ENABLING STRUCTURES - Technoesistechnoesis.co.in/downloadfile/L10-EnablingStructures.pdf ·...
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6/18/2011 1 ENABLING STRUCTURES ENABLING STRUCTURES INNOVATIVE SOLUTIONS INNOVATIVE SOLUTIONS FOR FOR COMPLEX CONSTRUCTION PROBLEMS COMPLEX CONSTRUCTION PROBLEMS BY BY ER. A.B. KARNIK ER. A.B. KARNIK CONSULTING ENGINEER CONSULTING ENGINEER EXCITING WORLD OF STEEL STRUCTURES
Transcript of ENABLING STRUCTURES - Technoesistechnoesis.co.in/downloadfile/L10-EnablingStructures.pdf ·...
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ENABLING STRUCTURESENABLING STRUCTURES
INNOVATIVE SOLUTIONSINNOVATIVE SOLUTIONSFORFOR
COMPLEX CONSTRUCTION PROBLEMSCOMPLEX CONSTRUCTION PROBLEMS
BYBY
ER. A.B. KARNIKER. A.B. KARNIKCONSULTING ENGINEERCONSULTING ENGINEER
EXCITING WORLD OF STEEL STRUCTURES
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PART 1- INTRODUCTION
PART 2 - CASE STUDIES FOR ENABLING STRUCTURES
PART 3 - SPECIAL STRUCTURES
DO NOT FORGET NEWTON!!!!
PART 1
WHAT IS ENABLING STRUCTURE ?
HOW TO ARRIVE AT DESIGN LOADS ?
INFORMATION FROM CLIENT THRO’SEARCHING QUESTIONS.
SEGREGATION OF INFORMATION.
IF INFORMATION NOT AVAILABLE HOW TO APPROXIMATE ?
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DETERMINATION OF FACTOR OF SAFETY.
• SERVICEABILITY REQUIREMENT MORE PREDOMINANT.
• F.S. JUST SUFFICIENT TO CATER FOR STRENGTH.
• D.L AND L.L NEED NOT BE AS PER IS CODES.
STRUCTURAL SCHEME
• SAFETY.
• ECONOMY WRT MATERIAL CONSUMPTION.
• EASE OF EXECUTION OF GIVEN SCHEME.
• ECONOMY WRT TIME FOR ERECTION AND ACTUAL OPERATION.
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TYPES OF STRUCTURES
MARINE AND RIVER CONSTRUCTION
SUB STRUCTURE SUPER STRUCTURE
UNDERGROUND
UNDER WATER
PORTS JETTIES BRIDGES
CASE STUDY 1
50 MET LONG FLOATING WALKWAY BRIDGE
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SALIENT POINTS
1. ACCESS TO WORK SITE.
2. DEPTH OF WATER MORE THAN 5.0 MET.
3. PRINCIPLES OF HYDRAULICS AND STABILITY.
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CASE STUDY 2
JACKUP PLATFORM
NO ACCESS AVILABLE.WHAT IS THE SOLUTION ?
MOORING DOLPHINSMOORING DOLPHINSFORFOR
WESTERN INDIA SHIPYARD,WESTERN INDIA SHIPYARD,GOAGOA
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�JACK-UP PLATFORM DESIGNED FOR 3 NUMBERS. 1200 MM DIA. PILE.
�PROVIDED WITH OVER HEAD FACILITY TO INSTALL PILING PULLIES IN THE REQUIRED LOCATION
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JACK UP PLATFORM FOR SOIL EXPLORATION AT JOGESHWAR DEAHEJ FOR IPCL
PILING FOR JETTIES• PILING WORK-- ONSHORE
OFFSHORE• PILES -- PRECAST
INSITU
• CHALLENGES IN OFF SHORE PILING.
• RANGE OF PILE DIAMETER.
•SPEED OF CONSTRUCTION .
• QUALITY OF CONSTRUCTION.
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CASE STUDY 3
MARINE JETTYMARINE JETTYATAT
DAHEJDAHEJFORFOR
BIRLA COPPER, GUJARATBIRLA COPPER, GUJARAT
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THE JETTY . . .THE JETTY . . .
� 1152 M LONG IN APPROACH, 208 M LONG ON BERTHING FACE.
� JETTY CONSTRUCTION FROM LAND- END ON METHOD
PILINGPILING
�6 PILES IN 5 DAYS
�FRONT CANTILEVER 24 M�SUPPORTED SPAN 24 M
�30 M REAR CANTILEVER
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WATER CURRENTS OF 3 TO 4 M/ SEC
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15 T CAPACITY UNDER SLUNG CRANE FOR
MATERIAL HANDLING
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ROLLING BRACING IN PLAN
MARINE JETTYMARINE JETTYATAT
DAHEJDAHEJFORFOR
GUJARAT CHEMICAL PORT, GUJARAT CHEMICAL PORT, GUJARATGUJARAT
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THE JETTY . . .THE JETTY . . .
�THE JETTY IS MORE THAN 1000 M LONG
PILING . . .PILING . . .
� PILING GANTRY CONSTUCTED PILES UPTO ABOUT 1000M IN LENGTH IN 10 MONTHS WITH FOUR PILES FROM FRONT CANTILEVER OF 24M & TWO PILES FROM SIDE CANTILEVER OF 8M.
� THIS GANTRY ALSO HAD 30M REAR CANTILEVER FOR 20T CAPACITY UNDER SLUNG CRANE.
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PILING . . .PILING . . .
� TAILOR MADE ERECTION GANTRY WAS ALSO DESIGNED FOR HANDLING OF PRECAST CONCRETE UNITS.
� REST OF THE GANTRY WAS DONE UP WITH STEEL PILES HAVING VERTICAL & RAKER PILES IN COMBINATION.
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NOTE- THE BRACKET ON SIDE FOR ROLLING THE GANTRY
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PRECAST CONCRETE ERECTION GANTRY
MARINE JETTY MARINE JETTY FORFOR
THERMAL POWERSTATION THERMAL POWERSTATION AT AT
TUTICORIN,TAMILNADUTUTICORIN,TAMILNADU
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THE JETTY . . .THE JETTY . . .
�THE JETTY WAS ABOUT 1000 M LONG WITH TWIN PILE BENTS
SPACED AT 20 M C/C.
THE GANTRY . . .THE GANTRY . . .
�THE GANTRY HAD 20 M LEFT CANTILEVER, 10 M SUPPORTED SPAN AND 30 M RIGHT CANTILEVER.
�50 M LONG FLOATING BRIDGE WAS ALSO DESIGNED FOR BREAK WATER TO JETTY SITE APPROACH .
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BRACING THE PILES
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PILING GANTRY FOR JETTY AT PILING GANTRY FOR JETTY AT AGATTI AGATTI
LAKSHADWEEPLAKSHADWEEPJETTY HEAD JETTY HEAD
AT AN ANGLE OF 104 DEGREESAT AN ANGLE OF 104 DEGREES
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ASH DISPOSAL ASH DISPOSAL PIPE LINE BRIDGE PIPE LINE BRIDGE
FOR FOR THERMAL POWERSTATION THERMAL POWERSTATION
ATATDAHANU,DAHANU,
MAHARASHTRAMAHARASHTRA
�JACK-UP PLATFORM DESIGNED FOR 3 NOs.600 MM DIA. PILE.
�MOVING RIG ON PLARFORM & SUSPENDED PILING PULLEY ADJUSTABLE IN REQUIRED LOCATION
�PILE GROUPS SPACED AT 30M C/C TO SUPPORT STEEL GIRDERS
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JACK UP PLATFORM FOR ASH DISPOSAL PIPE LINE BRIDGE PILING FOR THERMAL POWER STATION, DAHANU
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CASE STUDY 4
SUPER STRUCTURE
BRIDGE ON MAHANANDA BRIDGE ON MAHANANDA RIVERRIVER
ATATDALKHOLA DALKHOLA
WEST BENGALWEST BENGAL
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THE BRIDGE . . .THE BRIDGE . . .� P.S.C. BOX GIRDER BRIDGE� 12 SPANS OF 52.80 M, SUPPORTED ON
WELLS-PIERS.� 1200 T BOX GIRDER TRAVELLING
STAGING� TEMPORARY 3 PILE GROUPS ON EACH
SIDE TO BREAK THE SPAN TO 13.2M FOR SUSPENSION OF SHUTTERING ABOVE DECK SLAB
� TIME CYCLE OF 100 DAYS REDUCED TO 60 DAYS
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NOTE THE SUSPENDERS FOR CAPACITY 60 T
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BRIDGE ON SOMESHWAR BRIDGE ON SOMESHWAR CREEKCREEK
AT AT RATNAGIRI MAHARASHTRARATNAGIRI MAHARASHTRA
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�THE BRIDGE IS 58 M LONG HAVING ONE SPAN OF 40 M BETWEEN ABUTMENT & CENTRAL WELL PIER.
�REST OF THE LENGTH CANTILEVERED.
�CENTERING BOX GIRDER TO SUPPORT P.S.C. BOX GIRDER –WEIGHING ABOUT 500 T.
�CENTERING BOX OF 39 M LENGTH WAS LAUNCHED FROM ABUTMENT OVER TEMPORARY PAIR OF COLUMNS AT 13 M C/C SPACING.
�CENTER BOX WAS LOWERED TO REQUIRED LEVEL
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1/3RD LENGTH OF CANTILEVER
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PART 3
SPECIAL STRUCTURES
LIMESTONE STOCK PILE LIMESTONE STOCK PILE SHEDSHEDFORFOR
CLINKER PLANTCLINKER PLANTAT JAFARABADAT JAFARABAD
FORFORNARMADA CEMENT NARMADA CEMENT
COMPANY LTD.COMPANY LTD.
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�COVERING THE LIME STOCK WAS NECESSARY WHILE THE PLANT WAS IN OPERATION
�THE SHED WAS TO BE ERECTED IN PARTS OF 53 M WIDTH X 20 M LENGTH, 30 M AWAY AND ROLLING IN POSITION .
� TOTAL LENGTH – 200 M
� TWO PORTALS 10M APART & TRIANGULAR PURLINS IN ROOF ALONG WITH SIDE CLADING CANTILEVERING 5M, CONNECTED IN TANDEN & ROLLED ON RAILS WITH TROLLEYS ATTACHED TO THEIR SHOE.
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SPECIAL DETAIL FOR HINGE
BRIDGE ON BRIDGE ON RAILWAY LINERAILWAY LINENEAR ITARASINEAR ITARASI
MADHYA PRADESH.MADHYA PRADESH.
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�THE BRIDGE HAS 45 DEGREES SKEW SPAN OF 40M
�6 PSC GIRDERS WEIGHING 140T EACH CONSTRUCTED ON ELEVATED STAGING
� WINCHED & SIDE SHIFTED TO REQUIRED POSITION
�IN-SITU DECK SLAB WITH SUSPENDED SHUTTERING
�WEB SHUTTER OF 6M HANDLED WITH OVERHEAD MONORAI
�HINGED AT BOTTOM EDGE OF STAGING FACILITATED THE ROTATION FROM VERTICAL TO HORIZONTAL POSITION. IT ACTED AS A WORKING PLATFORM ALSO.
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TWO FOLD USE OF SHUTTERING ON HINGE ACTS AS
WORKING PLATFORM FOR REINF ASSEMBLEY
MOORING DOLPHINMOORING DOLPHINFORFOR
OIL JETTY OIL JETTY ATAT
MANGALOREMANGALORE
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� MAXIMUM HORIZONTALPULL 230T.
� FREE WATER DEPTH 18M
� ALLOWABLE DEFLECTION 6MM
� ALTERNATIVE I - VERTICAL PILES WOULD HAVE RESULTED IN LARGE DEFLECTIONS; 1200 MM DIA. PILES IN LARGE No. – COSTLY
� ALTERNATIVE II – RAKER PILES CONNECTED ALONG OUTER EDGE OF 8X8M PILE CAP – UNACCEPTABLE DEFLECTIONS & SEVERE BM & AXIAL FORCE
� ALTERNATIVE III – 4 INDIVIDUAL PILE GROUPS OF 3-800 DIA AT 1:4 RAKE. PILE CENTER LINE MEETING IN PILE CAP & TRIPOD FORMATION AT EACH CORNER . THIS RESULTED IN REDUCED DEFLECTION & BM.
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ALTENATIVE II
ALTENATIVE III
MORE EFFICIENT
ALTENATIVE I
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CENTERING FOR 125T CENTERING FOR 125T FENDER BLOCKFENDER BLOCK
FORFORCONTAINER BERTHCONTAINER BERTH
ATATADANI PORTADANI PORT
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�HORIZONTAL BEAM SPANING 13M – COSTLY
� INVERTED TRIANGLE IN STEEL USED TO TRANSFER THE FORCE. UTILISING FULL CAPACITY IN TENSION.
CRADDLE FOR 125 T FENDER BLOCK
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CRANE FOR ERECTION OF CRANE FOR ERECTION OF LARGE SPAN SHED OVER LARGE SPAN SHED OVER
WATERWATER
�ERECTION CRANE DESIGNED TO ERECT THE LARGE SPAN SHED IN A RECORD TIME
�SHED – 41M WIDE, 130M LONG & 30M HIGH
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CRANE DESIGNED TO ERECT SHED OVER WATERCRANE DESIGNED TO ERECT SHED OVER WATER
CRANE OUT/OUT 48 M x 34 M HIGH x 24 M BASE WIDTHCRANE OUT/OUT 48 M x 34 M HIGH x 24 M BASE WIDTH
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FLOATING PONTOON FOR BANDFLOATING PONTOON FOR BAND--DRAIN WORK FOR SOIL DRAIN WORK FOR SOIL
CONSOLIDATION AT DEEP WATER CONSOLIDATION AT DEEP WATER PORT PORT
ATATKAKINADAKAKINADA
PONTOONPONTOON
� WHY BAND- DRAINS ARE REQUIRED ?� TAILOR-MADE UNIQUE PONTOON WAS
DESIGNED� ACHIEVED A WORLD RECORD OF
2200 BAND- DRAINS IN A DAY FOR VERY SOFT CLAY CONSOLIDATION FOR BREAK WATER
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TYPICAL SECTION
KEY PLAN SHOWING CONCRETE TRACK
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REMOVABLE STEEL REMOVABLE STEEL COFFERDAM FORCOFFERDAM FORINTAKE CHANNEL INTAKE CHANNEL
7M WIDE X 12M HIGH7M WIDE X 12M HIGH
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SPEEDY CONSTRUCTION OF SPEEDY CONSTRUCTION OF 12M HIGH RCC WALL WITH 12M HIGH RCC WALL WITH
BUTTRESSESBUTTRESSES
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17 M HIGH RCC WALL ON 17 M HIGH RCC WALL ON HILL SLOPEHILL SLOPE
FOR FOR BUNGALOWBUNGALOW
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THANK
YOU
