Steel Staircase Structural Design Calculation

Hello i am a recent graduate structural engineer and i am given a task to design a steel staircase in the philadelphia region.

Steel staircase structural design calculation.

The stringers are notched so that the risers and treads fit into them. It does not include for example cables ladders chutes grating stairs catwalks handrails or ornamental metal. The risers are 16 cm and goings are 30 cm. A rail fixed parallel above the pitch line at the sides of a stair.

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 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. W staircase width.

X width of the opening total run depends on how much space you can allocate in your house for the staircase. This free stair calculator determines stair parameters such as rise total run and angle stringer length based on height run tread and headroom requirement. Beams columns braces plate trusses and fasteners. 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.

Staircase reinforcement calculation definition. Boards from which you plan to build the steps. Structural steel the structural elements that make up the frame that are essential to supporting the design loads e g. Staircase series or flight of steps between two floors.

Though the treads may be supported many other ways. Y the height of the opening total rise usually determined by the distance between the floors in your house. There are typically two stringers one on either side of the stairs. 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.

Traditionally the staircase is a term for stairs accompanied by walls but contemporary usage includes the stairs alone. I know the type of loads and where to apply them so i can figure out the stringer and landing beam sizes. Steel staircase design example calculation cgstrucg structural op 2 nov 18 16 39.