23.B Structural Demolition.
23.B.01 General.
Removal of a facility may include the structure as well as any related appurtenances: fences, parking areas and associated lights, roadways and access from roadways, sidewalks and stairs associated with access, pads, patios, and paved lay-down areas, utilities, underground storage tank (UST)/above ground storage tank (AST), poles, interior and exterior equipment associated with the facility, interior and exterior equipment within the designated perimeter of the facility.
Structural demolition
23.B.02 All operations involving the use of load handling equipment (LHE) must meet Section 16 to include: Certificated of Compliance; documented personnel qualifications (operators, riggers, signal persons, others); LHE inspections, operational and load tests and certifications; and standard lift plan. If the manufacturer of the equipment does not allow the equipment to be utilized as planned, you are prohibited from performing this function.
23.B.03 No personnel shall be working within the structure once the structural demolition process has begun. Before structural demolition can begin, abatement of ACM and other regulated materials must be done.
23.B.04 Structural demolition may include any or all of these features prior to demolition:
- Removal of universal waste prior to the start of facility removal;
- Partial demolition to expose the structure frame;
- Soft demolition.
23.B.05 Mechanical Demolition.
Wrecking ball in action.
- All motorized equipment used on a project must meet requirements of the EM 385-1-1, as well as applicable OSHA requirements. In addition, see National Demolition Association's Demolition Safety Manual, Chapter 7.0 for further information on equipment safety.
- No person shall be permitted in any area that can be affected by demolition when mechanical demolition is being performed. Only those persons necessary for the operations must be permitted in this area at any other time.
- Dust abatement measures will be used to suppress dust during demolition.
- Operators are required to wear respirators per Section 05.
- A demolition ball must be used ONLY if it has been approved by GDA. If the use of a demolition ball is approved:
- (1) The weight of the demolition ball must not exceed 50% of the crane's rated load, based on the length of the boom and the maximum angle of operation at which the demolition ball will be used, or it must not exceed 25% of the nominal breaking strength of the line by which it is suspended, whichever is less;
- (2) The crane boom and load line must be as short as possible;
- (3) The ball must be attached to the load line with a swivel-type connection to prevent twisting of the load line and must be attached by positive means so that the weight cannot be accidentally disconnected.
- (4) Continued on-going inspections by the CP must be made as the demolition work progresses to detect hazards resulting from weakened or deteriorated floors or walls, or loosened material. No employee must be permitted to work where such hazards exist until they are corrected by shoring, bracing, or other effective means.
Knowledge Check Choose the best answer for the question.
23-6. When are persons forbidden in any area outside a building that can be affected by demolition?
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