Search Results (5)

This study analyzes the results of a displacement measurement of the Sungnyemun Gate’s structural members, such as column, girder, and hip rafter, carried out by the National Institute of Cultural Heritage for about 10 years from December 2013 to October 2022. Through this, we attempt to examine the behavior of wooden architectural heritage sites according to seasonal changes and infer the factors influencing structural deformation. As a result of the analysis, it was confirmed that the structural members of the Sungnyemun Gate, including the columns, girders, and hip rafters, continued to move and that the displacement of members was accumulated, and the structure was deformed. It was also confirmed that member displacements accumulated in a specific direction. In the case of the Sungnyemun Gate, the column leaning south, the hip rafters’ endpoint sagging, and the girders’ center deflecting were continuously observed. Furthermore, the behavior of wooden architectural heritage sites, where displacement accumulates as it undergoes repeated deformation and recovery according to seasonal changes, was also revealed in detail. The deformation of the Sungnyemun Gate’s members shows a pattern that reflects the mechanical properties of wood, which repeatedly increases and decreases displacement depending on the season. However, seasonal deformation did not appear the same in all the members. Even the same member has an uneven drying speed due to differences in the amount of sunlight it receives depending on its location, which leads to uneven distribution of deformation. The significance of this study is that it examined the behavior of a wooden architectural heritage site in detail based on the quantitative results of long-term measurements and prepared primary data for the future management of wooden architectural heritage sites. Full article

Graffiti makes a city’s landscape beautiful while simultaneously being considered illegal and violating a city’s cleanliness and respect for public spaces. To solve these problems, we present metaverse virtual-world technology. Within the metaverse, graffitists can freely create, share works, and express themselves through graffiti art by virtually reproducing the walls or public facilities of a city. The created virtual space used by the graffitists in this paper is Sungnyemun, a traditional Korean heritage site. When comparing Roblox PC content and VR content experiences through IPQ surveys, it was confirmed that participants in the VR content experienced a high level of realism and local presence. Accordingly, there is a new possibility for graffiti to be recognized as a form of urban culture and artistic expression through the metaverse. Full article

Previous research has agreed that standard modular methods in Song Yingzao Fashi and Qing Gongcheng Zuofa were not applied to Korean wooden architecture. This study notes the size of bracket arms as a standard modular method by investigating the proportion systems of Sungnyemun, Paldalmun, and Heunginjimun Gates, the official government buildings of the Joseon Dynasty. The purlin direction bracket arms in the intercolumnar bracket sets apply a proportional system in the ratio of a regular integer relationship to the front and side facades and building height. Challenging current assumptions, the application of the bracket arm width as a modular rule is divided into more subdivided values than the measurement units. A particularly important finding is that, unlike the height of the bracket arms, the width and length of the brackets are standard members that determine the height of the side facades. This is very similar to the official government building styles in the Song and Qing Dynasties, premodern China. Therefore, this study is meaningful in reassessing wooden frame structures of the Joseon era, deriving parametric measuring rules universally applied in East Asia to provide basic data useful for heritage conservation. Full article

In this study, we performed customized ultrasonic measurements of the stone block foundation of the Sungnyemun Gate, which is representative of the stone architectural heritage in the Republic of Korea. Furthermore, the weathering evaluation standards, which are extensively used in stone heritage, were improved considering the type of rock and its provenance site. In particular, the absolute weathering grade used the ultrasonic velocity (P-wave) of a universal hard rock, whereas the relative weathering grade used the differences between the ultrasonic velocities of the materials in the stone block foundation of the Sungnyemun Gate (weathered stone) and the fresh rocks in the provenance. Among these, the absolute weathering grade was observed to be constant regardless of the type of rock; however, the relative weathering grade varied depending on the type dof rock. Because the average ultrasonic velocity of the original blocks of the stone block foundation of the Sungnyemun Gate was 2665 m/s, it was estimated that their ultrasonic velocity reduced by approximately 2.1 m/s per year as compared to that observed in case of fresh rocks (average 3932 m/s) in the provenance site. Furthermore, the weathering evaluation exhibited that there were approximately two stages of difference between the original blocks and the new blocks. As compared to the relative weathering grade, the absolute weathering grade was observed to underestimate the overall ultrasonic velocity of the stone block foundation of the Sungnyemun Gate. This study presents a customized method for performing ultrasonic measurements and for evaluating weathering. It is assumed that the results of this study will be extensively used in diagnosing and monitoring the stone architectural heritage. Full article

This article explores the changing values of heritage in an era saturated by an excess of media coverage in various settings and also threatened by either natural or manmade disasters that constantly take place around the world. In doing so, we focus on discussing one specific case: the debate surrounding the identification of Sungnyemun as the number one national treasure in South Korea. Sungnyemun, which was first constructed in 1396 as the south gate of the walled city Seoul, is the country’s most acknowledged cultural heritage that is supposed to represent the national identity in the most authentic way, but its value was suddenly questioned through a nationwide debate after an unexpected fire. While the debate has been silenced after its ostensibly successful restoration conducted by the Cultural Heritage Administration in 2013, this article argues that the incident is a prime example illustrating how the once venerated heritage is reassembled through an entanglement of various agents and their affective engagements. Methodologically speaking, this article aims to read Sungnyemun in reference to the growing scholarship of actor-network theory (ANT) and the studies of heritage in the post-disaster era through which to explore what heritage means to us at the present time. Our synchronic approach to Sungnyemun encourages us to investigate how the once-stable monument becomes a field where material interventions and affective engagements of various agents release its public meanings in new ways. Full article