日本建築学会構造系論文報告集

表紙

原稿種別: 表紙
1985 年 357 巻 p. Cover1-
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_Cover1

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目次

原稿種別: 表紙
1985 年 357 巻 p. Cover2-
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_Cover2

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CONTENTS

原稿種別: 目次
1985 年 357 巻 p. Toc1-
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_Toc1

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内容区分と表示について

原稿種別: 付録等
1985 年 357 巻 p. App1-
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_App1

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奥付

原稿種別: 付録等
1985 年 357 巻 p. App2-
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_App2

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多孔質無機材料の耐凍害性評価における既往の試験法の適用

千歩修, 鎌田英治, 洪悦郎, 田畑雅幸

原稿種別: 本文
1985 年 357 巻 p. 1-7
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_1

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Resently, porous inorganic materials have been used in cold regions because of their excellent heat insulations. However, the behavior against frost has not been clalified. In the study reported herein, evaluation methods for the frost resistance of porous inorganic material is examined. Some hundamental information of frost damage is provided in order to establish standared test method. Analysis of test result revealed that : (1) All the material that absorbs much water has low frost resistance, but all the material that does not absorb much water does not have high frost resistance. (2) At room temperature, ALC specimen can not reach the value of critical degree of saturation except in the case of very thin external layer of specimen. (3) Pumping effect of freezing is not clear, with water content between the freezing-thawing test and water absoption test. (4) The ice that is remained in the specimen is supposed to cause severe and sudden damage.

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偏心水平荷重を受ける鉄骨立体骨組の弾塑性性状(梗概)

森野捷輔, 若林實, 穂高志郎

原稿種別: 本文
1985 年 357 巻 p. 8-19
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_8

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活性白土を用いた風洞実験による水平屋根,山形屋根の屋上積雪形状

遠藤明久, 苫米地司

原稿種別: 本文
1985 年 357 巻 p. 20-28
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_20

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This is a report on our research on the ratio of the snow depth on the flat roof, the gable roof to that on the ground by windtunnel tests with activated clay particles. The results are: 1. The ratio of the snow depth on the roofs to that on the ground usually decreases as the wind grows stronger and increases as the wind grows weaker. 2. As the wind grows stronger, the ratio of the snow depth on the flat roof to that on the ground is usually less than the ratio of the snow depth on the gable roof to that of the snow depth on the ground. 3. As the wind grows stronger, the ratio of the snow depth on the gable roof to that on the ground shows the maximum ratio at the roof inclination of about 25°. The ratio increases as the inclination increases from 5° to about 25° and decreases as the inclination grows lager than about 25°.

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多質点せん断弾性振動系におけるねじれの影響

岩下恒雄, 山下司

原稿種別: 本文
1985 年 357 巻 p. 29-37
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_29

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The objects of this paper are to study the effects which the eccentricity at a story causes on the dynamic characteristics of multi-story structure. Three kinds of eccentricity studied are the cases that shifts the center of rigidity only, the center of gravity only, and shifts both centers together. The ratio of eccentricity and the story with eccentricity are changed. The principal results of this study are as following; 1. There are few effects of the eccentricity on the natural periods of the structure, furthmore, the change of the translational displacements and the shearing stresses, caused at each story when subjected to earthquake ground motion, are little, too. 2. Regardless of the type of eccentricity, large torsional displacement and moment responses are caused at all stories. 3. At the structures shifted the center of rigidity, the torsional displacement and moment of the story with eccentricity grow larger, extremely. 4. These eccentricities which shifted the center of gravity at upper story and the center of rigidity at lower story, are caused some harmful results on the structure, particularly. 5. Some different properties are revealed between the results by statical analysis to the characteristics from dynamic response.

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地震入力を受ける履歴構造物の信頼性解析

浅野幸一郎

原稿種別: 本文
1985 年 357 巻 p. 38-43
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_38

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This paper develops a new technique to estimate an aseismic reliability function of building structural systems with strong nonlinearity considering a low cycle fatigue as a strength deterioration in the hysteretic characteristics. Numerical caculation was carried out to investigate the effect of strength deterioration of hysteretic characteristics on the safety of each story. The results show that the strength deterioration, caused by accumulation of mean plastic flow response, has a tendency to concentrate in a certain definite story, to which the lower safety probability is given.

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円形孔を有するはりの耐力と設計法 : 3.実用的耐力算定式の提案

土井康生, 福知保長

原稿種別: 本文
1985 年 357 巻 p. 44-51
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_44

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Analytical methods on the stregth of beams with non-reinforced and pipe-reinforced circular holes have been shown in Part-1 and Part-2. In this paper, practical expression to estimate the strength of beams with web openings are proposed based on the theoretical methods above-mentioned. Shearing and bending strength of beams with not only single hole but also several holes can be caluculated, using coefficients by proposed equations or figures. The necessary volume of welding between reinforcing pipes and web plates is also described.

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両端固定一方向性中空スラブに関する実験的研究

藤本敬之, 森村毅

原稿種別: 本文
1985 年 357 巻 p. 52-60
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_52

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This paper develops a theory for the determination of the strengths, compressive membrane forces and deflections at ultimate load in one-way reinforced concrete hollow slabs with lateral restraints, when plastic hinge have been formed at the supports and near mid-span. The theory is based on an assumed rigid perfectly plastic behaviour and especially explained in detail the compressive membrane stresses which are induced by the lateral restraints. The tests on the hollow slabs with various depth to span ratios, reinforcement contents, concrete strengths and sizes of hollow diameter were conducted under short-term loading in very stiff surrounding frame. The results obtained from tests on certain hollow slabs show good agreement with value calculated according to the theory.

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支管より曲げをうける正方形鋼管分岐継手の局部破壊 : 角形鋼管T形分岐継手に関する研究1

田渕基嗣, 金谷弘, 上場輝康

原稿種別: 本文
1985 年 357 巻 p. 61-71
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_61

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The present paper examines the local failures of unreinforced RHS T-joints when these are subjected to bending moment. The moment joints of rectangular hollow sections (RHS) often comes out in frame-works of multi-leveled rack systems, aboutments of pipe lines and brackets of sub-structures as well as in Vierendeel trusses. In unreinforced RHS T-joints, subjected to, bending moment, various failure modes occur depending on the combination of chord and branch sizes. Since all of. these failures are due to the out-of-plane deformation of chord, they are collectively called local failures. The term local failure implies all premature failure modes such as flexural failure of chord flange plates, web crippling in chords, local buckling of branch and fracture in welds before developing full plastic moment of branch. In this paper, an extensive parametrically programmed study on test specimens was carried out to investigate the effect of the member sizes, including the details of weld, on the local failure.

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欠陥を有する柱-はり接合部の塑性変形能力に関する破壊力学的検討 : 欠陥を有する溶接接合部の破壊挙動に関する研究その3

小野徹郎, 中川進一郎

原稿種別: 本文
1985 年 357 巻 p. 72-80
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_72

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In previous paper, fracture behaviors of notched plate specimens were studied, and the critical values of the COD were established. On the other hand, finite element analysis of notched plates were carried out to evaluate the relationships between the COD and the J-integral. The purpose of this paper is to determine the critical value of fracture of defective structural members after crack propagation and thereby to measure quantitatively the fracture deformability of beam-column connections under cyilic loading. The results of experiments on defective connections are compared with those on notched plate specimens to obtain a relational expression of defect length, deflection amplitude, and hysteresis energy to fracture based on the COD concept in non-linear fracture mechanics.

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柱はり溶接接合部の力学的性状および破壊に及ぼす影響について : 厚板鋼板を用いた柱はり溶接接合部の破壊に関する実験的研究(その2)

藤本盛久, 橋本篤秀, 中込忠男, 金鐘洛, 松村弘道

原稿種別: 本文
1985 年 357 巻 p. 81-88
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_81

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10 full scale specimens of sub-assemblage including beam-to-column connections are experimented applying axial force at column and bending moment at the end of beam. The main factors of the specimens are the stress level in the column, the shape of column, the detail of welded joints and the stiffness of column web with doubler plates. The characteristics of fracture of beam-to-column welded connections was discu-ssed in the preceding report (PART 1). This paper was discussed about the experi-mental results of stuctural behavior of beam-to-column welded connections in heavy members steel structures and effect on the charactristics of fracture by strength proportion between the members of frame work. The results are summarized as follows ; The specimesn reinforced with doubler-plates at column web within connection are more fragile than non-reinforced. It recognize that the column web become hard for reinforced with doubler-plates, but on the other hand the column and the beam keep up much more deformation.

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RC連層耐震壁架構の弾塑性地震応答性状に関する基礎的研究

益尾潔

原稿種別: 本文
1985 年 357 巻 p. 89-100
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_89

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This paper aims to clarify parametrically elasto-plastic earthquake response behaviour of reinforced concrete structures with cantilever shear walls. For this purpose, these structures are idealized to the double-degree-of-freedom model in which the shear wall at the first story is deformable through the action of bending moment and shear force, but the upper shear wall is the rigid body, as shown in Fig.1. Then, earthquake response and static behaviour of these structures are analyzed with this model and the resultant model which was proposed in the previous paper (7). As compared with these analytical results, it is clarified that elasto-plastic earthquake response behaviour of these structures is obtained with this model for the structures in which the shear wall yields flexurally or fails in shear at the first story. Furthermore, earthquake response of these structures is analyzed with this model in regard to parameters which were selected in consideration of the ultimate strength of these structures in the previous paper (8). On the basis of these analytical results, the important knowledges of earthquake response behaviour of these structures are clarified.

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柱はり接合部内に通し配筋されたはり主筋の付着性状に関する実験と解析

林静雄, 森本敏幸, 黒正清治

原稿種別: 本文
1985 年 357 巻 p. 101-111
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_101

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The slippage of the longitudinal bars through the reinforced concrete beam column joint increases the fixed end rotation and results in the loss in stiffness of the reinforced concrete frame. In order to understand the slippage of the longitudinal bars through the beam column joint quantitatively, it is necessary to examine the bond behavior of the bars in the joint closely. This paper describes the experimental and analytical investigations which put emphasis on the bond behavior of the beam longitudinal bars through the interior of reinforced concrete beam column joint and on the effects of the slippage at the face of column on the deflection of the beam. The conclusions obtained from these experiments and analyses are as follows; (1) For the specimen without axial force of column, the maximum bond stress was neary equal to 40 kgf/cm^2 through the all area in the beam column joint. For the specimens with an axial force of column, the maximum bond stress near the face of column was nearly equal to 40 kgf/cm^2, too, and the bond failure did not occur near the center of the joint. (2) For this reason, the specimen without axial force of column had larger total slippage of longitudinal bar at face of column and loss in stiffness than the specimens with an axial force. (3) The bond stress, when the local bond deterioration occurs near the face of column in the joint, is smaller than that is when the local bond deterioration occurs near the center of the joint. (4) The load-deflection relations, the slippage of the longitudinal bars at the face of column and the strain distributions obtained by FEM analysis in consideration of the bond deterioration near the face of column and cracks agree with the experimental results very well.

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SI単位の換算率表

原稿種別: 付録等
1985 年 357 巻 p. App3-
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_App3

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裏表紙

原稿種別: 表紙
1985 年 357 巻 p. Cover3-
発行日: 1985/11/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.357.0_Cover3

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