AuthorWhat is the code compliance for revolved doors? The ANSI standard dictates requirements for manual and power-operated revolving doors. These requirements provide performance standards to minimize the risk of injury for users. For example, ANSI requires a door’s wing folds when 130 foot-pounds of pressure are applied. In addition, revolving door code compliance requires having an opening at least 36 inches wide.
Side-hinged swinging door
As an egress door, the side-hinged swinging door must provide a minimum clear width and height of 32 inches for safety and efficiency. While other door types may be permitted instead of swinging doors, the required size and width for egress doors are the same. Insufficient capacity or width may create bottlenecks in the egress process, preventing the free flow of occupants.
A side-hinged swinging door is required for revolving doors that serve as a secondary exit. It must be a separate exit from the revolving door. A single-swinging door is not allowed in an area where the occupant load is 50 or more. Side-hinged swinging doors are not required in buildings with two or more revolving doors but must provide a single exit.
Emergency stop switch
The IBC has many requirements regarding the location of revolving doors. For example, the regulations specify the maximum revolutions per door, which varies depending on the type and size of the door. The code also details the size and color of emergency stop switches that must be installed on revolving doors. It is also important to note that revolving doors may not form part of an accessible route. If a door does not have these requirements, the door may violate the IBC.
Placement
While this is true for all revolving doors, the size, and style that works best for a building depend on its traffic characteristics and capacity. The typical traffic pattern in a small office building is far different from that of an airport terminal, so the architect should consider the type of people entering and leaving the facility. The door must be large enough to accommodate items like luggage, shopping carts, or even a hospital gurney.
Revolving doors are not airtight, but they can create a barrier that limits airflow while maintaining the desired air quality and noise levels. This type of door also counteracts the effects of stack pressure, which increases with the height of a building. Below are some tips for choosing the right revolving door for your project. Contact a local code enforcement agency if you’re unsure about the type of door that will work for your project.
Height of turnstiles
Turnstiles are used in a variety of settings. Some are used for general access, while others are designed for specific access control purposes. Glass height turnstiles, for example, are an elegant alternative to full-height turnstiles. Designed for maximum security, they are conveniently operating, even in environments with heavy crowds. These are ideal for subways, trade centers, stadiums, governmental buildings, and prisons, as they are suitable for high-security environments. In addition, their hydraulic damping mechanism and self-centering operation make them compatible with all types of access control systems.
Regardless of the height of the barrier, the physical security it provides is still of utmost importance. Turnstiles less than 39 inches can only offer partial egress capability to up to 50 people. However, they cannot be used as the sole means of egress, and a door or gate with panic hardware must be installed to block the exit. A full-height turnstile or tripod turnstile may be set to rotate in case of an emergency freely. Still, it cannot be installed in a location that prevents dedicated emergency egress.
Secure egress
A rotating door’s wing is required by ANSI to bookfold or collapse when a user applies 130 foot-pounds (fps) of pressure to it. People must be able to make a hole at least 36 inches wide within the door in order to easily leave. Manual revolving doors that don’t operate with any sort of door wing locking device are considered permitted doors (automatic and security revolving doors are excluded from this category). Up to 50 persons can be calculated to be able to leave through each door. However, their clearance width, which, once more, must be at least 36″, cannot be greater than 50% of the total clearance permitted by the IBC for escape from all of the doors.