BUILDING CONSTRUCTION 2
STAIRCASE DESIGN CREATED BY FARAHIM AKBAR
Topics to Cover INTRODUCTION PART OF STAIRS REQUIREMENT TYPES OF STAIRS CLASSIFICATION OF STAIRS (shapes)
WHAT IS STAIRS? SET OF STEPS VERTICAL TRANSPORT A SPACE THAT HAVE STAIRS IS CALLED STAIRCASE
PARTS OF STAIRS bannister /handrail RISER
angled member for handholding
vertical portion between each tread not all stairs have risers
SRING
newel post
supports the treads and risers two string, one on either side of the stairs
turdy vertical post at the end or turn of a banister central pole or support column
BALUSTER
TREAD
hold up the handrail
stepped on
FLIGHT/LANDING
HEAD OF ROOM
level platform at the top or bottom is a flight , landing is provided fro cilmber to have a rest
CLEAR VERTICAL DISTANCE BETWEEN TREADS AND OVERHEAD STRUCTURE
REQUIREMENT OF GOOD STAIRS LOCATION CENTRALLY WITH SUFFICIENT LIGHT AND VENTILATION
LENGHT DEPENDS ON THE TYPES OF BUILDING
PITCH OF STAIRS SHOULD BE MADE FALTTER BY INTRODUCIG LANDING
WIDTH OF STAIRS RESTRCITED MAXIMUN OF 12 AND MINIMUM 3 STEPS
HEAD OF ROOM SHOULD NOT BE LESS THAT 2.1 TO 2.3 M
LANDING WIDTH SHOULD NOT LESS THAT WIDTH OF STAIRS
BALUSTRADE TO AVOID ACCIDENT
WINDERS SHOULD BE AVOIDED
MATERIALS CONATRUCTED USING FIRE RESISTING ,ATERIAL AND GOOD STRENGTH
TYPES OF STAIRS MATERIAL
TIMBER STAIRS
PROS
MADE OF WOOD. STAIRS ARE GENERALLY USED IN WOODEN BUILDINGS. IMPROVING THE AESTHETICS OF THE BUILDING
CONS
MORE AFFORDABLE
PRODUCE LESS NOISE THAN
EASILY DAMAGED BY HIGH HUMIDITY AND BY EXTREME TEMPERATURES
LOW DURABILITY
MASONRY STAIRS
PROS
MOSTLY IN OLD BUILDING USUALLY LESS STEP USE FOR OUTDOOR
CONS
HANDLING IS EASY WITH BRICK
CONSTRCUTION COST LESS
ABSORB WATER
LESS AESTHETIC APPEAL
RCC STAIRS
PROS
USE A BIG BUILDINGS BECAUSE OF LONGER SPAN AND LARGER WIDHT NEEDED
CONS
BETTER FIRE RESISTANCE
EASIER IN CONSTRUCTION
HEAVIER
CONCRETE TAKES TIME TO ATTAIN ITS FULL STRENGTH.
METAL STAIRS
PROS MADE OF CAST IRON FABRICATED TO REQUIRED SHAPE USUALLY USED AS EMERGENCY STAIRS OR USED AS SERVICE STAIRS
CONS
DURABILITY AND LONG LIFE SPAN
DESIGNS ARE ALMOST LIMITLESS
MAY CHANGE COLOR IN TIME
EXPENSIVE
classification of stairs based on shapes
STRAIGHT STAIRS TWO TYPES SINGLE FLIGHT AND DOUBLE FLIGHT NO CHANGE OF DIRECTION STAIR CASE LONG AND NARROW
TURNING THROUGH ONE RIGHT ANGLE CAN BE AFFECTED BY INTRODUSING LANDING OR PROVIDING WINDERS
DOG LEGGED STAIR
QUATER TURN STAIR
TURNING STAIRS
TWO STRAIGHT FLIGHT OF STEPS WITH ABRUPT TURN IN BETWEEN STAIRCASEE HALL WIDTH NEED TO BE SUFFICIENT
DOG LEGGED STAIR
QUATER TURN STAIR
THREE QUATER TURN STAIR
OPEN NEWEL STAIR
CONSTRCUTED IF THERE IS OPENING BETWEEN FLIGHT IN PLAN USUALLY RECTANGULAR IN SHAPE.
TURNING RIGHT ANGEL 270 OPEN WELL IS FORMED
THREE QUATER TURN STAIR
BIFURCATED STAIR
GEOMETRICAL STAIRS
NO NEWEL POST CAHNGED DIRECTION ACHIEVE THROUGH WINDERS REQUIRE SKILL FOR CONSTRUCTION
WIDE FLIGHT IN THE MIDDLE AND DIVIDED INTO TWO NARROW FLIGHT. SUITABLE MODERN SUB BUILDING
BIFURCATED STAIR
GEOMETRICAL STAIRS
VERY COMPLICATED STRUCTURE MADE OF RCC
CIRCULAR & SPIRAL STAIRS
HELICAL STAIRS
CONTINUOUS STAIRS
KNOWN AS SPIRAL STAIRS FROM TOP FOLLOW A CIRCLE SPACE IS LIMITED BUT TRAFFIC LOW RCC, STEEL OR STONE
CIRCULAR & SPIRAL STAIRS
HELICAL STAIRS
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BUILDING CONSTRUCTION STAIRS CONSTRUCTION IUKL SEPT 2021