• Journal of the Korean Wood Science and Technology
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• 제42권6호
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• pp.708-713
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• 2014

트러스는 북미 지역이나 호주, 뉴질랜드 등 목조주택이 일반화된 지역에 주택을 시공함에 있어 주로 사용되는 구조부재로써, 공장에서 제작되며 현장에서 제작하기는 힘들다. 반면에, 목조주택규모가 작은 국내에서는 제작비, 운반비, 경험부족 등을 이유로 트러스의 사용이 매우 제한적이며 대부분의 현장에서 서까래 공법으로 시공을 하고 있는 실정이다. 본 연구에서는 일반적으로 사용되는 금속제 트러스 플레이트가 아닌 현장에 버려지는 OSB를 덧댐판(gusset)으로 사용하여 현장에서 간단하게 제작이 가능한 형태의 경사트러스와 수평트러스를 제작해 보고 그 휨강도를 측정해 봄으로써 소규모 단독주택이 대부분인 목조주택 현장에서 사용가능 여부를 평가하고자 하였다. 경사트러스의 허용하중을 실제하중과 비교하였을 때, 지간거리 6 m에서 지붕경사트러스의 허용하중 및 실제하중은 10.60 kN 및 5.26 kN로 나타내어 사용하기에 충분하다고 판단된다. 지간거리 6 m의 수평트러스를 바닥장선으로 사용할 경우, 허용하중 및 실제하중은 7.18 kN 및 7.43 kN로 나타나 허용하중이 약간 낮기는 하지만 그 차이가 크지 않으므로 구조보강 및 부재의 변경 등을 통하여 사용이 가능한 것으로 판단된다.

• 한국방재학회:학술대회논문집
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• 한국방재학회 2009년도 정기 학술발표대회
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• pp.106.2-106.2
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• 2009

• 복식
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• 제55권2호
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• pp.82-91
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• 2005

The purpose of this study is to analyze the style of trousers of Koguryo(高句麗). Trousers of Koguryo were called Go(袴: trousers) and those had various forms according to the shape of gusset(dang, 糖), width and length of the trousers. Commonly the trousers that had worn by Koguryo people had gausset in those bottom not to be shown hip. The gausset was cut triangle or square so if a person wear the trouser with the triangular gausset, the trouser has a pointed hip. Sometimes the trousers had non pointed hips were dicovered in the wall-paintings of the Koguryo tombs, they are thought the trousers that had no gaussets or square one. And also there were another trousers that had wide/narrow legs and long/short legs. Trousers of wide legs were called Gwango(寬袴) and narrow legs Sego(細袴). Gwango(寬袴) grew wider over time and in the late age, the trousers were called Daegugo(大口袴) with wide ends were worn. Trousers were also decorated elaborately with patches on the edges, leg ties, vents, etc.

• 산업기술연구
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• 제21권B호
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• pp.213-222
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• 2001

In the study, the fatigue strength improvement and mechanism have been estimated by the Spot-Heating treatment on welded bead toes. For this, web-gusset specimens were made without residual stresses and the others with residual stresses imposed by Spot-Heating. The 4-point bending tests were performed in order to estimate the effect of spot-heating on fatigue strength and fatigue characteristics quantitatively for non load-carrying fillet welded joints subjected to pure bending. As a result of fatigue test, fatigue strength of As-Welded specimen for non load-carrying fillet welded joints subjected to pure bending has satisfied the grade of fatigue prescribed in specifications of korea, AASHTO and JSSC. As compare with As-Welded specimen and Spot-Heating specimen have increased about 20% for the fatigue strength at $7.7{\times}10^6$ cycles. The Spot-Heating by reformation of the residual stress on welded bead toes has greatly affected the fatigue crack propagation life, but has slightly affected the fatigue crack initiation life.

• 복식
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• 제26권
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• pp.251-264
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• 1995

The purpose of this study is to introduce and research the traditional Korean costume collections of Dr. McCune who was born in Pyung-Yang in 1907 and resided until her marriage to George S. McCune in about 1930. Her collections consist of three categories : children's costumes, adults' costumes, access-ories. The characteristics of collections are summorized as follows : 1. Deep wrappings are found at the front part of the top clothing when worn. The front gusset (SUB) has been dramaticaly tilted due to the difference in lengths of the top and bottom parts of the front gusset. 2. Assymetry was one of the principles of decorating Korean costumes. The assymetry were repeated at the GIT and SUB of CHOGORE with patchwork patterns. 3. Primary colors were favored in Korean costume. Hue contrast in color combinations was prefered as well, such as : yellow CHOGORE and purple blue CUFFS, a red SUN pattern matched with green embroidery. 4. Surface patterns were not so popular in Korean costumes, while the most colorful and fabulous patterns were shown through the various embroidery artifacts. Patterns were used as a way of expressing of their desires or longings in Korean costumes. The main themes of the patterns were longevity and happiness. The patterns such as peony, lotus, chrysanthemum, bamboo and bat were implying symbolism at that time. 5. Natural materials were prefered for the garments, Silk and cotton were used as the main materials of the costume collections. Studies of Korean Costume collections owned by international collectors are meaningful to boost the arena of Korean Costumes as well as fill up the vacancy left by lost costume artifacts.

• Steel and Composite Structures
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• 제19권4호
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• pp.877-895
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• 2015

Connections to circular hollow steel sections (CHS) are considered one of the most complex and time consuming connections in steel construction. Such connections are usually composed of gusset plates welded to the outside of the steel tube or penetrating the steel tube. Design guides, accounting for the effect of connection configuration on the strength of the connection, are not present. This study aims to investigate, through experimental testing and a parametric study, the influence of connection configuration on the strength of one sided branch plate-to-CHS members. A notable effect was observed on the behavior of the connections due to its detailing changes with respect to capacity, failure mode, ductility, and stress distribution. A parametric study is performed using the calibrated analytical model to include a wider range of parameters. The study involves 26 numerical analyses of finite element models including parameters of the diameter-to-thickness (D/t) ratio, length of gusset plate, and connection configuration. Accordingly, a modification to the formulas provided by the current design recommendations was suggested to include connection configuration effects for the one sided branch plate-to-CHS members.

• 한국강구조학회 논문집
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• 제13권1호
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• pp.81-89
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• 2001

본 연구에서는 편심률과 세장비가 고려된 가셋트-강관 접합부의 거동 및 극한 강도를 파악하기 위하여 실험 및 유한요소 해석을 수행하였다. 실험체는 가력장치의 용량제한으로 1/3 축소모형 실험체로 제작되었으며, 유한요소해석 모형도 이와 동일한 형태로 설정하였다. 여기서 본 연구이 주된 관심은 횡력에 의한 편심이 접합부 극한 강도에 미치는 영향을 파악하는 것으로 연구결과 세장비, 횡력비 가셋트 플레이트 길이 축소가 가능하 편심접합 사용의 가능성을 파악하였으며, 실험결과와의 비교를 통해 설정된 유한요소해석 모형의 검증도 수행하였다.

• 한국의류산업학회지
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• 제8권6호
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• pp.727-732
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• 2006

The purpose of this study was to investigate the effects of flame-proof clothing on physiological responses and subjective sensation. We measured rectal temperatures, local skin temperature, clothing microclimate, blood pressure, heart rate, body weight loss and subjective sensation during 90 minutes (30 min of rest, 45 min of exercise and 15 min of recovery periods). Seven male subjects wore flame-proof clothing or reformed flame-proof clothing under the environmental condition of $35{\pm}1^{\circ}C$, $45{\pm}5%$ RH and $25{\pm}1^{\circ}C$, $50{\pm}5%$ RH. The results of this study were as follows; Rectal temperature, mean skin temperature, clothing microclimate and blood pressure were significantly lower levels in reformed flame-proof clothing. Heart rate and body weight loss were also showed lower levels. Subjects replied less hot, less uncomfortable and less wet in wearing a reformed flame-proof clothing. Our present results suggest that the ventilation through of gusset in underarm seam and zipper in sideseam of slacks are qualitatively useful for physiological needs.

• 한국의류학회지
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• 제44권1호
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• pp.107-125
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• 2020

Indigo [鴉靑] was used as a symbolic color in 15^th century diplomacy. This study reinforces the historical research for characteristic and shapes of indigo colored royal clothing gift in King Seongjong's reign with a focus on po [袍] and ieom [耳掩]. Clothing made of fur that was combined with satin damask, silk gossamer [綃] were frequent gift, and a sable coat was a symbol of high-ranking clothes. Another clothing's materials were satin damask, sheer fabric gauze [羅], cotton, tabby with silk and ramie [紵絲]. The indigo color of King Seongjong's reign was recommended not for luxury. Historical research factors for indigo clothing gift were extracted from noblemen's relics. Danryeong and jigryeong are shaped of narrow sleeves and trapezoid gusset pleated in and out. Sable coat can consist of satin damask outshell, sable lining, and double oblique collar. Heohyung are presumed types of short sleeved fur vests. Ieom can be reconstructed with an indigo fabric outshell and sufficient fur. Dapho has gusset pleated wide and narrow. As additional gifts, the shapes of yoseon-cheopri and cheopri were analyzed. We selected a commercial fabric similar to relics and an indigo powder dyeing method to remedy a lack of traditional material. The reconstructed data were presented as flat drawings and samples.

• 국제강구조저널
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• 제18권5호
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• pp.1631-1638
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• 2018

In the periodic repainting of steel bridges, often the steel surface has to be prepared by using power tools to remove surface contaminants, such as deteriorated paint film and rust, and to increase the adhesive strengths of the paint films to be applied newly. Surface preparation by bristle roll-brush grinding, which is a type of power tool, may additionally introduce compressive residual stress and increase the fatigue resistance of welded joints owing to the impact of rotating bristle tips. In this study, fatigue tests were conducted for longitudinally out-of-plane gusset fillet welded joints and transversely butt-welded joints to evaluate the effect of bristle roll-brush grinding prior to repainting on the fatigue resistance of the welded joints. The test results showed that bristle roll-brush grinding introduced compressive residual stress and significantly increased fatigue limits by over 50%.