Straight stair:  Here there is no change in the direction of any flight between two successive floors.  It can be straight run with a single flight between floors or a series of flights without change indirection Parallel stairs Angle stairs Scissors stair  Straight stair can have a change in direction at any intermediate landing.  In parallel stair, there is complete reversal of direction occurs.  In angle stair, successive flights are at an angle to each other.  Scissor stairs are comprised of a pair of straight runs in opposite direction and are placed on opposite sides of a fire resistive wall. - Study24x7
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soyab khan
12 Apr 2019 09:34 AM study24x7 study24x7

Straight stair:  Here there is no change in the direction of any flight between two successive floors.  It can be straight run with a single flight between floors or a series of flights without change indirection Parallel stairs Angle stairs Scissors stair  Straight sta...

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