Drawing to BOQpipeline control sheet
← Mindmapwhat the drawings said

Diaphragm Bar

2 pages · 6 crops · ×4 · superstructure

⚠ No class in the bridge ontology fits this itemAdd a class

The ontology would need a diaphragm-bar connection class.

How the sheets named it

☉

Every dimension read for it4

  • 1 inDiaphragm bar diameterp10 · p10_r04 tighten diaphragm bar as per sub section
  • 1 indiaphragm bar diameterp10 · p10_r04
  • 1 inDiaphragm bar diameterp11 · p11_r03 recess detail for diaphragm bar ends
  • 1 inDiaphragm bar diameterp11 · p11_r03

Notes on the sheets that carry it

  • p10☉ DIAPHRAGM BAR SHALL BE A 1" DIAMETER PLAIN BAR, THREADED 5" ON EACH END, WITH 1/4" X 3 1/2" DIAMETER WASHERS AND HEX NUTS (ASTM A 709 GRADE 36).
  • p10TIGHTEN DIAPHRAGM BAR AS PER SUB-SECTION 507.3.05.C OF THE GEORGIA DOT SPECIFICATIONS.
  • p10AFTER EXCESS DIAPHRAGM BAR HAS BEEN CUT OFF, PAINT DIAPHRAGM BAR, WASHER, AND NUT EXPOSED IN RECESS WITH SPECIAL PROTECTIVE COATING NO. 2 P AS PER SECTION 535 OF THE GEORGIA DOT SPECIFICATIONS. AFTER PAINTING, FILL THE RECESS WITH AN APPROVED EPOXY GROUT.
  • p10GALVANIZING OF THE DIAPHRAGM BAR AS PER SUB-SECTION 865.2.01.B.12 OF THE GEORGIA DOT SPECIFICATIONS IS NOT REQUIRED.
  • p10CUT OFF EXCESS DIAPHRAGM BAR 1" FROM BEAM FACE.
  • p10RECESS WITH AN APPROVED EPOXY GROUT.
  • p10THE GEORGIA DOT SPECIFICATIONS. AFTER PAINTING, FILL THE RECESS WITH AN APPROVED EPOXY GROUT.

Every crop it was read in — the drawing beside what the model took off it

Page 10

crop

p10_r04 tighten diaphragm bar as per sub section

page 10 · gdot_plan_649084f395824aaebf1f5ed48132696f_p10_r04_tighten_diaphragm_bar_as_per_sub_section
Original
p10_r04 tighten diaphragm bar as per sub section
{
  "view": "Detail",
  "objects": [
    {
      "name": "Diaphragm bar",
      "tag": "☉",
      "shape": "circular (bar)",
      "material": "structural steel (ASTM A709 Grade 36)",
      "count": 1,
      "note": "1\" diameter plain bar, threaded 5\" on each end, shown passing through beam with washer and hex nut, recessed and cut off"
    },
    {
      "name": "Beam / diaphragm concrete section",
      "tag": "",
      "shape": "rectangular",
      "material": "reinforced concrete",
      "count": 2,
      "note": "two concrete faces shown with a break line, representing beam webs at diaphragm location"
    },
    {
      "name": "Reinforcement bars",
      "tag": "351",
      "shape": "straight bars",
      "material": "reinforcing steel",
      "count": 4,
      "note": "4-#351 bars at 4\" each way, shown as small circular dots in section"
    },
    {
      "name": "Washer",
      "tag": "",
      "shape": "circular",
      "material": "steel",
      "count": 2,
      "note": "1/4\" x 3 1/2\" diameter washers at each threaded end of diaphragm bar"
    },
    {
      "name": "Hex nut",
      "tag": "",
      "shape": "hexagonal",
      "material": "steel",
      "count": 2,
      "note": "hex nuts at each threaded end of diaphragm bar"
    }
  ],
  "measurements": [
    {
      "label": "Clear distance",
      "value": "1",
      "unit": "in",
      "appliesTo": "beam face to diaphragm bar hole"
    },
    {
      "label": "Width",
      "value": "3",
      "unit": "in",
      "appliesTo": "recess/pocket dimension"
    },
    {
      "label": "Hole diameter",
      "value": "2",
      "unit": "in",
      "appliesTo": "hole for diaphragm bar"
    },
    {
      "label": "Diameter",
      "value": "5",
      "unit": "in",
      "appliesTo": "recess/pocket for washer and nut"
    },
    {
      "label": "Reinforcement spacing/count",
      "value": "4-351 AT 4\"",
      "unit": "in",
      "appliesTo": "reinforcement bars 351"
    },
    {
      "label": "Diaphragm bar diameter",
      "value": "1",
      "unit": "in",
      "appliesTo": "diaphragm bar (☉)"
    },
    {
      "label": "Threaded length",
      "value": "5",
      "unit": "in",
      "appliesTo": "diaphragm bar ends"
    },
    {
      "label": "Washer thickness x diameter",
      "value": "1/4 x 3 1/2",
      "unit": "in",
      "appliesTo": "washer on diaphragm bar"
    },
    {
      "label": "Cut off distance from beam face",
      "value": "1",
      "unit": "in",
      "appliesTo": "excess diaphragm bar"
    }
  ],
  "notes": [
    "☉ DIAPHRAGM BAR SHALL BE A 1\" DIAMETER PLAIN BAR, THREADED 5\" ON EACH END, WITH 1/4\" X 3 1/2\" DIAMETER WASHERS AND HEX NUTS (ASTM A 709 GRADE 36).",
    "TIGHTEN DIAPHRAGM BAR AS PER SUB-SECTION 507.3.05.C OF THE GEORGIA DOT SPECIFICATIONS.",
    "AFTER EXCESS DIAPHRAGM BAR HAS BEEN CUT OFF, PAINT DIAPHRAGM BAR, WASHER, AND NUT EXPOSED IN RECESS WITH SPECIAL PROTECTIVE COATING NO. 2 P AS PER SECTION 535 OF THE GEORGIA DOT SPECIFICATIONS. AFTER PAINTING, FILL THE RECESS WITH AN APPROVED EPOXY GROUT.",
    "GALVANIZING OF THE DIAPHRAGM BAR AS PER SUB-SECTION 865.2.01.B.12 OF THE GEORGIA DOT SPECIFICATIONS IS NOT REQUIRED.",
    "CUT OFF EXCESS DIAPHRAGM BAR 1\" FROM BEAM FACE."
  ],
  "labels": [
    "2\" DIAMETER HOLE",
    "4-351 AT 4\" EACH WAY",
    "1\" CL.",
    "3\"",
    "5\" DIA."
  ],
  "description": "This crop shows a detail of a diaphragm bar connection at a beam/diaphragm joint, including a threaded steel bar passing through a 2-inch diameter hole, secured with washers and hex nuts, and recessed 1 inch from the beam face. Accompanying notes specify the bar material, tightening procedure, painting/grouting requirements, and a note that galvanizing is not required per Georgia DOT specifications. Reinforcement bars (351) are shown embedded at 4-inch spacing each way around the bar location."
}

p10_r04 tighten diaphragm bar as per sub sectionDetail

  • Diaphragm bar☉×1circular (bar)structural steel (ASTM A709 Grade 36)1" diameter plain bar, threaded 5" on each end, shown passing through beam with washer and hex nut, recessed and cut off

1 in Clear distance3 in Width2 in Hole diameter5 in Diameter4-351 AT 4" in Reinforcement spacing/count1 in Diaphragm bar diameter5 in Threaded length1/4 x 3 1/2 in Washer thickness x diameter+1 more

crop

p10_r07 notes

page 10 · gdot_plan_649084f395824aaebf1f5ed48132696f_p10_r07_notes
Original
p10_r07 notes
{
  "view": "Notes",
  "objects": [
    {
      "name": "Diaphragm bar",
      "tag": "",
      "shape": "",
      "material": "steel",
      "count": null,
      "note": "Referenced in notes; recess at bar ends filled with epoxy grout, no galvanizing required"
    }
  ],
  "measurements": [],
  "notes": [
    "RECESS WITH AN APPROVED EPOXY GROUT.",
    "GALVANIZING OF THE DIAPHRAGM BAR AS PER SUB-SECTION 865.2.01.B.12 OF THE GEORGIA DOT SPECIFICATIONS IS NOT REQUIRED."
  ],
  "labels": [
    "RECESS DETAIL FOR DIAPHRAGM BAR ENDS"
  ],
  "description": "This crop shows a text note block titled 'RECESS DETAIL FOR DIAPHRAGM BAR ENDS', specifying that recesses at diaphragm bar ends are to be filled with approved epoxy grout, and clarifying that galvanizing per Georgia DOT sub-section 865.2.01.B.12 is not required for the diaphragm bar. No graphical detail or dimensions are included in this crop, only the associated notes and title."
}

p10_r07 notesNotes

  • Diaphragm barsteelReferenced in notes; recess at bar ends filled with epoxy grout, no galvanizing required
crop

p10_r04

page 10 · other_p10_r04
Original
p10_r04
{
  "view": "Detail",
  "objects": [
    {
      "name": "diaphragm bar",
      "tag": "",
      "shape": "circular (threaded rod)",
      "material": "steel (ASTM A709 Grade 36)",
      "count": 1,
      "note": "1\" diameter plain bar, threaded 5\" on each end, passes through 2\" diameter hole in beam"
    },
    {
      "name": "washer",
      "tag": "",
      "shape": "circular",
      "material": "steel",
      "count": 2,
      "note": "1/4\" x 3 1/2\" diameter washers at diaphragm bar ends"
    },
    {
      "name": "hex nut",
      "tag": "",
      "shape": "hexagonal",
      "material": "steel",
      "count": 2,
      "note": "secures diaphragm bar ends"
    },
    {
      "name": "beam/diaphragm reinforcement bar",
      "tag": "351",
      "shape": "rebar",
      "material": "reinforced concrete",
      "count": 4,
      "note": "4-351 bars at 4\" each way around hole"
    },
    {
      "name": "beam web/end block",
      "tag": "",
      "shape": "rectangular",
      "material": "precast concrete",
      "count": 1,
      "note": "shown in section with recess for diaphragm bar hardware"
    }
  ],
  "measurements": [
    {
      "label": "clearance",
      "value": "1",
      "unit": "in",
      "appliesTo": "beam face to hole edge"
    },
    {
      "label": "recess width",
      "value": "3",
      "unit": "in",
      "appliesTo": "recess for diaphragm bar hardware"
    },
    {
      "label": "hole diameter",
      "value": "2",
      "unit": "in",
      "appliesTo": "diaphragm bar hole"
    },
    {
      "label": "recess diameter",
      "value": "5",
      "unit": "in",
      "appliesTo": "recess for washer/nut"
    },
    {
      "label": "cutoff distance",
      "value": "1",
      "unit": "in",
      "appliesTo": "excess diaphragm bar cutoff from beam face"
    },
    {
      "label": "reinforcement spacing",
      "value": "4",
      "unit": "in",
      "appliesTo": "351 bars each way"
    },
    {
      "label": "bar count",
      "value": "4",
      "unit": "",
      "appliesTo": "351 bars"
    },
    {
      "label": "diaphragm bar diameter",
      "value": "1",
      "unit": "in",
      "appliesTo": "diaphragm bar"
    },
    {
      "label": "thread length",
      "value": "5",
      "unit": "in",
      "appliesTo": "diaphragm bar ends"
    },
    {
      "label": "washer size",
      "value": "1/4\" x 3 1/2\"",
      "unit": "in",
      "appliesTo": "washer diameter/thickness"
    }
  ],
  "notes": [
    "DIAPHRAGM BAR SHALL BE A 1\" DIAMETER PLAIN BAR, THREADED 5\" ON EACH END, WITH 1/4\" X 3 1/2\" DIAMETER WASHERS AND HEX NUTS (ASTM A 709 GRADE 36).",
    "TIGHTEN DIAPHRAGM BAR AS PER SUB-SECTION 507.3.05.C OF THE GEORGIA DOT SPECIFICATIONS.",
    "AFTER EXCESS DIAPHRAGM BAR HAS BEEN CUT OFF, PAINT DIAPHRAGM BAR, WASHER, AND NUT EXPOSED IN RECESS WITH SPECIAL PROTECTIVE COATING NO. 2 P AS PER SECTION 535 OF THE GEORGIA DOT SPECIFICATIONS. AFTER PAINTING, FILL THE RECESS WITH AN APPROVED EPOXY GROUT.",
    "GALVANIZING OF THE DIAPHRAGM BAR AS PER SUB-SECTION 865.2.01.B.12 OF THE GEORGIA DOT SPECIFICATIONS IS NOT REQUIRED.",
    "CUT OFF EXCESS DIAPHRAGM BAR 1\" FROM BEAM FACE."
  ],
  "labels": [
    "2\" DIAMETER HOLE",
    "4-351 AT 4\" EACH WAY",
    "1\" CL.",
    "3\"",
    "5\" DIA."
  ],
  "description": "This crop is a detail drawing of a diaphragm bar connection at a precast beam end, showing the bar's hole placement, threaded ends, washers, nuts, and recess dimensions, along with reinforcement bars (351) around the hole. Accompanying notes specify the diaphragm bar material and hardware specification, tightening procedure per Georgia DOT spec, post-installation coating and grouting requirements, and clarify that galvanizing is not required."
}

p10_r04Detail

  • diaphragm bar×1circular (threaded rod)steel (ASTM A709 Grade 36)1" diameter plain bar, threaded 5" on each end, passes through 2" diameter hole in beam

1 in clearance3 in recess width2 in hole diameter5 in recess diameter1 in cutoff distance4 in reinforcement spacing4 bar count1 in diaphragm bar diameter+2 more

crop

p10_r07

page 10 · other_p10_r07
Original
p10_r07
{
  "view": "Notes",
  "objects": [
    {
      "name": "diaphragm bar",
      "tag": "",
      "shape": "",
      "material": "steel",
      "count": null,
      "note": "referenced in note text regarding recess ends and galvanizing requirement; not depicted graphically in this crop"
    }
  ],
  "measurements": [],
  "notes": [
    "THE GEORGIA DOT SPECIFICATIONS. AFTER PAINTING, FILL THE RECESS WITH AN APPROVED EPOXY GROUT.",
    "GALVANIZING OF THE DIAPHRAGM BAR AS PER SUB-SECTION 865.2.01.B.12 OF THE GEORGIA DOT SPECIFICATIONS IS NOT REQUIRED."
  ],
  "labels": [
    "RECESS DETAIL FOR DIAPHRAGM BAR ENDS"
  ],
  "description": "This crop contains only text notes and a title, with no accompanying graphic in view. It specifies finishing requirements for a recess at diaphragm bar ends—filling with approved epoxy grout after painting—and states that galvanizing per a specific Georgia DOT specification sub-section is not required. The title 'RECESS DETAIL FOR DIAPHRAGM BAR ENDS' indicates this note block accompanies a detail drawing not included in this particular crop."
}

p10_r07Notes

  • diaphragm barsteelreferenced in note text regarding recess ends and galvanizing requirement; not depicted graphically in this crop

Page 11

crop

p11_r03 recess detail for diaphragm bar ends

page 11 · gdot_plan_649084f395824aaebf1f5ed48132696f_p11_r03_recess_detail_for_diaphragm_bar_ends
Original
p11_r03 recess detail for diaphragm bar ends
{
  "view": "Detail",
  "objects": [
    {
      "name": "Diaphragm bar",
      "tag": "",
      "shape": "circular (round bar, threaded ends)",
      "material": "steel, ASTM A709 Grade 36",
      "count": 1,
      "note": "1\" diameter plain bar, threaded 5\" on each end, shown passing through beam web with washer and hex nut in recess"
    },
    {
      "name": "Recess (pocket for diaphragm bar end)",
      "tag": "",
      "shape": "circular",
      "material": "concrete (beam), later filled with epoxy grout",
      "count": 1,
      "note": "5\" diameter recess at beam face housing washer/nut"
    },
    {
      "name": "2\" diameter hole",
      "tag": "",
      "shape": "circular",
      "material": "",
      "count": 1,
      "note": "hole through beam web for diaphragm bar"
    },
    {
      "name": "Reinforcement bar",
      "tag": "351",
      "shape": "straight bar",
      "material": "reinforcing steel",
      "count": 4,
      "note": "4-351 bars at 4\" each way, shown near hole location"
    },
    {
      "name": "Washer",
      "tag": "",
      "shape": "circular, 3-1/2\" diameter",
      "material": "steel",
      "count": 1,
      "note": "1/4\" thick washer on threaded bar end"
    },
    {
      "name": "Hex nut",
      "tag": "",
      "shape": "hexagonal",
      "material": "steel",
      "count": 1,
      "note": "nut on threaded diaphragm bar end within recess"
    },
    {
      "name": "Beam (PSC beam, partial)",
      "tag": "",
      "shape": "rectangular section (partial, web shown)",
      "material": "precast concrete",
      "count": 1,
      "note": "only the web/end portion near diaphragm connection is shown"
    }
  ],
  "measurements": [
    {
      "label": "Clear distance",
      "value": "1",
      "unit": "in (CL.)",
      "appliesTo": "beam web to hole"
    },
    {
      "label": "Width dimension",
      "value": "3",
      "unit": "in",
      "appliesTo": "recess width at beam face"
    },
    {
      "label": "Hole diameter",
      "value": "2",
      "unit": "in",
      "appliesTo": "hole through beam web"
    },
    {
      "label": "Recess diameter",
      "value": "5",
      "unit": "in (DIA.)",
      "appliesTo": "recess for diaphragm bar end"
    },
    {
      "label": "Bar spacing",
      "value": "4",
      "unit": "in",
      "appliesTo": "351 reinforcement bars, each way"
    },
    {
      "label": "Bar count",
      "value": "4",
      "unit": "",
      "appliesTo": "351 reinforcement bars"
    },
    {
      "label": "Diaphragm bar diameter",
      "value": "1",
      "unit": "in",
      "appliesTo": "diaphragm bar"
    },
    {
      "label": "Threaded length",
      "value": "5",
      "unit": "in",
      "appliesTo": "diaphragm bar end thread"
    },
    {
      "label": "Washer thickness",
      "value": "1/4",
      "unit": "in",
      "appliesTo": "washer"
    },
    {
      "label": "Washer diameter",
      "value": "3 1/2",
      "unit": "in",
      "appliesTo": "washer"
    },
    {
      "label": "Cut-off distance",
      "value": "1",
      "unit": "in",
      "appliesTo": "excess diaphragm bar from beam face"
    }
  ],
  "notes": [
    "DIAPHRAGM BAR SHALL BE A 1\" DIAMETER PLAIN BAR, THREADED 5\" ON EACH END, WITH 1/4\" X 3 1/2\" DIAMETER WASHERS AND HEX NUTS (ASTM A 709 GRADE 36).",
    "TIGHTEN DIAPHRAGM BAR AS PER SUB-SECTION 507.3.05.C OF THE GEORGIA DOT SPECIFICATIONS.",
    "AFTER EXCESS DIAPHRAGM BAR HAS BEEN CUT OFF, PAINT DIAPHRAGM BAR, WASHER, AND NUT EXPOSED IN RECESS WITH SPECIAL PROTECTIVE COATING NO. 2 P AS PER SECTION 535 OF THE GEORGIA DOT SPECIFICATIONS. AFTER PAINTING, FILL THE RECESS WITH AN APPROVED EPOXY GROUT.",
    "GALVANIZING OF THE DIAPHRAGM BAR AS PER SUB-SECTION 865.2.01.B.12 OF THE GEORGIA DOT SPECIFICATIONS IS NOT REQUIRED.",
    "CUT OFF EXCESS DIAPHRAGM BAR 1\" FROM BEAM FACE."
  ],
  "labels": [
    "RECESS DETAIL FOR DIAPHRAGM BAR ENDS",
    "1\" CL.",
    "3\"",
    "2\" DIAMETER HOLE",
    "4-351 AT 4\" EACH WAY",
    "5\" DIA."
  ],
  "description": "This crop is a detail drawing showing the recess at a precast concrete beam end where a diaphragm tie bar passes through, including the hole, washer, nut, and grout-filled recess, along with accompanying construction notes specifying bar material, tightening procedure, painting, and galvanizing requirements per Georgia DOT specifications. It documents the diaphragm bar connection detail rather than the full beam or diaphragm assembly."
}

p11_r03 recess detail for diaphragm bar endsDetail

  • Diaphragm bar×1circular (round bar, threaded ends)steel, ASTM A709 Grade 361" diameter plain bar, threaded 5" on each end, shown passing through beam web with washer and hex nut in recess

1 in (CL.) Clear distance3 in Width dimension2 in Hole diameter5 in (DIA.) Recess diameter4 in Bar spacing4 Bar count1 in Diaphragm bar diameter5 in Threaded length+3 more

crop

p11_r03

page 11 · other_p11_r03
Original
p11_r03
{
  "view": "Detail",
  "objects": [
    {
      "name": "Diaphragm bar",
      "tag": "",
      "shape": "circular (round bar, threaded ends)",
      "material": "steel (ASTM A 709 Grade 36)",
      "count": 1,
      "note": "1\" diameter plain bar, threaded 5\" on each end; shown in recess at beam face"
    },
    {
      "name": "Recess hole",
      "tag": "",
      "shape": "circular",
      "material": "",
      "count": 1,
      "note": "2\" diameter hole through beam for diaphragm bar"
    },
    {
      "name": "Washer",
      "tag": "",
      "shape": "circular (annular)",
      "material": "steel",
      "count": 1,
      "note": "1/4\" x 3-1/2\" diameter washer at bar end"
    },
    {
      "name": "Hex nut",
      "tag": "",
      "shape": "hexagonal",
      "material": "steel",
      "count": 1,
      "note": "hex nut on threaded end of diaphragm bar"
    },
    {
      "name": "Reinforcement bar group (4-3S1)",
      "tag": "3S1",
      "shape": "bar (rebar)",
      "material": "reinforced concrete reinforcement (steel)",
      "count": 4,
      "note": "4 bars marked 3S1 spaced at 4\" each way near recess"
    },
    {
      "name": "Beam face / recess pocket",
      "tag": "",
      "shape": "rectangular recess in beam end",
      "material": "precast concrete",
      "count": 1,
      "note": "recess formed at beam face to accommodate diaphragm bar end, washer, nut; later filled with epoxy grout"
    }
  ],
  "measurements": [
    {
      "label": "Clear cover to hole",
      "value": "1",
      "unit": "in",
      "appliesTo": "2\" diameter hole"
    },
    {
      "label": "Recess width",
      "value": "3",
      "unit": "in",
      "appliesTo": "recess pocket at beam face"
    },
    {
      "label": "Hole diameter",
      "value": "2",
      "unit": "in",
      "appliesTo": "hole for diaphragm bar"
    },
    {
      "label": "Bar spacing group",
      "value": "4-3S1 AT 4\"",
      "unit": "in",
      "appliesTo": "3S1 reinforcement bars"
    },
    {
      "label": "Washer/nut recess diameter",
      "value": "5",
      "unit": "in",
      "appliesTo": "recess diameter (DIA.) around washer/nut"
    },
    {
      "label": "Diaphragm bar diameter",
      "value": "1",
      "unit": "in",
      "appliesTo": "diaphragm bar"
    },
    {
      "label": "Thread length each end",
      "value": "5",
      "unit": "in",
      "appliesTo": "diaphragm bar ends"
    },
    {
      "label": "Washer thickness",
      "value": "1/4",
      "unit": "in",
      "appliesTo": "washer"
    },
    {
      "label": "Washer diameter",
      "value": "3 1/2",
      "unit": "in",
      "appliesTo": "washer"
    },
    {
      "label": "Cut-off distance from beam face",
      "value": "1",
      "unit": "in",
      "appliesTo": "excess diaphragm bar cut-off"
    }
  ],
  "notes": [
    "DIAPHRAGM BAR SHALL BE A 1\" DIAMETER PLAIN BAR, THREADED 5\" ON EACH END, WITH 1/4\" X 3 1/2\" DIAMETER WASHERS AND HEX NUTS (ASTM A 709 GRADE 36).",
    "TIGHTEN DIAPHRAGM BAR AS PER SUB-SECTION 507.3.05.C OF THE GEORGIA DOT SPECIFICATIONS.",
    "AFTER EXCESS DIAPHRAGM BAR HAS BEEN CUT OFF, PAINT DIAPHRAGM BAR, WASHER, AND NUT EXPOSED IN RECESS WITH SPECIAL PROTECTIVE COATING NO. 2 P AS PER SECTION 535 OF THE GEORGIA DOT SPECIFICATIONS. AFTER PAINTING, FILL THE RECESS WITH AN APPROVED EPOXY GROUT.",
    "GALVANIZING OF THE DIAPHRAGM BAR AS PER SUB-SECTION 865.2.01.B.12 OF THE GEORGIA DOT SPECIFICATIONS IS NOT REQUIRED.",
    "CUT OFF EXCESS DIAPHRAGM BAR 1\" FROM BEAM FACE."
  ],
  "labels": [
    "RECESS DETAIL FOR DIAPHRAGM BAR ENDS",
    "2\" DIAMETER HOLE",
    "4-3S1 AT 4\" EACH WAY",
    "1\" CL.",
    "3\"",
    "5\" DIA."
  ],
  "description": "This crop is a construction detail showing the recess formed at a precast beam end where a diaphragm bar terminates, including the 2\" diameter through-hole, 1\" cover dimension, 3\" recess width, and a 5\" diameter recess for the washer/nut assembly. Accompanying notes specify the diaphragm bar material and dimensions (1\" diameter plain steel bar, ASTM A 709 Grade 36, threaded 5\" each end), tightening reference, post-installation coating and epoxy grout fill requirements, and that galvanizing is not required. It documents the diaphragm bar end connection detail for precast beam diaphragms, not the overall beam or diaphragm layout."
}

p11_r03Detail

  • Diaphragm bar×1circular (round bar, threaded ends)steel (ASTM A 709 Grade 36)1" diameter plain bar, threaded 5" on each end; shown in recess at beam face

1 in Clear cover to hole3 in Recess width2 in Hole diameter4-3S1 AT 4" in Bar spacing group5 in Washer/nut recess diameter1 in Diaphragm bar diameter5 in Thread length each end1/4 in Washer thickness+2 more