# Computer Lab - Analysis and Design of Structures

## Course Description:

The aim οf the course is to familiarize the students in a comprehensive manner to the topic of applied structural analysis and design using computational means.

• Semester 7

### Prerequisite Knowledge

Matrix Structural Analysis - 1D Finite Elements, Reinforced Concrete I, Steel Structures I, Earthquake design I.

### Course Units

# Title Description Hours
1 Laboratory of Structural Analysis and Antiseismic Research Finite elements and degrees of freedom. Numerical behavior of line and area finite elements (FE). Local axes and sign of internal forces and stresses. Basic structure of a FE computer analysis code. Line beam-column models with eccentricity of horizontal and vertical members using three-dimensional rigid offsets. Modeling of shear walls using beam-column elements with rigid offsets and models of multi storey coupled shear walls with equivalent frames. 1Χ3=3
2 Laboratory of Structural Analysis and Antiseismic Research Modeling of diaphragms. Models of open section shear wall cores using beam-column elements. Models accounting for shear and torsional section deformations. Significance of the location of cores in plan. 1Χ3=3
3 Laboratory of Structural Analysis and Antiseismic Research Envelopes of internal forces and deformations under different support conditions in multi storey buildings with or without a basement. Relative rigidities of beams and columns. 1Χ3=3
4 Laboratory of Reinforced Concrete Models of reinforced concrete (RC) members and structures. Linear and nonlinear analysis methods following EC2. Cracking, yielding, failure. Step by step section analysis to failure. Resistance and stiffness interaction with axial load. 1Χ3=3
5 Laboratory of Reinforced Concrete Simple models for preliminary design and sizing, for use inn SLS and ULS limit states. Beams (T beams, variable section beams, prestressed beams), equivalent frames for flat slab frame analysis, axially loaded elements with 2nd order effects. 1Χ3=3
6 Laboratory of Reinforced Concrete Modeling of large lightly reinforced concrete walls. Modeling of foundations (footings, mat foundation, piles). 1Χ3=3
7 Laboratory of Reinforced Concrete Design using the Strut and Tie model. Applications in the design of a deep beam and a multistorey wall with openings. 1Χ3=3
8 Laboratory of Steel Structures Simple models of steel structures. FE types for modeling of different members, mesh density, section orientation. Buckling length and second order effect sensitivity. Modeling of connections and eccentricities. 1Χ3=3
9 Laboratory of Steel Structures Modeling of the compression braces in steel structures. Lateral bracing. Lateral and local buckling. Modeling of bridge cranes. Modeling of composite structures with steel beams and concrete slabs. 1Χ3=3
10 Laboratory of Steel Structures Interrelation of the method of modeling, the method of analysis and the design checks of steel structures. Application examples. 1Χ3=3
11 Laboratory of Earthquake Engineering Modal building analyses: modeling for the establishment of symmetric and antisymmetric mode shapes. Examples of structural models using line and area FE. Modeling of stiffness, inertia and damping. 1Χ3=3
12 Laboratory of Earthquake Engineering Development of models suitable for seismic loading analysis. Methods based on dynamic analysis: uses, differences, advantages and disadvantages. Application examples for structures modeled using line, area and three-dimensional FE and combinations of these. 1Χ3=3
13 Laboratory of Earthquake Engineering Flexible and rigid diaphragm models for seismic actions. Soil structure modeling. 1Χ3=3

### Learning Objectives

After successful completion of the course, the students will be able to:

1. Develop a numerical model of the structure
2. Select specific member requirements depending on the structural material and the mechanical response, in accordance with the design requirements.
3. Be able to evaluate the reliability of the model and perform more specific detailed model refinements.

### Teaching Methods

 Teaching methods Board, Powerpoint presentations and primarily student workshop tutorials at the PC Lab Board, Powerpoint presentations, PCLab Laboratories PC Lab (90+30 workstation positions) YES Individual student exercises on the PC. Assignments (Project Reports)

### Student Assessment

• Assignments (projects, reports): 100%

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