1、Standard Specification for Corrugated Steel Structural Plate, Zinc-Coated, for Field-Bolted Pipe, Pipe-Arches, and Arches AASHTO Designation: M 167M/M 167-14 ASTM Designation: A 761/A 761M-04 American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249
2、Washington, D.C. 20001TS-4b M 167M/M 167-1 AASHTO Standard Specification for Corrugated Steel Structural Plate, Zinc-Coated, for Field-Bolted Pipe, Pipe-Arches, and Arches AASHTO Designation: M 167M/M 167-14 ASTM Designation: A 761/A 761M-04 1. SCOPE 1.1. This specification covers corrugated steel s
3、tructural plate, zinc-coated, used in the construction of pipe, pipe-arches, arches, underpasses, and special shapes for field assembly. Appropriate fasteners and accessory materials are also described. The pipe, arches, and other shapes are generally used for drainage purposes, pedestrian and vehic
4、ular underpasses, and utility tunnels. 1.2. This specification does not include requirements for bedding, backfill, or the relationship between earth cover load and plate thickness of the pipe. Experience has shown that the successful performance of this product depends upon the proper selection of
5、plate thickness, type of bedding and backfill, manufacture in the plant, and care in the installation. The purchaser must correlate the above factors and also the corrosion and abrasion requirements of the field installation with the plate thickness. The structural design of corrugated steel structu
6、ral plate pipe and the proper installation procedures are described in AASHTO LRFD Bridge Design Specifications, Section 12 and AASHTO LRFD Bridge Construction Specifications, Section 26, respectively. 1.3. The values stated in either SI units or inch-pound units are to be regarded separately as sta
7、ndard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 2. REFERENCED DO
8、CUMENTS 2.1. AASHTO Standards: M 111M/M 111, Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products M 232M/M 232, Zinc Coating (Hot-Dip) on Iron and Steel Hardware T 65M/T 65, Mass Weight of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings T 244, Mechanical Testing of Steel
9、 Products AASHTO LRFD Bridge Design Specifications AASHTO LRFD Bridge Construction Specifications 2.2. ASTM Standards: A 36/A 36M, Standard Specification for Carbon Structural Steel A 307, Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 psi Tensile Strength 2014 by the
10、American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4b M 167M/M 167-2 AASHTO A 449, Standard Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Us
11、e A 563, Standard Specification for Carbon and Alloy Steel Nuts A 563M, Standard Specification for Carbon and Alloy Steel Nuts Metric A 751, Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products A 754/A 754M, Standard Test Method for Coating Weight (Mass) of Metal
12、lic Coatings on Steel by X-Ray Fluorescence A 780/A 780M, Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings B 6, Standard Specification for Zinc E 29, Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications E 37
13、6, Standard Practice for Measuring Coating Thickness by Magnetic-Field or Eddy-Current (Electromagnetic) Testing Methods F 568M, Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners (Withdrawn 2012) 2.3. American National Standards: B18.2.1, Square and Hex Bolts and
14、 Screws, Inch Series B18.2.2, Square and Hex Nuts B18.2.3.6M, Bolts, Metric Heavy Hex B18.2.4.6M, Hex Nuts, Heavy, Metric 3. DESCRIPTIONS OF TERMS SPECIFIC TO THIS STANDARD 3.1. archa partial circle shape spanning an open invert between the footings on which it rests. 3.2. box culverta rectangular b
15、ox with a long-radius crown and either short-radius corners or welded corners. It can be with full invert or with footings. 3.3. fabricatorthe producer of the components for the finished product. 3.4. flat platesheet or plate used to fabricate structural plate. 3.5. manufacturerthe producer of the f
16、lat plate and accessories. 3.6. pipea conduit having full circular shape; also, in a general context, all structural shapes covered by this specification. 3.7. pipe-archan arch shape with an approximate semicircular crown, small-radius corners, and large-radius invert. 3.8. pipe, horizontal ellipsea
17、n elliptically shaped pipe with the horizontal diameter approximately 25 percent greater than the nominal diameter. 3.9. pipe, vertically elongatedan elliptically shaped pipe with the vertical diameter up to 10 percent greater than the nominal diameter. 2014 by the American Association of State High
18、way and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4b M 167M/M 167-3 AASHTO 3.10. purchaserthe purchaser of the finished product. 3.11. special shapea shape, other than described elsewhere in this section, suitable for fabrication with structural pl
19、ate. 3.12. structural platea corrugated and curved plate that is field assembled with other structural plates to form the required structure. 3.13. vehicular underpassa high arch shape with an approximate semicircular crown, large-radius sides, small-radius corners between sides and invert, and larg
20、e-radius invert. 4. ORDERING INFORMATION 4.1. Orders for material under this specification shall include the following information, as necessary, to adequately describe the desired product: 4.1.1. Name of material (corrugated steel structural plate and accessories); 4.1.2. Description of structure (
21、Section 3); 4.1.3. Number of structures; 4.1.4. AASHTO designation and year of issue; 4.1.5. Dimensions of structure (diameter or span and rise, and length, etc.) (Section 8.2 and Note 7); 4.1.6. Thickness of plate (Section 8.1), and for the 150-by-50-mm 6-by-2-in. corrugation, the type of steel in
22、accordance with 5.1.3. and Table 2; 4.1.7. Description of corrugations (Section 6.2); 4.1.8. End treatment (bevel, skew, grade or slope corrections, or other special provision if required by the project plans or specifications); 4.1.9. Seam bolt size and number per corrugation, if different from the
23、 minimums indicated by Tables 3 and 5 (Section 6.3); 4.1.10. Special requirements (including reinforcement locations, shapes, and thicknesses), if required; and 4.1.11. Certification, if required (Section 12.1). Note 1A typical ordering description is as follows: (1) Structural plates and fasteners
24、for two corrugated steel plate pipe-arch, per M 167-_, 180-in. diameter, 0.168-in. plate thickness, 6-by-2-in. corrugations, 140-ft. nominal centerline length with square ends, longitudinal seams with four M20 bolts per corrugation. (2) Structural plates and fasteners for two corrugated steel plate
25、pipe-arch, per M 167M-_, 3860-mm span by 2460-mm rise, 5.54-mm plate thickness, 150-by-50-mm corrugations, 27.0-m nominal centerline length with square ends, longitudinal seams with four M20 bolts per corrugation. 2014 by the American Association of State Highway and Transportation Officials.All rig
26、hts reserved. Duplication is a violation of applicable law.TS-4b M 167M/M 167-4 AASHTO 5. MATERIALS 5.1. Flat Plate: 5.1.1. ManufactureThe base steel shall be made by any of the following processes: open-hearth, basic-oxygen, or electric-furnace. 5.1.2. Chemical CompositionThe base metal cast or hea
27、t (formerly ladle) analysis shall conform to the chemical requirements of Table 1. The requirements of this specification shall be met in continuous mass production during which the manufacturer has made analysis of individual heats to ensure that material is controlled within the specified limits.
28、5.1.3. Mechanical RequirementsThe mechanical properties of the flat plate material prior to corrugating shall conform to the requirements in Table 2. For the 150-by-50-mm 6-by-2-in. corrugation, either Type 33 or Type 38 must be specified. Note 2The properties enumerated in Table 2 for the flat plat
29、e normally provide the following minimum yield strengths after the plate is corrugated: 230 MPa 33 ksi for Type 33 material and 265 MPa 38 ksi for Type 38 material with 150-by-50-mm 6-by-2-in. corrugations; 300 MPa 44 ksi for 380-by-140-mm 15-by-5 in. and 400-by-150-mm 16-by-6 in. corrugations; and
30、290 MPa 42 ksi for 500-by-237-mm 20-by-9-in. corrugations. These yield strengths are used in the structural design of the pipe. Table 1Chemical Composition by Cast Analysis Corrugations, mm in. Composition, % Tolerance Over the Maximum Limit by Product Analysis, % 150 by 50 6 by 2 Sulfur, max 0.05 +
31、0.01 Sum of carbon, manganese, phosphorus, silicon, and sulfur, max 0.70 +0.04 380 by 140 15 by 51/2 400 by 150 16 by 6 and 500 by 237 20 by 91/2 Sulfur, max 0.04 +0.01 Sum of carbon, manganese, phosphorus, silicon, and sulfur, max 1.86 +0.13 Table 2Mechanical Requirements for Flat PlateaYield Point
32、,bMin, MPa ksi Tensile Strength,bMin, MPa, ksi Elongation in 50 mm 2 in.,cMin, % 150 by 50 6 by 2 Type 33 Type 38 190 28.0 225 33.0 290 42.0 310 45.0 25 25 380 by 140 15 by 51/2 400 by 150 16 by 6 and 500 by 237 20 by 91/2 275 40.0 380 55.0 25 aTo determine conformance with this specification, each
33、value for tensile strength and for yield point shall be rounded to the nearest 1 MPa 0.1 ksi and each value for elongation to the nearest 1 percent, both in accordance with the rounding-off method of ASTM E 29. bYield point and tensile strength are based on thickness of the base metal. If tests are
34、made after coating, determine the base metal thickness after stripping the coating from the ends of the specimen contacting the grips of the tension testing machine. cElongation requirement does not apply to material tested after corrugating. 5.2. Bearings for ArchesWhen specified, metal bearings fo
35、r arches may be cold-formed channels made from flat plate material conforming to Section 5.1, and not less than 4.78 mm 0.188 in. in specified thickness. 2014 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.T
36、S-4b M 167M/M 167-5 AASHTO 5.3. Members for Structural ReinforcementSteel members for circumferential or longitudinal stiffeners, or secondary structural components, shall be fabricated from rolled shapes conforming to A 36/A 36M, or from flat plate material conforming to Section 5.1. Note 3 Steel t
37、ransverse structural reinforcing members are used as part of some long-span and box-corrugated steel structural plate structures. The structural reinforcement for either of these types of structures can be designed using AASHTO LRFD Bridge Design Specifications. The structural design of long span st
38、ructures is given in AASHTO LRFD Bridge Design Specification, Section 12. 5.4. Assembly FastenersExcept as provided elsewhere in this section, bolts and nuts shall conform to the requirements specified in Table 3. The bearing surface of both bolts and nuts for use with 150-by-50-mm 6-by-2-in. and 40
39、0-by-150-mm 16-by-6-in. corrugations shall be shaped to a 25-mm 1-in. radius spherical surface. In lieu of bolts and nuts with the special bearing surface, standard type bolts and nuts with special washers providing comparable bearing surface may be used. Bolts and nuts for use with 380-by-140-mm 15
40、-by-51/2-in. and 500-by-237-mm 20-by-9-in. corrugations shall have either standard bearing surfaces or bearing surfaces shaped to a 25-mm 1-in. spherical radius. The number of bolts and nuts of each size and length furnished shall be 2 percent in excess of the theoretical number required to field er
41、ect the structure or structures. Bolt lengths shall be such as to result in at least “full nut” engagement when tightened in place. 5.5. Head Wall and Bearing AnchorageBolts and nuts for head wall anchorage and for anchoring arch bearings to foundations shall be fabricated as shown on the plans and
42、shall conform to the requirements specified in Table 3. Table 3Bolt and Nut Requirements BoltsaNuts General dimensionsbANSI B18.2.3.6M ANSI B18.2.4.6M Heavy Hex Heavy Hex Seam bolts and nutscF 568 Class 8.8 A 563 Class 12 Anchorage bolts and nuts F 568 Class 4.6 A 563 Class 5 Zinc coating M 232M/M 2
43、32 M 232M/M 232 Nominal diameter, min, metric sizedM 20 M 20 aBolts with special hemispherical base under the head are only available in inch sizes. They are also intended for use with metric plate. bSee Section 5.4 for permissible modifications to bearing surface. cBolts and nuts also used for conn
44、ecting arch plates to bearing and structural reinforcement to structural plates. dBolt size of M 22, M 24, or M 27 may be required with thicker plates, especially with 380-by-140-mm corrugation, and shall be furnished when specified in the order. 6. FABRICATION 6.1. Structural PlatesStructural plate
45、s shall be fabricated from flat sheets or plates, corrugated in accordance with Section 6.2, punched for bolted lap seams in accordance with Section 6.3, and curved to the required radius. 6.2. CorrugationsCorrugations shall form smooth continuous curves and tangents. Corrugations shall form annular
46、 rings (complete or partial) about the axis of the structure. The dimensions of the corrugations shall be in accordance with Table 4 for the size specified in the order. 2014 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of
47、applicable law.TS-4b M 167M/M 167-6 AASHTO Table 4Corrugation Requirements Nominal Size Maximum PitchaMinimum DepthbMinimum Inside Radius M 167M (mm) 150 by 50 158 48 25 380 by 140 394 133 68 400 by 150 500 by 237 413 515 144 225 74 78 M 167 (in.) 6 by 2 6.25 1.0 15 by 51/215.5 5.23 2.7 16 by 6 20 b
48、y 9 16.3 20.3 5.67 8.86 2.9 3.1 aPitch is measured from crest to crest of corrugation, at 90 degrees to the direction of the corrugations. bDepth is measured as the vertical distance from a straightedge resting on the corrugation crests parallel to the axis of the pipe to the bottom of the interveni
49、ng valley. 6.3. Bolt HolesThe bolt holes shall be punched so that all plates having like dimensions, curvature, and same size and number of bolts per meter foot of seam shall be interchangeable. Except as otherwise specified, the location and number of seam bolt holes shall conform to the requirements of Table 5 for the size of bolts indicated in Table 3 (Note 4). For 150-by-50-mm 6-by-2-in. corrugations, the diameter of
