Czech

5

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Institute of Structural Mechanics (STM)

Of all faculties

The students will be able to solve reactions and internal forces of the plane statically determinate structures, of plane beams with straight and broken axis, to solve three-hinged broken beam with and without a tie, the planar composed beam systems and plane trusses systems, to design centroid and second order moments of gross-section.

The basic secondary s school knowledge from mathematics and physics.

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1.Basic terms and axioms of statics. Concurrent system of forces in plane. System of parallel forces in plane.
2. General system of forces in plane. Static models of plane structures, constrains and supports, types of loading, reactions.
3. Components of internal forces in a straight bar with plane loading, diagrams of internal forces and moments.
4. Differential relations between loads, shear forces and bending moments, differential conditions of equilibrium.
5. Plane beams and frames with rectangular broken centre line, calculation of reactions in constraints, diagrams of internal forces.
6. Plane skew beam, continuous load of skew beam, plane beam with broken centre line and skew bars, reactions and diagrams of internal forces and moments.
7. Static analysis of plane systems of bodies composed of mass points and of rigid plates, static and kinematic determination. General method of solution of plane systems.
8. Three-hinged broken beam without and with a tie bar, Gerber’s beam, reactions and internal forces diagrams.
9. Quadratic and deviation moments of inertia, Steiner’s theorem, principal axes of inertia of cross-sections, radius of inertia.
10. Plane bar systems, static and kinematic determination. Calculation of axial forces. The off-joints loads.
11. Space systems of forces. Constraints and reactions of rigid body in space, calculation of reactions in constraints.
12. Straight bar with space loading, space cantilever beam with rectangular broken centre line, reactions and diagrams of internal forces and moments.
13. Space beam with broken centre line, reactions, diagrams of internal forces and moments.

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The students will be acquainting with: (i) Reactions and internal forces of the plane static determinate structures, (ii) centroid and second order moments of cross-section.

Extent and forms are specified by guarantor’s regulation updated for every academic year.

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39 hours, compulsory

1. Moment of force to a point, pair of forces. Concurrent system of forces in plane, general system of forces in plane. 2. System of parallel forces in plane and its static centre. Static centre of plane composed shapes. 3. Calculation of reactions of simple straight, angled and lattice beams loaded by solitary forces and moments, continuous loading. 4. Calculation of axial forces in members of planar lattice girders by the joint method. 5. Calculation of axial forces in members of planar lattice girders by the intersecting method. 6. Straight planar statically determined beams and brackets with simple load, reactions and diagrams of internal forces. 7. Plane straight beams loaded with any uniform load, calculation of reactions in bonds, calculation and drawing of internal force diagrams. The first control test - calculation of the reactions of a planar beam or axial force in the bars of a lattice structure by the intersecting method. (10 minute test) 8. Plane straight beams loaded by any combination of loads with continuous linear load, calculation of reactions in constraints, calculation and plotting of internal force diagrams. 9. Plane rectangular angled beams and brackets loaded with any load, including uniformly continuous and linear, reactions and diagrams of internal forces and moments. 10. Plane inclined beam, decomposition of inclined continuous load, reactions and diagrams of internal forces and moments. Second control test - a planar straight beam loaded with a simple combination of a solitary force, moment and a uniform continuous load. (15 minute test) 11. Plane inclined beam with overhanging end, with continuous load, forces and moments, reactions and diagrams of internal forces and moments. 12. Plane angled beam with inclined members, reactions and diagrams of internal forces and moments. 13. Three-joint angled beam with and without rod, reactions and diagrams of internal forces and moments. Third inspection test - planar angled beam with inclined bar with continuous load. (test for 20 minutes). 14. Gerber beam. Calculation of reactions and diagrams of internal forces and moments. 15. Compound beam systems of various types. Calculation of reactions and diagrams of internal forces and moments. 16. Center of gravity, quadratic and deviation moments of plane compound shapes, application of Steiner's theorem. 17. Main quadratic moments - numerical and graphical solutions. Radii of inertia, ellipse of inertia. 18. Spatially stressed straight bar and rectangular spatially angled bracket or beam - reactions and courses of internal forces. Credit test - planar composite beam system loaded with any load (test for 40 minutes). 19. Control of fulfillment of obligations and event. test correction. Reserve. Repetition of a composite beam system. Credit.