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Volume 137
Displaying 1-10 of 10 articles from this issue
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Article type: Cover
1967 Volume 137 Pages Cover1-
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSDownload PDF (38K) -
Article type: Cover
1967 Volume 137 Pages Cover2-
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSDownload PDF (38K) -
Article type: Index
1967 Volume 137 Pages Toc1-
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSDownload PDF (35K) -
[in Japanese], MINORU WAKABAYASHI, TASUTOSHI SUENAGAArticle type: Article
1967 Volume 137 Pages 1-8,47
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSWhen the rectanguler Rahmen structured by steel-concrete is subjected to horizontal forces, the panel portion jointing a beam and a column is to be subjected to shearing forces, and then we can observe sometimes diagonal tension cracks on this portion. And also on the steel structure, sometimes, web plates at the panel portion are yielded by shearing stresses, and in these cases formulae to check have been proposed. On steel-concrete structures, cooperating with steel web and concrete, is to contribute to increase the shearing resistance at the panel portion, and therefore it is uneconomical to neglect the cooperation of concrete, and to reinforce web plates in the panel. On the beam with high depth such as a wall-girder, we can save the amount of steel by dividing a gusset-plate passing through into two parts the upper and the lower. Of such type of panels, there are Dr. Takada's studies on thier shearing resistance. In these studies, when the shearing stress in concrete at the panel reaches at from 0.15Fc to 0.20Fc, the diagonal cracks appear. However, as the ultimate strength is determined by bending failure at the end of beam or column, and as this resisting strength is not influenced by diagonal cracks, it is concluded that we need not consider the shearing stress in the panel portion when designing, if we can well fill concrere into the panel. Furthermore, there are experimental studies by Dr. Naka, Mr. Umezawa and the others, mainly on the relation of the shearing resistance of the panel and the grouting of concrete at joint panel of composite concrete structure with wide flange-steel. And they concluded with any specimens that the jointing panel, because of being cooperated by concrete does not failure even when the steel web is considerably thin. This experimental study was held to comfirm the shearing resistances at the joint panel of filled-type steel-concrete with wide-flange steel. By above mentioned investigation it has been approved that shearing failure of the panel doesn't occur in ordinary section. So, in this study we designed the panel to occur shearing failure, with especially disad-vantageous condition for the panel, for example, enlarging the area-ratio of main steel members. And thus we intend to to comfirm quantitatively the shearing resistance of concrete at the panel, and whether the additional formulae of the strength of concrete and steel web can be held.View full abstractDownload PDF (1120K) -
NOBUYOSHI HISAMITSU, SUGURU SAKAMOTOArticle type: Article
1967 Volume 137 Pages 9-16,47-48
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSPresented in this paper is the study for the shearing strength in the steel pipe filled with concrete. Eight kinds of model specimens having different R/t (R : mean radius in steel pipe, t : thickness) were tested. From this study, the following conclusion can be drawn. The approximate design formula for the shearing strength of the corner connection subjected to lateral force was obtained from eq. (9).View full abstractDownload PDF (1216K) -
KOICHIRO HEKIArticle type: Article
1967 Volume 137 Pages 17-23,48
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSIn this paper, the theory of stress analysis of plates, composed of anisotropic layers, is established under the assumptions of Kirchhoff. And its applications to some space structures such as double layered space trusses and stiffened plates with grid ribs are described. In chapter I, general theory and their characters are discussed. Some characters of plates are clarified and classified according to the relations of stretching D^<ijkl>, bending K^<ijkl> and reciprocal S^<ijkl> rigidities, as follows. If the rigidities, whose superscripts i+j+k+l is odd, are zero, the plate is orthotropic, and adding the condition : R^<iiii>=R^<iijj>+2R^<ijij> (i=⃥j, R for D, K, S), the plate becomes isotropic. S^<ijkl>=0 is the condition of the separation of plate action (stretching) and disk action (bending) each other. The separation condition of tangential displacements from normal one in the differential equations is S^<iiii>=S^<ijjj>=0 and 2S^<ijij>+S^<iijj>=0 (i〓j). And if the plates are orthotropic or other special cases, the sine system and cosine system in Fourier series are separable. In chapter II, double layer plates and idealized sandwich plates are discussed. Even if both layers are isotropic, the plate and disk actions are not separable except the cases where both Poisson's ratios are equal. In chapter III, the analogy between sandwich plates and double layered space trusses is discussed. Plane trusses are firstly compared with homogeneous disks and their stretching rigidities in plane are derived, then the theory of anisotropic sandwich plates is applied to them. So the effective rigidities of double layered space trusses are derived and these trusses can be analized by the theory described in chapter I, II. In chapter IV, the grid systems composed of beams, which have bending and twisting elasticities, are discussed. On these systems, the character of bending rigidity tensor differs from that of homogeneous layered plates. But considering this character, it can be posible to analize the composit plates, some of whose layers are grid systems.View full abstractDownload PDF (770K) -
TSUNEO IWASHITAArticle type: Article
1967 Volume 137 Pages 25-32,48
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSThe obtained results for the shear walls without opening by a lattice analogy method have been reported in the Part I, II, III. In this report, the deformations of the three-storied walls with opening under the uniformly distributed lateral loads are investigated. The types of the opening used in this paper are of three kinds, rectangular, long widthwise and lengthwise respectively, as shown in Fig. 1, and the sizes of these walls are given in Table 1. The main results obtained are as follows : 1. The deflection curves for each wall are affected considerably by the types of the opening. Moreover, the effects of the widthwise opening on the lateral deflection are strongest, the rectangular come second. 2. The lateral deformation curves of the wall with the rectangular opening differ little together for ξ≤0.4, but when ξ is larger than 0.4, the curves for each wall are not closely. 3. Except the case that the opening area is very large, if the opening area are equal, the lateral stiffness of the wall with the rectangular opening is the highest and the longwise is the least. 4. When the opening area is relatively small, if Eqs. (5) and (6) for the wall with the rectangular opening, Eqs. (5) and (7) for the widthwise and Eqs. (4)(8) for the lengthwise are used respectively, the lateral deflections of each wall could be calculated, which agree well with the values may be obtained by the lattice analogy.View full abstractDownload PDF (857K) -
TAKASHI SHODA, MORIMASA ITAMOTOArticle type: Article
1967 Volume 137 Pages 33-37,49
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSSteel pipe ducts studied here are used as a part of columns in multi-storied buildings. The steel pipe ducts have two or four branch outlets in ceiling plenums. Experimental methods to evaluate air flow and noise characteristics of five types of the joints and the results of measurements are described. Pressure loss for the branch outlets and sound power level radiated from an outlet generaled by air flow at the joints of the steel pipe ducts are discussed.View full abstractDownload PDF (935K) -
SYOJI YOSINOArticle type: Article
1967 Volume 137 Pages 39-45,49
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSFrom the points of view, that the present pattern of not by the small agricalutural settlements, as the residental point in rural district, shoud be redeveloped, this report treats some subject, land use, location of settlement and conclusion on the report (1) or (2).View full abstractDownload PDF (990K) -
Article type: Appendix
1967 Volume 137 Pages 50-
Published: July 30, 1967
Released on J-STAGE: August 22, 2017
JOURNAL FREE ACCESSDownload PDF (20K)
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