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STRUCTURAL BASICS

STRUCTURAL BASICS. STRUCTURAL BASICS . Redundancy Brittleness/ductility Building dynamic behavior Degradation of structural Strength Stiffness Stability . EARTHQUAKE MOVEMENT. DIAGONALLY BRACED FRAME. SHEATHED FRAME. MOMENT-RESISTING FRAME. CRACKING AT GIRDER-COLUMN CONNECTION.

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STRUCTURAL BASICS

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  1. STRUCTURAL BASICS

  2. STRUCTURAL BASICS • Redundancy • Brittleness/ductility • Building dynamic behavior • Degradation of structural • Strength • Stiffness • Stability

  3. EARTHQUAKE MOVEMENT

  4. DIAGONALLY BRACED FRAME

  5. SHEATHED FRAME

  6. MOMENT-RESISTING FRAME

  7. CRACKING AT GIRDER-COLUMN CONNECTION

  8. MASONRY CONSTRUCTION • Unreinforced brick masonry bearing wall buildings • Unreinforced concrete block masonry bearing wall buildings • Steel-frame with masonry infill buildings • Reinforced masonry buildings

  9. FAILURE OF UNREINFORCED MASONRY PARAPET AND WALL BARRICADED AREA SUBJECT TO FALLING HAZARD

  10. STAIRSTEP CRACKS USUALLY INDICATE UNREINFORCED CONCRETE BLOCK WALL

  11. PIERS CRACKED FROM POUNDING AT LEVEL OF ADJACENT ROOF

  12. EFFECTS OF POUNDING BETWEEN BUILDINGS

  13. HORIZONTAL AND VERTICAL REINFORCING CONCRETE BLOCK MASONRY

  14. BLOCKS PLACED ON END CONTINUOUS VERTICAL JOINT

  15. UNREINFORCED BRICK MASONRY REINFORCED CONCRETE BLOCK

  16. CONCRETE CONSTRUCTION • Structural walls or frames • Cast-in-place or pre-cast • Combinations of the above

  17. DIAGONAL CRACKS IN CONCRETE

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