Steel Staircase Structural Design Calculation

This free stair calculator determines stair parameters such as rise total run and angle stringer length based on height run tread and headroom requirement.

Steel staircase structural design calculation.

Steel staircase design example calculation cgstrucg structural op 2 nov 18 16 39. Steel stair design bobber1 structural 3 nov 10 10 56 if you are in seismic territory you may have to have a sliding connection at the base of the stairs so they do not absorb seismic forces and fail especially if they are part of the egress. Hello i am a recent graduate structural engineer and i am given a task to design a steel staircase in the philadelphia region. Staircase with landing continuous at one end factor or structural system k 1 3 𝑑 𝐾11 1 5𝑓 𝜌 𝜌 3 2𝑓 𝜌 𝜌 1 3 2 l d basic 1 5 11 10 1 3 18 31 5 modification factor for span less than 7 m 1 00 modification for steel area provided 𝐴 𝑣 𝐴 𝑒 524 485.

Boards from which you plan to build the steps. Beams columns braces plate trusses and fasteners. Y the height of the opening total rise usually determined by the distance between the floors in your house. The risers are 16 cm and goings are 30 cm.

Though the treads may be supported many other ways. There are typically two stringers one on either side of the stairs. A staircase is defined as set of steps from one floor to another floor or combination of riser and tread to make easy transportation from one floor to another floor in a building. Traditionally the staircase is a term for stairs accompanied by walls but contemporary usage includes the stairs alone.

Design a straight flight staircase in a residential building that is supported on reinforced concrete walls 1 5 m apart center to center on both sides and carries a live load of 300 kg m 2. Z thickness of steps usually is a geometric parameter of the material e g. How to calculate number of riser and tread for a. A rail fixed parallel above the pitch line at the sides of a stair.

It does not include for example cables ladders chutes grating stairs catwalks handrails or ornamental metal. I know the type of loads and where to apply them so i can figure out the stringer and landing beam sizes. Stringer or string the structural member that supports the treads. Structural steel the structural elements that make up the frame that are essential to supporting the design loads e g.

X width of the opening total run depends on how much space you can allocate in your house for the staircase. Staircase series or flight of steps between two floors. W staircase width.