• Semester 5, position 5

Basic goals of this course are: 1) introduction to logical principles in design and calculation of steel structures in mechanical engineering, 2) development of student creative skills in design of joints for characteristic structural systems throughout phases of idealization, parameterization and calculation.

After the completion of the course, student is trained to: • Set the suitable static model for different types of crane structures (like monorail and jib cranes) and analyze the effect of self-weight and payload • Carry out basic stress proof of simple structures (beams, cantilever and frames) • Calculate the welded joints of structures • Calculate the bolted joints of structures • Create the project of bolted connections for parts of I-beam girders • Calculate the truss forces (for statically determined trusses) and perform the buckling analysis

Properties of steel structures. Types of loads and design methods for structures. Design criteria of structures, check for: stresses, deflections, structural stability, connections, geometric stability and buckling. Welded connections. Bolted connections. Beams and frames. Trusses. Basic calculation of plane structural components.

Stresses and deflections for simple beam and cantilever due to various loads with examples of simple cranes. Calculation of fillet weld and bevel weld connections. Design of joints at simple L frame. Calculation of bolted connections. End-plate moment connections. Calculation of splice connection of the I-beam. FEA design check of connections. Buckling resistance of members. Calculation of forces in the members of statically determinate trusses.

Necessary courses: Mathematics 1, Strength of materials, Engineering materials 1.

Laboratory (room 516) with computers and software.

Total assigned hours: 75

New material: 20
Elaboration and examples (recapitulation): 10

Auditory exercises: 10
Laboratory exercises: 10
Calculation tasks: 5
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 5
Research study work: 0

Review and grading of calculation tasks: 2
Review and grading of lab reports: 2
Review and grading of seminar papers: 0
Review and grading of the project: 0
Test: 6
Test: 0
Final exam: 5

Activity during lectures: 10
Test/test: 30
Laboratory practice: 10
Calculation tasks: 20
Seminar paper: 0
Project: 0
Final exam: 30
Requirement for taking the exam (required number of points): 35

Vlada Gašić: Osnove metalnih konstrukcija u mašinogradnji, Handbook, Faculty of Mechanical Engineering, Belgrade, 2021.; Zoran Petković, Davor Ostrić: Metalne konstrukcije u masinogradji 1, Faculty of Mechanical Engineering, Belgrade 1996.