Columns

Columns

1. Lecture#1
   1. Column
   2. Types of column
      1. Classification on the Basis of Shape:   
      2. Classification on the Basis of Reinforcement:
      3. Classification on the Basis of Type of Loading:

   3. Classification of columns according to ACI Code.
   4. Types of reinforcement in Columns.
   5. Types of transverse reinforcement.
   6. Capacity of concentrically loaded short columns.
   7. Problem and solution
   8. Resistance factor at ultimate stage
2. Lecture#2
   1. Nominal capacity of concentrically loaded column at ultimate stage.
   2. Maximum and minimum steel ratios.
   3. Clear cover requirements.
   4. Design of ties.
   5. Spiral reinforcement.
   6. Design of spiral reinforcement.
3. Lecture#3
   1. Trial size of column
   2. Concentrically loaded short column
   3. Design problem and solution
      1. Design of square tied column
      2. Design of circular spiral column
4. Lecture#4
   1. Columns under eccentric loading

      
      

      1. Case 1: pure axial load/crushing failure
      2. case 2: balance failure
      3. Case 3: pure flexural failure
5. Lecture#5
   1. Case 4: dividing point between transition and tension controlled failure:
   2. case 5: p_n is given and p_n > p_nb
6. Lecture#6
   1. Case 8: e  is given and e < e _b
   2. Case 9: m_n is given and at failure steel is yielding
   3. Case 10: m_n is given and failure is due to crushing of concrete:
   4. Case 11: depth of n.a. is given ( c or a )
   5. Problem & Solution
   6. Nominal & design interaction curve
   7. Design of short column for uni-axial eccentricity when steel is on opposite faces