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Predecessor
Volume 38, Issue 8
Displaying 1-9 of 9 articles from this issue
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Takashi Kitahori2000 Volume 38 Issue 8 Pages 3-12
Published: August 01, 2000
Released on J-STAGE: April 26, 2013
JOURNAL FREE ACCESSIn recent years, super high-rise reinforced concrete housings of over 60 m become to be built a lot. In our country, the structural design of the main structure department material in the reinforced concrete building is decided by the earthquake resistance design mainly. However, as for super high-rise reinforced concrete housings, the habitability problem to the wind-induced vibration for high wind is importance. Especially, the habitability for high wind brings about a big influence from the structure design about over 150 m of height buildings. This report introduces the contents of the limit state design method regarding the habitability for high wind, and explaining the calculation method in detail. The purpose is good use for designer of super high-rise reinforced concrete housings.View full abstractDownload PDF (1302K) -
S. Mori, H. Harasawa, K. Takei2000 Volume 38 Issue 8 Pages 13-21
Published: August 01, 2000
Released on J-STAGE: April 26, 2013
JOURNAL FREE ACCESSThis paper describes the state of the art concerning materials and welded joints in reinforcing steel bar. In comparison with other joints, the properties and the quality of welded joint can be obtained through the optimum welding procedure with related material, due to the thermal and forming process of welding. Introducing material/welding standards, classification and characteristics of welded joints in other countries, the authors emphersize the necessity of establishing own standards concerning weldable material, welding procedure and welder. Then the recent development of welding method, such as flash welding, is also introduced for high and ultra-high strength materials.View full abstractDownload PDF (25134K) -
Y. Watabe, R. Horyo, S. Sato, M. Oyama2000 Volume 38 Issue 8 Pages 22-32
Published: August 01, 2000
Released on J-STAGE: April 26, 2013
JOURNAL FREE ACCESSBarrier-free correspondence, variable compatible of the plan in future are required to the habitation in recent years. The building construction to lack by arranging a void inside the reinforced concrete slave deliberately to meet these requests and cutting a surface in the water turn past is often used. When applying existing design technique to this building construction, it doesn't always become the accurate and rational design. Therefore, it did the cooperation research the purpose of which was the development of the new design technique. In this paper, it reports on the experimental examination of the numerous species and the analyzing examination result, which was done to make the problem which was extracted to develop a new design technique clear.View full abstractDownload PDF (34985K) -
M. Nakai, Y. Shioi, A. Hasegawa, K. Tuda2000 Volume 38 Issue 8 Pages 33-39
Published: August 01, 2000
Released on J-STAGE: April 26, 2013
JOURNAL FREE ACCESSThese specimens consist of precast blocks stacked by applying epoxy resin on end surfaces of them and prestressing. Prestress is 1 N/mm2. After concrete blocks are piled up, re-bars or prestressing steels as well as mortar grout are inserted into ducts which pass through the blocks.
This report describes the results of a series of seismic performance experiments for specimens and the characteristic experiments of mortar. The characteristics of mortar are compressive strength, retardation and bleeding.
As a result, the following matters are confirmed :
(1) Strengths of precast specimens are the same as that of cast in-place specimen.
(2) Deformation performances of precast specimens are better than that of cast in-place specimen.
(3) All of the precast specimens which are inserted the re-bar have as same energy absorption performances as cast inplace specimen.
(4)The characteristics of this mortar are suitable for field condition.View full abstractDownload PDF (17349K) -
K. Shito, Y. Kamihigashi, S. Nojima, A. Yoshida2000 Volume 38 Issue 8 Pages 40-54
Published: August 01, 2000
Released on J-STAGE: April 26, 2013
JOURNAL FREE ACCESSCracks and spalls on the surface of concrete structures due to premature deterioration have been arising as a social issue, recently. Therefore, rehabilitation projects by placing new concrete around existing concrete are increasing in order to repair deteriorated concrete structures and to retrofit seismically. However, the design standard and it's engineering proof to combine new and old concrete, such as required bond characteristics and the methods to create roughened surface internationally, are not clearly established yet. This paper describes our research results that enable both CD surface preparation technology and c removal technology to be applied to actual concrete repair works. When combining new and old concrete to repair, strengthen, recover functioning of structures, these technologies are essential for the combined structure resisting external forces as one solid member.View full abstractDownload PDF (40946K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese]2000 Volume 38 Issue 8 Pages 56-61
Published: August 01, 2000
Released on J-STAGE: April 26, 2013
JOURNAL FREE ACCESSDownload PDF (21092K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese]2000 Volume 38 Issue 8 Pages 62-66
Published: August 01, 2000
Released on J-STAGE: April 26, 2013
JOURNAL FREE ACCESSDownload PDF (13677K) -
[in Japanese], [in Japanese], [in Japanese], [in Japanese]2000 Volume 38 Issue 8 Pages 67-70
Published: August 01, 2000
Released on J-STAGE: April 26, 2013
JOURNAL FREE ACCESSDownload PDF (7294K) -
2000 Volume 38 Issue 8 Pages 54
Published: 2000
Released on J-STAGE: February 07, 2014
JOURNAL FREE ACCESS
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