STAIRS CONSTRUCTION | BUILDING CONSTRUCTION | SLIDE

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