1. Strong-column/weak-beam

2. MOMENT FRAME BEHAVIOR
SEAOC Blue Book 1999

3. STRONG-COLUMN, WEAK BEAM
Blue Book Commentary C402.5

4. GLOBAL STRONG-COLUMN, WEAK-BEAM
Formula is based on the sum of moment strengths for the columns and beams framing into a level.
S Mn Columns below  S Mn Beam left and right MB MC

5. Takitori 100%

6. RUTHERFORD & CHEKENE 4/15/2017
Replace “Project Name” with your project’s name, which will appear on all slides.
Leave text with colons after it (ie “Team: “) then insert your text where it says “fill in…” or “discuss…”
RUTHERFORD & CHEKENE

7. HYBRID Beam-Column connection
Mild Steel
Fiber reinforced grout pad
Unbonded post-tensioned tendons
Courtesy of Ms. S. Nakaki

8. Hybrid System Mechanism
qdes
Tension force in mild steel
Tension force in prestressing steel
Compression force in concrete and mild steel
Diagonal strut and bond stress transfer joint shear
Courtesy of Ms. S. Nakaki

9. Weak pier story mechanism
maffei seaonc seminar eq damage and retrofit concrete
Weak pier story mechanism
4/15/2017
4/15/2017 9

10. Plastic analysis – SEAOC seismic design examples, Volume 3
maffei seaonc seminar eq damage and retrofit concrete
Plastic analysis – SEAOC seismic design examples, Volume 3
4/15/2017
4/15/2017 10

11. Dual system Desired mechanism Undesirable mechanism
RUTHERFORD & CHEKENE