【国外标准】 Standard Practice for Establishing Allowable Stresses for Round Timber Piles

4.1 This practice is intended for use by associations, technical societies and other groups that develop national design standards and use recommendations for round timber piles.4.2 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. Such factors include the location of the critical section, the bearing capacity of the soil, the ability of the pile to withstand driving forces and conditions of service.1.1 This practice contains procedures for establishing allowable stresses for round timber piles starting with clear wood strength properties.1.2 Stresses established under this practice are applicable to piles conforming to the quality, straightness, spiral grain, knot, check, shake, and split provisions of Specification D25.1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.