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1607.7 Loads on Handrails, Guards, Grab Bars, Seats and Vehicle Barrier
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Handrail assemblies and guards shall be designed to resist a load of 50 plf (0.73 kN/m) applied in any direction at the top and to transfer this load through the supports to the structure.
Exceptions:
- For one and two-family dwellings, only the single, concentrated load required by Section 1607.7.1.1 shall be applied.
- In Group I-3, F, H, and S occupancies, for areas that are not accessible to the general public and that have an occupant load no greater than 50, the minimum load shall be 20 pounds per foot (0.29 kN/m).
Handrail and guards shall be able to resist a single concentrated load of 200 pounds (0.89 kN), applied in any direction at any point, and have attachment devices and supporting structure to transfer this loading to appropriate structural elements of the building. This load need not be assumed to act concurrently with the loads specified in the preceding paragraph.
Intermediate rails (all those except the handrail), balusters and panel fillers shall be designed to withstand a horizontally applied normal load of 50 pounds (0.22 kN) on an area equal to 1 square foot (0.09 m2), including openings and space between rails. Reactions due to this loading are not required to be superimposed with those of Section 1607.7.1 or 1607.7.1.1.
Where handrails and guards are designed in accordance with the provisions for allowable stress design (working stress design) exclusively for the loads specified in Section 1607.7.1, the allowable stress for the members and their attachments are permitted to be increased by one-third.
Grab bars, shower seats and dressing room bench seat systems shall be designed to resist a single concentrated load of 250 pounds (1.11 kN) applied in any direction at any point.
Vehicle barrier systems for passenger vehicles shall be designed to resist a single load of 6,000 pounds (26.70 kN) applied horizontally in any direction to the barrier system and shall have anchorage or attachment capable of transmitting this load to the structure. For design of the system, two loading conditions shall be analyzed. The first condition shall apply the load at a height of 1 foot, 6 inches (457 mm) above the floor or ramp surface. The second loading condition shall apply the load at 2 feet, 3 inches (686 mm) above the floor or ramp surface. The more severe load condition shall govern the design of the barrier restraint system. The load shall be assumed to act on an area not to exceed 1 square foot (0.0929 m2), and is not required to be assumed to act concurrently with any handrail or guard loadings specified in Section 1607.7.1. Garages accommodating trucks and buses shall be designed in accordance with a recognized method acceptable to the commissioner that contains provision for traffic railings.
Unless specially protected, columns in parking areas subject to impact of moving vehicles shall be designed to resist the lateral load due to impact and this load shall be considered a variable load. For passenger vehicles, this lateral load shall be taken as a minimum of 6,000 pounds (26.70 kN) applied at least 1 foot 6 inches (457mm); above the roadway, and acting simultaneously with other design loads.
Related Code Sections
1607.7 Structural Design, Loads on Handrails, Guards, Grab Bars, Seats and Vehicle Barrier
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1607.7.2 Structural Design, Grab Bars, Shower Seats and Dressing Room Bench Seats
Grab bars, shower seats and dressing room bench seat systems shall be designed to resist a single concentrated load of 250 pounds (1.11 kN) applied ...
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1607.7.1.1 Structural Design, Concentrated Load
Handrail and guards shall be able to resist a single concentrated load of 200 pounds (0.89 kN), applied in any direction at any point, and have ...
NYC Building Code 2008 > 16 Structural Design > 1607 Live Loads > 1607.7 Loads on Handrails, Guards, Grab Bars, Seats and Vehicle Barrier > 1607.7.1 Handrail Assemblies and Guards > 1607.7.1.1 Concentrated Load
1607.7.1.2 Structural Design, Components
Intermediate rails (all those except the handrail), balusters and panel fillers shall be designed to withstand a horizontally applied ...
NYC Building Code 2008 > 16 Structural Design > 1607 Live Loads > 1607.7 Loads on Handrails, Guards, Grab Bars, Seats and Vehicle Barrier > 1607.7.1 Handrail Assemblies and Guards > 1607.7.1.2 Components