Handbook of Civil Engineering Calculations

96,000 = +0.588 in (+14.9352 mm); eb = -9792(12)796,000 = -1.224 in (-31.0896 mm); ee = 5024(12)796,000 = +0.628 in (15.9512 mm) ...

Replace the prestressing system with two hypothetical systems that jointly induce eccentricity moments identical with those of ...

prestress moment, beam-weight moment, maximum and minimum potential superim- posed-load moment, expressing each moment in terms ...

TABLE 4. Calculations for Two-Span Beam: Part a Section 12345 1 C 1 +0.067 5 +0.095 0 +0.082 5 +0.030 0 -0.062 5 2 C 2 -0.012 5 ...

Consider that a concordant trajectory has been plotted; express the eccentricity at section B relative to that at section 2 Thu ...

FIGURE 57. Composite Magnel diagram. Plot the concordant trajectory Do this by applying the values of C 3 appearing in Table 4; ...

= +363 + 390 + 253 = + 1006 lb/in 2 (+6936.4 kPa). At section 4:fbi = +349 + 318 = +667 lb/in 2 (+4599.OkPa);/^ = +349 -307 + 27 ...

TABLE 5. Calculations for Two-Span Continuous Beam: Part b Section 1 2 34 B econ, in (mm) +21.12 +26.88 +17.28 -7.68 -48.00 (536 ...

REACTIONS FOR A CONTINUOUS BEAM With reference to the beam in the previous calculation procedure, compute the reactions at the s ...

(a) Section for positive moment (b) Section for negative moment FIGURE 58. Steel beam encased in concrete, (a) Section for posit ...

Refer to Sec. 1. Where the bending moment is positive, the critical plane for horizon- tal shear is considered to be the surface ...

Calculation Procedure: Compute the unit loads W 1 , W 2 , and W 3 Refer to the AISC Specification and Manual. Although ostensib ...

The cross section properties in the AISC table may be applied. The moment of inertia refers to an equivalent section obtained by ...

Design the weld required to develop the cover plate at each end Use fillet welds of E60 electrodes, placed along the sides but ...

FIGURE 61. Ribbed floor. Try the cross section shown in Fig. 61, which has an average weight of 54 lb/ft^2 (2.59 kPa). Although ...

0.40 in 2 (2.58 cm 2 ). For negative reinforcement, supplement the two trussed bars over the support with one straight no. 5 bar ...

sign the slab by the working-stress method, using fc' = 3000 lb/in^2 (20.7 MPa) and fs = 20,000 lb/in^2 (137.9 MPa). Calculation ...

FIGURE 63. Vibrating bent. quired at the top to cause a horizontal displacement of one unit. Since the girder is consid- ered to ...

SECTION 3 TIMBER ENGINEERING In designing timber members, the following references are often used: Wood Handbook, Forest Product ...

BENDING STRESS AND DEFLECTION OF WOOD JOISTS A floor is supported by 3 x 8 in (76.2 x 203.2 mm) wood joists spaced 16 in (406.4 ...