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US Wood Beam - Validation Examples (ASD & LRFD)

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Introduction

In the following examples, we’ll go through the design of a wood beam (ASD/LRFD) to NDS 2018. The following examples outline the results for moment, shear and deflection design in ClearCalcs compared to textbook results. These examples come from an extensive list of different sources used to verify the accuracy of our calculators. Want to dive deeper into these examples? Visit McGraw-Hill AccessEngineering to access these worked examples, and more, in the textbooks!

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Example 1

Reference: Donald E. Breyer, P.E., Design of Wood Structures ASD/LRFD McGraw-Hill. Example 6-18 (ASD).

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Inputs

673d7ecaa6ddb538e638591a_Screen_Shot_2023_07_08_at_12_22_44_PM_895685dd84.png

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Outputs - ASD (Example 6-18)

673d7ecaa6ddb538e6385914_US_wood_beam_validation_examples_table_2_43b0cf0af5.png 673d7ecaa6ddb538e638591e_US_wood_beam_validation_examples_example_1_9449cc7cf9.png

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Example 2

Reference: Donald E. Breyer, P.E., Design of Wood Structures ASD/LRFD McGraw-Hill. Example 6-18 (LRFD).

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Inputs

673d7ecaa6ddb538e6385925_US_wood_beam_validation_examples_table_1_6a84c9d906.png

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Outputs

673d7ecaa6ddb538e638590f_US_wood_beam_validation_examples_table_4_62990403c9.png 673d7ecaa6ddb538e6385921_US_wood_beam_validation_examples_example_2_4d5b2d9c2b.png

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Example 3

Reference: Aghayere Ex 4.1

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Inputs

673d7ec9a6ddb538e638590a_US_wood_beam_validation_examples_table_5_0f16d998a9.png

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Outputs

673d7ecaa6ddb538e6385917_US_wood_beam_validation_examples_table_6_8437a07d47.png *The difference in long term deflection is due to the total load combination for the governing long term deflection. The example considers only the dead load, while ClearCalcs includes the D+L load combination to consider creep effects. By viewing the load combination D on the graphs, the value of 0.29 inches can be observed. 673d7ecaa6ddb538e6385934_US_wood_beam_validation_examples_example_3_1fbbf6206a.png