000019450 001__ 19450
000019450 005__ 20170118182319.0
000019450 04107 $$aeng
000019450 046__ $$k2017-01-09
000019450 100__ $$aTatsumi, Nobuhiko
000019450 24500 $$aEffects of Connection Detail on Structural Behavior of Steel Braced Frames

000019450 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019450 260__ $$b
000019450 506__ $$arestricted
000019450 520__ $$2eng$$aBraced frame structures are used for school gymnasiums and factories with large space. It is very important building which will be used as emergency public shelters in time of disaster. In braced frames, generally the columns are placed along their weak axis for wide-flange steel cross sections and the beam web is connected through gusset plates on the column web by using high strength bolts. These beam-to-column connections are assumed as a pin connection at the stage of seismic design, and seismic performance of the braced frames depends on the strength of the tension-only brace. Connection of these components is constructed by a general design practice, although its detail is very complex. In other words, the effect of various connection details on the seismic performance of the braced frame is unclear at the stage of seismic design. This paper focuses on differences in connection details, and describes their effects on structural behaviors of braced frame structures. The cyclic loading tests of 2 story-1 bay full-scale braced frames with various connections were carried out. The main parameters are: a connection eccentricity of brace, details at beam-end connection and presence of concrete slabs. Connection eccentricity of brace is selected in order to investigate the additional stress on the framing components. Details at beam-end connection are adopted for the purpose of verifying the influence on the seismic performance of braced frames. Concrete slabs on beams are prepared to investigate the effect on strength of a braced frame. The test results can be summarized as follows: (1) connection eccentricity of brace led to a decrease in the maximum strength and an elastic stiffness of the braced frame; (2) connection detail with narrow pitch of bolts or thin beam web caused local buckling at the beam web; (3) a presence of concrete slabs on beams resulted in increase in lateral strength of the beam-column subassemblies.

000019450 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019450 653__ $$abraced frame; connection eccentricity of brace; maximum strength; elastic stiffness; deformation capacity

000019450 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019450 720__ $$aTatsumi, Nobuhiko$$iKishiki, Shoichi$$iHasegawa, Takashi$$iYamada, Satoshi
000019450 8560_ $$ffischerc@itam.cas.cz
000019450 8564_ $$s825237$$uhttps://invenio.itam.cas.cz/record/19450/files/3645.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3645.
000019450 962__ $$r16048
000019450 980__ $$aPAPER