ASTM D7258-2017 red 4894 Standard Specification for Polymeric Piles《高分子桩的标准规格》.pdf
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1、Designation: D7258 14D7258 17Standard Specification forPolymeric Piles1This standard is issued under the fixed designation D7258; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses in
2、dicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification addresses the use of round and rectangular cross-section polymeric piles in axial and lateral load-bearingapplications, including but not l
3、imited to marine, waterfront, and corrosive environments.1.2 This specification is only applicable to individual polymeric pile products. Sheet pile and other mechanically connectedpolymeric pile products using inter-locking systems, are not part of this specification.1.3 The piling products conside
4、red herein are characterized by the use of polymers, whereby (1) the pile strength or stiffnessrequires the inclusion of the polymer, or (2) a minimum of fifty percent (50 %) of the weight or volume is derived from thepolymer. The type classifications of polymeric piles described in Section 4 show h
5、ow they can be reinforced by composite designfor increased stiffness or strength.1.4 This specification covers polymeric piles fabricated from materials that are virgin, recycled, or both, as long as the finishedproduct meets all of the criteria specified herein. Diverse types and combinations of in
6、organic filler systems are permitted in themanufacturing of polymeric piling products. Inorganic fillers include such materials as talc, mica, silica, wollastonite, calciumcarbonate, etc. Pilings are often placed in service where they will be subjected to continuous damp or wet exposure conditions.D
7、ue to concerns of water sensitivity and possible affects on mechanical properties in such service conditions, organic fillers,including lignocellulosic materials such as those made or derived from wood, wood flour, flax shive, rice hulls, wheat straw, andcombinations thereof, are not permitted in th
8、e manufacturing of polymeric piling products.1.5 The values are stated in inch-pound units as these are currently the most common units used by the construction industry.1.6 Polymeric piles under this specification are designed using design stresses determined in accordance with Test MethodsD6108, D
9、6109, and D6112 and procedures contained within this specification unless otherwise specified.1.7 Although in some instances it will be an important component of the pile design, frictional properties are currently beyondthe scope of this document.1.8 Criteria for design are included as part of this
10、 specification for polymeric piles. Certain Types and sizes of polymeric pileswill be better suited for some applications than others. Polymeric piles designed and manufactured under the different Typeclassifications as defined within this specification will, as a whole, exhibit a wide-range of mech
11、anical properties. For example,a 10-in. diameter Type II, chopped glass fiber reinforced high-density polyethylene (HDPE) pile will likely have an apparentstiffness much different than a 10-in. diameter Type V, glass fiber reinforced composite tube filled with concrete. Similarly, theultimate moment
12、 capacity of these two example piles will also likely be significantly different from each other. Use of a licensedProfessional Engineer is, therefore, highly recommended for designing and selecting polymeric piles in accordance with thisspecification.1.9 This standard does not purport to address al
13、l of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.NOTE 1There is no known ISO equivalent to this specification.2. R
14、eferenced Documents2.1 ASTM Standards:2D883 Terminology Relating to Plastics1 This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.20 on Plastic Lumber.Current edition approved Jan. 1, 2014March 1, 2017. Published January
15、 2014March 2017. Originally approved in 2009. Last previous edition approved in 20092014 asD7258 09.14. DOI: 10.1520/D7258-14.10.1520/D7258-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvol
16、ume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adeq
17、uately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM
18、International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D1141 Practice for the Preparation of Substitute Ocean WaterD2344/D2344M Test Method for Short-Beam Strength of Polymer Matrix Composite Materials and Their LaminatesD2915 Practice for Sampling and Dat
19、a-Analysis for Structural Wood and Wood-Based ProductsD5033 Guide for Development of ASTM Standards Relating to Recycling and Use of Recycled Plastics (Withdrawn 2007)3D6108 Test Method for Compressive Properties of Plastic Lumber and ShapesD6109 Test Methods for Flexural Properties of Unreinforced
20、and Reinforced Plastic Lumber and Related ProductsD6112 Test Methods for Compressive and Flexural Creep and Creep-Rupture of Plastic Lumber and ShapesD6341 Test Method for Determination of the Linear Coefficient of Thermal Expansion of Plastic Lumber and Plastic LumberShapes Between 30 and 140F (34.
21、4 and 60C)D6662 Specification for Polyolefin-Based Plastic Lumber Decking BoardsE84 Test Method for Surface Burning Characteristics of Building Materials2.2 Other Documents:ASCE 7 Minimum Design Loads for Buildings and Other Structures4AASHTO GSDPB-1 Standard Specification for Design of Pedestrian B
22、ridges5AASHTO HB-13 Standard Specification for Highway Bridges5Department of Defense Unified Facility Criteria UFC 4-152-01 Design: Piers and Wharves, Naval Facilities EngineeringCommand, Washington DC3. Terminology3.1 Definitions:3.1.1 axial load-bearing pile, na vertical or battered member driven
23、into the ground to help support a load of any structurebearing upon it. Axial load-bearing piles are commonly divided into two kinds; point-bearing (end-bearing) and friction. Apoint-bearing pile derives practically all its support from the rock or soils near the point and much less from contact wit
24、h soil alongthe pile shaft. A friction pile derives its support principally from the soil along the pile shaft through the development of shearingresistance between the soil and the pile.3.1.2 lateral load-bearing pile, na vertical or battered member driven into the ground to resist lateral loads im
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