Cast - in - place Reinforced Concrete Stair Load Transfer Route
Plate staircase force line:
Stairs - platform beams - walls or columns.
Plate length within 3 meters. Plate can not crack! So to increase the temperature of steel.
Reinforcement: longitudinal configuration of steel, put on the platform beam and floor beam.
Beam staircase force line:
Stepping plate - skew beam - platform beam - wall or column.
When the step board cracked, if the stairs beam intact, just local problems.
Reinforcement: ladder horizontal reinforcement, rest on the ramp beam, plus distribution of steel. Platform main tendons are short span arrangement, according to the long cross-direction arrangement, the vertical distribution of distribution of steel.
But now the general building in the beam staircase rarely used, and rare.
The staircase can take the staircase as a large one-way board. The staircase is a staircase pedal that is directly supported on the staircase beam at both ends. The beamboard staircase is a stepped pedal that rests directly on the skew beam and the skewer rests on the staircase beam at both ends of the ladder.
The staircase is made of concrete slabs, and the beam staircase is a staircase with beams under the staircase board.
The longitudinal load of the staircase is borne by the board, but the longitudinal load of the beam staircase is borne by the beam.
