| Vol. - No. | Vol.8 - No.3 |
|---|---|
| Date | Sep., 2019 |
| Title | Editor's Note |
| Contents |
The 2019 China-Japan-Korea Tall Building Forum was held on July 5th in an ancient city, Nara, Japan. This issue of the IJHRB is composed of the technical papers presented at this forum. Prof. Xuhong Zhou from Chongqing University submitted a technical paper on the development of steel-tubed concrete structures named STRC and STSRC and those applications to some high-rise buildings. Dr. Kwangryang Chung from Dongyang Structural Engineers Co., Ltd. provided analytical studies and structural designs of outer mega braced frame system for two tall buildings currently projected in Seoul. Mr. Yoji Ishibashi from Mitsubishi Jisho Sekkei Inc. presented a performance-based seismic design of a 212m-high overhanging building in which the "Lower Stories Concentrated Vibration Control System" using oil dampers and viscous wall dampers is installed. Mr. Lishan Xu from China Construction Third Engineering Bureau Group CO., LTD. introduced key construction technologies of "China Zun" in Beijing such as integrated construction platform, the Jump-Lift Elevator, temporary-and-permanent fire protection systems, BIM application and so on. Prof. Hong-Gun Park from Seoul National University provided analytical and case studies on corner steel-plate-reinforced RC core wall system for high-rise buildings. Mr. Takumi Tsushi from Takenaka Corporation presented a structural design of a residential high-rise building using the ultra-high strength (120-130 MPa) concrete with steel fibers and more than 750 vibration control viscous and friction walls. Mr. Lianjin Bao from East China Architectural Design & Research Institute introduced two supertall connected buildings currently projected in China and mentioned those structural solutions and connecting effects. Prof. Jinkoo Kim from Sungkyunkwan University described the building damages due to Pohang earthquake in 2017 and the following development of seismic retrofit devices such as corner rotational friction dampers, steel slit dampers, slit-friction hybrid dampers and so on. Mr. Takashi Kato from Kajima Corporation presented a structural design of a 192m-high building using newly-developed high-performance oil dampers with the world's first energy recovery system, by which the energy absorption efficiency of the building can actually reach 4 times that by conventional dampers. In the end, I would like to express my appreciation to all authors for their efforts and contributions on this issue. Also, the supports of IJHRB Chief Editor Professor Emeritus Kim Sangdae, Korean Council on Tall Buildings and Urban Habitat, China International Exchange Committee for Tall Buildings and CTBUH Japan Structures Committee are greatly appreciated. |