• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 2006년도 춘계학술발표회 논문집(I)
• /
• pp.126-129
• /
• 2006

A bending moment $M_u$ transferred at slab-column connection is resisted at the slab critical section by flexure and shear. The ACI 318-05 Building Code(1) gives an empirical equation for the fraction ${\gamma}_{\upsilon}$ of the moment $M_u$ to be transferred by shear at the slab critical section at d/2 from the column face and also the effective wide(c+3h). The equation is based on tests of interior slab-column connections without shear reinforcement. In order to investigate the data eight test specimens were examined. The test shows that increased slab load substantially reduces both the unbalanced moment capacity and the lateral drift capacity of the connection. Especially, the specimens with the bottom reinforcement existence and nonexistence, appears remarkable differences. Studies also show that the code equation for ${\gamma}_{\upsilon}$ does not apply to all cases. The purpose of this study is to compare the test results with present ACI 318-05 Building Code provisions for design of slab-column connections and with the analysis of the experimental data for a new limitation of strength equation without shear reinforcement and bottom reinforcement.

• 한국가구학회지
• /
• 제20권5호
• /
• pp.440-456
• /
• 2009

Because PBD was started as a design tool for steel construction and concrete construction, it was able to applied to the post and beam method of wooden building constructions. But, it may not suitable to light frame wooden construction that is becoming popular in domestic construction market due to the economical efficiency and the constructive simplification. Owing to the share effects between member and sheathing material or among structural members, light frame wooden construction is different from post and beam construction that use a single structural member. Therefore, consideration on the system analysis and system design are urgently needed to use in actual life and inspect the reliability of structures from the system view. With this in mind, code conversion from ASD to PBD that is pressing issue in domestic wooden building construction was studied, also various countries status about PBD were considered and then approaching methods on the system reliability were referred. Finally, several considerations for the development of PBD were explored. PBD should be considered as, not only a new structural design process that select sizes of structural member, but a industrial tool that can lead a development of more reliable wood products. A strongest point of PBD is independent of various construction materials and construction types.

• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 2005년도 추계 학술발표회 제17권2호
• /
• pp.255-258
• /
• 2005

The current ACI design code does not take into account the contribution of concrete for the torsional moment of reinforced concrete(RC) beams subjected to pure torsion. This code is not capable of evaluating the inter-effects between concrete and torsional reinforcement on the torsional resistance of the RC beams. In this study, 9 RC beams subjected to pure torsion were tested. The main parameter of the beams was the amount of torsional reinforcement and the angle of twist. Test results indicated that the current ACI code over-estimated the torsional strength of RC beams that had larger amount of torsional reinforcement.

• 대한토목학회논문집
• /
• 제35권2호
• /
• pp.377-386
• /
• 2015

헬리컬 파일은 한 개 이상의 나선형 원판을 중공형 강재 축에 부착한 후 지반에 회전 관입시켜 지지력을 발현하게 하는 말뚝기초의 한 종류로서 별도로 천공작업 및 그라우팅을 필요로 하지 않고, 시공의 편의성과 말뚝 항타 등에 의한 소음이 없다는 장점이 있어 그 이용이 점차 증가되고 있는 추세이다. 본 연구에서는 Cylindrical shear method로 산정된 헬리컬 파일의 요구 지지력을 최소의 자재비용과 최적의 헬리컬 파일의 형상으로 발현할 수 있도록 하모니서치 알고리즘(Harmony search algorithm)을 적용하여 최적화된 설계법을 제안 하였다. 또한 헬리컬 파일의 최적 설계 결과를 2009 International building code (이하, 2009 IBC)를 참고하여 규격화시킨 설계 결과와 비교 검토하여 두 설계법의 경제성을 분석하였다. 본 논문의 재료비 최소화를 위한 헬리컬 파일 형상의 최적 설계 기법은 헬리컬 파일의 경제성을 향상하여 헬리컬 파일 시장 활성화에 기여할 수 있다.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2022년도 봄 학술논문 발표대회
• /
• pp.75-76
• /
• 2022

In Korea, the occurrence and risk of similar fires are high, so setting up fire prevention measures through fire case investigation is considered the most basic measure in securing human safety. Therefore, the purpose of this study is to research status and related regulations of Life Safety Codes for High Fire Risk Building Applications In the future, using this as basic data, it is considered that additional research is need to development Human Safety Standards in Korea.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2021년도 가을 학술논문 발표대회
• /
• pp.88-89
• /
• 2021

In Korea, the occurrence and risk of similar fires are high, so setting up fire prevention measures through fire case investigation is considered the most basic measure in securing human safety. Therefore, the purpose of this study is to research status and related regulations of Life Safety Codes for High Fire Risk Building Applications In the future, using this as basic data, it is considered that additional research is need to development Human Safety Standards in Korea.

• 한국지반공학회논문집
• /
• 제36권11호
• /
• pp.21-33
• /
• 2020

본 연구에서는 국내 내진설계기준 공통적용사항(MOIS, 2017)의 지반증폭계수를 활용하여 지표면 최대가속도를 산출하는 방법의 적절성을 검토하기 위해 포항지역 전역의 시추공을 대상으로 1차원 등가선형해석프로그램을 통해 지반응답해석을 수행하였다. 지반응답해석을 위한 지진파는 내진설계기준 공통적용사항에 따라 지진 재현주기 500년, 1000년, 2400년의 표준설계응답스펙트럼에 맞추었고, 지반데이터는 국토지반정보 포털시스템을 활용하여 확보하였다. 그 결과 내진설계기준 공통적용사항에서 제시하는 응답스펙트럼과 지반응답해석에서 얻어진 응답스펙트럼은 지반분류에 상관없이 대략적으로 일치하는 것을 알 수 있었다. 하지만, 증폭계수를 활용하여 지표면최대가속도를 산출할 경우 지반응답해석에서 얻어진 결과와 상당한 차이를 나타내는 것을 알 수 있었다.

• 한국지진공학회:학술대회논문집
• /
• 한국지진공학회 2000년도 춘계 학술발표회 논문집 Proceedings of EESK Conference-Spring
• /
• pp.17-17
• /
• 2000

A magnitude of 7.3 in Richter scale earthquake the strongest in-land earthquake in hundred years struck central Taiwan on September 21, 1999. It caused over 2,400 deaths and 30 some trillion won losses. To give an overview of this devastating earthquake this presentation will cover the following topics: 1) Introduction to Taiwan historical and 921 earthquake. 2) Damages to people landslide building dam bridge tank power facility etc. 3) Strong motion data and its characteristics. 4) Some changes to the building code triggered by the experience of the earthquake. Finally a concluding remark will be made.

• 한국전산구조공학회:학술대회논문집
• /
• 한국전산구조공학회 1992년도 가을 학술발표회 논문집
• /
• pp.121-126
• /
• 1992

This Paper presents a development of a CAD system for interactive design of steel frames. The adopted building code for structural design is "Steel Building Codes" enacted by the Architectural Institute of Korea in 1973. The selected member sections, therefore, are domestic rolled sections - especially, H shapes. The authors aim at a development of an integrated computer programs repeating plane frame analysis and design of members until minimum weight design condition is satisfied. This program also provides various section change functions to improve the shortcomings of automatic design.ic design.

• 설비공학논문집
• /
• 제27권11호
• /
• pp.574-580
• /
• 2015

Climatic zone in building code is an administrative district classification reflecting regional climatic characteristics. Use of Degree-Days is a fundamental method that can be used in various building design codes, analysis of building energy performance, and establishment of minimum thermal transmittance of building envelopes. Many foreign countries, such as the USA, the EU, Australia, Italy, India, China, etc., have already adapted climatic zone classification with degree-days, precipitation or amount of water vapor based on the characteristics of their own country's climate. In Korea, however, the minimum requirements for regional thermal transmittance are classified separately for the Jungbu area, Nambu area and Jeju Island with no definite criterion. In this study, degree-days of 255 Korean cities were used for climatic zone classification. Outdoor dry-bulb temperature data from the Korea Meteorological Administration for 1981~2010 was used to calculate degree-days. ArcGIS and the calculated degree-days were utilized to analyze and visualize climatic zone classification. As a result, depending on the distribution and distinctive differences in degree-days, four climatic zones were derived : 1) Central area, 2) Mountain area of Gyeonggi and Gangwon provinces, 3) Southern area, and 4) Jeju Island. The climatic zones were suggested per administrative district for easy public understanding and utilization.