Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 5th Semester (Fifth Semester) 2017-2018 NCE 504 Structural Analysis Ii Question Paper
Paper Id nun? R0? No- m
B. TECH.
(SEM V) THEORY EXAMINATION 2017-18
STRUCTURAL ANALYSIS - II
Time: 3 Hours Total Marks: 100
Note: Attempt all Sections. If require any missing data; then choose suitably.
SECTION A
l. Attempt all questions in brief. 2 x 10 = 20
What do you mean by carry over moment?
State Castigliano?s second theorem.
Two hinged arch is a indeterminate structure. Why?
How horizontal thrust can be obtained by using Castigliano theorem?
What is the range of central dip?
What is the effect of temperature change in cable?
De?ne stiffness coef?cients.
What are the objectives of analysis of structures?
Differentiate between plastic modulus and section modulus.
What do you mean by plastic hinge?
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SECTION B
2. Attempt any three of the following: 10 x 3 = 30
a. Find the moments at the supports for the continuous beam shown in ?gure
below. Draw also B.M. diagram for the beam. Use slope de?ection method.
b. Using Muller Breslau Principle, compute the in?uence line obtained at 2 m
intervals for moment at mid span of BC of the continuous beam ABC shown
in ?gure below:
c. A cable of span 120 m and clip 10 m carries a load of 8 KN/m on the
horizontal span. Find the maximum tension in the cable and the inclination of
the cable at the support. Find also the forces transmitting to the supporting
pier, if the cable passes over smooth pulley on the top of the pier. The
anchor cable is at 300 to the vertical. Determine the maximum bending
moment for the pier , if the height of pier is 14 m.
Analyse the continuous beam in shown ?gure. If the downward settlement of
supports B and C are 10 mm and 5 mm respectively. Take EI = 184 x 10H N-
mm2. Use ?exibility matrix method.
A two span continuous beam ABC has span lengths AB = 6 m and BC = 6 m
and carries a UDL of 30 KN/m on entire length of the beam. A and C are
simply supports. If the load factor is 1.80 and the shape factor is 1.15 for the I
? section. Find the section modulus needed. Assume yield stress for the
material is 250 N/mmz.
SECTION C
3. Attempt any one part of the following: 10 x l = 10
(a)
(b)
A continuous beam ABCD is simply supported at A, B, C and is ?xed at D.
The span AB, BC and CD are 3m, 4 m and 2m long. The beam canies a point
load of 12 KN an AB at 2 m from A, a point load of 20 KN at the middle of
BC and a point load of6 KN at middle of CD. If lab: Ibo: lad = 122:2, ?nd
the supports moments using moment distribution method.
Analyse the following continuous beam shown in ?gure using ?method of
consistent defonnation?. Draw the bending moment diagram.
4. Attempt any one part of the following: 10 x 1 = 10
(a)
(b)
A two hinged parabolic arch of span 30 m and rise 6m carries two point
loads, each 60 KN, acting at 22.5 m and 15 m from the right end respectively.
Determine the horizontal thrust and maximum positive and negative moment
in the arch.
A two hinged semicircular arch of radius ?R? can?ied a load ?W? at a section
the radius vector corresponding to Which makes an angle ?a? With the
horizontal. Find the horizontal thrust at each support. Assume uniform
flexural rigidity.
5. Attempt any one part of the following: 10 x 1 = 10
(a)
(b)
A suspension cable of length 174.53 In is supported at the two ends at the
same levels. The supports are 170 m apart. The cable is subjected to a UDL
of 20 KN/m of horizontal length over its entire span. Detemline the reactions
developed at the supports and their inclination to the horizontal.
A three hinged stiffening girder of a suspension bridge of span 120 m is
subjected to two point loads of 240 KN and 300 KN at distances of 25 m and
80 m respectively from the left end. Find the forces and bending moment in
girder at a section 40 m from the left end. The central di p of the supporting
cable is 12 m. find also the maximum tension in the cable and draw the
B.M.D. for the girder.
Attempt any one part of the following: 10 x 1 = 10
(a) Develop the ?exibility matrix for the cantilever with co-ordinate as shown in
figure. Take uniform ?exural rigidity.
Analyse the continuous beam as shown 1n ?gure by stiffness matrix method.
if the support B sinks by 10 mm Take El: 6000 KN- -2.m
Attempt any one part of the following: 10 x 1 = 10
(21) Find the collapse load for the loaded portal frame shown in ?gure
(b) A continuous beam ABC is loaded as shown in ?gure, determine the required
plastic moment. If the load factor is 3.2.
This post was last modified on 29 January 2020