Handbook of Civil Engineering Calculations

in design is given by v = \Q(a/d) 2 vY{9[2 + (a/d) 2 ]}, where v = true maximum shearing stress, IMn 2 (kPa); v' = nominal maxim ...

of rupture. For beams more than 16 in (406.4 mm) deep, it is necessary to allow for this reduction in strength by introducing a ...

FIGURE 1 sion and compression flange. Then A = 3(8.93) = 26.79 in^2 (170.268 cm^2 ); I 0 = 3(22.5) = 67.5 in^4 (2809.56 cm^4 ). ...

Establish the allowable spacing of the bridging To do this, compare the moments of inertia with respect to the principal axes. ...

Calculation Procedure: Assume that d = 7.5 in (19O.5 mm), and classify the column Thus, LId= 144/7.5 = 19.2 and K= 0.64(1,760,0 ...

COMPRESSION ON AN OBLIQUE PLANE Determine whether the joint in Fig. 3 is satisfactory with respect to bearing if the allow- able ...

With (f> = 30°, sin 30° = 0.500; sin 15° = 0.259; cos 15° = 0.966; tan 15° = 0.268. Find the lengths AC and BC Express these ...

CAPACITY OF LAG SCREWS In Fig. 6, the cottonwood members are connected wtih three^5 Xs-In (15.88-mm) lag screws 8 in (203.2 mm) ...

Determine whether the joint complies with the Specification Assume 'fA-in (23.8-mm) diameter bolt holes. The gross area of the ...

(a) SpI it-ring connection FIGURE 8 The Specification requires a minimum edge distance of 2% in (69.85 mm). The edge distance in ...

SECTION 4 SOIL MECHANICS SOIL MECHANICS Composition of Soil Specific Weight of Soil Mass Analysis of Quicksand Conditions Measur ...

COMPOSITION OF SOIL A specimen of moist soil weighing 122 g has an apparent specific gravity of 1.82. The specific gravity of th ...

cleanup. The work required at some sites ranges from excavation of buried waste to its eventual disposal by incineration. Portab ...

MEASUREMENT OF PERMEABILITY BY FALLING-HEAD PERMEAMETER A specimen of soil is placed in a falling-head permeameter. The specimen ...

(a) Flow net FIGURE 2 In Fig. 2a, where water flows under a dam under a head H 9 lines AB and CD are flow lines and EF and GH ar ...

essary to load a body in a manner that produces identical boundary conditions and then to ascertain the directions of the princi ...

VERTICAL FORCE ON RECTANGULAR AREA CAUSED BY POINT LOAD A concentrated vertical load of 20 kips (89.0 kN) is applied at the grou ...

VERTICAL PRESSURE CAUSED BY RECTANGULAR LOADING A rectangular concrete footing 6 x 8 ft (182.9 x 243.8 cm) carries a total load ...

(b) Mohr's diagram for unconfined compression lest FIGURE 6 Consider a soil prism in a state of triaxial stress. Let Q denote a ...

Construct a tangent to the circle Draw a line through H tangent to the circle. Let F denote the point of intersection of the ta ...