In the Joseon Dynasty, ‘Bocheom’ had the function of a shade, but in that it was a building that applied the construction method, it had a different structure and character from the shade as a simple facility. If Bocheom was placed on all four sides of the main building, the roof would be structured as a double-layer, making the entire building grand and splendid, so it was mainly adopted in authoritative architecture. The materials of Bocheom was significantly smaller than that of the main building, and it had square rafters on the roof, and no beams were installed between the Bocheom and the main building. Bocheom is an additional architectural element that is clearly distinct from the main building, and it is different from architecture where the roof is formed in layers and the floor plan is composed of the inner and outer floor. The outer and inner floor constitute a single building, but Bocheom is distinct from the main building. If the outer floor are removed, the building cannot be established, but even if Bocheom is removed, the proportions and function of the main building are maintained. Bocheom is an additional architectural element that makes the building grand and splendid and helps with the conduct of ceremonies, and for this reason, it was adopted in authoritative architecture of the Joseon Dynasty.

Most of the variable shading devices are installed outdoors, so they are greatly affected by structural safety due to external climate change, wind, rain, and snow. Especially, due to strong wind such as typhoons, safety problems may occur due to the dropout of the device. Therefore, it is necessary to secure the structural safety against the wind. Therefore, it is necessary to analyze the structural behavior of the windshield to evaluate the structural safety of the variable sunshade device. In this study, we analyze the wind pressure applied to the shading material according to the change of the length of the variable shading device, and apply it to the calculation of the wind load for the structural design of the variable shading device. The CFD (Computational Fluid Dynamic) analysis of the structure of the sample was used to analyze wind pressure magnitude and distribution. In order to estimate the wind pressure, the maximum wind loads of the static and negative pressures acting on the structure were analyzed from numerical simulation results.

This study is about comparison of thermal and flow characteristics on the wind & radiant heat shield with STS mesh type screen for offshore plant. Numerical analysis was conducted to find transmission coefficient in the mesh and then analyse the flow characteristics about wind & radiant heat shield. The experiment method of solar radiation has been used as thermal radiation source to get the performance of radiant heat shield measurement. The sensor radiation device has been used to measure the reduction of solar radiation with various size of cells and at a distance of 0.5m and 1m from the cold face of the wind & radiant heat shield. The present study show reduction in radiation heat flux as various distance from the cold face of the radiant heat shield. Experimental results are presented for different type of mesh and distance of measurement.

The purpose of this study is to improve the fire prevention performance using the fire venetian blind louver subjected to burning by fire flame. The investigation is based on testing 2 full scale specimens, which is 3m × 3m module, 850 × 1500mm open, and 900mm × 900mm × 175mm venetian blind louver. Two louver thickness (1.5 and 2.0mm) were adopted. The specimens were exposed to fire flame temperature levels of ISO834 at the lower surface of the fire venetian blind louver specimens with exposure duration of one hour in Korea Institute of Construction Technology (KICT). It was found from the test results that the values of distributed temperature, decreased for all specimens for protecting to fire flame by venetian blind louver. The results of tests were a good fire prevention performance between in initial to 6 mins. At 60 minutes around ISO 834 fire loading, the percentages of distributed temperature in 500mm and 800mm height ranged between 11 and 10% respectively, regardless of louver thickness. This study, therefore, will improve the fire venetian blind louver for fire protection and prevention performance.