Handbook of Civil Engineering Calculations

t = t'(cos a sin 8 -sin a cos 8 cos y) (50) Find the true thickness, using Eq. 50 Thus, borehole through A: 8 = 49°; y = 180° - ...

photograph to the corresponding distance along the ground. In this case, the ratio is 1 cm/120 m = 0.01 m/120 m = 1/12,000. Let ...

Solve this equation for the flying height Take sea level as datum. From the foregoing equation, with the meter as the unit of l ...

Calculation Procedure: Compute the flying height with reference to the ground Take the ground as datum. Then scale S = ftH, or ...

Related Calculations: Let A denote a point at an elevation h above the datum, let B denote a point that lies vertically below A ...

(a) Elevation normal to principal plane FIGURE 31 Then *j = +40.63 cos 18° - 73.72 sin 18° - +15.86 mm; y« = - (+40.63) sin 18° ...

in the principal plane. Then kq = cos t and Lk =/sec t—y\ sin t. From Fig. 212b, QA/qa = LQfLq. From Fig. 3 Ia, LQILq = LNILk = ...

Calculation Procedure: Establish the relationship between elevation and parallax Two successive photographs are said to overlap ...

(a) Elevation normal to line of flight (c) Elevation parallel to line of flight FIGURE 32 XA = (XJp)B and YA = (yalp)B. Then XR ...

DETERMINING SCALE OF OBLIQUE PHOTOGRAPH In a high-oblique aerial photograph, the distance between the apparent horizon and the p ...

(a) Elevation normal to principal plane FIGURE 34 0, which is angle oLK\. Then 6 = d + a. Let H = flying height above sea level ...

(a) Elevation normal to principal plane FIGURE 35 J. Compute the scale along the specified constant-scale line From above, 6 = 3 ...

or steel girders. Except for the deviations indicated, the Standard Specifications for High- way Bridges, published by the Ameri ...

FIGURE 36. Transverse section of T-beam bridge. Verify that the slab size is adequate and design the reinforcement The AASHTO S ...

FIGURE 37. Load group and its resultant. Calculate the maximum live-load shear in the interior girder caused by the moving-load ...

v = Vlb'jd = 66,2807(14 x 0.875 x 32.62) = 166 < 225 lb/in^2 (1144.6 < 1551.4 kPa). This is acceptable. Compute the moment ...

FIGURE 39. Transverse section of composite bridge. respectively. The superscripts c and n refer to the composite and noncomposit ...

9012 - 59.16(4.73) 2 = 12,916 in 4 (53.76 dm 4 ); Sb = 879 in 3 (14,406.8 cm^3 ); Sts = 570 in^3 (9342.3 cm^3 ). Transform the ...

Compute the maximum live-load moment, with impact included In accordance with the AASHTO, the distribution factor is DF = 6.75/ ...

Compute VDL and VLL+I at the support and at K At the support F£>L = ^(0.25O x 74.5) = 9.31 kips (41.411 kN); IF = 0.251. Con ...