1. 1926 Subpart R Part I History of SENRAC
Part II Highlights of proposed standard
Part III If time permits overview of Directive

2. OSHA’s
Steel
Erection
Negotiated
Rulemaking
Advisory
Committee

3. What is SENRAC?
The Steel Erection Negotiated Rulemaking Advisory Committee (SENRAC) consists of representatives of employers and employees that will be significantly affected by the proposed rule covering steel erection in construction.
The Committee began negotiations in June of 1994.

4. Purpose of SENRAC The committee's purpose is to; - resolve issues
- arrive at a consensus, and
- develop a proposed rule governing
steel erection.

5. Participation
Appointees to the Committee include representatives from labor, industry, public interests and government agencies.
Many interested parties have attended the public meetings and have participated in the workgroups established by SENRAC.

6. Members of the committee
Army Corps of Engineers
Ben Hur Construction Company
Regional Administrator
International Association of Bridge, Structural & Ornamental Iron Workers;
International Association of Bridge, Structural & Ornamental Iron workers;
El Paso Crane & Rigging, Inc.;
International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers & Helpers;
Network, Inc.;
Building and Construction Trades Department (AFL-CIO)
Black & Veatch;
United Steelworkers of America;
Gilbane Building Company;
Williams Enterprises of Georgia, Inc.;
Holton & Associates, Ltd.;
CAL/OSHA;
International Association of Bridge, Structural & Ornamental Iron Workers;
International Union of Operating Engineers;
National Institute for Occupational Safety and Health (NIOSH)
C. Rockwell Turner-L.P.R. Construction Co.;
National Erectors Association.

7. Highlights of OSHA’s New Proposed Steel Erection Standard
1926 Subpart R -
Steel Erection

8.
Scope and Application

9. 1926.750 Scope and Application (a) Scope
Hazards associated with steel erection activities:
Single & multi-story buildings
Bridges
Other structures where steel erection occurs

11. 1926.750 Scope and Application (b) Application Hoisting Connecting
Welding
Bolting
Rigging structural steel
Steel joists and metal buildings
Installing metal deck, siding systems
Miscellaneous metals
Ornamental iron
Similar metals
Moving point to point

12.
Definitions
Controlling Employer

13. site-specific erection plan and construction sequence
Site layout,
site-specific erection plan
and construction sequence

14. (a) Approval to begin steel erection (b) Site layout
Site layout, site-specific erection plan and construction sequence.
(a) Approval to begin steel erection
Controlling employer
Concrete curing
(b) Site layout
Access roads
Work area properly maintained
(c) Overhead protection
Preplanned hoisting operation
(d) Site-specific erection plan
Employer elects to develop alternate means of protection

15. Hoisting
and Rigging

16. 1926.753 Hoisting and rigging. (a) General (b) Working under loads.
Pre-shift visual inspection of cranes
(b) Working under loads.
Preplanned routes for suspended loads
Exceptions
EE’s making initial connection
Rigged to prevent material displacement
(c) Multiple lift rigging procedure.

17. Pre Shift Visual
Inspections

18. Pre planned routes for suspended loads
Working under the load
Pre planned routes for suspended loads

19. Exception to working under loads: riggers making initial attachments
securing load
Promotes crane safety by including elements of current ANSI B

20. Multiple lift
Two connectors were erecting lightweight steel "I" beams on the third floor of a 12-story building, 54 feet above the ground. One employee removed a choker sling from a beam and then attempted to place the sling onto a lower empty hook on a series of stringers. While the crawler tower crane was booming away from the steel, the wind moved the load line and stringer into the beam the employee was standing on. The beam moved while the employee was trying to disengage the hook, and fell to his death.

21. "Multiple lift rigging."

22. Rigging

23. Structural
steel assembly

24. 1926.754 Structural steel assembly.
(a) Structural stability shall be maintained at all times during the erection process
(1) The permanent floors shall be installed as the erection of structural members progresses, and there shall be not more than eight stories between the erection floor and the upper-most permanent floor, except where the structural integrity is maintained as a result of the design.
(2) At no time shall there be more than four floors or 48 feet (14.6 m), whichever is less, of unfinished bolting or welding above the foundation or uppermost permanently secured floor, except where the structural integrity is maintained as a result of the design.
(3) A fully planked or decked floor or nets shall be maintained within 2 stories or 30 feet (9.1 m), whichever is less, directly under any erection work being performed.

25. 1926.754 Structural steel assembly.
(c) Walking/working surfaces.
Tripping hazards
Skeletal structural steel
Coated steel

26. (d) Plumbing-up Connections used properly secured
Removed only with approval of competent person

28. 1926.754 Structural steel assembly(continued)
(e) Decking.
Hoisting, landing & placing of deck bundles
Strapping
Roof and floor openings.
Space around columns.
Floor decking.
Derrick floors.
Hoisting, landing & placing of deck bundles

29.
Anchor bolts

30. Anchor bolts.
(a) General requirements for erection stability.
(b) Repair, replacement or field modification.

31.
Beams and columns

32. 1926.756 Beams and columns. (a) General (b) Diagonal bracing
Load shall not be released until final members secured by at least two bolts per connection, drawn wrench tight per project structural engineer of record
(b) Diagonal bracing
Secured by at least one bolt per connection

33. 1926.756 Beams and columns. (continued)
(c) Double connections at columns and/or at beam webs over a column
Common connection holes

34. 1926.756 Beams and columns. (continued)
(e) Perimeter columns.
(f) Perimeter safety cables.

35.
Open web steel joists

36. Steel Erection Operation
An employee was assigned to connect the X-braces at the end of 40-foot long bar joists. Only one end of the bar joist he was working on had been welded. The employee was sitting on the unwelded end of the bar joist trying to connect the X-braces. He lost his balance, dislodging the bar joist from its end support, and fell approximately 24 feet to his death.

37. Steel Erection Operation
Five iron workers were distributing 90-foot-long open web bar joists on a building under construction. The bar joists were supported by vertical columns spaced 30 feet apart. The steel columns were not framed in at least two directions and the bar joists were not field bolted to the vertical columns to prevent collapse. The bar joists shifted, causing the vertical columns to lean. This caused entire section of columns and pen web bar joists to collapse. Two employees rode the iron down. One was fatally injured and one received serious injuries.

38. 1926.757 Open web steel joists (a) General.
(b) Attachment of steel joists and steel joist girders.
(c) Erection of steel joists.
(d) Erection bridging.

39. Open web steel joists

40. Open web steel joists

41.
Pre-engineered
metal buildings

42. 1926.758 Pre-engineered metal buildings
Erection shall not begin until site has been completed
Anchored by minimum of 4 anchor bolts
Rigid framed - 50 percent bolts installed

43. Falling object protection.
Falling object protection.

44. 1926.759 Falling object protection
(a) Securing loose items aloft.
(b) Overhead protection.

45. Falling objects

46.
Fall protection

47. No can do??

48. 1926.760 Fall protection (a) General requirements. (b) Connectors.
(c) Controlled decking zone (CDZ).
(d) Covering roof and floor openings.
(e) Custody of fall protection.

49. Fall protection

50. Connectors

51. Fall protection

52. Fall protection

53. Controlled Decking Zone (CDZ)
None

54.
Training

55. 1926.761 Training (a) Training personnel. (b) Fall hazard training.
(c) Special training programs.