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Calculate The Bolt Slip Resistance in a Slip Critical
Connection Subjected to Tension: |
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Calculation: |
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Designer/Checker: |
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Input: |
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(Note: All input Metric units are converted to English units
for the equations below and then the output English units are converted back to
Metric) |
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AISC J3.9: |
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The following is for calculating the bolt slip resistance of a slip critical
connection subjected to an applied tension force. |
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Choose below, the hole filler factor where hf = 1.0 for no fillers, 1 filler or where bolts are added to distribute loads in the filler and hf = 0.85 for 2 or more fillers between connected parts. |
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Select the slip critical coefficient, u, below. Class A - unpainted clean
mill scale steel surfaces or surfaces with Class A coatings on blast-cleaned
steel and hot-dipped galvanized and roughened surfaces. Class B -
unpainted blast-cleaned steel surfaces or surfaces with Class B coatings on
blast-cleaned steel. |
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Choose hole condition below to adjust LRFD and ASD factors. |
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Number of slip planes (Ns) |
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Minimum fastener tension (Tb - kips or kN) |
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Tension force on the connection (T - kips or kN) |
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Number of bolts (Nb) |
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Note: Du = 1.13, ratio multiplier of mean installed
bolt pretension to the specified minimum bolt pretension.
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Output: |
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Nominal slip resistance, Rn = |
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Slip resistance, Ru = |
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