Methods of Earthquake-Resistant Design based on Displacement Analysis – Guidelines for the Application
One day seminar of the Society of Civil Engineers, Municipality of Athens
October 2001
• The influence of soil quality on the spectrum … • The DCM method (FEMA 273/356) applies to soft soils … • Soft floor mechanism is a major cause of collapse … • The final decision on the type and extent of Strengthening can be obtained …
Static and Antiseismic Design of Steel Structures – Detailed Design of Steel Structures in 3D Model, Shop and Fabrication Drawings
Ministry of Public Works / NGDE / DMEO
April 23-24, 2001
• An example of industrial building – multi-storey building – space truss • Dimensioning of the columns • Selection of the actions for which the dimensioning will take place • Selection of columns, buckling lengths and grouping of cross sections • Dimensioning of trusses • Selection of the actions for which the dimensioning will take place • Choice of trusses, buckling lengths and grouping of cross sections
• Automatic generation and updating of plan views, sections, views and shop drawings in every modification of the spatial model • AutoCAD 14 Design Environment • ARX Object-Oriented Technology (beams, columns, plates, bolts, anchors …) • Joints, connections, welds, frames • Data exchange with STATIK-3 • Bill of quantities, bolt impact tests
Methods for the Design of Building Reinforcement against Earthquake based on Displacement
Seminar of the Greek Earthquake Planning and Protection Organization (EPPO)
Athens, April 2001
• Non-linear analysis of the building as a space frame by the method of plastic hinges • A bi-linear approximation to the force-displacement curve of the building • Simulation of multi- with single- degree of freedom elastoplastic system – factors ao , Co • Calculation of maximum displacement through time integration of a real earthquake accelerogram (A. Method) • Calculation of maximum displacement through Response Spectrum in Axes of displacements – eigenperiods with a coefficient C1 (B. Method) • Performance controls: Plastic rotations, Shear failures, shear deformation of infill walls, possible collapse …
Earthquake-Resistant Design of Existing and New Structures through the Push Over Method
Seminar of the Greek Ministry of the Environment, Physical Planning and Public Works
Athens, 14-15 March 2001
• Resilience of existing structures against earthquake • Performance analysis for more earthquake levels • Classification criteria for structural performance based on damage • Steps to control the behavior of existing structures • Steps to design new structures based on intended behavior • Seismic Risk Analysis for the assessment of the degree of strengthening • Building strengthening applications by addition of walls and cores
Design of Connections of Steel Structures
Ministry of Public Works / NGDE / DMEO
December 12, 2000
• Single angle shear connection • Double Angle shear connection • Fin connection with Head plate • Splice • Connecting to a Gusset plate • Beam to column connection • End plate connection • Bidirectional shear connection with head plate-both sides …
Applying the Push Over Analysis Method to Building and Bridge Design
Ministry of Public Works / NGDE / DMEO
June 12, 2000
• Displacements (stiffness) • Strength • Ductility (seismic energy absorption capacity) • Avoidance of soft story • Plastic rotations • Shear failure • Compressive failure • Lateral stability • Plastic deformation mechanism • Behavior factor q based on the actual resistance of the individual members and the ductility they possess
Statik-3P Push Over
Athens-Thessaloniki, 2000
• The recent earthquake of Athens • Dynamic Loads in elastoplastic systems • Implied dynamic movement on the supports • Historical development – Elastic design • Historical Evolution – Capacity Design • Historical Evolution – Push Over • Representation of the spectrum in a Force-Displacement system • Comparison with the Actual Code regarding the Behavior Factor q …
Solving Geotechnical Problems Using Computer and Calculation Examples in Bridges
Ministry of Public Works / NGDE / DMEO
June 28-30, 1999
• Stability checks • Sheetpile walls, Soldier pile walls • Retaining Walls • Bridges and Loads • Dimensioning / Checks • Special applications of bridges • Earthquake-Resistant Design
Static and Antiseismic Design of Steel Structures – Detailed Design of Steel Structures in 3D Model, Shop and Fabrication Drawings
Ministry of Public Works / NGDE / DMEO
May 19, 1999
• An example of industrial building – multi-storey building – space truss • Dimensioning of the columns • Selection of the actions for which the dimensioning will take place • Selection of columns, buckling lengths and grouping of cross sections • Dimensioning of trusses • Selection of the actions for which the dimensioning will take place • Choice of trusses, buckling lengths and grouping of cross sections
• Automatic generation and updating of plan views, sections, views and shop drawings in every modification of the spatial model • AutoCAD 14 Design Environment • ARX Object-Oriented Technology (beams, columns, plates, bolts, anchors …) • Joints, connections, welds, frames • Data exchange with STATIK-3 • Bill of quantities, bolt impact tests
Static and Antiseismic Design of Steel Structures according to Eurocodes EC3, EC1
Ministry of Public Works / NGDE / DMEO
December 16, 1998
• Geometry and loads • Modification of the geometry of the model • Definition of structural systems through the subsystems • The design action menu • Characterization of loads • Guidelines on combinations of failure limit states • The menu of seismic actions • Introduction of seismological data and building behavior checks