000018563 001__ 18563
000018563 005__ 20170118182228.0
000018563 04107 $$aeng
000018563 046__ $$k2017-01-09
000018563 100__ $$aSegawa, Yuto
000018563 24500 $$aSeismic Performance of Actual Members Retrofitted With Epoxy Resin Injection

000018563 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018563 260__ $$b
000018563 506__ $$arestricted
000018563 520__ $$2eng$$aTwo beams and one column were taken from a primary school building that was constructed in 1961. Judging from the unit weight of the concrete it was estimated that the members were made of lightweight concrete. The obtained actual members were subjected to reversal loadings in order to investigate the effectiveness of the retrofitting method with epoxy resin. All test members were designed as the shear failure type based on the specifications of the Seismic Evaluation Standard of Japan. One of the beams was repaired with the epoxy resin injection method because honeycombs and cold joints in the concrete were observed. The column damaged by the first loading was also repaired using the same method as the beam. Shear and flexural cracks occurred during the early stage of loading and the strengths rapidly decreased at deflection angle R=1/100rad~1/200rad in all members. Although the crack patterns of the retrofitted members were similar to the members without epoxy resin injection, the maximum strength of the retrofitted members increased to 1.3~1.6 times that of the members without epoxy resin injection. The validity of the empirical equations for shear cracking and shear strength is discussed considering the light weight concrete, the low strength concrete, and the epoxy resin injection.

000018563 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018563 653__ $$aactual member, existing RC building, seismic performance, lightweight concrete, shear strength

000018563 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018563 720__ $$aSegawa, Yuto$$iAraki, Hideo
000018563 8560_ $$ffischerc@itam.cas.cz
000018563 8564_ $$s858847$$uhttps://invenio.itam.cas.cz/record/18563/files/1706.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1706.
000018563 962__ $$r16048
000018563 980__ $$aPAPER