Determine the amount of rebar needed for the continuous footings shown in Figures 11.36 and 11.37. Allow for two inches of cover and extend the dowels 15 inches into the wall. Add 10 percent for lap and waste to the continuous bars.
Determine the amount of rebar needed for the continuous footings shown in Figures 11.36 and 11.37. Allow for two inches of cover and extend the dowels 15 inches into the wall. Add 10 percent for lap and waste to the continuous bars.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Determine the amount of rebar needed for the continuous footings shown in Figures 11.36 and 11.37. Allow for two inches of cover and extend the dowels 15 inches into the wall. Add 10 percent for lap and waste to the continuous bars.
Transcribed Image Text:## Foundation Section Diagram
This technical drawing illustrates the structural foundation section of a building, labeled as Figure 11.37.
### Details:
- **Wall Structure:**
- **2 × 4 Wall with 7/16" OSB:** This indicates that the wall is constructed using 2x4 studs covered with a 7/16 inch oriented strand board (OSB).
- **Anchor Bolts:**
- **5/8" × 10" Anchor Bolt @32" O.C.:** These bolts are 5/8 inch in diameter and 10 inches long, spaced every 32 inches on center (O.C.) to secure the structure.
- **Rebar Specifications:**
- **#4 Rebar @ 12" O.C. Bothways:** Number 4 reinforcing bars are placed 12 inches apart in both horizontal and vertical directions to reinforce the concrete.
- **2 Each #4 Rebar Top and Bottom:** Two pieces of number 4 rebar are placed at the top and bottom of the structure for additional support.
- **4 Each #4 Cont. Rebar:** Continuous number 4 rebar pieces are integrated into the base slab for strength.
- **Dowels:**
- **#5 Dowels @ 12" O.C. Alternating Directions:** Number 5 dowels are inserted every 12 inches, in alternating directions, to connect the different layers of reinforcement.
### Dimensions:
- **Height of Structure:**
- Total height measured is 10 feet, including the foundation.
- From the bottom of the slab to the upper structure is 1 foot 3 inches.
- **Foundation Base:**
- The base has a width of 2 feet 6 inches.
- The foundation has a thickness of 1 foot.
This drawing serves as a detailed guideline for constructing a robust foundation, highlighting the importance of precise measurements and proper material use to ensure structural integrity.
Transcribed Image Text:**Foundation Plan Diagram**
This engineering diagram presents a detailed foundation plan with various measurements:
- The foundation displays an L-shaped design.
- The main rectangular section on the left measures 25 feet in height and 21 feet wide.
- Attached to the right is a rectangular extension measuring 20 feet in height and 15 feet wide.
- The total width of the entire foundation, including both sections, is 36 feet.
- The extension begins 5 feet from the corner of the larger section.
- Two small square sections are indicated with dashed lines on the top right, which might represent additional structural supports or features.
- Precise dimensions are marked on all sides to ensure accurate construction specifications.
This foundation plan is crucial for guiding the initial phases of construction, ensuring that all elements conform to specified measurements and site requirements.
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