AR25202 Structural Mechanics – Semester II – Arch – R-2025

Subject Code & Name: AR25202 – Structural Mechanics

Regulation: R-2025

Semester: II (Second Semester)

Branch: B. Arch. (Arch)

Credits / L-T-P: 3 Credits | L-T-P: 3-0-0

Course Objectives

• To give familiarity about structural resolutions and its important in realisation of architectural design concepts.
• To give exposure to forces, moments and resolution of forces.
• To give understanding of geometrical properties such as centroid, moment of inertia, etc of sections of different shapes.

Full Unit-wise Syllabus

Unit I – Force System

Principles of statics. Forces and their effects. Types of force systems. Resultant of concurrent and parallel forces. Principle of moments. Varignon’s theorem. Principle of equilibrium (no reaction problems).

Unit II – Analysis of Trusses

Analysis of plane trusses. Introduction to Determinate and Indeterminate plane trusses. Analysis of simply supported and cantilevered trusses by method of joints.

Unit III – Sectional Properties

Properties of section – Centre of gravity, Moment of Inertia, Section modulus, Radius of gyration for various structural shapes. Theorem of perpendicular axis. Theorem of parallel axis.

Unit IV – Elastic Properties and Constants

Elastic properties of solids. Concept of stress and strain. Deformation of axially loaded simple bars. Types of stresses. Concept of axial and volumetric stresses and strains. Elastic constants. Elastic Modulus. Shear Modulus. Bulk Modulus. Poisson’s ratio. Relation between elastic constants (excluding composite bar and tapered Section).

Unit V – Complex Stresses

Principal stresses and strain. Numerical and Graphical method. Mohr’s diagram.

Course Outcomes (COs)

• CO1: Ability to apply the concepts of action of forces on a body and should be able to apply the equilibrium concepts.
• CO2: Understanding the concept of bending moment and shear force of beam.
• CO3: Understanding of the basic geometrical properties of sections.
• CO4: Ability to understand dynamics of stress and strain.

Assessment Pattern (Quick Note)

• Weightage: Continuous Internal Assessment 40% | End Semester Examinations 60%
• Internal methodology: Two Assessments with equal weightage – Internal written Test/Examination (50%), Assignment (50%) of any mode such as study, seminar, and or a combination of modes, etc.

Source: Official Anna University – B. Arch. R-2025 Syllabus
Last Updated: September 2026