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Nail Slip Deflection of Unloaded Gypsum Wallboard (Bug 2577)

When the constant nail slip deflection for gypsum wallboard (GWB) is so much greater than the deflection for the wood side that it draws no load, the program was still assigning the constant nail slip deflection to GWB. As a result, the deflection of the shearline was much greater than it should be, and it’s stiffness is much less, causing it to draw less loading under rigid diaphragm distribution or when loads are distributed to dissimilar materials along a shearline. This happened most often under low loading conditions, and has been corrected.

See Also

Force Distribution and Engineering Design

Elevated Dead Load Magnitude and Reduced Jhd Factor (Bug 2565)

Non-wall Dead Loads Treated as Wall Dead Loads (Bug 2571)

OSB Shear Defection Values for Deflection Design (Bug 2582)

Nail Deformation en for Larger Nail Sizes (Bug 2583)

Segment Shear Value in Deflection Table when Both Sides Same (Bug 2584)

Shear Deflection for Custom Sheathing Thicknesses (Bug 2585)

Nonsense Hold-down Values at Gable End of Monoslope Roof (Bug 2509)

Crash for Walls Spanning Multiple Blocks at Gable End (Bug 2510)

Torsional Sensitivity Seismic Irregularity Detection(Bug 2523)

Irregularity Message Typo (Change 128)