Lifetime-Oriented Structural Design Concepts- P20 ppt
Lifetime-Oriented Structural Design Concepts- P20 ppt
... reported here.
4.5 Optimization and Design
Authored by Dietrich Hartmann
As demonstrated in Section 4.1.4 structural design problems can be trans-
formed into equivalent structural optimization problems ... aforemen-
tioned design variables, optimization criterion and constraints:
• design variables x
i
,i=1, 2, 3, ,n representing the vital parameters of
a structural system, con...
Lifetime-Oriented Structural Design Concepts- P4 pptx
... numbers N
T o
of lorries during the design life assumed for λ
2
= 1.0. Therefore the factor
differs for structures and structural members with different materials (e.g.
structural steel, reinforcement, ... traffic category 2 in Table 3.14.
Furthermore for the design life a reference value T
so
= 100 years was assumed.
In case of another traffic category or design life the damage equivalen...
Lifetime-Oriented Structural Design Concepts- P5 ppt
... the design as long as the train speed is sufficiently below the
critical. If however the critical speed is lower than the maximal track speed,
resonant amplification will provide the dominant design ... Pattern for Static and Dynamic Design Calculations
The following expression summarizes the observed effects and may be applied
to static and in particular to dynamic design calculations:
q...
Lifetime-Oriented Structural Design Concepts- P7 pptx
... loading
(Subsections 3.2.1.2 and (Subsections 3.2.2) and structural experiments of
steel-concrete composite structures (Subsection 3.2.3).
3.2.1 Laboratory Testing of Structural Materials
Authored by Otto T. ... envi-
ronmentally induced degradation mechanisms, which led to a better under-
standing of the microstructural mechanisms and to analysis tools to simulate
the relevant processes....
Lifetime-Oriented Structural Design Concepts- P16 pptx
... the
continuum and the structural level. This can be explained as follows. Using one
element over the thickness practically means to work with a one-directior shell
theory. We are then at the structural ... contrast to many earlier approaches we do not have to
neglect the stress in thickness direction at the structural level.
[773], [774] and [776] propose an implicit residual error esti...
Lifetime-Oriented Structural Design Concepts- P20 potx
... aforemen-
tioned design variables, optimization criterion and constraints:
• design variables x
i
,i=1, 2, 3, ,n representing the vital parameters of
a structural system, concentrated in the design vector ... reported here.
4.5 Optimization and Design
Authored by Dietrich Hartmann
As demonstrated in Section 4.1.4 structural design problems can be trans-
formed into equivalent s...
Lifetime-Oriented Structural Design Concepts- P25 ppt
... Improved numerical dissipation for
the time integration algorithms in structural dynamics. Earthquake Engineer-
ing and Structural Dynamics 5, 283–292 (1977)
369. Hillerborg, A., Mod´eer, M., ... for reliable finite element
modelling and fault diagnosis of structural components used in nuclear plants.
Nuclear Engineering and Design 223, 11–23 (2003)
754. Sinha, J.K., Friswell, M.I., Ed...
Lifetime-Oriented Structural Design Concepts- P2 ppt
... needed.
For practical design it is sufficient to apply equivalent static gust wind loads.
1.5 Fundamentals of Lifetime-Oriented Design 7
lifetimes. The progress in lifetime-oriented design concepts can ... international harmonization of warranty law.
1.5 Fundamentals of Lifetime-Oriented Design
Authored by Friedhelm Stangenberg
Current structural design concepts are oriented t...
Lifetime-Oriented Structural Design Concepts- P4 ppt
... distributed
loads
single axle
infrequent design
situations
0,8 0,8 0,8
frequent design
situations
0,75 0,4 0,75
quasi permanent
design situations
0 0 0
bridge design. As mentioned above the load ... numbers N
T o
of lorries during the design life assumed for λ
2
= 1.0. Therefore the factor
differs for structures and structural members with different materials (e.g.
structura...
Lifetime-Oriented Structural Design Concepts- P6 ppt
... described phenomena under an undrained cyclic loading are
not well understood by the design engineer a non-appropriate design of the
foundation may be chosen. A more detailed discussion of the effect ... loading are maningfold. In a life time oriented
design all relevant influences and boundary conditions a soil may be exposed
to (depending in turn on the design solution) have to be kep...