000010479 001__ 10479
000010479 005__ 20141205155731.0
000010479 04107 $$aeng
000010479 046__ $$k2008-10-12
000010479 100__ $$aKawamoto, Takanori
000010479 24500 $$aBehavior of Precast CES Columns for Middle and Low-Rise Houses

000010479 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010479 260__ $$b
000010479 506__ $$arestricted
000010479 520__ $$2eng$$aConcrete Encased Steel (CES) structural system consisting of only fiber reinforced concrete (FRC) and encased steels only have been proposed by the authors as a new composite structural system, which is being investigated continuously with comprehensive studies to make it practical. A study on precast CES columns was carried out as a part of these studies. The purposes of this study are to investigate the seismic performance of precast CES columns for middle and low-rise houses and to obtain the fundamental data to construct the analytical models of the columns that applicable to pushover analysis to be used in the Calculation of Response and Limit Strength (CRLS), which is a new structural calculation method for buildings introduced in June 2000 by revising the Building Standard Law of Japan. The precast CES columns are constructed by connecting precast CES elements using high strength bolts and fiber reinforced mortar which is cast into the joint. The precast elements are manufactured by casting FRC over built-in steels. A total of three precast CES columns of about a half scale to the real structure were tested under constant axial load and lateral load reversals that simulated seismic loading. The variables investigated were the connection details between the elements and the compressive strength of FRC used for the precast elements. This paper outlines the structural testing and discusses the structural performance of the precast CES columns. The results shows that the flexural strength of the columns is developed by the yielding of the encased steel and the lateral deformation capacity reaches a maximum story drift angle, R of 0.05 radian. Moreover, the spalling of cover concrete does not occur even at the story drift angle of 0.05 radian because the FRC works effectively. It is also indicated that the ultimate flexural strength of the CES columns can be calculated by using the AIJ design formulas for SRC members and the shear versus lateral displacement response can be simulated by using the Takeda model.

000010479 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010479 653__ $$aComposite structures, Precast CES column, Fiber reinforced concrete, Experimental testing, Seismic performance

000010479 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010479 720__ $$aKawamoto, Takanori$$iKuramoto, Hiroshi$$iMatsui, Tomoya$$iFujimoto, Toshiaki$$iOsaki, Junji
000010479 8560_ $$ffischerc@itam.cas.cz
000010479 8564_ $$s610392$$uhttps://invenio.itam.cas.cz/record/10479/files/05-06-0078.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0078.
000010479 962__ $$r9324
000010479 980__ $$aPAPER