 |  Columns & Footings 56 Flashcards |  Start |
 | What is the slenderness ratio (λ) formula for a column? |  Card: 1 / 56 |
| Λ = effective length / least lateral dimension | Card: 2 / 56 |
| Fill in the blank: The load carrying capacity for a short column is given by P = ______. | Card: 3 / 56 |
| ΣscAsc + σccAc | Card: 4 / 56 |
| True or False: If λ > 12, the column is classified as a short column. | Card: 5 / 56 |
| False. If λ > 12, the column is classified as a long column. | Card: 6 / 56 |
| Riddle: I'm a measure of how slender a column is, with a ratio that defines its strength or weakness. What am I? | Card: 7 / 56 |
| Slenderness ratio (λ) | Card: 8 / 56 |
| What is the minimum area of steel reinforcement required for a column? | Card: 9 / 56 |
| 0.8% of the gross area of the column | Card: 10 / 56 |
| What is the maximum area of steel reinforcement when bars are not lapped? | Card: 11 / 56 |
| 6% of the gross area of the column | Card: 12 / 56 |
| Fill in the blank: The effective length of a column is denoted as ______. | Card: 13 / 56 |
| Leff | Card: 14 / 56 |
| True or False: Helical reinforcement is typically used only for rectangular columns. | Card: 15 / 56 |
| False. Helical reinforcement is provided only for circular columns. | Card: 16 / 56 |
| What is the maximum distance allowed between longitudinal bars in a column? | Card: 17 / 56 |
| 300 mm | Card: 18 / 56 |
| Riddle: I am a short length, my effective length is not more than three times my least lateral dimension. What am I? | Card: 19 / 56 |
| Pedestal | Card: 20 / 56 |
| How is the load carrying capacity for a long column calculated? | Card: 21 / 56 |
| P = Cr(σscAsc + σccAc) | Card: 22 / 56 |
| Fill in the blank: The strength of a column with helical reinforcement is increased by ______. | Card: 23 / 56 |
| 5% | Card: 24 / 56 |
| True or False: The minimum eccentricity for all columns should be designed as zero. | Card: 25 / 56 |
| False. All columns should be designed for a minimum eccentricity. | Card: 26 / 56 |
| What is the effective span of a slab supported by walls that are 230 mm thick and spaced 3.3 m apart? | Card: 27 / 56 |
| 3.15 m | Card: 28 / 56 |
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| Riddle: I hold loads and bear weight, my size is determined by my depth and width, but my strength comes from the steel inside. What am I? | Card: 29 / 56 |
| Reinforced concrete beam | Card: 30 / 56 |
| What is the maximum eccentricity allowed for a column with unsupported length? | Card: 31 / 56 |
| 20 mm | Card: 32 / 56 |
| Fill in the blank: For a doubly reinforced beam, the moment of resistance is calculated using ______. | Card: 33 / 56 |
| Compressive and tensile forces in steel | Card: 34 / 56 |
| True or False: The area of compression steel in a doubly reinforced beam is always greater than the tension steel. | Card: 35 / 56 |
| False. In a doubly reinforced beam, tension steel can be greater. | Card: 36 / 56 |
| What is the diameter of the minimum bar allowed for reinforcement in columns? | Card: 37 / 56 |
| 12 mm | Card: 38 / 56 |
| Fill in the blank: The slenderness limit for unsupported length between end restraints is ______ times the least lateral dimension. | Card: 39 / 56 |
| 60 | Card: 40 / 56 |
| How is the moment of resistance for a doubly reinforced beam calculated? | Card: 41 / 56 |
| By considering the contributions from both tension and compression steel. | Card: 42 / 56 |
| Riddle: I am crucial for columns, preventing buckling and bending, what am I? | Card: 43 / 56 |
| Transverse reinforcement (ties) | Card: 44 / 56 |
| What is the minimum number of bars required for reinforcement in a rectangular column? | Card: 45 / 56 |
| 4 | Card: 46 / 56 |
| True or False: A column with an unsupported length of 3 m that is braced against side sway requires an eccentricity of 25 mm. | Card: 47 / 56 |
| False. It requires an eccentricity of 20 mm. | Card: 48 / 56 |
| Fill in the blank: The effective length factor for a column fixed at one end and pinned at the other is ______. | Card: 49 / 56 |
| 0.80 | Card: 50 / 56 |
| What is the recommended minimum area of steel for a pedestal? | Card: 51 / 56 |
| 0.15% | Card: 52 / 56 |
| What is the load carrying capacity formula for a short column? A) P = σsc Asc + σcc Ac B) P = Cr(σsc Asc + σcc Ac) C) P = 1.05(σsc Asc + σcc Ac) D) P = 0.45 fck Ac + 0.75 fy Asc | Card: 53 / 56 |
| A) P = σsc Asc + σcc Ac | Card: 54 / 56 |
| Fill in the blank: The slenderness ratio (λ) is defined as ______. | Card: 55 / 56 |
| Effective length/least lateral dimension | Card: 56 / 56 |
| Completed! Keep practicing to master all of them. |  Restart |
