Plastic Design of Portal Frames |
Contents
CONTINUOUS BEAMS AND PURLINS | 1 |
Drawingboard method p 7 Virtual work | 11 |
SINGLEBAY PITCHEDROOF PORTAL FRAMES | 24 |
Pinned footings p | 46 |
MULTIBAY FRAMES | 70 |
STANCHION STABILITY 8888 | 88 |
Appendix | 96 |
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Common terms and phrases
Alternatively analysis angle apex applied assumed axial load axis base frame basic building calculated cantilever carrying centre collapse collapse mechanism complete condition Consider continuous correct corresponding course crane D₁ dead plus superimposed design example determinate discussed eaves effect elastic end bays end spans equal equations external fact figure fixed-ended beam foot formed frame free bending-moment diagram full plastic full plastic moment give given h₁ h₂ haunch increase internal spans joist length load factor M₁ M₂ maximum mechanism method mode mode of collapse Note occurs pitch pitched-roof plastic design plastic hinges positive possible problem propped purlin rafter ratio reactant diagram reactant line reason reduced redundancies reference rotation safe shown in fig simple sketched solution stability stanchion stress structure superimposed loading theorem tons uniform usually weight wind loading