2001 ASD Supplements - unprotected PDF - American Wood Council

ASD TIMBER POLES AND PILES SUPPLEMENTPP-5DESIGNADJUSTMENTFACTORS33.1 General PP-63.2 Use of Adjustment Factors PP-63.2.1 Bending (Moment and Shear) PP-63.2.2 Compression PP-63.2.3 Bearing PP-73.2.4 Load Duration Factor, C DPP-73.2.5 Temperature Effect Factor, C tPP-73.2.6 Untreated Factor, C uPP-73.2.7 Single Pile Factor, C spPP-73.2.8 Critical Section Factor, C csPP-73.2.9 Bearing Area Factor, C bPP-83.2.10 Wet Service Factor, C MPP-8Table 3.1 Applicability of Adjustment Factors for Polesand Piles ...................................................................PP-7Table 3.2 Frequently Used Load Duration Factors, C D .......PP-8Table 3.3 Temperature Effect Factor, C t , for Poles andPiles Exposed to Sustained ElevatedTemperatures ..........................................................PP-8Table 3.4 Untreated Factor, C u , for Poles and Piles thatare Either Air-Dried Before Treating or are notTreated at All ...........................................................PP-8Table 3.5 Single Pile Factors, C sp , for Round Timber Piles ...PP-9Table 3.6 Compression Parallel to Grain Critical SectionModification Factor, C cs , for Poles and Piles ........PP-9Table 3.7 Bearing Area Factors, C b , for Poles and Piles ......PP-9AMERICAN FOREST & PAPER ASSOCIATION