목재데크의 소재 및 구조의 차이가 보행감에 미치는 영향

이혁재,정운근 (사)한국정원디자인학회 2018 한국정원디자인학회지 Vol.4 No.1

The deck rods are believed to have different levels of walking satisfaction depending on what type of wood they use for installation. Types of wooden decks include WPC (Composite Wood), Oceania timber (Hardwood), Softwood, Engineering Wood, and Greening Wood. WPC also has different performance depending on the method of manufacture, and natural wood also has different performance depending on the type of water and technique. Therefore, this study revealed the effect of wood differences on the level of walking satisfaction by the general public on deck rods using various materials. After selecting 12 sites and conducting evaluation experiments on 600 people, WPC for clip-free, clip-type construction was considered sophisticated. From the fact that WPC has a strong sense of urban feeling and freshness, one can guess that it might be more appropriate to be used in cities than in natural landscapes. Softwood, on the other hand, was rated a quiet and cozy material. Softwood is thought to be a good place to be used where noise problems can occur, such as near residential areas. And Hardwood was found not to be quiet due to the nature of walking. However, as the hardwood is more durable than the softwood, it is well fed for use in mountains where maintenance is difficult. On the other hand, in the case of Hardwood, high density causes noise to occur when walking, but the noise was not measured and compared directly, so further investigation is needed. 목재 탐방로는 설치시에 어떠한 종류의 목재를 사용하느냐에 따라 보행만족도에는 차이가 있을 것으로 사료된다. 목재데크의 종류로는 2000년대부터 폭발적으로 수요가 늘고 있는 WPC(합성목재), 남양재(하드우드), 침엽수계열의 소프트우드, 공학목재, 개질강화목재 등이 존재하고 있다. WPC도 제조법에 따라 다양한 성능을 가지고 있고, 천연목재 또한수종과 공법에 따라 다양한 성능을 가지고 있다. 따라서 본 연구에서는 다양한 소재의 목재를 사용한 목재 탐방로를대상으로 일반인들에 의한 보행만족도를 설문조사를 통하여 파악하여 목재의 차이가 보행만족도에 미치는 영향을 밝히는 것을 목적으로 하였다. 대상지 12곳을 선정하여 일반인 600명을 대상으로 평가실험을 한 결과, 직결비스가 보이지 않는 클립형 시공을하는 WPC는 세련되었다는 평가를 받는 것을 알 수 있었다. WPC는 도시적인 느낌, 산뜻한 느낌이 강하다는 것으로부터자연적인 경관에서보다는 도시에서 사용되는 것이 더 어울릴 수 있을 것이라는 추측을 할 수 있다. 반면에 소프트 우드는조용하고 아늑한 소재인 것으로 평가되었다. 소프트 우드는 주택지와 가까운 곳과 같이 소음에 대한 문제가 발생할수 있는 곳에 사용하면 좋은 평가를 받을 수 있을 것으로 사료된다. 그리고 하드우드는 보행 특성상 조용하지 않은소재로 파악되었다. 하지만 하드우드는 소프트우드에 비해 내구성이 강하므로, 유지관리가 어려운 산속에 사용하면 좋을것을 사료된다. 한편으로 하드우드의 경우, 밀도가 높아 보행 시 소음이 발생하는 것이 원인으로 사료되나, 소음을 직접측정하여 비교하지 않았으므로 향후 좀 더 면밀한 조사가 필요하다.

알루미늄 보강 합성목재 데크의 휨강도 평가

박준석,최진우 한국복합신소재구조학회 2018 복합신소재구조학회논문집 Vol.9 No.2

Synthetic wood has been widely used in place of wood such as the building exterior materials and/or the floor plate of moving path. However, it has many disadvantages such as relatively low strength, low durability, and heavy weight, etc. In this study, the synthetic wood deck combined with an aluminum profile was suggested to overcome these disadvantages. The flexural strength of the aluminum-synthetic wood deck was obtained through the theoretical equations under three-point bending conditions. In addition, the finite element analyses were also conducted to evaluate the flexural strength of the aluminum-synthetic wood deck.

Analysis of Mechanical Properties of Wood Flours Composites to Improve the Strength of Truck Deck Floor Boards

Sung-Woo Yun(윤성우),Sun-Ho Go(고선호),Hong-Gun Kim(김홍건),Lee-Ku Kwac(곽이구) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.1

The deck floor of a the cargo truck becomesis damaged and aged due to the continuous loading of the loading cargo and external environmental factors. Floor boards made of wood and metal are often used. In the case of wood, the cost is high due to the use of imported wood, and the strength is easily deterioratesd due to environmental factors. In the case of metal materials, the durability is higher than that of wood, but problems are raised due to the effect of major factors that hinder the weight reduction, and the effects of corrosion. In order to replace this stucturestructural design, this study proposed a wood fiber composite using natural raw materials. Woody composites are being used as environmentally and friendly exterior materials with the combined advantages of plastic, and wood,; low cost and low density. However, due to the nature of the woody composites, the properties are differentdiffer depending on the contents of the matrix, reinforcing agent, additives, compatibilizer, etc. In this study, we investigate these problems through analysis of the microstructure and mechanical properties according to proper content and injection molding conditions. As a result, it is considered that the wood deck composite can replaced the current Deck Floor Boardreplace current deck floor boards through continuous continued research and results of this study.

수종별 목재 데크재의 내구성에 관한 연구

김경중,이원재,최철,김희진,강석구 한국가구학회 2017 한국가구학회지 Vol.28 No.2

Recently, as people’s interest in wood has increased, the use of wood as household and landscape decking materials has increased. As the deck material, imported wood such as synthetic wood, Ipe, and Malas was used in addition to the existing preserved wood, but recently deck use has been activated as part of the activation of domestic materials. As an important quality factor in the selection of such decking material, various durability along with weatherability for long - term use is required for maintenance. Generally used tropical hardwoods have excellent weatherability and durability without additional preservative treatment. However, the domestic larch is a wood species with a higher specific gravity and durability than ordinary conifers. However, it has not yet been used as a deck material due to lack of comparative studies on its characteristics. Therefore, hardness and durability of wood were measured using six specimens of Ipe, Massaranduba, Malas, Douglas-fir, Larch and Torrefied-Larch. Density Profile was used to measure the density, and Brinell hardness test and resistance test against momentary impact were carried out for the test of resistance to static load. Also, The hardness and durability of wood were measured by castor test with resistance test against dynamic load, as well as, nail down test by experiment on surface hardness and durability. As a result of the experiment, the hardness was increased in proportion to the density, and it was confirmed that the imported lumber was harder and durable than the domestic larch.

목재 데크재의 초음파 비파괴시험에 의한 인위적인 결함의 영향평가

오세창 ( Sei Chang Oh ) 한국목재공학회 2016 목재공학 Vol.44 No.1

목재 데크재에 인위적인 결함인 구멍을 부여하고 이들의 성능평가를 위해 초음파 비파괴 시험법을 적용하였다. 구멍의 크기와 개수를 달리하여 각각에 대한 초음파 전달속도를 측정하고 탄성계수를 산정하여 그 영향을 비교분석하였다. 시험결과 구멍의 크기가 커짐에 따라 초음파 전달속도와 탄성계수는 감소하였으며 이들 상호간에는 직선상관관계를 보였다. 구멍의 크기가 증가하면 초음파의 전달 길이는 증가하며 이에 따라 초음파속도는 감소하였지만 구멍의 크기가 15 mm 이하로 작은 경우에는 구멍이 없는 부재에 비해 그 차이가 작게 나타났다. 구멍의 개수가 많아짐에 따라 초음파 전달속도와 탄성계수는 감소하였으며 이들 상호간에는 높은 직선상관관계를 보였다. 구멍의 개수가 3개인 경우 초음파속도는 약 3.5% 정도 감소한데 비하여 탄성계수는 27% 정도로 현저히 감소하여 더 큰 감소경향을 나타내었다. 이들의 결과로부터 구멍의 크기와 개수는 초음파 전달속도와 탄성계수에 영향을 미치며 구멍의 크기가 크고 개수가 많아질수록 그 영향은 더욱 커질 것으로 여겨진다. 또한 작은 결함의 탐지를 위해서는 초음파 전달속도에만 의지할것이 아니라 여러 초음파 변수를 고려하여 적용하는 방법을 고려하여야 할 것으로 생각된다. Non-destructive ultrasonic testing was applied to evaluate the performance of wood deck material with hole as artificial defect. Ultrasonic velocities and modulus of elasticity were measured according to different diameters and numbers of holes, and comparative analysis to each data were done. From the results, ultrasonic velocities and modulus of elasticity decreased with an increase in the hole size and showed a negative linear correlation with the size of hole, respectively. As the hole size increased, ultrasonic velocities decreased, but their difference was small in the case of the hole size under 15 mm. Also, ultrasonic velocities and modulus of elasticity decreased with increasing the number of holes and showed a strong negative linear correlation to the number of holes. As the number of holes increased, ultrasonic velocities decreased to 3.5%, but modulus of elasticity decreased to 27%. Therefore, the number of holes showed greater influence to modulus of elasticity than ultrasonic velocity. Overall, the size and number of holes influenced to ultrasonic velocity and modulus of elasticity, and their influence will be greater as the size and number of holes increases. These results suggested that several ultrasonic parameters rather than a single ultrasonic velocity should be applied to detect small defects in wood decking materials.

골조형 주거 건물에서의 Deck Plate 대체형 목제 시스템 거푸집 적용성 연구

임남기,허재원,신운식 대한건축학회지회연합회 2006 대한건축학회연합논문집 Vol.8 No.3

강화플라스틱 연결구를 이용한 데크의 내력 성능평가

송요진 ( Yo Jin Song ),정홍주 ( Hong Ju Jung ),이동흡 ( Dong Heub Lee ),김경대 ( Kyung Dae Kim ),홍순일 ( Soon Il Hong ) 한국목재공학회 2013 목재공학 Vol.41 No.1