3. The beam BE is used for hoisting machinery. It is anchored by two bolts at B, and at C it rest on a parapet wall. The essential details are given in the figure. Note that the bolts are threaded as shown in Detail 1 with d=0.620 in. at root of the threads. If this arrangement is used to lift equipment of 10 kN, determine the stress in the bolts BD and the bearing stress at C. Assume that the weight of the beam in negligible in comparison with the loads handled. B Timber nominal Section 20cm x 30cm Bolts diam.%" 28 cm D 1m View A-A C₁ 18 cm 20cm 2.5 m Building 111 P=10 kN Detail 1 D d F E 111 Distributed Force equivalent to F Threaded bolt

3. The beam BE is used for hoisting machinery. It is anchored by two bolts at B, and at C it rest on a parapet wall. The essential details are given in the figure. Note that the bolts are threaded as shown in Detail 1 with d=0.620 in. at root of the threads. If this arrangement is used to lift equipment of 10 kN, determine the stress in the bolts BD and the bearing stress at C. Assume that the weight of the beam in negligible in comparison with the loads handled. B Timber nominal Section 20cm x 30cm Bolts diam.%" 28 cm D 1m View A-A C₁ 18 cm 20cm 2.5 m Building 111 P=10 kN Detail 1 D d F E 111 Distributed Force equivalent to F Threaded bolt

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Physics The following truss is subjected to a load of P = 31 kN at joint C. The pin at joint A has a diameter of 25 mm and is subjected to double shear. Determine the average shear stress developed in pin A of the truss. Im PRN Im Pin A a. In your Hard Copy, draw a FBD of the truss. b. What is the Resultant force at A? Aresultant = Number Units (Answer to 3 sig digs) c. What is the shear stress in A? TA = Number Units (Answer to 3 sig digs
The bell-crank mechanism is in equilibrium for an applied load of F1 = 19 kN applied at A. Assume a = 280mm, b = 170mm, c = 80mm, and θ = 45°. Pin B is in a double-shear connection and has a diameter of 30 mm. The bell crank has a thickness of 29 mm. Determine the bearing stress in the bell crank at B. Express your answer in MPa rounded to the nearest tenths.
Problem # 3: The strut AB made from two bars (thickness of each bar = 0.50 in) is connected to a rectangular beam CD (b=0.80 in x h = 7.5 in) at joint B. The beam carries a concentrated load of 2750 lb at the end joint D. (a) determine the minimum diameter of the bolt at B if the shearing stress in the bolt is not to exceed 14000 psi. (b) determine the minimum diameter of the bolt at B if the allowable bearing stress in the bar plate is 20000 psi. Detail of joint B 0.80 in 3 ft с VO A 5 ft- + B 6 ft- D 2750 lb 3.75 in 3.75 in Strut AB - Beam CD (b X h) Bolt (dmin) -0.50 in
Simply Supported Beam ABCDE below carries multiple loads as shown. A built-up section made from a T-Section and a Channel (C-Section) fastened together by 16mmØ bolts, equally spaced from the center of the section, with shearing capacity t=100 MPa, for bearing os = 220 MPa for rivets in single shear and os = 280 MPa for rivets in double shear. E=200GPA for all materials. 8 KN 15 KN/m 12 KN/m 2m 3m 3m 2m Properties of T-Section Br = 180 mm Tf= 16 mm Tw = 12 mm D = 210 mm Properties of C-Section B = 105 mm T = 12 mm Tw = 12 mm D = 210 mm
*R9 4. Two A36 steel pipes, cach having a cross-sectional area of 200 mm, are screwed together using a union at B as shown. Originally the assembly is adjusted so that no load is an the pipe. If the union is then tightened so that its screw, having a lead of 0.55 mm, undergoes two full turns, determine the average normal stress developed in the pipe. Assume that the union at B and couplings at A and C are rigid. Neglect the size of the union. Note: The lead would cause the pipe, when unloaded, to shorten 055 mm when the union is rotated ane revolution. -09m- a6 m.
P 60° 3. The tension member is fastened together using a single bolt as shown. The bolt has a diameter of 0.6 in. Determine the maximum load P that can be applied to the member if the allowable shear stress for the bolts is 8 ksi and the allowable average normal stress is 12 ksi.
Two horizontal 5.39-kip forces are applied to pin B of the assembly shown. Knowing that a pin of 1.01-in. diameter is used at each connection,determine the bearing stress (in psi) at Bin member AB.
The pin-connected structure occupies the position under no load. When the loads G A (unknown) and H (16 kips) are applied, the rigid bar EF becomes horizontal. Bar AB 0.75in? 2.25in? is made of aluminum alloy (E=10,600 ksi) and bar CD is made of red brass (E=15, 000 ksi). Determine the weight E and the axial stresses in the B D F 10,000 120 G 4" 4" 2" two bars. 16"
G5 // The bar AB is considered to be absolutely rigid and is horizontal before the load of 10000N is applied. The connection at C is a pin, and AB is supported by the bronze rod EA and the steel rod FB. The length of EA is 1.5m and FB is 2.5m. Neglect any possibility of lateral buckling and the weights of all bars „Calculate the stresses in each rod. For bronze E=100 GPa, A=60 mm? for steel E=200 GPa, A= 25 mm? F Steel L=2.5m B. 3m 2m- Bronze L=1.5m 10000N
Consider the loads of the figure to be axially applied at sections B, C, and D to the concrete structure supported at A. IW E F P G 5 kN 5 kN A Determine P in kN when member BC is 24 mm in diameter, the axial stress in section F is 588 MPa, and W 309822 N. = 10 kN C 10 kN Rigid -bearing plates
250 mm A D P = 25 kN B 30 60 C TOP VIEW 280 mm Member AD is fabricated by joining two bars (E=205GPA, G,A=82GPA) and is pinned to plate ABC using a 5 mm diameter pins as shown in the figure. The yield strength of the pins is T,=890MPA. Plate ABC is a right triangle and is fixed along its edge BC. A 25KN Force P is then applied at end D causing a lateral strain in member AD with magnitude equal to 7.5x104mm/mm. This also causes Point A to displace only along the horizontal resulting to a shear strain at point A equal to y,=+0.00165rad. Determine the following: 1. Poisson's ratio of material used in member AD, vD 2. The normal strain in member AD, CAD 3. The average stress experienced by pin A, TA 4. Factor of Safety of pin A with respect to yielding, FS,A 5. Displacement of point D, A,
The rigid bar AD (figure STR-4) is supported by two steel wires of 1.5mm diameter (E = 200 GPa) and a pin and bracket at D. Knowing that the wires were initially taut. Determine the following: a. The additional tension in wire BE when a load P=900 N is applied at D. b. The additional stress in wire FC when a load P = 900 N is applied at D c. The corresponding deflection at point D.