日本建築学会論文報告集
Online ISSN : 2433-0027
Print ISSN : 0387-1185
ISSN-L : 0387-1185
288 巻
選択された号の論文の25件中1~25を表示しています
  • 原稿種別: 表紙
    1980 年288 巻 p. Cover1-
    発行日: 1980/02/28
    公開日: 2017/08/22
    ジャーナル フリー
  • 原稿種別: 表紙
    1980 年288 巻 p. Cover2-
    発行日: 1980/02/28
    公開日: 2017/08/22
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  • 原稿種別: 目次
    1980 年288 巻 p. Toc1-
    発行日: 1980/02/28
    公開日: 2017/08/22
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  • 原稿種別: 文献目録等
    1980 年288 巻 p. Misc1-
    発行日: 1980/02/28
    公開日: 2017/08/22
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  • 原稿種別: 文献目録等
    1980 年288 巻 p. Misc2-
    発行日: 1980/02/28
    公開日: 2017/08/22
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  • 和泉 正哲, 三橋 博三
    原稿種別: 本文
    1980 年288 巻 p. 1-12
    発行日: 1980/02/28
    公開日: 2017/08/22
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    From the view point of a stochastic theory, this paper has presented a theoretical consideration of the properties of fracture strength of concrete materials under simple loading, which is dependent on several factors such as the kind of stress, stress disturbance by heterogeneity (because of aggregates and water), and size effect. After assuming the probability density function of the stress disturbance factor : f(c) as the gamma distribution, the effects of material defects on the probability density function of the fracture strength are discussed. These properties are ascertained by comparison with the results of some experimental procedures.
  • 松本 光平
    原稿種別: 本文
    1980 年288 巻 p. 13-20
    発行日: 1980/02/28
    公開日: 2017/08/22
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    The aim of this study is seek for necessary and sufficient conditions of the optimum design loads of buildings and structures other than socially important ones. This paper build up ten hypotheses and assumptions in order to attain the goal. The fundamental assumption and hypotheses are as follows; 1) the temporaly loads are indipendent random variables. 2) the safty of occupants, the regional or urban security and reconstruction measures should be assured indipendetly with the structural strength design of indiuidual buildins and structures. 3) the economically optimum design load condition should minimize total building cost which is composed of initial investiment (I), estimated damages by disasters (D_n), maintenance expenditures (R_n) and earnings (-E_n). this hypothesis is denoted by equations (3), (5). The obtained results are as follows; 1. When he determinant Det≤0, the optimum design for temporaly loadts does not exist. 2. When Det>0, the necessary and sufficient condition for the optimum design is given by the equilibrium formula (7)-(12).
  • 脇山 広三, 平井 敬二
    原稿種別: 本文
    1980 年288 巻 p. 21-27
    発行日: 1980/02/28
    公開日: 2017/08/22
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    The results of fatigure testing of high strength bolts are prsented herein. And the results are presented in the S-N curue or modified goodman-diagram which are regards as the fundamental data of fatigue design for high strength bolted joints. In this paper, five different types of bolts are tested. These are F8T-M22, F10T-M22, F11T-M22, F10T-M16, F11T-M16 and are prescribed in JIS-B-1186. When a high strength bolt is subjected to a fatigue loading, for easily estimating its fatigue strength from the modified goodman-diagram, the diagram is indicated in some numerical equations. On the purpose, the author proposed one method for estimating a modified goodman-diagram by making experiments as few as possible. Comparing between experiments and the results from a proposed method, the prosperity of a proposed method is concidered. The outline of a proposed method is followings. If a modified goodman-diagram of one type of high strength bolt is obtained by experiments, making this diagram non-dimensional form by the tensile stress of the bolt, the non-dimensional modified goodman-diagram is obtained for the same diameter bolts as which are fatigue tested. And from the non-dimensional goodman-diagram, a estimated modified goodman-diagram for a bolt having the same diameter but a different tensile stress is obtained by multipling the non-dimensional modified goodman-diagram by the tensile stress of the bolt of which we want to know modified goodman-diagram. The estimated goodman-diagram according to this method is regarded as the significant and convenient data in engineering judgement.
  • 鈴木 敏郎, 小河 利行
    原稿種別: 本文
    1980 年288 巻 p. 29-37
    発行日: 1980/02/28
    公開日: 2017/08/22
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    In this paper, a consistent method of stability analysis for reticulated cylindrical shells using the finite element method is presented. The basic equilibrium path which involves snap-through buckling is pursued by the proportional loading method and the bifurcation path is constructed applying the eigenvalue analysis. The accuracy of the present method is examined by numerical examples and then the method is applied to typical model calculations for pre- and post-buckling analysis of a rigidly jointed reticulated cylindrical shells. Summary of results obtained may by as follows. 1. Good convergency is obtained as a result of improvement of freedom of an axial displacement. 2. Linear buckling load is higher than non-linear buckling load even if the initial displacement matrix is included in the eigenvalue analysis. 3. As characteristic parameters of shell geometry, a lengthy ratio of both sides as well as shallowness is important. 4. Nonlinearity due to bending moment has a little influence upon the buckling behavior. 5. Asymmetrical bifurcation may occur even when there exist no snapthrough buckling on the basic equilibrium path.
  • 狩野 芳一, 吉崎 征二
    原稿種別: 本文
    1980 年288 巻 p. 39-47
    発行日: 1980/02/28
    公開日: 2017/08/22
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    The characteristics of slab-column connections were experimentally investigated. Eight slab-column specimens were tested under repeated lateral load simulating earthquakes. Major variables were : 1) the tensile reinforcement ratio, . 2) the arrangement of that reinforcement, 3) shear reinforcement. Based on the test results, cracking patterns and failure modes, load-deflection relations, effective width of slabs, deflection modes of slabs, average strain distributions of slabs measured by contact strain gage, distributions of flexural moment at slab critical section, α values defined by ACI 318-71-applied moment due to lateral load relations, ultimate shear strengths were described with tables and figures. Furthermore, inadequacies in the assumption of the design method in the ACI Code 318-71 were pointed out.
  • 牧野 稔, 松井 千秋, 三谷 勲
    原稿種別: 本文
    1980 年288 巻 p. 49-59
    発行日: 1980/02/28
    公開日: 2017/08/22
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    In this paper, the first, correlation of plastic behavior between cyclic loading and monotonic loading are discussed based on analytical and experimental results. The summaries are as follows : 1) The plastic behavior (axial load carrying capacity-axial deformation relation) of the web effects on the plastic cyclic behavior (resisting moment-rotation relation) of the steel beam-columns. 1-1) In the case of strain hardening modulus ratio of the web μ_w>0, the yield load at i/2th cycle is larger than the reversed load at (i-2)/2th cycle. 1-2) In the case of μ_w<0, the yield at i/2th cycle is smaller than the reversed load at (i-2)/2th cycle. 2) The correspondency of the plastic behavior under monotonic loading and cyclic loading is as follows : Without regard to value of n, when [numerical formula] and [numerical formula], where b/f is width-to-thickness ratio of the flange, D/w is width-to-thickness ratio of the web, σ_y is the yield point stress of the material evaluated in ton/cm^2, good correspondency was observed. Next, the influences of the width-to-thickness ratios of the plate elements, axial load ratio, amplitude, and material properties on relations between accumulated energy absorption Σe and accumulated plastic deformation Σδp are discussed. Ratios of the experimental value (Σe)_<exp> at Σδp=20 to the theoretical value (Σe)_<th> that is obtained based on the perfectly elastic-plastic behavior of the member α are evaluated as follows : In the case of n=0 [numerical formula] In the case of n=0.3 [numerical formula]
  • 藤本 盛久, 泉 満
    原稿種別: 本文
    1980 年288 巻 p. 61-71
    発行日: 1980/02/28
    公開日: 2017/08/22
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    The low cycle plastic fatigue tests of defective butt welded T-joints were carried out. From the results, the following summaries were obtained. (1) Comparing the reduction of area of T-joints which breaks at near the end of joints with the one of their material, the former is under 1/2 of the latter. (2) The relation between plastic strain amplitude and number of cycles to failure of T-joints can be expressed by Manson-Coffin's formula. k_p and C_p are the function of the fracture ductility. (3) The uniform elongation of the T-joints is proportional to the fracture ductility, and by employing the uniform elongation both the relation between strain amplitude and number of cycles to failure and the relation between strain amplitude and total hysteresis energy can be expressed by Manson-Coffin's type formula.
  • 松岡 理, 八幡 夏恵子
    原稿種別: 本文
    1980 年288 巻 p. 73-84
    発行日: 1980/02/28
    公開日: 2017/08/22
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    The displacement potentials to have a new representative form are derived from dynamic governing equations of a three dimentional homogeneous, isotropic elastic medium. We discuss the relation between these potentials and well-known potentials. The fundamental solution in the case of an infinite elastic medium to be excited by a harmonic point load, or a point load with impulsive time dependence at the origin, is obtained and the solution to be called the Dynamic Kelvin solution, is investigated. The simple application, used the fundamental solutions in the harmonic case is performed, and it is discussed that the result is similar to that of the problem for a point load acting normally to the boundary in the interior of a semiinfinite medium. The other fundamental solutions, in impulsive loading, are presented in Fig.4-9, where the wave geometry of the propagation state with dilatational waves and equivoluminal waves are shown, and wave fronts are caught approximately. It has been described, in dfferent static cases, that the method, using the potential H and fundamental solutions, to analyze problems of a semi-infinite elastic medium subjected to a point load, has been general, While methods of synthesis and superposition, using fundamental solutions, need some skillful idea. This paper is the first part of our study, in which the former method is applied to the dynamic analysis of a three dimensional elastic medium.
  • 岩原 昭次
    原稿種別: 本文
    1980 年288 巻 p. 85-96
    発行日: 1980/02/28
    公開日: 2017/08/22
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    In this paper, the comformal mapping function which transforms the annular region on to the square region with a square hole is made approximately. By using mapping function and the complex variable method associated with Muskhelishvili, bending analyses of plates shown in subtitle are performed. As boundary conditions, the outer boundary is treated with the clamped edge and the simply supported edge, respectively, and the inner boundary is treated with free edge. Numerical calculations are performed so exactly for given mapping functions, and the satisfied results were obtained.
  • 原稿種別: 文献目録等
    1980 年288 巻 p. 96-
    発行日: 1980/02/28
    公開日: 2017/08/22
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  • 曽田 五月也, 谷 資信
    原稿種別: 本文
    1980 年288 巻 p. 97-105
    発行日: 1980/02/28
    公開日: 2017/08/22
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    はじめに, 地震動の不確定量としての特性を考慮して多層構造物の「統計的耐震設計法」を体系化して行くうえでの基本となる解析方法を示し, 次いで解析例として, 塑性率制御設計における入力の特性剛性分布との関係について検討した。基礎に対する入力のスペクトル特性としては単独のピークを持つ場合のみに限られているが, この場合, 卓越周期が同じであれば入力加速度の最大値の「大・小」およびその発生時刻の「早・遅」, さらにスペクトル密度の選択度の違いなどは適性剛性分布の形に余り大きな影響を及ぼさない事が分かった。それに対し, 入力の卓越周期の相違による影響は大きく, 主要モードの固有周期と入力の卓越周期との関係に注意が必要であり, この点に関しては更に, スペクトル特性が複数個のピークを持つ入力に対して解析を行なう事が不可欠である。本論を展開して行く上で基本となっているのは, 「塑性変形を考慮した設計において許容される塑性変形は, 振動がほぼ正負対称で十分に安定な履歴を呈する範囲に限る」という, 耐震設計上容認されると思われる考え方であって, この条件は, 等価線形化法の適用性の条件と等価であると考えられるので, 本論に示した手法は十分に妥当なものと考えられる。更に, モード解析の手法を用いているので, 多くのパラメーター・スタディを能率的に処理出来るなどの利点がある。ちなみに, 先の精度の検証の項において, 3質点モデル1ケの解析に要する演算時間は, 100ケのサンプル波によるSimulationではCPU約37秒, 等価線形化法ではCPU約1.5秒であった。ただし, Simulationの場合に, サンプル波の発生に要する時間は除外してある。後半に示した適性剛性分布の決定に関しては, 1案として塑性率制御を適性化の規範に選んだが, 「適性」の意味には多くの問題点が残されており, 更に多方面からの検討を加えて行く予定である。以上の解析には, 全て東京大学大型計算センターのHITAC8800/8700を使用した。
  • 松村 和雄, 牧野 稔
    原稿種別: 本文
    1980 年288 巻 p. 107-113
    発行日: 1980/02/28
    公開日: 2017/08/22
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    Statistical tests for the Poisson process, the magnitude distribution and the distribution of the annual maximum magnitude of earthquake occurrences in and near Japan listed in JMA catalogue from 1885 to 1974 were examined. The goodness of fit tests for the time occurrences of large earthquakes show that the Poisson process is rejected in some unit areas of approximately 10000km^2 as shown in Figs. 1 and 2 since earthquakes tend to come in groups. Except for a few unit areas, the goodness of fit tests show that the truncated magnitude distribution derived from the Gutenberg and Richter's law is accepted as shown in Figs. 4 and 5. Results of the Kolmogorov-Smirnov goodness of fit tests for the annual maximum magnitude indicate that the extreme value distribution derived from the Poisson process and the magnitude distribution is adequate to explain the observed annual maximum magnitude in and near Japan as shown in Figs. 7 and 8.
  • 原稿種別: 文献目録等
    1980 年288 巻 p. 113-
    発行日: 1980/02/28
    公開日: 2017/08/22
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  • 高梨 晃一, 宇田川 邦明, 田中 尚
    原稿種別: 本文
    1980 年288 巻 p. 115-124
    発行日: 1980/02/28
    公開日: 2017/08/22
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    以上, 電算機-試験機オンラインシステムを用いた2層1スパン鉄骨骨組の地震応答解析法について説明したが, 次のような結論が得られた。1) 従来から行ってきた1層の骨組(1自由度系)の解析に限らず, 2層骨組(2自由度系)のオンライン解析も可能である。本報で示した2層1スパン鉄骨フレームの解析例では, 弾性範囲内の応答については, 計算機のみによる結果とほとんど同程度の精度の結果が得られることを確めた。(骨組の一部が塑性化する弾塑性領域における応答解析結果の信頼性については, その精度を検討するにたる復元力特性の解析モデルがないので直接それを検討することが困難である) 2) 原理的には, このオンライン解析法を2自由度系以上の多自由度系へ拡張することは可能である。本報告で示したオンライン解析例では, 式(4.2a, b)の制御精度でほぼ満足すべき結果を得たが, 自由度が増加すればそれだけ制御すべき変位量が増え, 1つの層の変位制御誤差が他の層の復元力の値に大きな影響を与えるから, さらに高い制御精度と測定精度が要求されよう。3) 本解析例のように, 骨組各層の復元力が直接測定できる場合には, その値をそのまま計算に使用出来, また, 復元力と層変位とを関係づける剛性行列の作成を必要としない中央差分法が, オンラインシステムにおける振動方程式の解法に適している。4) 変位制御における小出し分割変位出力は, 1, 2層の変位経路の制御ならびに変位制御精度の向上, 試験体骨組への衝撃的載荷の緩和, 試験機荷重の安定性確保に有力な手段である。
  • 横尾 義貫, 松永 裕之
    原稿種別: 本文
    1980 年288 巻 p. 125-138
    発行日: 1980/02/28
    公開日: 2017/08/22
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    This paper is concerned with a numerical prediction of geometrically nonlinear behaviors of shallow (hyperbolic paraboloidal) shell models with clamped edges subjected to air pressures. The numerical analysis of the experimental models in the previous work [6] is carried out in detail with the use of higher order finite difference approximations by taking into account the effects of initial configurations of shell models. A considerably close agreement between almost all the numerical and experimental data except some local data verifies the accuracy and reliability of the present method and solution at least with respect to the benchmark load-deflection curves of the particular cases treated here.
  • 山崎 均
    原稿種別: 本文
    1980 年288 巻 p. 139-147
    発行日: 1980/02/28
    公開日: 2017/08/22
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    (1) 太陽位置のベクトル表示Aは, A=(a_1, a_2, a_3) a_1=cosδ・sint a_2=cosδ・sinφ・cost-sinδ・cosφ a_3=cosδ・cosφ・cost+sinδ・sinφである。任意傾斜面の法線ベクトルBは, 傾斜面の方位角をα, 南面を向いた俯角をiとすれば, B=(b_1, b_2, b_3) b_1=sini・sinα b_2=sini・cosα b_3=cosiとなる。(2) 視赤緯の計算手順を, 1978年を基準年とし, 中央標準時で表現すると(1) n=西歴-1978 (2) d_0=3.306+0.2596・n-[(n+1)/4]+0.375[注1]=3.681+0.2596・n-[(n+1)/4] (3) ε_0=12.5621+0.0172・M/360 (4) 1月1日を1日とする通日Dの計算 (5) 平均近点離角Mの計算 M=(D-d_0)×0.9856 (6) ε=ε_0+0.0172・M/360 (7) sinν=sinM+2esinM・cosM +e^2sinM(2.5cos^2M-2sin^2M) cosν=cosM-2esin^2M-4.5e^2sin^2M・cosM (8) δ=sin^<-1>{(cosν・cosε-sinν・sinε)・sinδ_0}計算された視赤緯δの値は, 中央標準時D日正午の値である。(3) 均時差及び大気圏外日射量E_t=-sin^<1>(2esinM+1.25e^2sin2M) -tan^<-1>[ksin2(ν+ε)/{1-kcos2(ν+ε)}] k=(1-cosδ_0)/(1+cosδ_0), δ_0=-23.4422° J=J_0(1+ecosν)^2/(1-e^2)^<3/2> =J_0(1+0.033cosν) J_0=1170kcal/m^2, h(1.36kW/m^2) e≒0.01672 注1 : d_0は平均近点離角を0°にする日に, 0.5日を加えた数値となるが, ここでは若干大きめの値(10^<-2>日程度)を採用した。(4) n本の線分で構成される平面(完全拡散面)の立体角投射率 (1) n本の線分は, 1本の線分毎に計算する。それは, 始点より始点まで順序よくn本の線分にする。xy平面に視点があり, その1本の線分の始点終点の座標を(x_1, y_1, z_1), (x_2, y_2, z_2)とする。(2) l_x=x_2-x_1, l_y=y_2-y_1, l_z=z_2-z_1 (3) α=y_1l_x-x_1l_y, β=z_1l_y-y_1l_z, γ=x_1l_z-z_1l_x δ_1=x_1_x+y_1l_y+z_1l_z, δ_2=x_2l_x+y_2l_y+z_2l_z (4) [numerical formula] f_j=1/2π(f_2´-f_1´) (5) 全部の線分について順番にf_jを求め, その和の絶対値を作る。即ち, 求めるfは, [numerical formula]である。
  • 森田 孝夫
    原稿種別: 本文
    1980 年288 巻 p. 149-155
    発行日: 1980/02/28
    公開日: 2017/08/22
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    ホール立地距離から需要人口率を近似し, 2通りの配置方法で大阪府の市民ホールの配置体系を試算した。いずれも現在の総定員よりも30〜40%少ないにもかかわらず, ホールが過集積する地域と空白地域がある不均衡な現在のホール配置体系を修正する配置体系が得られた。ホールの利用実態を調べると, 郊外の市民会館ホールは家族ぐるみの利用がされるが, 絶対的な需要量の少なさが施設運営に支障をきたす。一方都心ホールは若年層中心に利用され, 大阪府全域から広く需要を集めるが, 一般の府民の身近かな存在ではない。その点から, 郊外→都心の逐次配置は観客が少なくてもいいから家族利用を重視する方式, 都心→郊外の逐次配置は大規模な観客動員を必要とする芸能興行向きの方式といえよう。
  • 石田 頼房
    原稿種別: 本文
    1980 年288 巻 p. 157-165
    発行日: 1980/02/28
    公開日: 2017/08/22
    ジャーナル フリー
    Kanda Hashimoto-cho which had been one of four noted slums in Tokyo, was cleared in 1881. In this study the author intended to make clear the detail and background of this slum clearance. Contents of part-1 are as follows : 1) Overcrowded condition of Hashimoto-cho. 2) The big fire on the 26th of January 1881, which redused the slum ashes. 3) A bill to purchase the whole area of slum was discussed and adopted in the extraordinary session of Tokyo 15 Wards assembly. 4) Actual process of purchase. 5) Background of the clearance. In examining the background of this slum clearance, the author mentions a paper written in 1889 by Ogai (Rintaro) Mori (famous novelist and doctor) which criticized such opinions that to segregate the poor from the Central District of Tokyo would be the essencial mehtod to prevent big fire and to improve hygienic condition. Conclusion of part-1 is that the clearance of Hashimoto-cho was the plain example of improvement project used as a expedient of segregation.
  • 佐藤 滋
    原稿種別: 本文
    1980 年288 巻 p. 167-177
    発行日: 1980/02/28
    公開日: 2017/08/22
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    This paper daels with the methods of determining proper limits for density by means of correlation analysis between density and residential satisfaction. The persons who live in the center of the meshes drawn in two research areas, were sampled for the opinionair on their residential satisfaction. And floor area ratio and open space perfloor ratio, measured within 50 metres and 250 metres meshes, have been used further discussion (Fig.5) We found a high correlation between density indicators, physical factors and residential satisfaction. (Fig.7) The opinionairs who live in the block more than 50 percent gross floor ratio or less than 1.0 Livability open space ratio measured within 250 metres mesh, tend to be unsatisfied about the amenity at good housing.
  • 川上 光彦
    原稿種別: 本文
    1980 年288 巻 p. 179-186
    発行日: 1980/02/28
    公開日: 2017/08/22
    ジャーナル フリー
    It is the aim of this study to analyze current household movement for residential dwellings from available data by finite Markov chain as analytical methodology. Transition probability matrix is estimated from the 1973 Housing Survey for status of residence in case of considering no new flows of ordinary households. These are simulated which are time series distributions and invariant distribution of status of residence, and also mean first passage time and mean recurrence time among them. These are main findings about characters of current household movement for residential dwellings as follows. (1) The distribution of owned houses is always increasing and other distributions are decreasing except for the early stage distributions of rented houses owned by public corporations. These tendencies have movement towards invariant distribution. (2) The ratios of invariant distribution against present distribution have correlative intensely to relative levels between main factors of present housing standards. Therefore it is deduced that household movement is basically regulated with these relative standards. (3) The ratio mentioned above of 1.0 means that its housing sector works reasonable role for housing demand of ordinary household. Such levels of housing standards, havingt the ratio 1.0, are estimated by regression method. These levels are considered as kinds of norms for housing supply. (4) Accessibility for ordinary households between status of residence are estimated by mean first passage time. Especially, accessibility order for ordinary households towards status of owned houses, which is regarded as ultimate object of status of residence generally in Japan, are estimated.
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