• Journal of the Korean Wood Science and Technology
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• 제42권2호
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• pp.193-206
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• 2014

Residual performance of old architectural wood which has been damaged was measured using Nondestructive Evaluation (NDE). The wood Pole Tester was used to assess ultrasonic velocity inside wood and drill resistance was determined using an IML-resistograph. For ultrasonic measurements squared timber and circular timber's measurements were separately conducted with 1,300 m/s as the standard ultrasonic velocity. The standard wood samples divided into two parts; a non-sound area (below the standard), and a sound area (above the standard). Furthermore, schematization of wood was compared with results naked eye observation. The drilling resistance test was performed for both length and thickness direction in wood. The internal of the drilling was set at 30 cm (length direction), 5 cm (width direction) and 30cm (thickness direction). A non-sound area was defined as that 1) amplitude is below 20% and 2) carbonization and deterioration are related.

• Journal of the Korean Wood Science and Technology
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• 제37권4호
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• pp.320-329
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• 2009

본 연구는 경골목조벽체의 구조적 안전성을 위협하고 주거환경을 열악하게 하는 벽체 내 수분축적을 감소시키기 위해 수행되었다. 이를 위해 벽체 구성 요소를 변화시켜 실험을 진행하였다. 벽체 구성요소는 방습지 및 공기층을 추가하였고, 이들의 변화에 따른 수분이동의 변화를 조사하기 위하여 실내외 온습도 차이가 뚜렷한 가혹조건에서 기본벽체와 제안벽체의 비교실험을 진행하였다. 실험결과 실내 측 방습지 추가로 방습성능을 높이는 것은 실내로부터의 수분이동 감소에 효과적으로 나타났지만 두 개의 방습지를 설치하는 경우 과도한 방습 성능이나 부적절한 위치선정으로 벽체의 내부의 상대습도를 높이는 것으로 나타났다. 공기층 추가는 환기 효과에 의해 벽체 내부에서 실외로 수분이동을 야기하였다. 공기층에 의해 실내로부터 벽체 내부로 유입되는 수분이동을 막을 대안을 찾는다면 환기에 의한 벽체 내 수분감소 효과를 극대화 할 수 있을 것으로 기대된다.

• 한국농공학회:학술대회논문집
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• 한국농공학회 2000년도 학술발표회 발표논문집
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• pp.84-89
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• 2000

This study has been done to investigate the characteristics of the wall materials of a earthen house ; the core-wall of wood-frame house and the mud-wall of a all wall house. A series of tests was carried out to study the physical and mechanical properties of wall materials which were picked from existing earthen houses. The core-wall materials were composited sandy soil or clayey soil with low plasticity. The mud-wall materials were sandy soil with well compaction effect. It was confirmed that the wall materials were not always using the loess(called Hwang'o) but using the common soils which wee easily picked from the residential quarter.

• KIEAE Journal
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• 제16권3호
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• pp.113-119
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• 2016

Purpose: In this study, we evaluate the annual energy performance of the detached house which was designed with the aim of zero energy. Method: The experimental house which was constructed in Gonju Chungnam in 2013, is the single family detached house of light weight wood frame with $100m^2$ of heating area. Thermal transmittance of roof (by ISO 10211) and building external walls are designed as $0.10W/m^2K$ and $0.14W/m^2$ respectively and low-e coating vacuum window glazing with PVC frame was installed. Also grid connected PV system and natural-circulation solar water heater was applied and 6kWp capacity of photovoltaic module was installed in pitched roof and $5m^2$ of solar collector in vertical wall facing the south. We analyzed the 2014 annual data of the detached house in which residents were actually living, measured though web-based remote monitoring system. Result: First, as a result, total annual energy consumption and energy production (PV generation and solar hot water) are 7,919kWh and 7,689kWh respectively and the rate of energy independence is 97.1% which is almost close to the zero energy. Second, plug load and hot water of energy consumption by category showed the highest numbers each with 33% and 31%, with following space heating 24%, electric cooker 8%, lighting 3% in order. Hot water supply is relatively higher than space heating because high insulation makes it decreased.

• KIEAE Journal
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• 제7권1호
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• pp.95-100
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• 2007

In apartment houses, said to be similar to a typical housing form, every household share the walls and floors. Many problems inevitably accompany such as an arrangement, as noise and vibration are shared among households. When investigating the percentage of apartment resident's dissatisfaction with housing environments, discontent due to noise ranks the highest. Among many different kinds of noises, noise such as floor crashing sounds show the highest indication rate in the residents' comparison of discontent. Therefore, it is the practice of insulating against noises such as floor crashing sounds that improves the apartment house environments. The factors influencing the floor impact sound insulation include floor finishing materials, shock absorbing floors (slabs included), and ceiling structures. The ceilings of the apartment houses, currently built in Korea, are set up with lower parts of slabs and paper finishing, or with double floors for protecting against floor impact sounds in order to improve the sound insulating performance. The most common the method of ceiling structure construction consists of 'wood boarded frames +Gypsum boards + ceiling papers', which is called the wood boarded frame method. This study aimed to measures and evaluates floor impact sound insulation by which the ceiling space are widened according to suppression system is added in apartment house ceiling structure.

• 농업과학연구
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• 제37권2호
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• pp.271-276
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• 2010

In this study, the light-frame wood shear walls according to the sheathing materials was carried out to investigate the shear load performance. Most common sheathing materials are the structural OSB and gypsum board used to consist wall of wood-frame house. Seven different type of specimens are composed of several sheathing materials and shear test was taken to evaluate shear performance by KS F 2154. As a result, shear walls(G12.5/G12.5 and G12.5/OSB) show that maximum shear strength and shear rigidity modulus are 7316N/mm${\cdot}$118.25 N/mm and 11129 N/mm${\cdot}$184.66 N/mm respectively. The shear wall using gypsum board 15mm improve maximum shear strength and shear rigidity modulus about 30%. The shear wall using 15mm gypsum board showed intermediate value in one side specimens. Different types of shear walls could be compared with the shear load performance. Also, nailed joint failure aspects are different to sheathing material and installing method.

• 한국산학기술학회논문지
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• 제17권6호
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• pp.360-371
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• 2016

폴 루돌프의 플로리다 지역 주택은 2차 세계대전 이후 형식적인 근대 건축에서 탈피한 다양한 공간 구성, 지역 재료 및 구법의 사용으로 지역적 특성을 반영한 사례이다. 플로리다 주택 작품은 시대적, 지역적인 특성을 기반으로 하여 공간의 확장 및 연결 그리고 지역 환경을 고려한 재료 및 구법, 구조 시스템을 표현해야 한다는 설계 개념이 반영된 건축이다. 플로리다 주택의 특성은 공간 확장 및 외부 공간 연결 기법으로 목재 구조체를 중심으로 한 공간 확장과 가변적 공간구현 그리고 외부공간의 적극적인 연계성을 유도하기 위하여 다양한 방법(스크린 지붕, 오픈 지붕, 내부 파티오)을 사용하였다. 그리고 지역 재료 사용 그리고 지역 환경에 적합한 디테일 및 구법 사용으로 플로리다 지역의 석회암과 사이프러스 목재를 주된 재료로 사용하고, 고온 다습한 기후에 적합한 디테일과 지역 건설 환경을 고려한 구법을 사용하였다. 폴 루돌프의 플로리다 주택 연구를 통하여 현대 건축의 지역성을 고려한 계획에 구체적으로 적용 가능한 공간적, 기술적 적용 방법에 대한 모범사례로서 제안하는데 그 의미를 찾고자 한다.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2007년도 춘계학술대회논문집
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• pp.1038-1042
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• 2007

The factors influencing the floor impact sound insulation include floor finishing materials, shock absorbing floors (slabs included), and ceiling structures. The ceilings of the apartment houses, currently built in Korea, are set up with lower parts of slabs and paper finishing, or with double floors for protecting against floor impact sounds in order to improve the sound insulating performance. The most common the method of ceiling structure construction consists of 'wood boarded frames + Gypsum boards + ceiling papers', which is called the wood boarded frame method. This study aimed to measures and evaluates floor impact sound insulation by which the ceiling space are widened according to suppression system is added in apartment house ceiling structure.

• Journal of the Korean Wood Science and Technology
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• 제41권3호
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• pp.234-246
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• 2013

목조주택의 골조 및 실내 외 마감용으로 사용되는 침엽수 구조재를 대상으로 방염 방충 보존처리제가 혼합된 약제에 마이크로파 가열 후 열기를 지닌체 침지하여 복합적인 기능화를 부여한 후 목재의 건조 스케줄, 방염 시험에 의한 화재 저항성과 흰개미에 의한 내충해성, 혼합 약제의 침투성 분석을 실시한 결과 마이크로파로 3 kW로 5분 급속 가열된 시험편은 목표 온도 및 함수율을 만족하는 것으로 나타났으며, 인산염과 헤테로고리화합물계가 혼합된 약제에 120분 침지할 경우 가장 높은 중량 증가율을 가지는 것으로 나타났다. 또한 방염 후 처리 물품 시험을 실시한 결과 인산염과 혼합된 약제는 방염기준을 모두 만족하는 것으로 나타났으며, 흰개미 투입 후 7일 사충율을 확인한 결과 인산염과 헤테로고리화합물계 혼합 약제 침투 시험편의 경우 96% 이상 높은 사충율을 나타냄으로서 가장 우수한 특성을 가지는 것으로 나타났다. 목재 내부로 약제 침투성 분석을 실시한 결과 목재 세포내부 전면에 있어 혼합약제가 침투된 것으로 나타나 목재의 방염성 및 방충 저항성 등에서 우수한 성능의 발현은 혼합 약제의 균일한 침투때문으로 판단된다.

• 대한건축학회논문집:구조계
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• 제35권3호
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• pp.11-18
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• 2019

The purpose of this study was to estimate the resistance capacity of a traditional wooden house with shear walls made of wood panel. In order to achieve the purpose of the study, the load - displacement test was carried out and the resistance moment values of the shear walls were proposed. The shear walls were made by placing studs with a nominal dimension of $38mm{\times}89mm$ at intervals of 600 mm, and attaching 12 mm thick plywood with 8-d size pegs at intervals of 150 mm. The type of traditional building wall was classified and showed the moment resistance ability of each wall type. This value is expressed as a proportional value divided by the moment resisting capacity of the standard size shear walls not divided into the divided small frames. Although some frames have proportional values larger than 1.0 even though they have openings, most of them show values smaller than 1.0. Also, even without the openings, it showed a smaller value than 1, such as 0.84 and 0.67.