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Metnet Meeting February 2012
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Institute of Steel Structures RESEARCH and Development
Nicole Schillo
Metnet Meeting February 2012
RWTH Aachen – Institute of Steel Structures
Institute of Steel Structures, RWTH Aachen
• Professor
• Scientific Staff
• Visiting Scientists
• Non Scientific Staff
• Labourers
• Technical Employees
• Trainees
• Scientific Back Staff
1
24
0
5
6
4
1
30
Total: 71 Employees
Metnet Meeting February 2012
RWTH Aachen – Institute of Steel Structures
Laboratory of Steel Structures with Wind Tunnel
Testing field Hotbox – Climate Chamber Laboratory for Glass
Metnet Meeting February 2012
RWTH Aachen – Centre of Metallic Construction (zmb)
Institut für Bildsame Formgebung
1 Professor
35 Scientific Staff 20 Non-scientific Staff
Institut für Eisenhüttenkunde
1 Professor
49 Scientific Staff 45 Non-scientific Staff
Lehrstuhl für Stahlbau und
Leichtmetallbau
1 Professor
24 Scientific Staff 5 Non-scientific Staff
Institut für Oberflächentechnik
1 Professor
35 Scientific Staff 11 Non-Scientific
Staff
Institut für Kraftfahrwesen
1 Professor
63 Scientific Staff 40 Non-scientific Staff
Institut für Schweißtechnische Fertigungsverfahren
1 Professor
25 Scientific Staff 30 Non-scientific Staff
zmb 6 Professors
227 Scientific Staff 154 Non-scientific Staff
318 Students
Metnet Meeting February 2012
RWTH Aachen – Centre of Metallic Construction (zmb)
Laboratory at Centre of Metallic Construction (zmb)
CNC folding
equipment Coating unit Static and cyclic testing Servo-hydraulic
testing machine
Metnet Meeting February 2012
RWTH Aachen – Institute for Steel Structures
floor
ceiling water conduit
Numerical investigations
FEM Simulations (MARC, ANSYS, ABAQUS)
Multi Body Dynamic Simulations (MEPHISTO)
CFD Simulations (Phoenics)
Thermal Building Simulations (TRNSYS)
Daylight Simulations (ADELINE)
BEM Simulations
Metnet Meeting February 2012
RWTH Aachen – Institute of Steel Structures
Main Application Areas:
Steel Structures
Light Weight Structures
Wind Engineering
Structural Glazing and Bonding
Composite Structures
Building Physics
Head of Institute:
Prof. Dr.-Ing. Markus Feldmann
Metnet Meeting February 2012
Standardisation Software Development
• Eurocode 1- Basis of design and
actions on structures
• Eurocode 3 - Design of steel structures
• Eurocode 4 - Design of composite
steel and concrete structures
• Eurocode 8 - Design provisions for
earthquake resistance of structures
• Eurocode 9 -Design of aluminium alloy
structures
• Richtlinie für tragende Glasbauteile
• DASt-Richtlinie 009 - Choice of steel
grade
• ENV 1090 -Design
• CoP - Design of the Connection
• DYNACS
Dynamic non-linear analysis of
composite and steel structures
• MEPHISTO
Multibody systems with elastic
-plastic hinges and changeable
structure organisations
• Kanet
Design of canal networks
• Kamin
Design of steel chimneys
RWTH Aachen – Institute of Steel Structures
Metnet Meeting February 2012
RWTH Aachen – Structural Glazing
Stabilitätsuntersuchungen
Knicken und Biegedrillknicken
an Bauteilen aus Glas
IHK München: ambild/A. Müller
Glaspavillon Rheinbach
Stadtverwaltung St. Germain-en-Laye
Metnet Meeting February 2012
RWTH Aachen – Structural Glazing
14
Quality control of heat strengthened and fully tempered glass panels
– Use of Photoelasticity
Inhomogeneous
prestress
distribution
Homogeneous
prestress
distribution
Fracture pattern
Inhomogeneous
fracture pattern
Homogeneous
fracture pattern
Polarizing filter images
Metnet Meeting February 2012
AiF Project: “KLAX”, 2011 – 2013 (German research project)
“Simplified design approach for elastic bonded joints subjected to multiaxial stress states with respect to nonlinear material behavior”
RWTH Aachen – Bonding
Sukkah – Jüdisches Museum, Berlin Structural Sealant Glazing
Project partners: • RWTH Aachen, Institute of Steel Construction • University of Kaiserslautern, Workgroup Materials and Surface Technologies
Glasbauteil
elastische
Klebfuge
Rahmen
Belastungen
Glasbauteil
elastische
Klebfuge
Glasbauteilelastische
Klebfuge
Rahmen
Belastungen
• Aims / Objectives
– Development of basics design principles for complex
elastic-plastic adhesive joints applicable in practice
– Focus: multiaxial adhesive stress states of linear
bonded joints (SSG facades, solar panels)
Metnet Meeting February 2012
RWTH Aachen – Building Physics
Hot-Box Investigations
Infrared Analysis
Air-tightness Testing
Numerical Investigations
Outside
Inside
Moisture
Wall
HEB 200
Metnet Meeting February 2012
RWTH Aachen – Building Physics
Sustainability of steel construction (Examples)
• Certification of buildings according DGNB
• Assessment and scientific studies concerning specific aspects of sustainability (Life cycle assessment depending on construction material and design of structure)
Metnet Meeting February 2012
RFCS Project: “HISTWIN2”, 2011 – 2014
“HIgh Steel tubular Towers for WINd turbines”
• Aims / Objectives
– development of an high steel tubular tower
made of modular segments to reach hub hights
of 100 m and higher
– developement of foundations with
micropiles
RWTH Aachen – Steel Structures
Metnet Meeting February 2012
RFCS Project: “ADBLAST”, 2010 – 2013
“ADvanced design methods for BLAST loaded steel structures”
• Aims / Objectives
– Design guidance for blast resistance of typical
industrial buildings
– Blast tests on key non-structural and structural
assemblages
– Dynamic material
characterisation
– comparative static tests
RWTH Aachen – Steel Structures
Metnet Meeting February 2012
RFCS Project: “BriFaG”, 2008 – 2011
“Bridge Fatigue Guidance”
• Aims / Objectives
– Development of bridge fatigue guidance for
the sustainable design and assessment of
steel bridges subjected to fatigue
– systematic investigation on the fatigue
strength of fillet welds loaded multi-axial
(toe cracking, FAT 71)
– in-plane multi-axial fatigue tests
RWTH Aachen – Steel Structures
Pz
Py
Metnet Meeting February 2012
RFCS Project: “BriFaG”, 2008 – 2011
• Aims / Objectives
– Investigation of principale stress ranges taken
from the strain history measures with
strain gauges
– Determination of rotation of principal stress
angle due to cracking
RWTH Aachen – Steel Structures
crack
initiation
fatigue failure
40 mm
Metnet Meeting February 2012
RFCS Project: “BriFaG”, 2008 – 2011
• Outcome
– EC3 gives safe-sided results for the tests performed
– The amount of shear stress Δτ and its result on the fatigue life under
combined loading rather plays a minor role
RWTH Aachen – Steel Structures
Metnet Meeting February 2012
RFCS Project: “ELEM”, 2008 – 2011
“Composite Bridges with Prefabricated Decks”
• Aims / Objectives
― Elaboration of cost effective structures with short
erection times
RWTH Aachen – Composite Structures
Image size: 11,29 cm x 10,79 cm
Metnet Meeting February 2012
RFCS Project: “ELEM”, 2008 – 2011
“Composite Bridges with Prefabricated Decks”
• Aims / Objectives
― Elaboration of cost effective structures with short
erection times
― Tests on the effective width of composite bridges using
full depth prefabricated deck elements and „dry joints“
RWTH Aachen – Composite Structures
Metnet Meeting February 2012
RFCS Project: “EcoBridge”, 2010 – 2013
“Demonstration of ECOnomical BRIDGE solutions based on innovative composite dowels and integrated abutments”
RWTH Aachen – Composite Structures
Metnet Meeting February 2012
RFCS Project: “EcoBridge”, 2010 – 2013
• Aims / Objectives
– Measuring of strains in compositite dowels with
clothoidal shape
– Measuring of displacement of rail support point
– Measuring of relaxation of pre-tensioned bolts
– Measuring of temperature
RWTH Aachen – Composite Structures
Strain Gauges
Displacement
Transducer
Metnet Meeting February 2012
Architecture:
Calatrava
New Main Train Station Liège Niedersachsen Stadium, Hanover
RWTH Aachen – Wind Engineering: Wind tunnel simulations
Wind Engineering: Wind Tunnel Investigations
• Measurements on external and internal pressures (incl. snow effects)
• Investigation of the dynamic structural behavior due to wind loads
Metnet Meeting February 2012
RWTH Aachen – Wind Engineering: Wind load concepts and structural responses
Wind tunnel measurements
for load standardisation
Wind load expertises
for special structures
Measurements under
natural wind conditions
Modelling and
simulation
Stadium of the 1. FSV Mainz 05 New load concepts for the global design of
industrial buildings
Permeable Claddings
Artificial wind field and dynamic
response of a prestressed membrane
cladding element