日本建築学会構造系論文報告集

表紙

原稿種別: 表紙
1986 年 370 巻 p. Cover1-
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_Cover1

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目次

原稿種別: 表紙
1986 年 370 巻 p. Cover2-
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_Cover2

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CONTENTS

原稿種別: 目次
1986 年 370 巻 p. Toc1-
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_Toc1

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<内容区分と表示について>

原稿種別: 付録等
1986 年 370 巻 p. App1-
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_App1

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奥付

原稿種別: 付録等
1986 年 370 巻 p. App2-
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_App2

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三軸部分圧縮強度試験による地山シラスの力学特性

徳富久二

原稿種別: 本文
1986 年 370 巻 p. 1-10
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_1

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"SHIRASU" are the volcanic deposits, and are distributed widely throughout Kagoshima prefecture in Japan. The collapse of "SHIRASU" was caused by tensile strength from the results of investigation on in-situ shearing tests and in-situ compression tests. A standard triaxial compression test is testing method for determination of shearing resistance. Triaxial compression tests by acting partially longitudinal loads carried out in this report. The triaxial compression tests were analyzed in regard to mechanical balance between the wedge which shaped under longitudinal loads and the circumference of the wedge. The analysis was based on the criterion of tensile strength and shearing one, and showed good agreement with the experimenal results.

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建築物外壁面の汚染の調査および基礎的考察 : 建築物外壁仕上材料の汚染の評価方法に関する研究(その1)

橘高義典

原稿種別: 本文
1986 年 370 巻 p. 11-18
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_11

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The purpose of this study is to establish an evaluation method for the soiling on finishing materials of the external building walls. In this paper, some basic studies are described. According to the survey of the state of soiling on external walls, various kinds of soiling were classified into some groups, and the major factors influencing the soiling were identified. In order to estimate the degree of soiling on actual external walls, a sensory test was conducted. In the sensory test, the degree of the soiling due to flowing rain was found to be high, so this study is limited to that kind of soiling. Color difference between soiled area and unsoiled area had a correlation with obtained psychological scale. Therefore, the colorimetric value was used to indicate characteristics of the soiled materials in this study. In order to obtain a basic knowledge, the flowing rain from a top beam or a water drip was observed. And it was proved that there was a relation between the total amount of flowing rain and the degree of soiling of the external walls.

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高次積率を用いた鋼圧縮材および曲げ材の抵抗強度に関する統計論的研究

小野徹郎, 井戸田秀樹, 河原弘明

原稿種別: 本文
1986 年 370 巻 p. 19-27
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_19

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The probability distribution of steel member resistance is characterized by rion-Gaussian properties that cannot be expressed solely in terms of mean value and standard deviation. The non-Gaussian properties of distribution can cause extremely large variations in the probability of member failure when probability distribution is evaluated in terms of moments up to the 2nd order. The purpose of this paper is to present data relating to the non-Gaussian properties of member resistance distribution. In addition, using higher order moments of member resistance, design formulae of member resistance are studied and characteristic strength curves capable of producing a uniform level of reliability over the entire range of slenderness ratios are proposed.

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可動載荷質量を有する骨組の地震応答

小川信行

原稿種別: 本文
1986 年 370 巻 p. 28-39
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_28

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In recent years, some investigations of aseismatic property of typical automated warehouses, especially, the large seals shaking table tests have been carried out, and the results have showed the occurence of slip motion of heavy loads over a certain excitation level which is about 100 Gal. Furthermore, the experiment have made clear that the slip motion of loads bring the remarkable elimination of frame response or the large equivalent damping effect. The main purpose of this study is to explain this effect by means of analytical simulations. The method and results of the study are summarized as follows : 1) The analysis and experiment of one story slip model showed the availability of a model in which static and dynamic friction constants are used. 2) The analytical simulation of multi story slip model agreed well with the experiment, and the method of pseudo force modal superposition have been found to be applicable for a large model analysis. 3) The numerical simulation of a real scale model (Ref. 2) have explained well the result of large scale shaking table test. A simplified estimation method of slip motion effect have been presented in a way of minimum effective input, and the adequacy of that have been roughly showed.

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仮動的実験による地震時応答の精度 : 仮動的実験手法による地震時応答再現性

山崎裕, 中島正愛, 上之薗隆志, 井崎征男, 前田克馬

原稿種別: 本文
1986 年 370 巻 p. 40-49
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_40

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In this paper, analytic investigation was carried out in order to evaluate the earthquake response simulation capacity of pseudo dynamic testing technique. For this purpose, responses obtained from previously conducted shaking table and pseudo dynamic tests employed for the identical structural system were utilized. Using the system identification technique, the system representing the shaking table response and the system representing the pseudo dynamic response were defined. Numerical analysis was carried out for those systems, and their responses were compared with the original test responses. It was found that thus defined systems are able to represent with reasonable accuracy the test responses. Using the systems, a variety of numerical analysis was conducted to examine the effect of various assumptions/simplifications included in the pseudo dynamic testing on the response, and those assumptions were found at most to have the secondary effect on the response. Whatever difference was observed between the shaking table and pseudo dynamic responses was found to have been caused by the difference in hysteresis between the two responses, and this difference was suspected to have occurred by part by the difference in the loading rate.

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弾塑性接合要素のトラス置換による定式化 : 有効強度理論の一応用例

加藤史郎, 日高健一郎, 青木孝義

原稿種別: 本文
1986 年 370 巻 p. 50-59
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_50

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The purpose of this paper is to formulate a two-dimensional elastic-plastic joint element through three truss elements. The joint element consists of three members forming a truss structure : one vertical and two diagonal elements with different stress strain relations. The yielding condition of the joint element is determined by two factors : one takes account of possible combination in the order of the members turning to the plastic phase, and the other gives appropriate properties of the three elements in comparison with experiments or theories : Young's modulus, compressive strength and tensile one. The present element is much simpler than others to express a discontinuous plane in the plastic phase based on mathematical formulations. Results of numerical analyses are as follows : 1) In case of plain concrete under combined stress, the yielding condition from the present theory is consistent with curve given by experiment. 2) According to analysis of stresses and maximum load in soil due to slippage failure under a footing, the analytical results correspond well to the theoretical values given by Reissner. Thus two-dimensional elastic-plastic joint element presented herein is available for FEM analysis to express a discontinuous plane in the plastic phase.

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上下地震動を受けるトラス平板の耐震性について : 直交交差型トラス平板についての検討

加藤史郎, 石川浩一郎, 横尾義貫

原稿種別: 本文
1986 年 370 巻 p. 60-68
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_60

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In this paper the earthquake resistant capacity of orthogonal trussed grids subjected to vertical earthquake motions has been analytically studied by the same procedure as the previous one (1), and the resistant capacity is confirmed to depend on the out-of-plane slenderness ratio, the first natural period of the structure and the displacement spectrum of the applied earthquake motion. The results from the present study lead to the followings ; (1) Even if the load carrying capacity of the central beams under the static load P_s is lost for reason of lateral buckling, the trussed grid can endure against P_s and vertical earthquake motions because of the redunduncy of the peripheral beams. (2) An estimating formula of the collapse acceleration has been proposed and the validity has been shown.

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複曲率曲げを受けるH形鋼柱の塑性変形能力に及ぼす軸力比および曲げモーメント比の影響

三谷勲, 山崎達司, 林原光司郎, 今門一弘

原稿種別: 本文
1986 年 370 巻 p. 69-80
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_69

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In order to clarify effects of axial load, unequal end-moments, and laterally-unbraced length on plastic rotation capacity, H-shaped steel beam-columns were tested under the conditions of a constant vertical load and unequal end-moments. Based on the test results, the effects of axial load and unequal end-moment ratio, and laterelly-unbraced length are discussed. And relations of plastic rotation capacity and each factor are formulated.

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鋼管柱・H形はり接合部の局部耐力 : 高張力遠心鋳鋼管について

上場輝康, 金谷弘, 田渕基嗣, 脇田孝彦

原稿種別: 本文
1986 年 370 巻 p. 81-91
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_81

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This paper examines the behavior of the welded connections of the uniquely shaped spun cast tubular columns (called 'Spun column' in the following). The spun columns are distinguished by their shape at beam connections, where the columns have smoothly projected ring stiffeners. The paper reveals that the strength of connections subjected to vertical or horizontal loading can be estimated in the same manner as previously proposed for plane tubular columns. The strength and stiffness of joint panels of the spun columns subjected to horizontal loading are also examined here. The results of the experiment and the investigation are summarized as follows : 1) The ring stiffener projecting from the column surface is effective in preventing excessive out-of-plane deformation of the column wall at the beam to column connection in the rigid frame. 2) The local strength of the spun column connection is estimated in the same manner as for the plane tubular column connection. However, since Eqs. (1) and (2) underestimate the strength of the spun column, they must be modified. Thus, for the local strength of the spun column connection subjected to vertical loading, the following formulae are obtained. For the maximum strength, _<CG>P_<max>=(4.53 B_f/D + 2.05)(T_p/R)^<0.782>(T_s/R)^<0.564>((T_p +h_s)/R)^<0.366> σ_yR^2 …(3) For the yield strength, _<CG>P_y=0.79_<CG>P_<max>…(4) 3) The yield strength of the spun column connection subjected to.horizontal loading is estimated by Eq. (5), when the yield of the joint panel is caused by the shear force.

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H形鋼強軸交叉形柱・はり接合部の弾塑性せん断変形挙動評価法に関する研究 : その1 柱・はり接合部の抵抗モデルについて

榎本憲正

原稿種別: 本文
1986 年 370 巻 p. 92-101
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_92

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Attempts on the modeling for elastic-plastic behavior of beam to column connections subjected to unsymrhetrical beam moment have been presented in References. However, the writer know that the models presented in the References would not always agree with experimental results. Therefore, the writer examined in detail resistance force of beam to column connections composed of wide flanges, and attempted to model its resistance force. It was assumed that the shearing resistance of the panel zone is an average shearing stress and the resistance of the elements surrounding the panel zone is the bending moment at the four corner points. Based on the consideration of the lower and upper bound on the strength of the connection, the comparison with the test results was carried out. The results of this comparison are discussed and summarized in this paper, and it has been concluded that the modeling for resistance, of the panel zone and the frame action surrounding the panel zone introduced in this paper is useful to explain the elastic-plastic behavior of beam to column connections composed of wide flanges.

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火炎性状に関する考察 : 初期火災時における家具類の燃焼性状に関する実験的研究,その2

水野智之

原稿種別: 本文
1986 年 370 巻 p. 102-108
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_102

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This paper describes the burning characteristics of upholstered chairs in an incipient fire. The proximity of a wall or a corner were examined. The presence of a adjacent wall or corner did not have a significant effect on the burning rate of upholstered chairs. Measurements of temperature distribution, visible flame height, irradiance and smoke density were made on the burning chair in a room center, alongside a wall and in a corner of walls. The flame height, the centerline temperature above a heat source, smoke genaration and incident heat flux from a burning item were formulated as a function of the mass burning rate or heat release rate. Specially, flame height and the maximum temperature on each height were formulated with the theory of turbulent diffusion flame introduced by Hasemi.

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SI単位の換算率表

原稿種別: 付録等
1986 年 370 巻 p. App3-
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_App3

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裏表紙

原稿種別: 表紙
1986 年 370 巻 p. Cover3-
発行日: 1986/12/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.370.0_Cover3

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