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A0796_A0796M-06雨水管和卫生污水管及其它地下埋设管道用波纹钢管、管托架及拱形架结构设计惯例.pdf
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1、Designation:A 796/A 796M 06Standard Practice forStructural Design of Corrugated Steel Pipe,Pipe-Arches,and Arches for Storm and Sanitary Sewers and OtherBuried Applications1This standard is issued under the fixed designationA 796/A 796M;the number immediately following the designation indicates the
2、yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This practice covers the structural design of corrugated
3、steel pipe and pipe-arches,ribbed and composite ribbed steelpipe,ribbed pipe with metallic-coated inserts,closed rib steelpipe,composite corrugated steel pipe,and steel structural platepipe,pipe-arches,and underpasses for use as storm sewers andsanitary sewers,and other buried applications.Ribbed an
4、dcomposite ribbed steel pipe,ribbed pipe with metallic-coatedinserts,closed rib steel pipe,and composite corrugated steelpipe shall be of helical fabrication having a continuouslockseam.This practice is for pipe installed in a trench orembankment and subjected to earth loads and live loads.Itmust be
5、 recognized that a buried corrugated steel pipe is acomposite structure made up of the steel ring and the soilenvelope,and both elements play a vital part in the structuraldesign of this type of structure.This practice applies tostructures installed in accordance with Practice A 798/A 798Mor A 807/A
6、 807M.1.2 Corrugated steel pipe and pipe-arches shall be of annu-lar fabrication using riveted or spot-welded seams,or of helicalfabrication having a continuous lockseam or welded seam.1.3 Structural plate pipe,pipe-arches,underpasses,andarches are fabricated in separate plates that,when assembled a
7、tthe job site by bolting,form the required shape.1.4 This specification is applicable to design in inch-poundunits as A 796 or in SI units as A 796M.Inch-pound units andSI units are not necessarily equivalent.SI units are shown inbrackets in the text for clarity,but they are the applicablevalues whe
8、n the design is done per A 796M.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations
9、 prior to use.2.Referenced Documents2.1 ASTM Standards:2A 760/A 760M Specification for Corrugated Steel Pipe,Metallic-Coated for Sewers and DrainsA 761/A 761M Specification for Corrugated Steel Struc-tural Plate,Zinc-Coated,for Field-Bolted Pipe,Pipe-Arches,and ArchesA 762/A 762M Specification for C
10、orrugated Steel Pipe,Polymer Precoated for Sewers and DrainsA 798/A 798M Practice for Installing Factory-Made Corru-gated Steel Pipe for Sewers and Other ApplicationsA 807/A 807M Practice for Installing Corrugated SteelStructural Plate Pipe for Sewers and Other ApplicationsA 902 Terminology Relating
11、 to Metallic-Coated Steel Prod-uctsA 978/A 978M Specification for Composite Ribbed SteelPipe,Precoated and Polyethylene-Lined for Gravity FlowSanitary Sewers,Storm Sewers,and Other Special Appli-cationsA 1019/A 1019M Specification for Closed Rib Steel Pipewith a Diameter of 36 in.900 mm or Less,Poly
12、merPrecoated for Sewers and DrainsA 1042/A 1042M Specification for Composite CorrugatedSteel Pipe for Sewer and DrainsD 698 Test Method for Laboratory Compaction Character-istics of Soil Using Standard Effort(12 400 ft-lbf/ft3600kNm/m3)D 1556 Test Method for Density and Unit Weight of Soil inPlace b
13、y the Sand-Cone MethodD 2167 Test Method for Density and Unit Weight of Soil inPlace by the Rubber Balloon MethodD 2487 Classification of Soils for Engineering Purposes(Unified Soil Classification System)D 2922 Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods(Shallow D
14、epth)1This practice is under the jurisdiction of ASTM Committee A05 on Metallic-Coated Iron and Steel Products and is the direct responsibility of SubcommitteeA05.17 on Corrugated Steel Pipe Specifications.Current edition approved May 1,2006.Published June 2006.Originallyapproved in 1982.Last previo
15、us edition approved in 2004 as A 796/A 796M-04a.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.1*A Summary of Cha
16、nges section appears at the end of this standard.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.D 2937 Test Method for Density of Soil in Place by theDrive-Cylinder Method2.2AASHTO Standard:Standard Specifications for Highway Bridges32.3F
17、AA Standard:AC No.150/53205B Advisory Circular,“Airport Drain-age,”Department of Transportation,Federal AviationAdministration,197043.Terminology3.1 General DefinitionsFor definitions of general termsused in this practice,refer to Terminology A 902.For defini-tions of terms specific to this standard
18、,refer to 3.2.3.2 Definitions of Terms Specific to This Standard:3.2.1 bedding,nthe earth or other material on which thepipe is laid,consisting of a thin layer of imported material ontop of the in situ foundation.3.2.2 haunch,nthe portion of the pipe cross sectionbetween the maximum horizontal dimen
19、sion and the top of thebedding.3.2.3 invert,nthe lowest portion of the pipe cross section;also,the bottom portion of the pipe.3.2.4 pipe,na conduit having a full circular shape,or in ageneral context,all structure shapes covered by this practice.3.2.5 pipe-arch,na pipe shape consisting of an approxi
20、-mate semi-circular top portion,small radius corners,and largeradius invert.3.2.6 arch,na pipe shape that is supported on footingsand does not have a full metal invert.4.Symbols4.1 The symbols used in this practice have the followingsignificance:A=required wall area,in.2/ft mm2/mm(AL)=maximum highwa
21、y design axle load,lbf NCl=longitudinal live load distribution factor for pipearchesd=depth of corrugation,in.mmE=modulus of elasticity=29 by 106lbf/in.2200 by103MPa(EL)=earth load,lbf/ft2kPa(FF)=flexibility factor,in./lbf mm/Nfy=specified minimum yield strengthFor 6 by 2in.150 by 50mm corrugationTy
22、pe 33=33 000 lbf/in.2225 MPaType 38=38 000 lbf/in.2260 MPaFor 15 by 512in.380 by 140mm and 16 by 6in.400 by150mm corrugations=44 000 lbf/in.2300 MPaFor all other corrugations=33 000 lbf/in.2225 MPafu=specified minimum tensile strengthFor 6 by 2in.150 by 50mm corrugationType 33=45 000 lbf/in.2310 MPa
23、Type 38=48 000 lbf/in.2330 MPaFor 15 by 1512in.380 by 140mm and16 by 6in.400 by 150mm corrugations=55 000 lbf/in.2380 MPaFor all other corrugations=45 000 lbf/in.2310 MPafc=critical buckling stress,lbf/in.2MPah=height of cover,in.mm determined as fol-lows:(1)highwaysfrom top of pipe to topof rigid p
24、avement,or to top of subgrade forflexible pavement;(2)railwaystop of pipeto bottom of tieH=depth of fill above top of pipe,ft mHmin=minimum depth of fill,ft mHmax=maximum depth of fill,ft mI=moment of inertia of corrugated shape,in.4/in.mm4/mm(see Tables 1-34)(IL)=pressure from impact load,lbf/ft2kP
25、ak=soil stiffness factor=0.22 for good side-fillmaterial compacted to 90%of standard den-sity based on Test Method D 698L1,L2,L3=loaded lengths,in.mm defined in 18.3(LL)=pressure from live load,lbf/ft2kPaP=total design load or pressure,lbf/ft2kPaPc=corner pressure,lbf/ft2kPaPf=factored crown pressur
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