EBK PRINCIPLES OF HIGHWAY ENGINEERING A
6th Edition
ISBN: 9781119299332
Author: WASHBURN
Publisher: JOHN WILEY+SONS,INC.-CONSIGNMENT
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Chapter 2, Problem 8P
To determine
The maximum acceleration of a car from rest position, if the car is on a paved, level roadway surface with a coefficient of adhesion is
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6.48 This "double" nozzle discharges water (p = 62.4 lbm/ft³) into the atmosphere at a rate of 16 cfs. If the nozzle is lying in a horizontal plane, what X-component of force acting through the flange bolts is required to hold the nozzle in place? Note: Assume
irrotational flow, and assume the water speed in each jet to be the same. Jet A is 4 in. in diameter, jet B is 4.5 in. in diameter, and the pipe is 1.4 ft in diameter.
A
30°F
B
Problem 6.48
Xx
6-1 For the rectangular beam shown in Fig. P6-1,
(a) Draw a shear-force diagram.
(b) Assuming the beam is uncracked, show the
direction of the principal tensile stresses at
middepth at points A, B, and C.
(c) Sketch, on a drawing of the beam, the inclined
cracks that would develop at A, B, and C.
10 kips
A
B
1 kip/ft
7.5 ft
Fig. P6-1
+
7.5 ft
6 ft
10 kips
6.85 A reducing pipe bend is held in place by a pedestal as shown. There are expansion joints at sections 1 and 2, so no force is transmitted through the pipe past these sections. The pressure at section 1 is 20 psig, and the rate of flow of water (p = 62.4
Ibm/ft³) is 2 cfs. Find the force and moment that must be applied at section 3 to hold the bend stationary. Assume the flow is irrotational, and neglect the influence of gravity.
6 in. diameter
+
24 in.
24 in.
(3
4 in. diameter
Problem 6.85
Chapter 2 Solutions
EBK PRINCIPLES OF HIGHWAY ENGINEERING A
Ch. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Prob. 7PCh. 2 - Prob. 8PCh. 2 - Prob. 9PCh. 2 - Prob. 10P
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- Q1) Choose the correct answer: 1- Rankine's theory of earth pressure neglect: The pressure on the wall is to act parallel to the surface of the soil at angle (B) to the horizontal. The effect of cohesion on active and passive pressure. The friction developed between a retaining wall and the soil. o The depth of tension zone. o The effect of water table. 2- The lateral earth pressure is the lateral pressure that developed from: o Water beside it. o Soil beside structure. o External loads. o All the above. o Excavation beside structure. 3- The coefficient of earth pressure at rest represented as o Ko-1-sing expression given by Jaky. o Ko-sing 。 Ko-1-cosp о o Ko-cosp 。 Ko" tano 4- If the backfill carries a uniform surcharge q, then the lateral pressure at the depth of wall His: o pa-Ka yz+Ka q o pa Ka yz-Ka q o pa Ka yz*Ka q o pa Ka yz/Ka q 。 pa=Ka yz+q 5- During the active state of plastic equilibrium, the retaining wall moves: o Towards the fill o Away from the fill o Does not change…arrow_forwardس 1: سم ، خمن كمية الأعمال الترابية اللازمة لتنفيذ جزء من القناة وفقًا للبيانات التالية: عرض القناة = 3م المنحدر الجانبي في الحفر = 1:1 وفي الدفن = 1:1.5 عرض الضفة = 2 م من الجانبين عمق الاملاء الكامل ) full supply depth)= 80 السافة العمودية بين اعلى مستوى للمياه واعلى نقطة في الضفة الجانبية ( free board) = 40 سم، ميل القاعدة = 1:5000 مستوى قاعدة القناة المقترح R.D. (m) 1000 2000 3000 4000 G.L. (m) 210.8 210.4 208.8 208.4 FSD 210= (P.B.L) BANK OF CHANNELarrow_forwardA 8.5 meter simply supported reinforced concrete beam on parallel rectangular column, where the column width is 300 mm is shown in Figure carries a uniformly distributed variable action of 10 kN/m and permanent action of 9 kN/m (including self-weight of beam). The clear cover of beam for class XC-1 is 25 mm, diameter of main and shear reinforcement are 20 mm and 8 mm respectively. The characteristic material strengths are fck = 30 N/mm² and fyk = 500 N/mm². Apply variable Strut Inclination Method to design the shear reinforcement (links) for the beam. h = 370 mm 마 *b = 230 mm Section A-Aarrow_forward
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