Matched toApproach Slabbridge.approach_earthwork_system.approach_slabon “Approach Slab”
| The class asks for | Value | How | From |
|---|---|---|---|
| LengthLwants m/mm | 3500 mmDirectly labelled "Approach slab length" = 3500 in multiple plan crops (e.g., bridge_deck_and_approach_slab_p01_r05: "Approach slab length","value":"3500"; deck_p01_r03 and others repeat the same 3500 value for both right and left approach slabs).The plan-view crops consistently label the approach slab length as 3500 (mm) at both abutment ends and both carriageways, so this is a direct, unambiguous read for the item's own dimension. | read | p1 · p01_r05p1 · p01_r03p1 · p01_r03 half plan of bridge deck with crash barriers |
| WidthWwants m/mm | not establishedAssigning the carriageway or bridge width to the approach slab would be guessing at a neighbouring element's dimension rather than reading the slab's own width; no explicit approach-slab width callout exists in any crop. | not found | |
| ThicknessTwants m/mm | 300 mmLabelled directly as "300 THK. APPROACH SLAB" / "Approach Slab Thickness = 300" in the longitudinal elevation crops.Multiple elevation crops explicitly call out the approach slab thickness as 300mm, consistently at both abutment ends. Directly stated value. | read | p2 · p02_r01p2 · p02_r01 full longitudinal elevation of bridge with hfl lwlp2 · p02_r02 elevation of bridge spans from abutment a1 to a2 |
| Instance CountNwants count | 4 countPlan crop (bridge_deck_and_approach_slab_p01_r05) explicitly shows 2 approach slabs at abutment A1 ("one on right side carriageway approach and one on left side carriageway approach"). The bridge is symmetric with a wall-type abutment at A2 mirroring A1 and the same dual-carriageway configuration throughout (per elevation crops showing '300 THK. approach slab at both abutments'). Applying the same right/left carriageway split at A2: 2 (at A1) + 2 (at A2) = 4.No single crop shows all four approach slabs simultaneously; the plan crops only detail A1's end (2 slabs, one per carriageway) while elevation crops (which cannot distinguish left/right carriageways in a longitudinal view) state 'approach slab at both ends' (count 2, meaning both abutments). Combining these — 2 slabs per abutment end × 2 abutments — gives 4, but this relies on an assumed symmetry not explicitly drawn for A2, so confidence is low. | derivedcheck | p1 · p01_r05p2 · p02_r01p2 · p02_r02 elevation of bridge spans from abutment a1 to a2 |
| Concrete Gradefck | M30General notes table lists "APPROACH SLAB" grade of concrete = M30.Directly read from the concrete grade schedule in the general notes, which explicitly assigns M30 to the Approach Slab component. | read | p2 · p02_r06 notes of general design notes |
Worked out by anthropic/claude-sonnet-5 from the readings below, which are the source. A derived value shows its arithmetic — check it against the drawing before it is priced.
Every dimension read for it4
- 300 THK.Approach slab thicknessp2 · p02_r02
- 300Approach slab thicknessp2 · p02_r01
- 300 mmApproach slab thicknessp2 · p02_r01 full longitudinal elevation of bridge with hfl lwl
- 300 mm (THK.)Approach slab thicknessp2 · p02_r02 elevation of bridge spans from abutment a1 to a2
Notes on the sheets that carry it
- p1RCC CRASH BARRIER
- p1APPROACH SLAB
- p1C/L OF EXP. JOINT
- p1C/L OF MEDIAN
- p1C/L BRIDGE (RIGHT SIDE)
- p1C/L BRIDGE (LEFT SIDE)
- p1TO DEWAS
- p1TO PIKARADIYA
- p130° SKEW
- p1HALF PLAN SHOWING DECK LEVEL
- p1HALF PLAN SHOWI[NG...] (text cut off)
- p1(SCALE 1:300)
- p15000 (TYP.)
- p1HALF PLAN SHOWING DECK LEVEL (SCALE 1:300)
- p1RCC CRA... (truncated, likely 'RCC CRASH BARRIER')
- p21. ALL DIMENSIONS ARE ... OTHERWISE SPECIFIED.
- p22. DIMENSIONS ARE NOT FOLLOWED.
- p23. THIS DRAWING SHALL ALIGNMENT DRAWINGS
- p24. THE BRIDGE HAS PER... (text cut off)
- p21. ALL DIMENSIONS ARE IN MILLIMETERS AND LEVELS ARE IN ... OTHERWISE SPECIFIED.
- p22. DIMENSIONS ARE NOT TO BE SCALED. ONLY WRITTEN DIMEN... FOLLOWED.
- p23. THIS DRAWING SHALL BE READ IN CONJUNCTION WITH RESP... ALIGNMENT DRAWINGS.
- p24. THE BRIDGE HAS BEEN DESIGNED FOR FOUR LANE OF CLAS... CLASS 70R + TWO LANE OF CLASS A, ONE LANE OF 70R -... 70R OR SV LOADING WHICHEVER GOVERNS, IS CONSIDERED
- p25. GRADE OF CONCRETE FOR VARIOUS STRUCTURAL COMPONEN... FOLLOWS:-
- p22. DIMENSIONS ARE NOT TO BE SCALED. ONLY WRITTEN DIM...FOLLOWED.
- p23. THIS DRAWING SHALL BE READ IN CONJUNCTION WITH RES...ALIGNMENT DRAWINGS.
- p24. THE BRIDGE HAS BEEN DESIGNED FOR FOUR LANE OF CLA...CLASS 70R + TWO LANE OF CLASS A, ONE LANE OF 70R...70R OR SV LOADING WHICHEVER GOVERNS, IS CONSIDERED.
- p25. GRADE OF CONCRETE FOR VARIOUS STRUCTURAL COMPONE...FOLLOWS:-
- p21. ALL DIMENSIONS ARE (text cut off, partial) OTHERWISE SPECIFIED.
- p22. DIMENSIONS ARE N... (text cut off) FOLLOWED.
- p23. THIS DRAWING SHAL... (text cut off) ALIGNMENT DRAWING... (text cut off)
- p2ALL DIMENSIONS ARE IN MILLIMETERS AND LEVELS ARE IN METERS UNLESS OTHERWISE SPECIFIED.
- p2DIMENSIONS ARE NOT TO BE SCALED. ONLY WRITTEN DIMENSIONS SHALL BE FOLLOWED.
- p2THIS DRAWING SHALL BE READ IN CONJUNCTION WITH RESPECTIVE HIGHWAY ALIGNMENT DRAWINGS.
- p2THE BRIDGE HAS BEEN DESIGNED FOR FOUR LANE OF CLASS A, ONE LANE CLASS 70R + TWO LANE OF CLASS A, ONE LANE OF 70R + ONE LANE OF 70R OR SV LOADING WHICHEVER GOVERNS, IS CONSIDERED AS LIVE LOAD.
- p2GRADE OF CONCRETE FOR VARIOUS STRUCTURAL COMPONENTS SHALL BE AS FOLLOWS:- PSC PRECAST GIRDER-M50; R.C.C. CAST IN SITU DECK SLAB-M45; R.C.C. END CROSS GIRDER-M45; R.C.C. INTERMEDIATE CROSS GIRDER-M45; BEARING PEDESTAL-M50; CRASH BARRIER-M40; APPROACH SLAB-M30; LEVELLING COURSE-M15; DIRT WALL & SLAB-M35; ABUTMENT & PIER-M45; PILE FOUNDATION-M35.
- p2CLEAR COVER TO ANY REINFORCEMENTS SHALL BE AS FOLLOWS: FOUNDATION...75mm; SUBSTRUCTURE ABUTMENT & ABUTMENT CAP...45mm, PIER & PIER CAP...45mm; SUPERSTRUCTURE...45mm.
- p2ALL REINFORCING STEEL SHOULD BE HIGH YIELD STRENGTH DEFORMED (TMT) BARS OF GRADE-Fe 550D, CONFORMING TO IS: 1786.
- p2STRIP SEAL TYE OF EXPANSION JOINT SHALL BE PROVIDED AS PER M O R T H SPECIFICATION.
- p2BITUMINOUS CONCRETE 50MM THICK LAID IN SINGLE LAYER.
Every crop it was read in — the drawing beside what the model took off it
Page 1
p01_r05Plan
- Approach slab×2rectangular (skewed/angled)reinforced concreteOne shown on each carriageway (left and right), abutting the abutment/expansion joint line, skewed relative to carriageway
40000 Overall width16550 Carriageway width13500 Carriageway width1500 Footpath width450 Barrier/edge offset100 Offset2900 Median width3500 Approach slab length+7 more
p01_r03Plan
- Approach slab×2rectangularreinforced concreteShown at both approach ends adjacent to abutment/embankment
80000 ROW width40000 Width (each side)16550 Bridge width13500 Carriageway width1500 Footpath dimension100 Kerb offset450 Barrier offset2900 Median offset+17 more
p01_r03 half plan of bridge deck with crash barriersPlan
- Approach slab×2rectangularreinforced concreteOne on right-side carriageway approach, one on left-side carriageway approach
80000 Overall ROW width40000 Overall width40000 Overall width40000(SQ) Span length (square)46189(SK) Span length (skew)40000(SQ) Span length (square) right side46189(SK) Span length (skew) right side37761(SQ) Distance (square)+15 more
p01_r05 half plan showing deck levelPlan
- Approach Slab×2rectangular, skewedreinforced concreteone each for right and left carriageway
40000 mm Overall width1500 mm Footpath width100 mm Kerb/edge strip450 mm Crash barrier offset13500 mm Carriageway width16550 mm Bridge width (right/left)2900 mm Median width3500 mm Approach slab length+7 more
Page 2
p02_r11Cross Section
- Approach slab×1rectangular tapered/steppedreinforced concreteSlab at top left with 1500 and 2850 sub-dimensions, adjacent to abutment cap
1070123680 EXP.GAP92 EXP.GAP230265015002850+9 more
p02_r02Elevation
- Approach Slab×2rectangular slabconcrete300 THK. APPROACH SLAB at both ends
40000 Span length (square)46188 Span length (skew)46000 Span length (square)46188 Span length (skew)80 Expansion gap (square)92 Expansion gap (skew)80 Expansion gap (square)92 Expansion gap (skew)+44 more
p02_r01Elevation
- Approach slab×2rectangularreinforced concrete300 THK, one at each abutment
40000 Span A1 to P1 (square)46188 Span A1 to P1 (skew)46000 Span P1 to A2 (skew)46188 Span P1 to A2 (skew, alt)80 Expansion gap (square)92 Expansion gap (skew)37761 Distance (square)43602 Distance (skew)+38 more
p02_r01 full longitudinal elevation of bridge with hfl lwlElevation
- Approach slab×2rectangularreinforced concrete300 thk. approach slab at both ends
40000(SQ) 46188(SK) mm Span A1 to P146000(SK) 46188(SK) mm Span P1 to A237761(SQ) 43602(SK) mm Bearing to bearing distance37761(SQ) 43602(SK) mm Bearing to bearing distance80(SQ) 92(SK) mm Expansion gap80(SQ) 92(SK) mm Expansion gap1070(SQ) 1236(SK) mm Bearing offset1170(SQ) 1350(SK) mm Bearing offset+37 more
p02_r02 elevation of bridge spans from abutment a1 to a2Elevation
- Approach Slab×2rectangular slabreinforced concrete300 THK, at each abutment approach
40000(SQ) 46188(SK) mm Span length (A1 to P1)46000(SK) mm Span length (P1 to A2)37761(SQ) 43602(SK) mm Bridge centerline distance A1 to P137761(SQ) 43602(SK) mm Bridge centerline distance P1 to A280(SQ) 92(SK) mm Expansion gap at A1/A21070(SQ) 1236(SK) mm Distance from bearing centerline1070(SQ) 1236(SK) mm Distance from bearing centerline1170(SQ) 1350(SK) mm Distance at P1 bearing (left)+31 more
p02_r06 notes of general design notesNotes
- Approach slabconcreteConcrete grade M30
75 mm Clear cover - Foundation45 mm Clear cover - Abutment & Abutment Cap45 mm Clear cover - Pier & Pier Cap45 mm Clear cover - Superstructure50 MM Bituminous concrete thickness400 mm Bearing/pedestal depth basis200 mm Minimum bearing height threshold200 mm Pedestal adjustment height+5 more