 16 inches from the structure.
5. Bear a sign stating, “OPENING—DO NOT 1716.2(i)(3)
REMOVE”, in 2 in. high, black bold letters on a
yellow background. 1635(c)(4) 6. Employees exposed to fall hazards must be trained to
recognize and minimize the fall hazard. 1716.2(j)
11. Permanent Flooring-Skeleton Steel Construction in
Tiered Buildings 7. Employees performing framing activities who are exposed
to fall heights of 15 ft. or greater must be protected by
Unless the structural integrity is maintained by the design guardrails, personal fall protection systems, or other
1710(k): effective means. 1716.2(e)
a. There shall be not more than eight stories between D. Reinforcing steel and post-tensioning in concrete
the erection floor and the uppermost permanent construction:
floor.
1. Know and understand T8 CCR sections 1711,
b. There shall be not be more than four floors or 1712, 1713, and 1717.
48 ft., whichever is less, of unfinished bolting
or welding above the foundation or uppermost a. Site access and layout. 1711(c)
permanently secured floor.
b. Written notifications. 1711(d)
12. All columns must be anchored by a minimum of four
anchor bolts. 1710(f)(1)(A) c. Stability requirements for vertical and horizontal columns,
Exception: When columns are braced or guyed to walls, and other reinforcing assemblies. 1711(e)
provide the stability to support an eccentric load as d. Impalement protection and custody of protective covers.
specified in 1710(f)(1)(B).
1711(f) and 1712
Note: Persons engaged in steel erection should review
and be knowledgeable in all the requirements contained e. Requirements for hoisting and rigging reinforcement
in section 1710. assemblies. 1711(g)
C. Wood/light gauge steel, residential and light commercial f. Post-tensioning operations. 1711(h)
frame construction
g. Fall protection. 1711(i)
1. Joists, beams, or girders of floors below the floor or level

50 Cal/OSHA Pocket Guide for the Construction Industry June 2019 Cal/OSHA Pocket Guide for the Construction Industry | June 2019 51