• 제목/요약/키워드: Support Condition

검색결과 2,065건 처리시간 0.033초

4차로 광폭터널의 계측결과를 이용한 암반등급에 따른 지보수준 평가 (The Evaluation on the Type of Support Element by Field Test Data in 4-lane Wide Road Tunnel)

  • 도종남;김연중;이찬복;천병식
    • 한국지반환경공학회 논문집
    • /
    • 제13권1호
    • /
    • pp.15-20
    • /
    • 2012
  • 본 논문에서는 서울OO고속도로 건설공사 노선에 있는 2곳의 광폭 4차로 터널의 계측항목별 측정결과를 정리한 계측분석 자료를 근거로 하여 터널굴착에 따른 주변지반의 움직임과 각 지보부재의 효과를 파악하고 공사의 안전성 및 경제성을 재평가하고자 하였다. 터널 노선에 대한 사전 지질조사 및 주변 구조물 현황을 조사 분석하여 터널굴착에 따른 주변 지반, 각 동바리 부재의 변위, 응력의 변화를 파악하여 설계, 시공의 안전성과 경제성을 확인하고, 또한 설계 기준값과 계측치를 비교 분석하여 실제 현장조건에 맞는 지보 수준을 평가하였다. 평가 결과 대부분의 구간에서 기준치(30mm)이하의 변형결과를 보였고 암반등급에 따라 시공된 지보재의 수준이 과대하게 산정되었음을 알 수 있었다. 따라서 공사의 효율성 및 경제성의 측면에서 고려해볼 때, 향후 지보재의 적정수준에 대한 발전된 연구가 진행되어야할 필요가 있다고 판단된다.

미생물 혼입 하이드로젤 지지체 첨가에 따른 자기치유 콘크리트의 물성 변화 (Physical Properties of Self-healing Concrete Mixed with Hydrogel Carrier of Microorganism)

  • 추인엽;우진호;우상균;이병재
    • 한국구조물진단유지관리공학회 논문집
    • /
    • 제22권6호
    • /
    • pp.24-29
    • /
    • 2018
  • 콘크리트 자기치유를 목적으로 미생물 혼입 하이드로젤 지지체 첨가에 따른 콘크리트의 특성을 검토하였다. 자기치유 콘크리트의 슬럼프 측정결과, 모든 배합조건에서 목표슬럼프를 만족하였으나, 하이드로젤 지지체의 혼입량 증가에 따라 슬럼프 감소가 있었다. 하이드로젤 지지체 혼입에 따른 공극률의 변화는 미미하였다. 자기치유 콘크리트의 압축강도 평가결과, 하이드로젤 지지체의 혼입은 강도에 영향을 미치지 않았다. 하지만 동일 배합조건하에서 시험체간의 분산값이 하이드로젤 지지체 혼입량 증가에 따라 증가하는 경향을 나타내었다. 하이드로젤 지지체의 혼입에 따른 자기치유 콘크리트의 투수시험 결과, HC-B1.5 배합의 경우 최대 45.6%의 투수계수 회복율을 나타내어 하이드로젤 지지체의 혼입이 투수계수 감소에 효과가 높은 것으로 확인되었다.

응급실 환자의 간호 요구도 및 만족도 분석 (A study of Nursing care need and the patient's satisfaction level of the nursing care in the emergency department)

  • 박영숙;윤정원
    • 한국응급구조학회지
    • /
    • 제13권1호
    • /
    • pp.73-85
    • /
    • 2009
  • Purpose : The purpose of this study was to analyze the nursing care needs which can properly cope with patients' needs in emergency room, and grasp the patients' satisfaction level which can assess the care quality. It was aimed to check the level of today's care and provide basic data for care performance and care standard. Method : Data were collected from 192 patients in general hospitals in Daegu. The results are as followed. Results : First, the result of analysis conducted on the degree of overall patients' need for nursing care revealed that the need for nursing information (4.21+57) was the highest, followed by the order of information of patient's condition (4.05+53), emotional support (3.98+47), and nursing participation (3.65+54). Secondly, our study revealed that there was a significant negative correlat interrelation between care need and care satisfaction (r=.516, p<.01), indicating the higher the overall emergency room patients' nursing care need, treatment and nursing information, patient's condition, emotional support and nursing participation were, the lower the actual feeling of their satisfaction turned out. Conclusion : The study shows that treatment and nursing related information is the most highly needed and the patients' satisfaction level relies on actual care participation.

  • PDF

정적 반복하중을 받는 노후된 철근콘크리트 T형교의 파괴해석 (Failure Analysis of Deteriorated Reinforced Concrete T-Girder Bridge Subject to Cyclic Loading)

  • 송하원;송하원;변근주
    • 콘크리트학회지
    • /
    • 제10권6호
    • /
    • pp.291-301
    • /
    • 1998
  • 본 논문은 공용년수가 오래되어 노후화된 철근콘크리트 교량의 파괴가지의 거동에 예측하기 위한 비선형 파괴해석 모델링 기법이 개발에 관한 연구이다. 본 논문에서는 비선형파괴해석을 위해철근부식으로 인하여 철근주변 콘크리트의 열화를 고려한 인장경화모델을 제안하였으며 교량의 노후화된 지점조건을 고려할 수 있는 지점 모델링 기법을 제안하였다. 제안된 모델을 사용하여 반복하중을 받는 노후화된 철근콘크리트 T형 교량이 파괴될 때까지의 2차원 및 3차원 파괴해석을 수행하였으며 파괴시험으로부터 분석된 교량의 파괴거동과 비교하였다. 해석결과와 실험결과의 비교로부터 본 논문의 모델링기법이 노후화된 교량의 파괴해석에 유용하게 사용될 수 있으며 노후화된 지점조건의 모델링이 교량의 강도평가에 매우 큰 영향을 주는 것을 규명하였다.

차량 탑재형 레이더 시스템의 구조물에 대한 연구 (The Study on the Vehicle-Mounted Radar System of Structural Design Under Environment Conditions)

  • 정화영;이건민;강광희;강종구
    • 한국정밀공학회지
    • /
    • 제33권10호
    • /
    • pp.797-804
    • /
    • 2016
  • The vehicle-mounted radar system (VMRS) including its electronic parts must be designed so that its performance is maintained under varying environmental conditions. The important aspects are typically weight and safety. Since many rotating VMRSs have been developed, discussion about the vibration and shock requirements for the transportation conditions has occurred: in addition, the dynamic unpaved, paved, and off-road effects have been emphasized with respect to lightweight designs. A lightweight-design VMRS should be capable of operating stably under the wind condition with the support of the vehicle structure. In this paper, a structural analysis regarding the support of the VMRS is performed, whereby the real-load conditions for three types of road and pressure were employed in terms of the wind condition. The structural analysis for the safety of the VMRS is performed, and the structural-integrity analytical processes of the VMRS are presented for different load conditions.

온도상승(溫度上昇)에 따른 H-형강(形鋼)보의 국부좌굴(局部挫屈)에 관(關)한 연구(硏究) (A Study on the Local Buckling of H-Beams at Elevated Temperatures)

  • 구본율;강문명;강성덕
    • 한국강구조학회 논문집
    • /
    • 제16권1호통권68호
    • /
    • pp.103-111
    • /
    • 2004
  • 본 연구는 예측된 균등한 온도 상승시 하중비, 하중상태, 지지조건의 주요변수를 고려한 H-형강보의 국부좌굴에 관한 것이다. 고온시 재료의 물리적 특성은 EC3 Part 1.2에 따랐으며, 철골 보의 판 국부 좌굴은 철판의 판폭두께비의 임계응력 또는 항복응력에 지배되는 것으로 나타났다. 균등한 열을 받는 철골 보의 국부좌굴은 한계상태 설계법에서 응력과 모멘트비로 평가하였다.

입원 치료중인 유방암 재발 환자의 삶의 경험 (Life Experience of Inpatients with Recurrent Breast Cancer)

  • 김영주
    • 대한간호학회지
    • /
    • 제41권2호
    • /
    • pp.214-224
    • /
    • 2011
  • Purpose: Understanding daily life experiences of patients admitted to hospital with recurrent breast cancer. Methods: The grounded theory method was used for this study. Results: Consistent comparative analysis was used throughout the study to obtain the results. Results showed that inpatients with recurrent breast cancer experience 'a co-existence of life suffering and fear of death'. The causal condition of this result was determined to be 'patient's response to cancer recurrence (acceptance/despair)', including contextual conditions such as, 'previous experience with cancer treatment', 'patient's current physical condition', and 'treatment methods for recurrent cancer'. Intervening conditions, such as 'a strong will to live', 'family support', 'moral support providers', and action/interaction strategies were found to provide patients with 'a strength to live'. Shown in these results, inpatients with recurrent breast cancer were seen to have a simultaneous 'hope for life and fear of death'. Conclusion: When providing nursing services to inpatients with recurrent breast cancer, people must recognize there is a notable difference between individual patients' contextual conditions and interactive strategies. Henceforth, proper cognitive nursing must be provided which encourages patients to maintain a strong will to overcome the many hardships of treatment as well as physical nursing, such as management of side effects caused by chemotherapy.

제조업 남자 근로자의 심혈관질환 위험요인에 대한 모형 구축 (A Structural Model Development on the Cardiovascular Disease Risk Factors among Male Manufacturing Workers)

  • 최은숙
    • 지역사회간호학회지
    • /
    • 제17권2호
    • /
    • pp.153-165
    • /
    • 2006
  • Purpose: The purpose of this study was to develop and test a structural model on cardiovascular disease risk factors among male manufacturing workers. Methods: Data were collected through questionnaires and health exams from 201 workers in a local electronic company during September 2004. Data analysis was done with SAS 9.1 for descriptive statistics and PC-LISREL 8.54 for covariance structural analysis Results: The overall fit of the hypothetical model to the data was moderate, it was modified by deleting five paths. The modified model had a better fit to the data($x^2=504.23$(p<001, df: 180), $x^2/df=2.80$, GFI=.95, RMR=.07, NFI=.90, PGFI=.64). Health behaviors and psychosocial distress were found to have significant direct effects on the cardiovascular disease risk factors. Self-concept had direct effect on psychosocial distress or health behaviors. Self-concept, work environment, and work condition had direct effect on social support. Work environment had indirect effect on psychosocial distress. Social support had indirect effect on health behaviors. But work environment and work condition were found to have little direct effect on health behaviors, psychosocial distress or cardiovascular disease risk factors. Conclusion: A cardiovascular health promotion program should therefore include psycho-social factors as well as health behavioral determinants in worksites.

  • PDF

무의 농촌지역 여성노인의 건강관리 경험 (Elderly women's Health Care Experience at Doctorless Farm Willages)

  • 김영희;한영란
    • 여성건강간호학회지
    • /
    • 제9권4호
    • /
    • pp.467-478
    • /
    • 2003
  • Purpose: This study investigated elderly women's health care at doctorless farm villages based on information-about the perception and management of their health. Method: Grounded theory method as mapped out by Strauss and Corbin-was used to record and transcribe open-ended interviews. The data from these interviews were analyzed. Result: We found 18 categories and 28 sub-categories. In data analysis, the core phenomenon was named "movement in pain". Causal condition as essential prerequisites were aging symptoms, bad state of health, comfortable life to live alone, longevity, deficiency of health care resources, and sub-categories of the phenomena revealed acceptance of discomfort, enduring pain, continuity of movability. Elderly women's health-related activities included enduring as it is, movement consciously, applying resources, difficult in using health medical institutions. Family support, economic level, disease condition, support system of community were influenced to their health-related activities. Consequently, the results indicated that they wanted to accept given life, expected easy death. held out remaining life. Conclusion: This study revealed that the most important factor of elderly women's health care was "movement in pain". On the basis of this study, we needed to develop diverse nursing implementation plans for maintaining and improving' movability without pain'.

  • PDF