Page 143 - Forensic Structural Engineering Handbook

3.28 DESIGN AND CONSTRUCTION PRACTICES

1926.752. Requirements are provided before steel erection could begin including site
specific erection plans.
1926.753. General requirements of hoisting and rigging, and working under loads.
1926.754. Requirements about stability of steel structures during erection process are
provided. Specific requirements for multistory structures, walking/working surfaces,
installation of shear connectors are given.
1926.755. Special requirements for column anchorage and their field modifications are
provided.
1926.756. Specific requirements for beam and leg erection, diagonal bracings, double
connections at columns and at beam webs over a leg are given. Further, leg splices and
perimeter columns are also dealt with.

1926.757. New requirements are set forth for open web steel joists, field attachments of
steel joists and steel joist girders, erection of steel joists, erection bridging, and placement
of loads at different phases of erection.
1926.758. This section deals with system-engineered metal building.
1926.759. Requirements for protection against falling objects are discussed.
1926.760. Requirements for fall protection during steel erection are provided.
1926.761. Training requirements for those engaged in steel erection are set forth.

Subpart S: Underground Construction, Caissons, Cofferdams,
and Compressed Air

1926.800. Access and egress to underground construction, check-in and checkout proce-
dures, safety instructions, and communications are dealt with. Emergency provisions are
given that deal with hoisting capability, self-rescuers, the need to designate a person above-
ground, emergency lighting, rescue teams, etc. The conditions under which underground
construction could be classified as potentially gassy are given. In addition, conditions under
which potentially gassy operations could be declassified are addressed. Additional require-
ments of gassy operations have been given. Provisions of air quality and monitoring have
been delineated. In the event of potentially gassy and gassy operations, additional require-
ments are provided. Provisions for providing fresh air in underground construction are
given. Illumination requirements for underground construction and fire prevention and
control are provided. Requirements of welding, cutting, and other hot work are addressed.
The safety requirements of guarding portal areas are provided. Ground stability and inspec-
tion of underground structures are discussed. Safety requirements of shaft, blasting,
drilling, haulage equipment, hoisting unique to underground construction, hoists, and per-
sonal hoists are given. The requirements of caissons and work and safety for employees
working in and around caissons are given. Provisions for cofferdams are made. The rules
and regulations of using compressed air are enumerated.

Subpart T: Demolition
This subpart deals with demolition of existing structures. All preparatory operations are dis-
cussed. The requirements of conducting an engineering survey before demolition begins are
given. Safety requirements of stairs, passageways and ladders, chutes, etc., are provided.