Structural Analysis II

CE3602

STRUCTURAL ANALYSIS II

COURSE OBJECTIVE:

• To learn the method of drawing influence lines and its uses in various applications like beams, bridges and plane trusses and to analyse arches and suspension bridges

UNIT I

INFLUENCE LINES FOR DETERMINATE STRUCTURES

Introduction to moving loads, Concept of Influence Lines, Influence lines for reactions in statically determinate structures -Influence lines for shear force and bending moment in beam section - Calculation of critical stress resultants due to concentrated and distributed moving loads - Influence lines for member forces in pin jointed plane frames.

UNIT II

INFLUENCE LINES FOR INDETERMINATE BEAMS

Muller Breslau's principle - Influence line for support reactions, shearing force and bending moments for indeterminate beams - propped cantilevers, fixed beams and continuous beams.

UNIT III

ARCHES

Arches - Eddy's theorem - Types of arches - Analysis of three-hinged, two-hinged and fixed arches - Parabolic and circular arches - influence lines, rib shortening- Settlement and temperature effects.

UNIT IV

SUSPENSION BRIDGES AND SPACE TRUSSES

Analysis of suspension bridges - Unstiffened cables and cables with three hinged stiffening girders - Influence lines for three hinged stiffening girders - Introduction to analysis of space trusses using method of tension coefficients.

UNIT V

APPROXIMATE ANALYSIS OF FRAMES

Approximate analysis for gravity loadings - substitute frame method for maximum moments in beams and columns Approximate analysis for horizontal loads - portal method and cantilever method - assumptions - axial force, shearing force and bending moment diagrams.

TOTAL: 45 PERIODS

COURSE OUTCOMES:

Students will be able to;

CO1 Draw influence lines for statically determinate structures and calculate critical stress resultants.

CO2 Understand Muller Breslau principle and draw the influence lines for statically indeterminate beams.

CO3 Analyse three hinged, two hinged and fixed arches.

CO4 Analyse the suspension bridges with stiffening girders

CO5 AnalysHYDe rigid frames by approximate methods for gravity and horizontal loads.

TEXTBOOKS:

1. Bhavikatti, S.S, Structural Analysis, Vol. 1 & 2, Vikas Publishing House Pvt.Ltd., NewDelhi-4, 2014.

2. Punmia.B.C, Ashok Kumar Jain and Arun Kumar Jain, Theory of structures, Laxmi, Publications, 2004.

REFERENCES:

1. Negi.L.S and Jangid R.S., Structural Analysis, Tata McGraw-Hill Publishers, 2004.

2. Reddy C.S., Basic Structural Analysis, Tata McGraw Hill Publishing Co. Ltd., Third Edition, 2010.

3. Gambhir.M.L., Fundamentals of Structural Mechanics and Analysis, PHI Learning Pvt. Ltd., 2011.

4. Vazrani.V.N And Ratwani, M.M, Analysis of Structures, Vol.II, Khanna Publishers, 2015.