http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오늘 본 자료
서수연 ( Seo Soo-yeon ),윤승조 ( Yoon Seung-joe ),최기봉 ( Choi Ki-bong ),이수민 ( Lee Su-min ),이동화 ( Lee Dong-hwa ) 한국구조물진단유지관리공학회 2007 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.11 No.2
Various purposes and capacity are needed in order to maintain functions of a building during the using period. But a natural disaster brings a drop of capacity of buildings regardless of human’s effort. Recently, importance of countermeasure in regard to the occurred earthquake is emphasized by bigger shape of earthquake and diversification of earthquake type little by little in the future. The object of this paper is the evaluation of structural capacity of building damaged by disaster. In order to describe the damage, three frame building, five, ten and fifteen story buildings are designed to have reduced column strength in first floor. And static push over analysis for those buildings with various ground conditions is carried out by using RAM PERFORM program. From the analysis, it was shown that seismic capacity of frame building closely depended on the ground condition. The loss of structural capacity of buildings was more influenced by strength reduction of reinforcement than by that of concrete.
서수연(Seo, Soo-Yeon),전수민(Jeon, Su-Min) 대한건축학회 2017 大韓建築學會論文集 : 構造系 Vol.33 No.1
Recently, a research related to development of form-block has been performed to improve the effectiveness in both construction of new building and retrofit of old building. From several previous prism tests on the form-block wall (FBW), it has been revealed that the concrete filled in the void of the form-block expands to horizontal direction when the compressive load increases and the failure of FBW at ultimate load is governed by the shear failure of web of form-block. This failure brings on weak resistance of wall. In this manner, this paper aimed to verify the compressive strength of the form-block reinforced with steel fiber through both compressive and prism test on the block. In addition, the suitability of previous equation to predict the prism strength of form-block is evaluated. Main parameters in the experiment are type of steel fiber, strength of grout and mortar, and strength of base mortar. As a result, the compressive strength of block and prism strength were improved by adding 1% of steel fiber into block. The ductility of block with steel fiber was improved but was not in prism test. The prism strength of the form-block wall can be properly predicted by using the AIJ equation.