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Volume 90
Displaying 1-11 of 11 articles from this issue
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Article type: Cover
1963Volume 90 Pages Cover1-
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSDownload PDF (28K) -
Article type: Cover
1963Volume 90 Pages Cover2-
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSDownload PDF (28K) -
MINORU HAMADA, KOICHI KISHITANI, HIROSHI MORIMOTO, KAJUO AKITAArticle type: Article
1963Volume 90 Pages 1-7
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSTests on flammability of ordinary fabrics and plastic films presently being sold on the market were conducted at the University of Tokyo, Building Research Institute of the Ministry of Construction and the Fire Prevention Board Laboratories in accordance with Japanese Industrial Standards and Fire Prevention Board Laboratory Standards as a part of research on flame retardation of materials chiefly used in building work. Results show that eighteen of thirty-seven fabrics tested were completely combustible and seven possessed flame retardant qualities while twelve specimens melted. Of the ten plastic films tested five were combustible while the remainder melted indicating that fabrics and plastic film now being marketed are mostly of a combustible nature,View full abstractDownload PDF (842K) -
MASAO NARUOKA, KENJI NAKAGAWAArticle type: Article
1963Volume 90 Pages 8-12
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSIn former report, the authers dealt with the dynamic response of a steel stack of electric power plant with 120m height for EL CENTRO Earthquake (May 18, 1940). But every bind of damping force was neglected in its analysis. Therefor, the authers, as one of the successive work, analysed the dynamic response of the same stack with damping force. The various pattern of damping force and numerical values of damping coefficients were considered, and for these case, the maximum dynamic responses were calulated to make clear some aspects of dynamic behaviour of the tall structures.View full abstractDownload PDF (579K) -
HIROSHI MUGURUMA, SHIRO MORITAArticle type: Article
1963Volume 90 Pages 13-18
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSThe use of the ordinary straight line theory for calculating the flexural rigidity of reinforced concrete beams has not met with success, essentially because beam deflection is affected by plastic deformations in the compression zone of the concrete and also by the co-operation of the concrete between cracks with the tensile reinforcement. Under the consideration of these effects, it was attempted in this investigations to formulate the principles of the theory for calculating the opening up of cracks and the flexural rigidity in reinforced concrete bending members. In developing the theory the concept of the mean deformation of tensile reinforcement in concrete along the sections between cracks was introduced. This concept was comfirmed by the results of our past experiments on axially reinforced concrete prisms subjected to tension. Furthermore, the formulae developed in this study was verified by means of experiments on simply supported reinforced concrete beams having the various distributions of tensile reinforcements.View full abstractDownload PDF (780K) -
KENZO WASHIO, YOSHIAKI KUROBANE, YORIJI SENO, TAKESHI TOGOArticle type: Article
1963Volume 90 Pages 19-24
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSThe test results on the gusset-tube joints under compressive and tensile load acting in the direction of tube axis are presented in this report. When the compressive loads were applied to the joints having single gusset plate, large local deformations of the cross section at the tubes were produced in the vicinity of welding lines. This resulted in the unstable state of the joints. No failure was observed in the weld zone itself. It was concluded that the weld length was one of the factors influencing the strength of the joints, not as a quantity which affected the strength of the welds in the joints, but as a quantity which affected the local deformation of the walls of the tubes. For the joints loaded in tension, cracks began at the points of contact of gusset ends with the tube slots or at the portions along the weld lines. Joint efficiencies were not more than 85 to 90% even for the joints which had sufficiently long weld length, probably due to the flaw in the welds at the gusset ends. Minimum weld length l required to obtain the efficiency of 85% could be determined by l=1.15D, where D was the outer diameter of the tubes. The joints which had double gussets (U-shaped gussets) were torn at the cross sections of the tubes just below the weld line accompanying large opening deformations of gussets under tensile load. It was inferred that the half segments of the tubes divided by gusset plates were loaded in eccentric tension for the joints of double gussets type. The strength of these joints was lower than that of the joints having single gussets.View full abstractDownload PDF (1089K) -
YOSHINOBU AOYAMAArticle type: Article
1963Volume 90 Pages 25-30
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSThis report is based on the researches for about 80 farm hausses in Saga prefecture which were built in Edo period. These farm hauses are well known from the roof forms curving "〓" style. But there are many other styles as follows. These roof forms are able to be divided into four basic types. I) Sugoya; rectilinear ridge of roof (among the mountains) II) Tsunoya; "〓" and "〓" types (at the foot of mountains) III) Magariya; "〓" type (in the plain) IV) "□" type (at the reclamated field) There are only two types of plans in spite of these various types of roofs. (1) Hiroma type (three rooms types) (2) Longtudinally partitioned rooms type The connection of these plans and roofs are not simple, I) type roofs have always (1) type plan and IV) type roofs have always (2) type plan, but III) type roofs have (1) or (2) types plans. The oldest farm hauses in Saga prefecture have (1) type plan, which exist over the whole country. These hauses were built at early Edo period, but the (2) type plan at middle period.View full abstractDownload PDF (1159K) -
Article type: Bibliography
1963Volume 90 Pages 31-
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSDownload PDF (113K) -
Article type: Index
1963Volume 90 Pages 33-
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSDownload PDF (63K) -
Article type: Index
1963Volume 90 Pages 33-
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSDownload PDF (63K) -
Article type: Bibliography
1963Volume 90 Pages 34-A33
Published: October 30, 1963
Released on J-STAGE: August 30, 2017
JOURNAL FREE ACCESSDownload PDF (155K)
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