2010 Construction and Material Specifications - Ohio Department of ...
2010 Construction and Material Specifications - Ohio Department of ... 2010 Construction and Material Specifications - Ohio Department of ...
515.18 BEAM SWEEP AND CAMBER TOLERANCES Description Box Beam I Beam Horizontal Sweep ±1/8” per 10 ft (1 mm/m) max ±1/8” per 10 ft (1 mm/m) max ±3/4” (19 mm) ±1” (25 mm) Max Gap between beam 1” (25 mm) N/A Camber – Deviation from Design camber (DC)* ±1/8” per 10 ft (1 mm/m) max ±1/2” (13 mm) Design plan camber at release (0 days)= Dcr Design plan camber at paving (30 days old) = Dcp Design plan long term camber (720 days old)= Dltc Formulas For DC [0 – 30 days] = [Dcp-Dcr]* [beam age/30] + Dcr For DC [> 30 days] = [Dltc –Dcp] * [(beam age -30)/690] + Dcp Variation in camber max 1/2” (13 mm) N/A between beams in same span 392 For member lengths 80 ft: ± 1/8” per 10 ft (1 mm/m) max ± 1/2” (13 mm) For member lengths > 80 ft: ± 1/8” per 10 ft (1 mm/m) max ± 1” (25 mm) 515.18 Prestressed Member Acceptance and repair. Throughout the fabrication process reject all prestressed members not meeting specification requirements. For all rejected members provide the Department with a complete description of the rejection, and unless waived by the Director, an Ohio registered professional engineer’s written evaluation of the criticalness of the rejection and the professional engineer’s proposed repair method that will repair the rejected member to an acceptable condition. The Department will determine the acceptability of the member and the repair procedure. If acceptable, the fabricator will only make repairs witnessed by the Department’s inspector unless waived by Director. Use the Precast/Prestress Concrete Institute’s Manual for the evaluation and repair of Precast, Prestressed Concrete Bridge Products MNL-137-06 as a general guide. 515.19 Handling Storage, Transportation, and Erection. Handle, store, transport, and erect the members in an upright position. The direction of support reactions during storage and transportation shall be the same as the member will experience in its in-service position. Do not ship prestressed members until the concrete obtains its 28-day design strength and the inspector’s approval. Provide at least 30 inches (762 mm) horizontally between each beam for inspection. Provide at least 8 inches (200 mm) of vertical clearance from the bottom. Use storage support locations as close as practical to the in-service
393 515.20 support locations. During storage, provide unyielding horizontal supports and bracing capable of maintaining the members in a vertical position. Transportation support locations shall be the sole responsibility of the fabricator with respect to member stresses and safe delivery to the job site If it is necessary to transport the members in a position other than vertical, obtain the Director’s written approval. Provide lifting devices capable of withstanding the required loads to lift and erect the members. During erection, accurately place the prestressed beams on their bearings to ensure a uniform load on all bearings. When shifting a member, lift the member up completely off of its bearings. Temporarily brace the first Ibeam erected to its substructure support units in the vertical position before releasing the beam from the crane. Tie each subsequent I- beam to the previously braced beam(s). Provide bracing after erection adequate to prevent sliding, tipping, or other movement that may result from high winds, creeping down the grade, or other causes, until placement of the diaphragms. Within any one day erect and brace at least 2 adjacent members in any one span before suspending operations for the day. Place box beams to ensure a correct fit of the keyways and to ensure proper grouting of the keyways. After placing the beams and installing tie devices, fill the longitudinal keyways using non shrink keyway grouts, 705.22, approved by OMM. Mix, install, and cure the grout according to the manufacturer’s published recommendations to obtain a design compressive strength of 5000 pounds per square inch (34.5 MPa). Do not allow vehicular load on an individual prestressed concrete box beam until the grout in the keyway obtains the specified design strength of 5000 pounds per square inch (34.5 MPa). If erection of prestressed members requires placing cranes or launching devices on previously erected spans, submit erection procedures for approval according to Item 501. At the Director’s discretion, repair or replace members damaged by improper handling, storage, transportation, or erection. 515.20 Safety Requirements. Provide effective safety measures to prevent injuries to personnel due to breakage of strands or failure of anchorage devices during the tensioning operations. Provide adequate protection and assure the OMM inspector can perform inspection of beams and manufacturing processes. The Department inspector will report any inadequate safety precautions to the plant QCS and to OMM if fabricator remedial action is not taken. OMM inspectors will follow safety rules established by the fabricator, at a minimum. Where fabricator safety rules interfere with the inspectors duties, the process should be altered to allow the inspections to be performed while maintaining the required level of safety. 515.21 Method of Measurement. The Department will measure Prestressed Concrete Bridge Members by the number of members.
- Page 347 and 348: 341 512.09 512.09 Method of Measure
- Page 349 and 350: 343 513.03 The Office of Materials
- Page 351 and 352: 345 513.05 513.05 Fabricator Docume
- Page 353 and 354: 347 513.12 before assembly. During
- Page 355 and 356: 349 513.18 for up to 5-inch (127 mm
- Page 357 and 358: TABLE 513.20-1M Bolt Size (mm) To d
- Page 359 and 360: TABLE 513.20-2M 353 513.20 Bolt Siz
- Page 361 and 362: 355 513.23 each workday, when weldi
- Page 363 and 364: 357 513.25 A. Radiographic Inspecti
- Page 365 and 366: 359 513.26 The fabrication quality
- Page 367 and 368: 361 513.30 The Department will not
- Page 369 and 370: 363 514.04 The quality control spec
- Page 371 and 372: 365 514.05 inspection identifies a
- Page 373 and 374: 367 514.07 continuously and uniform
- Page 375 and 376: 369 514.11 supporting 250 pounds (1
- Page 377 and 378: 371 514.13 1. For an automated blas
- Page 379 and 380: SW 846 Regulatory Concentration Ana
- Page 381 and 382: 375 514.17 Except for primer, mix p
- Page 383 and 384: 377 514.18 If mud cracking occurs,
- Page 385 and 386: 514.20 F. Measure other areas or re
- Page 387 and 388: 514.23 immediately before applying
- Page 389 and 390: Item Unit Description 514 Square Fo
- Page 391 and 392: 385 515.07 members, and all other i
- Page 393 and 394: 515.13 according to a method accept
- Page 395 and 396: 515.15 production. When using admix
- Page 397: 391 515.17 BEAM DIMENSIONAL TOLERAN
- Page 401 and 402: 395 516.04 516.03 Coating. Coat exp
- Page 403 and 404: 397 516.09 feet (meters) horizontal
- Page 405 and 406: Scuppers, structural steel and cast
- Page 407 and 408: 401 518.10 518.10 Basis of Payment.
- Page 409 and 410: 519.08 columns, the Department will
- Page 411 and 412: 405 520.05 and two times the weight
- Page 413 and 414: 407 520.11 520.11 Inspection and Te
- Page 415 and 416: Concrete footings will be paid for
- Page 417 and 418: 411 524.02 plan requirements, with
- Page 419 and 420: 413 524.05 groundwater must be cont
- Page 421 and 422: 415 524.08 Determine density, visco
- Page 423 and 424: 417 524.13 parts, do not allow thes
- Page 425 and 426: ITEM 526 APPROACH SLABS 526.01 Desc
- Page 427 and 428: 600 INCIDENTALS ITEM 601 SLOPE AND
- Page 429 and 430: 423 601.05 Stretchers are bags plac
- Page 431 and 432: 425 601.12 mm) wide at the surface;
- Page 433 and 434: 427 602.03 602.03 Construction Requ
- Page 435 and 436: Soil and granular embankment ......
- Page 437 and 438: paved invert ......................
- Page 439 and 440: Polyvinyl chloride sanitary pipe ..
- Page 441 and 442: 435 603.05 place with approval from
- Page 443 and 444: 437 603.08 cut end at an interior j
- Page 445 and 446: 439 603.09 c. If resilient and flex
- Page 447 and 448: 441 603.11 1. In a cut situation, p
515.18<br />
BEAM SWEEP AND CAMBER TOLERANCES<br />
Description Box Beam I Beam<br />
Horizontal Sweep ±1/8” per 10 ft (1 mm/m) max ±1/8” per 10 ft (1 mm/m) max<br />
±3/4” (19 mm)<br />
±1” (25 mm)<br />
Max Gap between beam 1” (25 mm)<br />
N/A<br />
Camber – Deviation from<br />
Design camber (DC)*<br />
±1/8” per 10 ft (1 mm/m) max<br />
±1/2” (13 mm)<br />
Design plan camber at release (0 days)= Dcr<br />
Design plan camber at paving (30 days old) = Dcp<br />
Design plan long term camber (720 days old)= Dltc<br />
Formulas<br />
For DC [0 – 30 days] = [Dcp-Dcr]* [beam age/30] + Dcr<br />
For DC [> 30 days] = [Dltc –Dcp] * [(beam age -30)/690] + Dcp<br />
Variation in camber max 1/2” (13 mm) N/A<br />
between beams in same<br />
span<br />
392<br />
For member lengths 80 ft: ±<br />
1/8” per 10 ft (1 mm/m) max ±<br />
1/2” (13 mm)<br />
For member lengths > 80 ft: ±<br />
1/8” per 10 ft (1 mm/m) max ±<br />
1” (25 mm)<br />
515.18 Prestressed Member Acceptance <strong>and</strong> repair. Throughout the<br />
fabrication process reject all prestressed members not meeting specification<br />
requirements.<br />
For all rejected members provide the <strong>Department</strong> with a complete description <strong>of</strong><br />
the rejection, <strong>and</strong> unless waived by the Director, an <strong>Ohio</strong> registered pr<strong>of</strong>essional<br />
engineer’s written evaluation <strong>of</strong> the criticalness <strong>of</strong> the rejection <strong>and</strong> the<br />
pr<strong>of</strong>essional engineer’s proposed repair method that will repair the rejected<br />
member to an acceptable condition. The <strong>Department</strong> will determine the<br />
acceptability <strong>of</strong> the member <strong>and</strong> the repair procedure. If acceptable, the fabricator<br />
will only make repairs witnessed by the <strong>Department</strong>’s inspector unless waived by<br />
Director.<br />
Use the Precast/Prestress Concrete Institute’s Manual for the evaluation <strong>and</strong><br />
repair <strong>of</strong> Precast, Prestressed Concrete Bridge Products MNL-137-06 as a general<br />
guide.<br />
515.19 H<strong>and</strong>ling Storage, Transportation, <strong>and</strong> Erection.<br />
H<strong>and</strong>le, store, transport, <strong>and</strong> erect the members in an upright position. The<br />
direction <strong>of</strong> support reactions during storage <strong>and</strong> transportation shall be the same<br />
as the member will experience in its in-service position. Do not ship prestressed<br />
members until the concrete obtains its 28-day design strength <strong>and</strong> the inspector’s<br />
approval.<br />
Provide at least 30 inches (762 mm) horizontally between each beam for<br />
inspection. Provide at least 8 inches (200 mm) <strong>of</strong> vertical clearance from the<br />
bottom. Use storage support locations as close as practical to the in-service