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36 Cards in this Set
- Front
- Back
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-A body acted upon by a balanced forced system -resultant is equal to zero |
Static equilibrum |
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-The action of one body upon another. -due to direct contact -generated by moving bodies |
Force |
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-Is a single force -A couple -A force and couple |
Resultant |
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Force |
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Couple |
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Force/couple |
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Arrangement of two or more forces that act on a body. |
Force system |
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2 types of force system |
Coplanar force system(2d) Spatial force system (3d) |
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ASTM A 184 |
Fabricated deformed steel bars |
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ASTM A 185 |
Steel welded wire fabric,plain |
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ASTM A 496 |
DEFORMED STEEL WIRE |
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ASTM A 497 |
Deform steel welded wire fabric |
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ASTM A 706 |
Low-alloy steel deformed bars |
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ASTM A 767 |
Zinc-coated reinforcing steel bars |
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ASTM A615 |
Billet steel bars |
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ASTM A616 |
Rail-steel bars |
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ASTM A617 |
Axle steel bars |
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ASTM A82 |
Plain steel wire |
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ASTM A775m |
Epoxy coated reinforcing steel bars |
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ASTM A884 |
Epoxy coated steel wire and welded wire |
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ASTM A934m |
Epoxy coated fabricated steel reinforcing bars |
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ASTM C150 |
Portland cement |
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ASTM C33 |
Aggregates |
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ASTM C331 |
Lightweigth aggregates |
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ASTM C94 |
Ready mixed concrete |
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ASTM A36 |
Structural steel |
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5 Plan structural irregularities |
Torsional irregularities Re-entrant corners Diaphragm discontinuity Out-of plane offset Nonparallel system |
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NSCP C101 section 421 |
Contains special requirement for the design of RC members that are part of the lateral resisting frame subjected to earthquake motions. |
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Reinforced concrete structure in heigh seismic risk must have: |
Strength Ductility Toughness |
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Performance criteria of RC members resisting earthquake: |
Serviciability Control limit Survival limit |
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Material remains in the elastic range and no damage is expected |
Serviciability |
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Some yielding may occur and may have minor structural damage. |
Control limit |
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Inelastic behavior and may have major structural damage |
Survival limit state |
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Fluid viscous damper |
Hydraulic devises that disipate the kinetic energy of seismic event and cushion the impact. |
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Friction dampers |
Dissipate energy only when the slip force of two surfaces rubbing againts each other. |
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Metalic yielding dampers |
Dissipate energy through the inelastic deformed of the materials. |
