Matched toPot Bearingbridge.superstructure.bearing_system.pot_bearingon “POT-PTFE bearing”
| The class asks for | Value | How | From |
|---|---|---|---|
| LengthLwants m/mm | not establishedThe drawings are a general arrangement set; note 14 states dimensions are tentative and note 16 refers bearing sizing to detail design. No bearing plan dimension exists to read or derive. | not found | |
| WidthWwants m/mm | not establishedNothing in the readings states or permits computation of the bearing plan width; the 3500 spacing is girder/bearing-line spacing, not a bearing dimension. | not found | |
| HeightHwants m/mm | 200 mmGeneral note 16: "THE PIERCAP TOP LEVEL HAS BEEN FIXED CONSIDERING 400mm DEPTH OF BRG. & PEDESTAL. IN CASE THE BEARING HEIGHT IS LESS THAN THAT OF 200mm THEN THE HEIGHT OF THE BEARING SHALL BE ADJUSTED IN 200mm PEDESTAL." Combined depth of bearing + pedestal = 400 mm, of which the pedestal is 200 mm; therefore bearing height allowed = 400 mm − 200 mm = 200 mm.The 400 mm is explicitly a combined bearing + pedestal depth assumption, and the pedestal is stated as 200 mm, so the bearing allowance is 200 mm. This is a design assumption for fixing pier-cap level, not a manufactured bearing height, and note 14 says dimensions are tentative — hence low confidence. | derivedcheck | p2 · p02_r04p2 · p02_r05p2 · p02_r04 notes of general design notes and pile load table |
| Bearing CountN_brgwants count | 40 countDeck level half plan: each carriageway deck has 5 girder lines (1275 + 4 × 3500 + 1275 = 16550) with a bearing square at each girder end. Elevation shows two spans A1–P1 and P1–A2, i.e. 4 bearing lines per carriageway (A1, P1 left, P1 right, A2 — the pier section B-B confirms two bearing lines at P1, one each side of the pier centreline at 1170(SQ)/1350(SK)). Per carriageway: 5 × 4 = 20 bearings. Two carriageways (LHS and RHS decks, both shown on the plan and cross sections): 20 × 2 = 40 bearings.Arithmetic on the stated girder-line spacing and the number of support lines, one bearing per girder end as drawn. The plan-symbol counts actually reported in the crops (12 squares, 'count not reliable') are stated to be unreliable, and no bearing schedule is given, so this count is a construction from geometry rather than a read value — low confidence. | derivedcheck | p1 · p01_r02p2 · p02_r02p2 · p02_r09p3 · p03_r01 |
| Rated CapacityCAPwants kN/MN | not establishedUsing the 300 T pile load as a bearing capacity would be a wrong attribution (a neighbour's number), so the value is reported as not found. | not found | |
| Material TypeMAT | POT-PTFE bearing (pot bearing with PTFE sliding surface); bearing pedestal concrete M50 -Callout repeated on elevation and both sections: "POT-PTFE BEARING (TYP.)", marked FR (free) and FX (fixed). Note 5 concrete grade list gives "BEARING PEDESTAL ------ M50" for the supporting pedestal.The bearing type is stated outright on the drawings; no steel/elastomer specification is given beyond the pot-PTFE designation, and the M50 grade belongs strictly to the pedestal, quoted here only as the associated material. | read | p2 · p02_r02p2 · p02_r07 section through wall abutment with bored pilesp2 · pier_p1p2 · p02_r04 |
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 it4
- 200 mmBearing height thresholdp2 · p02_r04
- 200 mmMinimum bearing height thresholdp2 · p02_r05
- 400 mmDepth of bearing & pedestal considered for piercap top levelp2 · p02_r04 notes of general design notes and pile load table
- Bearing-height threshold = 200 mm mmMinimum bearing height referencedp2 · p02_r04 notes of general design notes and pile load table
Notes on the sheets that carry it
- p1C/L OF EXP. JOINT
- p1MEDIAN WALL PCC M15
- p1INDEPENDENT RETAINING WALL
- p1RET./ TOE WALL
- p130° SKEW
- p15000 (TYP.)
- p1New Construction
- p1RCC CRASH BARRIER
- p1(SCALE 1:300)
- p1PROPOSED CH.: 64+412
- p1STRUCTURE TYPE: MJBR
- p1PROPOSED SPAN: 2X40m
- p1SKEW: 30°
- p1PROPOSAL: New Construction
- p1℄ OF EXP. JOINT
- p1INDEPENDENT RET... (text cut off at right edge)
- p1MEDIA... PC... (text cut off at right edge)
- p2POT-PTFE BEARING (TYP.)
- p2RCC SEISMIC STOPPER
- p2STONE PITCHING
- 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.)
Every crop it was read in — the drawing beside what the model took off it
Page 1
p01_r01Plan
- Bearing / pedestal (small squares on deck-level plan at supports)×12square in planSmall hatched squares along the skewed support lines of both deck-level half plans; count approximate to what is visible
40000(SQ) 46189(SK) Span length (square) and along skew30° Skew angle1275 Edge offset dimension3500 Transverse spacing (typical, deck level upper plan)16550 Overall transverse width (deck level upper plan)1275 Edge offset dimensions (deck level lower plan)3500 Transverse spacing (deck level lower plan)16550 Overall transverse width (deck level lower plan)+14 more
p01_r02Plan
- Bearingsmall square in plannot statedSmall square symbols at girder ends along A1 and P1 lines on both carriageways; too small to count reliably.
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
p01_r01 key planPlan
- Bearing / bearing pedestalsmall square blocksSmall squares on hatched substructure lines in the deck-level half plan; count not reliable as the view is cut.
40000(SQ) 46189(SK) Span length (square) / (skew)30° Skew angle1275 Edge/offset dimension3500 Beam/bearing spacing (typical string)16550 Overall width1275 Offset dimension1275 Offset dimension3500 Beam/bearing spacing+18 more
p01_r02 half plan showing deck level foundation levelPlan
- Bearingsquare in plannot statedSmall squares at girder ends over abutment and pier lines of both decks
40000(SQ) 46189(SK) Span length (square / skew)40000(SQ) 46189(SK) Span length (square / skew)37761(SQ) 43603(SK) Clear/effective span (square / skew)1070(SQ) 1236(SK) Dimension from expansion joint to bearing line (square / skew)1170(SQ) 1350(SK) Dimension at pier (square / skew)5000 (TYP.) Cross girder / typical spacing3500 Girder spacing1275 Overhang / edge dimension+15 more
Page 2
p02_r07Section
- Pot-PTFE bearing×1rectangular in sectionnot statedlabelled '(TYP.)'
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
- Pot-PTFE bearingFR / FX×6'POT-PTFE BEARING (TYP.)'; marked FR (free) at abutments and one side of pier, FX (fixed) at pier
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
- Bearing400mm depth of bearing & pedestal assumed.
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
- Bearing400mm depth of bearing & pedestal assumed for piercap top level
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_r09Cross Section
- Pot-PTFE bearing×2rectangular in sectionlabelled TYP.; one under each girder line on pier cap
1170(SQ) Offset from centre line of pier to C/L of bearing (square)1350(SK) Offset from centre line of pier to C/L of bearing (skew)230 Deck slab thickness (left edge)230 Deck slab thickness (right edge)2650 Girder depth / superstructure depth (left)2650 Girder depth / superstructure depth (right)Pier shaft width (skew) = 1500(SK) — on RCC column pier Gap between girder ends at pier (skew)1500 Pier cap total depth+12 more
pier_p1Cross Section
- Pot-PTFE bearing×2rectangular in sectionpot bearing with PTFE sliding surfaceLabelled '(TYP.)', one under each girder line on pier cap
1170(SQ) Distance C/L of bearing to pier centreline (square)1350(SK) Distance C/L of bearing to pier centreline (skew)1170(SQ) Distance C/L of bearing to pier centreline (square)1350(SK) Distance C/L of bearing to pier centreline (skew)230 Deck slab thickness (left)230 Deck slab thickness (right)2650 Girder depth / superstructure depth below slab2650 Girder depth / superstructure depth below slab+15 more
p02_r02 elevation of bridge deck piers and abutments bridge at ch 64 412Elevation
- POT-PTFE bearingFR / FXMarked FR (free) at abutments and one side of pier, FX (fixed) at pier; four callouts 'POT-PTFE BEARING (TYP.)'
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
- Bearingnot drawn400mm depth of bearing & pedestal assumed for piercap top level
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
- Bearing · 400mm depth of brg. & pedestal considered; bearing height less than 200mm referenced400mm depth of brg. & pedestal assumed; minimum bearing height 200mm referenced
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
p02_r07 section through wall abutment with bored pilesSection
- Pot-PTFE bearing×1rectangular in sectionLabelled '(TYP.)'; shown on abutment bearing pedestal.
1070 (SQ.) — between C OF BRG. and C OF EXP. JOINT Distance from grid/centre of bearing (square)1236 (SK.) — between C OF BRG. and C OF EXP. JOINT Distance (skew)80(SQ.) 92(SK.) Expansion gap230 Deck slab thickness (top dimension)2650 Superstructure depth3500(SQ) Cantilever / dirt wall dimension1500 Dimension at girder web/diaphragm2850 Dimension from web to centre of bearing+9 more
p02_r09 section through column pier with pile cap and bored pilesSection
- Pot-PTFE bearing×2rectangular in sectionLabelled '(TYP.)', one under each bearing centreline
1170(SQ) Distance from pier centreline to bearing centreline (square)1350(SK) Distance from pier centreline to bearing centreline (skew)230 Deck slab thickness2650 Girder depth1500 (SK) Gap / expansion opening between girder ends (skew)1500 Pier cap total depth750 Pier cap upper layer depth750 Pier cap lower layer depth+10 more
p02_r10 section b bSection
- Pot-PTFE bearing×2rectangular in sectionnot statedLabelled '(TYP.)', one under each girder line
1170(SQ) Offset from centreline to C/L of bearing (square)1350(SK) Offset from centreline to C/L of bearing (skew)1170(SQ) Offset from centreline to C/L of bearing (square)1350(SK) Offset from centreline to C/L of bearing (skew)230 Deck slab thickness (left)230 Deck slab thickness (right)2650 Girder depth (left)2650 Girder depth (right)+14 more
Page 3
p03_r01Cross Section
- Bearing / pedestal block (hatched) · small rectangular hatched block · not stated · ×2 · Hatched blocks at the median-side soffit end of each deck; identity not labelled×4small rectangular hatched blocknot statedHatched blocks at outer soffit ends of each deck; identity not labelled — reading uncertain
80000 Total right of way width40000 Half ROW width (each side of road centreline)16550 Overall deck width (each carriageway)13500 Carriageway width1500 Footpath width450 Crash barrier / edge element widthDeck-edge horizontal dimension = 100 — on Deck edge (shown 4 times) Kerb / edge upstand thickness2900 Median gap between decks+28 more
p03_r01 cross section of deck and piles at abutment a1 a2Cross Section
- Bearing / pedestal block×4small rectangular hatched blocknot statedHatched blocks on abutment cap under outermost girder lines of each carriageway; annotation not printed
80000 Right of way width40000 Half right of way width (left)40000 Half right of way width (right)16550 Overall deck width per carriageway (LHS)16550 Overall deck width per carriageway (RHS)13500 Carriageway width13500 Carriageway width450 Crash barrier / edge dimension+34 more
p03_r02 cross section of deck and pile cap at pier p1Cross Section
- Bearingsmall rectangular padnot statedSmall pads shown between girders/deck and pier cap; individual count not reliably distinguishable
16550 Overall deck/cap width2900 Gap between decks at centre line450 Crash barrier / edge dimension13500 Carriageway width1500 Footpath width100 Kerb/footpath dimension50mm THK. (WC) — on wearing coat mm Wearing coat thickness2.5 % Deck cross slope+17 more