SE 201A Lecture Notes - Lecture 1: Modulus Guitars, Energy Principles In Structural Mechanics, Kinematics
11 Apr 2016
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Problem statement for structural analysis: given: a model structure with a defined geometry and material properties subjected to loads. P1: find: complete solution for structure, external forces reactions, internal member forces bending moments and axial forces along members, internal member deformations curvature and strains, external displacements translations and rotations of joints. Lecture 1 : introduction to course and relation to previous courses. Internal force release hinge moment release shear release. Composed of slender members connected at joints. Members assumed to be pin- connected at ends. Analysis only considers axial forces (k. martini) Simple support: course will consider analysis of 2-d planar structural models composed of truss and beam elements. These are simplified models that can be representative of real structures: loads are assumed to be applied statically equilibrium must be satisfied between loads and member internal (section) forces, different loads considered. We will not consider shear or torsional deformations in detail. Deflections in beams: determine deflections in determinate structures.
