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A group of beams that has both ends pinned must use the Free command. The BEAMS card for this group has the following format:
Beams FREE
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ftors
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fbndstr
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fbndweak
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tbndstr
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tbndweak
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Pinned-end beams must be returned to end connection default values. The BEAMS card for this group has the following format:
Beams FIX
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ftors
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fbndstr
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fbndweak
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tbndstr
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tbndweak
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