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@PHDTHESIS{Piscini:835390,
author = {Piscini, Andrea},
othercontributors = {Salvatore, Walter and Hoffmeister, Benno},
title = {{P}assing-through tubular column joints for steel and
composite constructions made by laser cutting technology},
school = {Rheinisch-Westfälische Technische Hochschule Aachen},
type = {Dissertation},
address = {Aachen},
publisher = {RWTH Aachen University},
reportid = {RWTH-2021-10501},
pages = {1 Online-Ressource : Illustrationen, Diagramme},
year = {2020},
note = {Cotutelle-Dissertation. - Veröffentlicht auf dem
Publikationsserver der RWTH Aachen University 2021;
Dissertation, Rheinisch-Westfälische Technische Hochschule
Aachen, 2020. - Dissertation, University of Florence, 2020},
abstract = {In steel moment-resisting frames, tubular columns have many
structural and architectural advantages over open-section
columns. Tubes are in fact particularly recommended for
structural elements subjected to compression and bending
forces in all directions, thanks to their higher radius of
gyration and the axial-symmetric distribution of their
mechanical properties. Therefore, the use of hollow profiles
for the realization of columns can lead to a reduction of
the total costs and furthermore to simplifications in the
realization process of steel-concrete composite structures.
However, the difficulties in realizing tubular column joints
adopting open I-section beams, the most commonly used all
around the world, severely reduce the use of tubular
columns. Nowadays, beam-to-tubular-column steel and
composite joints are commonly realized in two main ways: i)
the connection is made by directly welding the beams or the
beam stub to the wall of the steel tube; ii) supplemental
plates are used to connect the beams to the circular column.
Both ways have many disadvantages: the direct connection is
the most convenient solution in terms of rapidity and
easiness of fabrication but the performance of the joint is
strongly limited by significant local distortions of the
tube wall near the girder flanges; additional elements can
assure a more effective transfer of the stresses from the
beam flanges to the column wall or from the flanges of one
beam directly to the beam placed on the opposite side, but
their use implies a discontinuity in the column and requires
extensive welding to reconnect the column pieces. To
overcome these issues, innovative solutions with continuous
passing-through elements inside the column were studied in
the past years, highlighting several advantages from a
mechanical point of view. Indeed, the continuous elements
can pass by slots of limited size made on the column wall,
without requiring the complete discontinuity of the column
itself and the joint requires less cutting and welding
operations, resulting in lower overall cost and better
mechanical behavior. However, despite all the advantages,
many problems arise from the fabrication and constructional
points of view, limiting the effective performance of the
joints. One of the solutions to overcome the difficulties in
the fabrication and constructional processes of this joint
typology lies in the application of modern Laser Cutting
Technology to steel and composite structures. Several issues
were studied in the present thesis, with both numerical and
experimental tests, to define an appropriate fabrication
process and to better characterize the mechanical behavior
of the tubular column connections with passing-through
elements, under vertical and horizontal loading conditions.},
cin = {311710},
ddc = {624},
cid = {$I:(DE-82)311710_20140620$},
typ = {PUB:(DE-HGF)11},
doi = {10.18154/RWTH-2021-10501},
url = {https://publications.rwth-aachen.de/record/835390},
}
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