A comprehensive second-floor structural plan for a multi-story residential building (6-15# building) with detailed reinforced concrete column configurations. The drawing shows column placement and reinforcement details from the first to second floor. Column specifications include:
Column Reinforcement Details:
– Various column types (GBZ1-GBZ23, KZ1-KZ3) with different cross-sections ranging from 200×400mm to 300×800mm
– Longitudinal reinforcement using Φ12-Φ22 rebar with reinforcement ratios from 0.50% to 1.21%
– Stirrup configurations primarily using Φ8 bars at 100-200mm spacing
– Volumetric confinement ratios between 0.53% and 1.57%
Beam Elements:
– Multiple beam types including L-series and KL-series with typical cross-sections of 200×400mm to 200×720mm
– Reinforcement details showing primary and secondary steel with various configurations of Φ12-Φ22 bars
The drawing includes detailed calculations for reinforcement ratios, concrete cross-sectional areas, and confinement specifications, ensuring compliance with relevant structural codes. Stairwells (#1 and #2) and a non-motorized vehicle ramp are indicated but detailed in separate drawings.
