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Article type: Cover
1975Volume 237 Pages
Cover1-
Published: November 30, 1975
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Article type: Cover
1975Volume 237 Pages
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Published: November 30, 1975
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Article type: Index
1975Volume 237 Pages
Toc1-
Published: November 30, 1975
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Article type: Appendix
1975Volume 237 Pages
App1-
Published: November 30, 1975
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HIROZO ISHIKAWA
Article type: Article
1975Volume 237 Pages
1-14
Published: November 30, 1975
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HIROSHI NAKAMURA
Article type: Article
1975Volume 237 Pages
15-22
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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This is the second of the three parts of the paper. In the present part, the following sections are dealt with : In the section 1, a policy how to calculate the additional costs of the main factors (the main additional costs) is described. In the first place, the main additional costs are to be calculated by the winter measures. Secondly, the output items of each winter measure are set up. Lastly, the basic programs of calculating the output items are examined. In the section 2, the estimation treatment data are established. The estimation treatment data are such as the capacity of heaters and man-hour required for coverings, whose concrete values are to be set up in advance for the purpose of simplifying the calculation program of the main additional costs. In the section 3, the summary of this part is stated.
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MASATOSHI NAKANISHI
Article type: Article
1975Volume 237 Pages
23-32
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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In Part 1, atmospheric temperature variation as a cause of concrete cracking was reported. In this paper reported are the test results of creep of concrete in flexure subjected to increasing stresses in short-term (12 hours) loading corresponding to the short-term variation of atmospheric temperature. For the experimental study of the creep, prisms of 10×10×40cm were used. They were made of ordinary Portland cement, river sand and river gravel with three water/cement ratios of 0.45, 0.55 and 0.65 respectively. A part of the specimens was cured under water at the temperature of 20 degree centigrade until the test age of 3, 7, 28, 91 and 180 days. The rest was stored in the dry air at the temperature of 20 degree centigrade and 50% R. H. until the test age of 28, 91 and 180 days. The specimens were subjected to increasing stresses by stepped method with maximum stress-strength ratio 0.8. The results obtained are as follows : The creep coefficient of the specimens cured under water at the temperature of 20℃ until 28〜180 days were 0.4〜0.6, and that cured at 20℃, 50% R. H. until 28〜180 days were 0.1〜0.3. The creep coefficients mentioned above were much smaller than that obtained from the specimens subjected to a constant stress for a long time.
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MASAYASHI KAKIZAKI, KAZURO SASAGAWA, WATARU KAWAZU, MASAHIRO YOSHINOBU
Article type: Article
1975Volume 237 Pages
33-44
Published: November 30, 1975
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MASAHIDE TOMII, TETSUO YAMAKAWA
Article type: Article
1975Volume 237 Pages
45-57
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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The relations between the nodal external forces and the nodal displacements on the boundary frames of rectangular elastic framed shear walls are revealed in matrix forms. The general stiffness matrix and general flexibility matrix are expressed in terms of the fundamental flexibility matrix given analytically or experimentally. The fundamental flexibility matrix for symmetric rectangular framed shear walls assumed to be isotropic elastic bodies can be given by using the strict elastic analyses reported by M. Tomii and his partners, and the elements of the general stiffness matrix and general flexibility matrix for the framed shear walls are expressed in terms of the elements of the fundamental flexibility matrix. The load terms and rigid-body motion terms in the relations are also mentioned. The relations revealed in this paper can contribute to matrix structural analyses for earthquake resisting framed structures in which the framed shear walls are arranged apart.
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BEN KATO, HIROSHI AKIYAMA
Article type: Article
1975Volume 237 Pages
59-65
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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Using realistic restoring force characteristics of steel rigid frames, response analyses were made up to their collapse states. Analytical results were well consistent with Housner's energy concept. The proposed procedure of aseismic limit design of steel rigid frames is summarized as followings. 1) Calculate plastic deformation response of the elastic-perfectly plastic vibrational system with same natural period and same yield base shear coefficient as those of the structure dealt with (Prepared diagram such as that shown in Fig. 11 may be available). 2) Referring the restoring force characteristics pertinent to the structure, deformation response of the structure, μ^^- can be converted by eq. (4) from the value obtained in 1), μ^^-_<ep>. 3) Safety of the structure against collapse can be assured by the next criterion. μ^^-_<m.c>>μ^^- where μ^^-_<m.c> : ultimate deformability of the structure.
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MAMORU KIMURA, TOSHIRO SUZUKI
Article type: Article
1975Volume 237 Pages
67-75
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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Inelastic hehaviour of St. Venant's torsion is discussed in this paper. A yield criterion is firstly introduced taking into account the normal and the shear stresses, and then, performed is the numerical analysis of the torsion of thin steel plates, under axial yield load, which are the elements of the open cross section. Torional tests were carried out on three different grades of steel (SS 41, SM 58 and HT 80) to know the adequacy of the above analysis. Finally the torsional instability problem is described and the limiting values of width-thickness ratio is presented on the basis of the similarlity of local buckling and torsional instability.
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OSAMU MATSUOKA, TOSHIHIKO IIJIMA
Article type: Article
1975Volume 237 Pages
77-86
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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In this paper, some applications of the previous paper are analyzed, that is (1) Analysis of a tall symmetric frame of one bay subjected to a horizontal concentrated load. (2) Analysis of a vierendeel plate subjected to a sinusoidally distributed load. (3) Incremental theory. 3-1 Analysis of vierendeel frame with initial stress 3-2 Buckling loads of vierendeel frame Many practical but important problems are easily analyzed by use of the continuum mechanics theory of rods with micro-deformations. Then, this theory may be extended and applied to many important engineering problems.
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KENJI MIURA
Article type: Article
1975Volume 237 Pages
87-97
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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The purpose of this paper is to investigate the relation between the dynamic characteristics of an embedded foundation structure and replaced soil, which is burried to bridge the gap between side wall of structure and surface stratum. The analysis is performed by making use of three-dimensional wave propagation theory. Many properties of replaced soil, which effect on the dynamic characteristics of structure, can be considered, but in this paper the numerical investigation are done by picking up hardness and width of replaced soil among them. It becames clear from the numerical analysis that these properties of replaced soil influence considerably upon the dynamic characteristics of an embedded foundation structure.
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YUKIKO YAMADA
Article type: Article
1975Volume 237 Pages
99-108
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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Noises are evaluated by auditory sense and psychological influence. This paper reports and discusses the results of experiment on perception of stationary sounds. Experiment was carried out as follows. The noises used in this experiment were 192 sounds. They are pure tone, warble tone and octave band noise of 63, 125, 500, 1000, 2000, 4000, 8000 Hz (60〜90 dB, continuous sounds and intermitted sounds). Fourteen observers made to listen to and evaluate the sounds by comparing them with a standard noise (80 dB Pink noise) by Method of Magnitude Estimation. The experimental results, shown, are the geometric average of observer's data. There is great correlation between estimated noisiness and sound pressure level. In comparison of the experimental results with loudness contours (Fletcher-Munson's Robinson-Dadson's), the following became clear. 63〜1000 Hz sounds are estimated almost equivalently to Fletcher-Munson's loudness contours. In comparison of the experimental results with Steven's "Loudness Index" and Kryter-Pearsons's "Noy", 2000〜4000 Hz sounds are estimated differently to this Kryter-Pearsons's Curve. Continuous sounds are estimated noisier than intermitted sounds.
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TAKESHI GOTO
Article type: Article
1975Volume 237 Pages
109-119
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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This paper's purpose is to propose the criteria for the tall building motions with a view to inhabitants. The experimental results of human response to horizontal sinusoidal motion at period of 1 to 10 second and amplitude 1 to 50cm is presented. The human response embraces here the concepts of Psychology, Physiology, Kinesiology, Ergonomics, and the others. Then the total effect of human response to the motions is investigated based on the concept of Biomechanism as follows. (1) Human response to the motion is quite complicated. (2) Human response to the motion has a sensitive zone on the period. (3) It is seen that the subjective sensations are dominated by the head acceleration. (4) Human sensitiveness to the motion is quite high. (5) The symptoms with motion sickness vary with the individual differences of the subject. (6) Difficulty of desk work corresponds with acceleration of the motion. Finally, the criteria for the tall building motions are proposed for convenience' sake.
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MASAO AOKI, MASAKI KATAOKA, NOBUYUKI NAKAMIZO, YOSHITOMO MURAKAMI
Article type: Article
1975Volume 237 Pages
121-125
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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Most Important factors in the composition of the housing space for the disabled are transfer ability and household composition. In this report, we supposed patterns of the household that included the disabled, and induced the necessary house condition about each household patterns. The households classification is suitable to classify by the position which the disabled is standing- a husband or wife (housewife) or child- in the past households classification patterns. As the result, by means of this classification, we are able to suppose indivisual parts for the disabled and the other member to take, so present the necessary house conditions which make easy to do own parts in each case of the household patterns. We applied the transfer ability and the households classification to the tenants who were living in public houses and general houses, and found the concrete subjects household to pursue in future.
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HIDEYA KOBAYASHI
Article type: Article
1975Volume 237 Pages
127-133
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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Table of contents. 4. Campus plannings principally making much of scenery. 4.1 Principal scenery in the center of the campus. 4.2 Making much of the whole campus. 4.3 Making much of the partially scenery of the campus. 5. Confused state by the developement of long range of the years. 5.1 Confusional order on account of the narrow campus compared to its enlarged contents. 5.2 Noncampus and distributed estate. 5.3 Plural central ideas of the planning. 5.4 Numerous estate by many years development. Literatures of full reports Following to the preceded papers of the same headings in (Part 1) and (part 2) of this report, this paper describes the classified features of campus planning on universities and colledges continuously, in referenece to the main ideas of each planning, and its relationship to the styles of the campuses according to the each items as above mentioned.
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Article type: Bibliography
1975Volume 237 Pages
133-
Published: November 30, 1975
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AKIO CHIJI
Article type: Article
1975Volume 237 Pages
135-145
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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There are only a few studies on the coastal fishing districts in spite of the industrial and cultural importance. This has turned out a main factor which causes the pollution problem of the coast. The purpose of this study is to catch the image on the whole by structural type about the coastal fishing village by establishing a structural conception and to search for a general theory and individual methods by structural type about the fishing districts-planning. To establish the structural conception, first I consider critically the various results of the studies on the coastal fishing districts, then, from that I investigate a right direction of the fishing districts study and planning in the future, lastly I shour a hypothesis, that is, the fishing villages consist of a structural conception composed of 4 indexes-1)-a living facilities, 1)-b fishing production facilities, 2)-a fishing production ratio, 2)-b fishing population ratio-and the structural types has 6 patterns.
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TOMIO TAKASE
Article type: Article
1975Volume 237 Pages
147-158
Published: November 30, 1975
Released on J-STAGE: August 22, 2017
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