TY  - THES
A1  - Masarira, Alvin
T1  - Beitrag zu Ermittlung der Gesamtstabilitaet von Hallenrahmen unter Beruecksichtigung der konstruktiven Gestaltung von Rahmenecken
T1  - The Stability of Steel Frames under the Consideration of the Influence of the Design and Construction of Frame Joints
N2  - Die in der Praxis häufig vorkommenden Rahmenecken werden zur Ermittlung ihrer Wölb- und Drehsteifigkeiten untersucht. Die Kontinui- tätsbedingungen dafür werden formuliert. Mit Finite- Schalenelementen werden Gesamthallenrahmen mit unterschiedlichen Abmessungen, Profilen, Dachneigungen, Stabilisierungen und Rahmeneck- formen modelliert. Dadurch werden die Auswirkungen und Einflüsse der Rahmeneckkonstruktion auf die Stabilität des Tragwerkes untersucht. Durch vergleichende Untersuchungen mit dem Ersatzstabverfahren nach der DIN 18800 werden für jede Rahmenecke realitätsnahe ßo- und ßz Werte vorgeschlagen.
N2  - Common joint types are investigated in order to determine their warping and bending restraints. Continuity conditions for warping of the joints are formulated. Using an FE-Shellmodel whole frames with different dimensions, section profiles, roof slopes, bracing systems and joints are designed and calculated. The objective is to detremine the effect of joint construction on the critical loads for flexural-torsional buckling of the system. Through comparative investigations of the critical loads using the equivalent member method of the German standards for steel structures, it is possible to assign to each joint type relatively accurate ßo- and ßz coefficients.
KW  - Rahmentragwerk
KW  - Rahmenecke
KW  - Profilstahl
KW  - Tragfähigkeit
KW  - Stabilität
KW  - Stahlbau
KW  - Woelbsteifigkeit
KW  - Knotenmodell
KW  - Gabellagerung
KW  - Bimomente
KW  - Kontinuitaetsbedingungen
KW  - Steel frames
KW  - Joint type
KW  - Warping stiffness
KW  - Warping moments
KW  - Stability behavior
Y1  - 1997
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20040311-712
ER  - 
TY  - JOUR
A1  - Faridmehr, Iman
A1  - Tahir, Mamood Md.
A1  - Lahmer, Tom
T1  - Classification System for Semi-Rigid Beam-to-Column Connections
JF  - LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES 11
N2  - The current study attempts to recognise an adequate classification for a semi-rigid beam-to-column connection by investigating strength, stiffness and ductility. For this purpose, an experimental test was carried out to investigate the moment-rotation (M-theta) features of flush end-plate (FEP) connections including variable parameters like size and number of bolts, thickness of end-plate, and finally, size of beams and columns. The initial elastic stiffness and ultimate moment capacity of connections were determined by an extensive analytical procedure from the proposed method prescribed by ANSI/AISC 360-10, and Eurocode 3 Part 1-8 specifications. The behaviour of beams with partially restrained or semi-rigid connections were also studied by incorporating classical analysis methods. The results confirmed that thickness of the column flange and end-plate substantially govern over the initial rotational stiffness of of flush end-plate connections. The results also clearly showed that EC3 provided a more reliable classification index for flush end-plate (FEP) connections. The findings from this study make significant contributions to the current literature as the actual response characteristics of such connections are non-linear. Therefore, such semirigid behaviour should be used to for an analysis and design method.
KW  - Tragfähigkeit
KW  - Stütze
KW  - Träger
KW  - Beam-to-column connection; semi-rigid; flush end-plate connection; moment-rotation curve
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20170401-30988
SP  - 2152
EP  - 2175
ER  -