The Yingxian Timber Pagoda lacks contemporary records, leaving its patron and original intent uncertain. This study offers a comprehensive analysis integrating historical events, geographical context, iconographic programs, governing ideology, and non-religious functions. The findings show that Yingzhou served as a strategic zone where espionage, defense, and religious activities intertwined during the prolonged confrontation between the Liao and Song dynasties. Constructed under Emperor Xingzong, the pagoda followed a pre-conceived sculptural plan: the first, third, and fifth stories represented the Mandalas of the Seven Past Buddhas, the Four Directional Buddhas of the Vajradhātu, and the Eight Great Bodhisattvas, while the second and fourth enshrined Śākyamuni triads. Previous interpretations viewed this scheme as an embodiment of Huayan-Esoteric cosmology, the manifestation of the Lotus Treasury World, or a ritual setting for the Uṣṇīṣa Vijaya Dhāraṇī; however, these require revision because the Buddha on the first-story pedestal was a later addition. According to the Jip-seo, Emperor Xingzong sought to realize in the human realm the horizontal unfolding of the Lotus Treasury and the vertical expansion of Indra’s Net. The pagoda’s iconographic system thus functioned as a medium materializing this cosmic process—indeed, as Indra’s Net itself. This intention is further supported by the Yanmi-chao compiled under imperial order. Despite the treaty’s ban on fortress construction, the pagoda also served surveillance and defensive roles and was linked to the royal exorcistic rite of shooting whistling arrows. Ultimately, it represents a multidimensional apparatus uniting architecture, religion, military, and diplomacy, embodying Liao Buddhist cosmology and Emperor Xingzong’s governing ideals.

This study proposes empirical formulas for predicting the nonlinear behavior of GIR beam-to-column connections in timber structures to evaluate their structural performance. A database comprising 59 experimental results of GIR connections was collected, and the normality of data distribution was verified. Statistical analysis were conducted to investigate the correlations between input and output parameters. Based on input parameters with high correlation, derived variables were formulated and utilized in a multiple regression analysis to develop empirical formulas for moment capacity and rotation. The R-squared values of the proposed formulas exceeded 0.9, and the predicted initial stiffness and strength closely matched those of experimental results not used in the regression analysis. So the suggested empirical formulas exhibit excellent predictive performance for the nonlinear behavior of GIR beam-to-column connections in timber structures.

본 논문에서는 패널시스템 기반의 대표적인 2개의 중･고층 목조 건축물을 대상으로 각 건축물에 적용된 바닥, 벽체 및 코어 패널시 스템을 구조성능, 경제성, 내화성, 사용성, 목재 재활용성, 목재 사용량을 기준으로 비교분석하였다. 그리고 이를 바탕으로 각 건축물 의 전체적인 성능향상을 위한 대안을 제시하였다. Bridport House의 CLT 바닥패널은 조립목재패널로 변경하고 Badenerstrasse Building의 콘크리트 코어는 CLT 패널 코어로 변경하면 전반적으로 성능이 향상되는 것으로 평가되었다. 본 연구에서 제안한 비교분 석 틀은 중･고층 목조 건축물의 설계 시 최적 구조시스템 도출을 위한 가이드라인으로 역할을 할 것이라 기대된다.

본 논문은 조선시대의 대표적인 중층 목구조인 공주 마곡사 대웅보전에 대하여 수직하중에 대한 구조성능을 평가하였다. 구조해석 소프트웨어인 midas Gen으로 실물과 근접하게 해석모델을 3차원으로 구축하였다. 정적해석으로 수직하중에 대한 주요 수직 및 수평 부재의 안전성과 사용성을 평가하였다. 모든 부재가 안전성과 사용성 기준을 만족하였으나, 하층 대량은 전이보 역할로 구조적 취약 점이 나타나 개선의 필요가 있다. 동적거동특성 평가를 위한 고유치해석시 주요 접합부의 상대회전강성은 5%로 가정하였다. 고유주 기는 1.105초로 비슷한 규모의 한옥 범주에 속하고 있으며, 1차 모드는 건물 전후방향의 병진운동으로 나타났다.

Timber structures are susceptible to moisture, contamination, and pest infestation, which can compromise their integrity and pose a significant fire hazard. Despite these drawbacks, timber's lightweight properties, eco-friendliness, and alignment with current architectural trends emphasizing sustainability make it an attractive option for construction. Moreover, timber structures offer economic benefits and provide a natural aesthetic that regulates building temperature and humidity. In recent years, timber domes have gained popularity due to their high recyclability, lightness, and improved fire resistance. Researchers are exploring hybrid timber and steel domes to enhance stability and rigidity. However, shallow dome structures still face challenges related to structural instability. This study investigates stability problems associated with timber domes, the behavior of timber and steel hybrid domes, and the impact of timber member positioning on dome stability and critical load levels. The paper analyzes unstable buckling in single-layer lattice domes using an incremental analysis method. The critical buckling load of the domes is examined based on the arrangement of timber members in the inclined and horizontal directions. The analysis shows that nodal snapping is observed in the case of a concentrated load, whereas snap-back is also observed in the case of a uniform load. Furthermore, the use of inclined timber and horizontal steel members in the lattice dome design provides adequate stability.

A timber lattice roof, which has around 30m span, was constructed. In order to figure out the realistic buckling load level, the structural analysis of this roof structure was performed especially by stiffness of connection with various asymmetric snow load. Due to the characteristics of application of snow load, the load combinations of snow should be considered not only global area but also local part so that the critical buckling load could be observed as easy as possible. Geometrical imperfection was simulated to consider inaccurate shape of structure. And then nonlinear analysis were performed. Finally, this paper could investigate that the asymmetric snow load with the lower level stiffness of connection decreased the level of buckling load significantly.

Various social and environmental problems have recently emerged due to global climate change. In South Korea, coniferous forests in the highlands are decreasing due to climate change whereas the distribution of subtropical species is gradually increasing. This study aims to respond to changes in the distribution of forest species in South Korea due to climate change. This study predicts changes in future suitable areas for Pinus koraiensis, Cryptomeria japonica, and Chamaecyparis obtusa cultivated as timber species based on climate, topography, and environment. Appearance coordinates were collected only for natural forests in consideration of climate suitability in the National Forest Inventory. Future climate data used the SSP scenario by KMA. Species distribution models were ensembled to predict future suitable habitat areas for the base year (2000-2019), near future (2041-2060), and distant future (2081-2100). In the baseline period, the highly suitable habitat for Pinus koraiensis accounted for approximately 13.87% of the country. However, in the distant future (2081- 2100), it decreased to approximately 0.11% under SSP5-8.5. For Cryptomeria japonica, the habitat for the base year was approximately 7.08%. It increased to approximately 18.21% under SSP5-8.5 in the distant future. In the case of Chamaecyparis obtusa, the habitat for the base year was approximately 19.32%. It increased to approximately 90.93% under SSP5-8.5 in the distant future. Pinus koraiensis, which had been planted nationwide, gradually moved north due to climate change with suitable habitats in South Korea decreased significantly. After the near future, Pinus koraiensis was not suitable for the afforestation as timber species in South Korea. Chamaecyparis obtusa can be replaced in most areas. In the case of Cryptomeria japonica, it was assessed that it could replace part of the south and central region.

In this paper, the instability of the domed spatial truss structure using wood and the characteristics of the buckling critical load were studied. Hexagonal space truss was adopted as the model to be analyzed, and two boundary conditions were considered. In the first case, the deformation of the inclined member is only considered, and in the second case, the deformation of the horizontal member is also considered. The materials of the model adopted in this paper are steel and timbers, and the considered timbers are spruce, pine, and larch. Here, the inelastic properties of the material are not considered. The instability of the target structure was observed through non-linear incremental analysis, and the buckling critical load was calculated through the singularities and eigenvalues of the tangential stiffness matrix at each incremental step. From the analysis results, in the example of the boundary condition considering only the inclined member, the critical buckling load was lower when using timber than when using steel, and the critical buckling load was determined according to the modulus of elasticity of timber. In the case of boundary conditions considering the effect of the horizontal member, using a mixture of steel and timber case had a lower buckling critical load than the steel case. But, the result showed that it was more effective in structural stability than only timber was used.

목구조에 있어서 횡력에 저항하는 전단벽의 역할은 대단히 중요하다. 특히 이 목조 전단벽은 다양한 수종의 스터드 와 다양한 판재, 접합철물로 제작되어 재료의 성능을 특정하기가 쉽지 않다는 어려움이 있다. 따라서, 구조설계에서 초기단계에 서부터 적용해야하는 경골목조 전단벽의 환산 전단성능값을 미국, 캐나다, 일본 그리고 국내기준의 설정방법을 통하여 파악해 보고자 하였다. 분석결과 국내 경골목구조기준과 소규모 건축기준에서 기본사양으로 제시하고 있는 2×4의 스터드에 두께 11㎜ 의 OSB를 적용한 기본 전단벽의 허용전단력은 3.5~4.5 kN/m의 범위, 또한 환산 전단강성값으로는 1100~1150 kN/m정도로 설계 하는 것이 가능할 것으로 나타났다. 특히, 국내기준은 국외기준에 비하여 상대적으로 큰 전단내력을 허용하고 있는 것으로 나타났고, 현재 기준에서와 같이 북미기 준과 동일한 전단강성을 활용할 경우, 재료의 비선형거동 때문에 실제 변형량을 과소평가할 가능성이 있어, 허용응력의 설정범 위와 전단강성값의 산정기준을 조정하여야 할 필요가 있는 것으로 파악되었다.

In this study, we focus on the feasibility of structural topology optimization for a steel-timber composite beam design of optimally allocating glue-laminated timbers into a web with openings under the condition of given steel flanges. The motivation of this study is to topologically take maximal stiffness harmonizing both tension and compression performance of the steel-timber composite beam and become the eco-frandly timber design for buidling members. As a result of this study, the key web-openings allocation becomes triangle spaces, i.e., empty or no materials, of optimal topologies of both a pure timber plate and a steel flange-web timber plate without web-openings. Several applicable examples verify the effectiveness of topology optimization for steel-timber beams with web-openings.

Local non-timber forest products can be easily accessed by tourists. These also provide opportunities for tourists to experience the local culture. Many local governments are paying constant attention to the development of non-timber forest product brands to revitalize the local economy and increase the profits of local farmers. Although there are many forest products and tourism resources in each region of Korea, there is no local specialized strategy to sell non-timber forest products and promote consumers' purchase intentions. In this study, we aimed to explore the consumers’ perceived creating shared value (CSV) and its association with purchasing behavior of non-timber forest products in Jeongeup city, Korea. Data were collected from 1,066 consumers who had purchased non-timber forest products. Purchasing patterns of local specialty products differed depending on consumers’ perceived CSV levels. In addition, consumers with higher levels of perceived CSV showed higher awareness and familiarity with Jeongeup city and experienced Jeongeup city’s non-timber forest products. Our findings suggest that improving consumer perception towards CSV of non-timber forest products can be used as a marketing strategy for local non-timber forest products to revitalize the local economy.

1. 이 연구는 목재합법성 제도의 핵심이라 할 수 있는 실사 체계의 요건을 ISO 위험 관리 표준과 국외 우수 사례분석을 통해 탐색·분석함. 2. 이 연구는 ISO 위험 관리 표준에 기반하여 불법목재 위험 관리 실사체계에서 주요하게 다루어야 하는 요건을 1) 위험 정의, 2) 위험 평가, 3) 위험 조치, 4) 모니터링 및 검토, 5) 기록 및 보고 등 다섯 가지로 설정하고, 이 분석틀을 기반으로 호주의 목재합법성 제도 내 실사체계를 분석함. 3. 호주의 목재합법성 제도 실사체계는 ISO 표준에 비추어 불법목재 위험성을 효과적으로 관리하기 위한 요건을 세부적으로 잘 갖추고 있었기에 우리나라의 실사체계 설계 시 벤치 마킹이 용이한 우수 사례임. 4. 이 연구는 국외 사례 조사를 통해 우리나라의 합법목재 교역촉진제도 내 실사 체계 수립 및 운영에 대한 의미 있는 정책 제언을 제공할 수 있을 것으로 기대함. 5. 특히 우리나라가 2019년도에 도입한 합법목재 교역촉진 제도의 실사체계 구축을 위한 논의가 현재 진행되고 있는 바, 본 연구가 제공하는 구체적인 실사 틀과 실사 요건에 대한 고 찰이 우리나라 임업정책에 시사하는 바가 큼.

한국 정부는 2012년에 ’목재의 지속가능한 이용에 관한 법률’을 제정하고 합법벌채된 목재 또는 목재제품의 유통·이용에 대한 국가차원의 관리체계를 마련하였다. 이를 위해 산림청은 세부 시행체계를 마련하고 제도의 실효성을 높이기 위해 다음과 같이 노력을 기울여 왔다. 1.산업계에 미칠 영향을 사전 조사하고 의견 수렴 2.정부·공공기관·연구기관(산림청, 한국임업진흥원, 국립산림 과학원, 순서대로)으로 구성된 태스크 포스팀 조직, 로드 맵 제시 3.제도에 대한 인지도와 참여의사에 관한 조사 수행 4.우선 대상 품목 선정, 시범운영 기간 동안 단계별로 적용 품목 확대 5.관세청의 전자통관시스템과 산림청의 목재자원관리시스템을 연계, 이중 행정절차 간소화 및 수입검사 기능 전산화 실현 6.국가별 표준가이드 및 사전진단서비스를 제공, 영세한 수입업자를 보호하는 제도적 장치 마련. 끝으로 합법목재 교역촉진제도의 정착을 위해 선행되어야 할 네 가지 사항을 아래와 같이 정리하였다. 1.국가 차원의 제도 조기정착을 위한 정책적 지원역할 강화 2.제도 활성화를 위한 인센티브 마련과 사후관리 필요 3.국내·외 조성된 목재자원의 유통, 이용을 위한 시스템 활용 확대 4.민관 협력체계와 시민사회 모니터링이 활성화될 수 있는 환경 조성.