Matched toApproach Slabbridge.approach_earthwork_system.approach_slabon “Approach slab”
| The class asks for | Value | How | From |
|---|---|---|---|
| LengthLwants m/mm | not establishedNothing in the readings states or allows arithmetic for the approach slab length; the general arrangement defers it to a miscellaneous drawing. | not found | |
| WidthWwants m/mm | not establishedAdopting the 16550 deck width as the approach slab width would be an assumption, not a reading; the dimension has a stated owner (deck/foundation width). | not found | |
| ThicknessTwants m/mm | 300 mmElevation callout '300 THK. APPROACH SLAB' (approach slab at each end); listed as measurement 'Approach slab thickness = 300 THK.'. Note 1 confirms all dimensions are in millimetres.Value is stated outright on the elevation and explicitly attributed to the approach slab (the 150 THK. beneath is the PCC levelling course, a separate layer). | read | p2 · p02_r02p2 · p02_r02 elevation of bridge deck piers and abutments bridge at ch 64 412 |
| Instance CountNwants count | 2 countLongitudinal elevation shows one 300 THK. approach slab behind each abutment: A1 end + A2 end = 2. The deck-level half plan also labels 'APPROACH SLAB' on both carriageways at the A1 end, so if counted per carriageway the total for the twin structure could be 2 ends × 2 carriageways = 4; the elevation (single carriageway section) states 2.Count of 2 is directly established by the elevation (one at each abutment), but the twin-carriageway plan raises an ambiguity (possible 4 for the whole crossing), hence low confidence. | readcheck | p2 · p02_r02 elevation of bridge deck piers and abutments bridge at ch 64 412p2 · p02_r02p1 · p01_r02 |
| Concrete Gradefck | M30 -General notes, item 5 'GRADE OF CONCRETE FOR VARIOUS STRUCTURAL COMPONENTS SHALL BE AS FOLLOWS:- ... APPROACH SLAB --------------M30'.Grade is stated outright against 'APPROACH SLAB' in the concrete grade schedule (the M15 is for the levelling course beneath, not this item). | read | p2 · p02_r04p2 · p02_r05p2 · p02_r04 notes of general design notes and pile load table |
Worked out by anthropic/claude-opus-5 from the readings below, which are the source. A derived value shows its arithmetic — check it against the drawing before it is priced.
How the sheets named it
Every dimension read for it5
- M30Concrete grade - approach slabp2 · p02_r04
- M30Grade of concrete – approach slabp2 · p02_r05
- 300 THK.Approach slab thicknessp2 · p02_r02 elevation of bridge deck piers and abutments bridge at ch 64 412
- M30Grade of concrete – approach slabp2 · p02_r04 notes of general design notes and pile load table
- M30Grade of concrete – approach slabp2 · p02_r05 general design notes 1 18 with load table
Notes on the sheets that carry it
- p130° SKEW
- p1RCC CRASH BARRIER
- p1C/L OF EXP. JOINT
- p15000 (TYP.)
- p1(SCALE 1:300)
- p2POT-PTFE BEARING (TYP.)
- p2RCC SEISMIC STOPPER
- p2STONE PITCHING
- p2INDEPENDENT RETAINING WALL
- p2600 THK. FILTER MEDIA
- p21200 DIA BORED CAST-IN-SITU PILES
- p2(SCALE 1:150)
- p2NOTES:
- p21. ALL DIMENSIONS ARE IN M... OTHERWISE SPECIFIED. (text cut off at right edge)
- p22. DIMENSIONS ARE NOT TO ... FOLLOWED. (partial)
- p23. THIS DRAWING SHALL BE ... ALIGNMENT DRAWINGS. (partial)
- p24. THE BRIDGE HAS BEEN DE... CLASS 70R + TWO LANE ... 70R OR SV LOADING WHIC... (partial)
- p25. GRADE OF CONCRETE FOR ... FOLLOWS:—
- p2• PSC PRECAST GIRDER ——... (partial)
- p2• R.C.C. CAST IN SITU D... (partial)
- p2• R.C.C. END CROSS GIRDE... (partial)
- p2• R.C.C. INTERMEDIATE CROS... (partial)
- p2• BEARING PEDESTAL ——... (partial)
- p2300 THK. APPROACH SLAB
- p2150 THK. PCC LEVELING COURSE
- p2DECK CONTINUITY
- p2RCC COLUMN PIER (TYP.)
- p21200# RCC CAST IN SITU PILE (TYP.)
- p2PRECAST PSC GIRDER (TYP.)
- p2WALL TYPE ABUTMENT
- p2LAUNCHING APRON
- p21. ALL DIMENSIONS ARE IN MILLIMETERS AND LEVELS ARE IN METERS UNLESS OTHERWISE SPECIFIED.
- p22. DIMENSIONS ARE NOT TO BE SCALED. ONLY WRITTEN DIMENSIONS SHALL BE FOLLOWED.
- p23. THIS DRAWING SHALL BE READ IN CONJUNCTION WITH RESPECTIVE HIGHWAY ALIGNMENT DRAWINGS.
- p24. THE 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.
- p25. GRADE OF CONCRETE FOR VARIOUS STRUCTURAL COMPONENTS SHALL BE AS FOLLOWS:-
- p2PSC PRECAST GIRDER -----------M50
- p2R.C.C. CAST IN SITU DECK SLAB ----M45
- p2R.C.C. END CROSS GIRDER ---- ---M45
- p2R.C.C. INTERMEDIATE CROSS GIRDER --M45
Every crop it was read in — the drawing beside what the model took off it
Page 1
p01_r02Plan
- Approach slab×2skewed rectangularreinforced concreteLabelled 'APPROACH SLAB' on both carriageways at the A1 end.
40000(SQ) 46189(SK) Span A1–P1 (square / skew)40000(SQ) 46189(SK) Span P1–A1 (square / skew)37761(SQ) 43603(SK) Clear/effective span (square / skew)1070(SQ) 1236(SK) Dimension at abutment (square / skew)1170(SQ) 1350(SK) Dimension at pier (square / skew)5000 Drainage spout spacing3500 Girder spacing3500 Girder spacing (leader dimension on approach slab)+14 more
Page 2
p02_r07Section
- Approach slab / approach pavement wedge×1tapered slabnot stated (dotted fill)left-hand tapered element with turned-down end at embankment
1070 (SQ.) Distance from face to C/L of bearing (square)1236 (SK.) Distance from face to C/L of bearing (skew)80(SQ.) 92(SK) Expansion gap230 Deck slab thickness2650 Superstructure depth3500(SQ) Dimension at deck top (square)1500 Dimension2850 Dimension+9 more
p02_r02Elevation
- Approach slab×2rectangular slabreinforced concrete300 THK. approach slab at each end
40000(SQ) 46188(SK) Span (C/L exp. joint to C/L brg. at pier), left span46000(SK) 46188(SK) Span, right span37761(SQ) 43602(SK) C/C bearing span, left37761(SQ) 43602(SK) C/C bearing span, right80(SQ.) 92(SK) Expansion gap80(SQ.) 92(SK) Expansion gap1070(SQ) 1236(SK) C/L exp. joint to C/L of bearing1070(SQ) 1236(SK) C/L exp. joint to C/L of bearing+42 more
p02_r04Notes
- Approach slabconcrete M30Details to be taken from miscellaneous drawing.
M50 Concrete grade - PSC precast girderM45 Concrete grade - R.C.C. cast in situ deck slabM45 Concrete grade - R.C.C. end cross girderM45 Concrete grade - R.C.C. intermediate cross girderM50 Concrete grade - bearing pedestalM40 Concrete grade - crash barrierM30 Concrete grade - approach slabM15 Concrete grade - levelling course+19 more
p02_r05Notes
- Approach slabconcrete M30
M50 Grade of concrete – PSC precast girderM45 Grade of concrete – R.C.C. cast in situ deck slabM45 Grade of concrete – R.C.C. end cross girderM45 Grade of concrete – R.C.C. intermediate cross girderM50 Grade of concrete – bearing pedestalM40 Grade of concrete – crash barrierM30 Grade of concrete – approach slabM15 Grade of concrete – levelling course+19 more
p02_r02 elevation of bridge deck piers and abutments bridge at ch 64 412Elevation
- Approach slab · rectangular slab · ×2 · 300 THK. with 150 THK. PCC levelling course beneath×2rectangular slabreinforced concrete300 THK. with 150 THK. PCC levelling course beneath
Span length (C/L exp. joint to C/L pier), left span = 40000(SQ) 46188(SK) — on Span A1-P1 Span length (C/L exp. joint to C/L exp. joint), left spanSpan length (C/L pier to C/L exp. joint), right span = 46000(SK) 46188(SK) — on Span P1-A2 Span length, right span80(SQ.) 92(SK) Expansion gap80(SQ.) 92(SK) Expansion gap37761(SQ) 43602(SK) C/L of brg. to C/L of brg. (left span)37761(SQ) 43602(SK) C/L of brg. to C/L of brg. (right span)1070(SQ) 1236(SK) C/L exp. joint to C/L of bearing1070(SQ) 1236(SK) C/L exp. joint to C/L of bearing+39 more
p02_r04 notes of general design notes and pile load tableNotes
- Approach slabnot drawnconcrete M30
M50 Grade of concrete – PSC precast girderM45 Grade of concrete – R.C.C. cast in situ deck slabM45 Grade of concrete – R.C.C. end cross girderM45 Grade of concrete – R.C.C. intermediate cross girderM50 Grade of concrete – bearing pedestalM40 Grade of concrete – crash barrierM30 Grade of concrete – approach slabM15 Grade of concrete – levelling course+17 more
p02_r05 general design notes 1 18 with load tableNotes
- Approach slabconcrete M30details to be referred from miscellaneous drawing
M50 Grade of concrete – PSC precast girderM45 Grade of concrete – R.C.C. cast in situ deck slabM45 Grade of concrete – R.C.C. end cross girderM45 Grade of concrete – R.C.C. intermediate cross girderM50 Grade of concrete – bearing pedestalM40 Grade of concrete – crash barrierM30 Grade of concrete – approach slabM15 Grade of concrete – levelling course+16 more