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Description of ASTM-D7381 2013ASTM D7381 - 07(2013)Standard Practice for Establishing Allowable Stresses for Round Timbers for Piles from Tests of Full-Size MaterialActive Standard ASTM D7381 | Developed by Subcommittee: D07.04 Book of Standards Volume: 04.10 ASTM D7381Significance and Use 4.1 This practice is primarily intended for use by associations, third-party grading agencies, technical societies and other groups that develop national design standards and use recommendations for round timber piles. 4.2 This practice provides procedures for establishing compression parallel to grain and bending stresses for round timber piles including: sampling of material for testing; methods of test and property calculation procedures; distribution analysis of test data; procedures for determining adjustments for critical section location; pile oversize, load sharing and treatment; and procedures for deriving allowable stresses. 4.3 In using allowable stresses established under this practice, factors specific to each end use which may affect the performance of the pile system shall be considered by the designer. Such factors include the location of the critical section, the bearing capacity of the soil, the ability of the pile to withstand driving forces, the properties of the cap or load distributive element tying piles together and the loading and conditions of service. 1. Scope 1.1 This practice contains procedures for establishing allowable compression parallel to grain and bending stresses for round timbers used for piling, based on results from full-size tests.
Note 1 Allowable stresses for compression perpendicular to grain and shear properties are established in
accordance with the provisions of Practice D2899 .
1.2 Stresses established under this practice are applicable to piles conforming to the size, quality, straightness, spiral grain, knot, shake and split provisions of Specification D25 . 1.3 A commentary on the practice is available from ASTM International. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards D25 Specification for Round Timber Piles D198 Test Methods of Static Tests of Lumber in Structural Sizes D245 Practice for Establishing Structural Grades and Related Allowable Properties for Visually Graded Lumber D1036 Test Methods of Static Tests of Wood Poles D1990 Practice for Establishing Allowable Properties for Visually-Graded Dimension Lumber from In-Grade Tests of Full-Size Specimens D2555 Practice for Establishing Clear Wood Strength Values D2899 Practice for Establishing Allowable Stresses for Round Timber Piles D2915 Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products D4761 Test Methods for Mechanical Properties of Lumber and Wood-Base Structural Material D6555 Guide for Evaluating System Effects in Repetitive-Member Wood Assemblies Keywords design; piles; stresses; timber; ICS Code ICS Number Code 79.040 (Wood, sawlogs and sawn timber) DOI: 10.1520/D7381-07R13 ASTM International is a member of CrossRef. ASTM D7381This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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