Estimating in Building Construction

82 CHAPTER NINE EXAMPLE 9-14 BASEMENT EXCAVATION FIGURE 9.30.Sheet Pilings. FIGURE 9.31.Typical Excavation. Determine the amount ...

Excavation 83 FIGURE 9.32.Building Plan. FIGURE 9.33.Basement Cross-Section. FIGURE 9.34.Basement Cross-Section. ...

84 CHAPTER NINE From the building plan, the exterior dimensions of the base- ment are 26 1 by 32 4 . From the wall section, ...

Excavation 85 FIGURE 9.36.Sketch of Spread Footing.  16 hours Total hours14 equipment hours2 hours for mobilization Equipmen ...

86 CHAPTER NINE From Example 9-14, the basement excavation is 10,997 bcf. Backfill (bcy)4,134 ccf> 27 cf per cy 153 ccy Bac ...

Excavation 87  9–12 Excess and Borrow Once the earthwork has been calculated in terms of excava- tion, backfill, and grading, t ...

88 CHAPTER NINE The trees and shrubs required for the project will gener- ally be handled by a subcontractor who specializes in ...

Excavation 89 removing fences and rails removing boulders wrecking old buildings Foundations: underpinning existing buildings di ...

90 CHAPTER NINE Check the soil borings for the kind of soil recorded and the approximate depth the piles must be driven. The acc ...

Excavation 91 EXAMPLE 9-19 ASPHALT TAKEOFF Determine the quantity of asphalt and subgrade material required for the parking lot ...

92 10–1 Concrete Work The concrete for a project may be either ready mixed or mixed on the job. Most of the concrete used on com ...

List each of the concrete items required on the project. Determine the quantities required from the working drawings. Footing s ...

94 CHAPTER TEN This sketch shows how the footing dimensions for side G were determined. Figure 10.3 is a tabulation of all dimen ...

Concrete 95 FIGURE 10.6.Volume in Bells 50-Degree Angle (top) and 60-Degree Angle (bottom). EXAMPLE 10–3 DRILLED PIER From the s ...

96 CHAPTER TEN The remaining element of the drilled piers is to determine the volume of the shaft, which is done by subtracting ...

Concrete 97 Use 63 cy  Quantity of concrete in exterior foundation walls62.9 cy 59.9 cy1.05 Quantity of concrete in exterior ...

98 CHAPTER TEN FIGURE 10.11.Grade Beam Details. FIGURE 10.10.Grade Beam Location. FIGURE 10.12.Foundation Wall and Grade Beam Ta ...

Concrete 99 FIGURE 10.13.Slab Areas. FIGURE 10.14.Foundation Wall and Slab Detail. FIGURE 10.15.Slab Area. EXAMPLE 10-7 CONCRETE ...

100 CHAPTER TEN FIGURE 10.17.Labor Productivity Rates—Placing Concrete. Productivity Rate Type of Placement (Labor Hours/c.y) Co ...

FIGURE 10.18. Cast-In-Place Concrete Estimate Summary. 101 ...