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홍건호 ( Hong Geon-ho ),탁소영 ( Tak So-young ),김치경 ( Kim Chee-kyeong ),김희규 ( Kim Hee-kyu ),박상현 ( Park Sang-hyun ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.2
The purpose of this study is development of the total safety management system for the specific control facilities. The system is a integrated information system that support the all safety management works; plan execution, follow-up of the safety inspection and making reports. And this system also provide information data to construct the disaster prevention policy. To achieve this objective, a requirement for the total safety management systems were investigated and analyzed.
홍건호 ( Hong Geon-ho ),백종삼 ( Baek Jong-sam ),박홍근 ( Park Hong-gun ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.2
Recently, the interest of precast concrete has increased in the construction sites. Prior to the use of precast concrete evaluation of structural performance is required. Hollow-core slab on the lateral loads should be the diaphragm action sufficient. The purpose of this study is to evaluate the in of plane shear resistance performance between hollow-core slab. To achieve this objective, according to the thickness of the topping concrete in of plane shear resistance performance of hollow-core slab was analyzed through experiments.
합성단면 분류 기준에 따른 각형 CFT 축압축강도 설계식 평가
홍건호(Hong, Geon-Ho),김원기(Kim, Won-Ki) 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.5
Concrete filled steel tube column is one of the best methods to increase the structural efficiency using its constitutive material"s complementary properties. But, the limitation of material strength in present design code is a big obstacle to enhance the high strength materials. The purpose of this study is to evaluate the axial load capacity in present design code in high strength materials by analyzing previous research results. The materials using this study are test results by several researchers from 2002 to 2012. Test results of total 88 specimens are analyzed with the AISC 360-10 code and B.Uy"s proposed formula. Analytical results indicated that present design code approximately well estimate the axial load capacity below 600MPa of the steel yield strength regardless of the class of section type. But, it is necessary to revise the load capacity in high strength steel especially in non-compact element because it underestimate their design strength compared with test results.
각형 콘크리트 충전강관기둥의 단면형태별 축압축강도 설계식 분석
홍건호(Hong, Geon-Ho),최인락(Choi, In-Rak),정경수(Chung, Kyung-Soo) 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.11
The purpose of this study is to analyze the axial load capacity equations for rectangular CFT columns in the AISC 360-10(the US design code for structural steel buildings) which is being investigated as a revision of Korean Building Code. Main parameters were the width-to-thickness ratios of composite member and material strength as 30∼100MPa of concrete compressive strength and 325∼725MPa of yield strength of structural steel. The first method of changing width-to-thickness ratios was to fix the thickness of structural steel to 5mm and to increase the size of member. The second method was to fix the size of member to 620mm×620mm and to change the thickness of structural steel. The analysis results indicated that axial load capacity used higher strength steel is lower than the capacity used lower strength one in some regions although the section size was equal. The reason of this result is due to the different section type that is classified by the equation of limit width-to-thickness ratios. When the yield strength of structural steel become higher, its section type and axial load capacity equation is changed though its width-to-thickness ratio is the same with the lower yield strength members. The region of this phenomenon is become wider following to the increase of concrete compressive strength because part of concrete load capacity is govern the total load capacity of members. To resolve this irregular phenomenon that axial load capacity is reversed in some region, it is necessary to modify the code provision for calculation the load capacity in high strength materials.
홍건호(Hong, Geon-Ho) 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.7
Slab is one of the most influential members in whole structure because the number of members are increased in proportion to the number of stories. So the structural type of slab can largely influence on the whole construction period and amount of materials. This study suggest the slab system consist of structural deck-plate and steel fiber reinforced concrete for improving construction ability and reduction of construction period. Structural deck-plate can replace the tensile reinforcement and concrete form, and steel fiber can replace the temperature reinforcement. Total 5 slab specimens were tested for analyzing the structural performance and serviceability. This paper analyzed the test data in the viewpoints of flexural strength, stiffness, deflection, crack and failure pattern. Test results indicated that slab with structural deck-plate has good flexural strength ratio and greatly increase the flexural stiffness compared with normal concrete slab. And it can also reduce the cracking height, and represent the good dispersion of it. The performance of slab with steel fiber reinforced concrete and deck-plate is appeared to be similar or better to the slab with wire-mesh and deck-plate.