日本建築学会構造系論文報告集

表紙

原稿種別: 表紙
1989 年 403 巻 p. Cover1-
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_Cover1

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目次

原稿種別: 表紙
1989 年 403 巻 p. Cover2-
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_Cover2

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日本建築学会構造系論文報告集ならびに日本建築学会計画系論文報告集募集規程

原稿種別: 付録等
1989 年 403 巻 p. App1-
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_App1

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CONTENTS

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1989 年 403 巻 p. Toc1-
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_Toc1

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「日本建築学会構造系論文報告集ならびに日本建築学会計画系論文報告集」論文募集

原稿種別: 文献目録等
1989 年 403 巻 p. Misc1-
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_Misc1

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訂正

原稿種別: 文献目録等
1989 年 403 巻 p. Misc2-
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_Misc2

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奥付

原稿種別: 文献目録等
1989 年 403 巻 p. Misc3-
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_Misc3

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鉄筋コンクリート構造物の施工荷重による損傷の防止 : コンクリートの強度変動に基づいた信頼性施工

山本俊彦

原稿種別: 本文
1989 年 403 巻 p. 1-11
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_1

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This paper explains how to determine the reliability of reinforced concrete structures with respect to structural damage such as occurrence of cracking and excess deflections during construction, which affect their serviceability significantly after construction. Occurrence of cracking and excess deflections are affected by the variation in the strength of concrete, Young's modulus, and supporting systems. Effects of these variables on load distributions and variations were studied using Monte Carlo technique for random simulation. Results of this study indicate that variability of Young's modulus have a significant influence both on the load variability and deformations. The coefficient of variation of load distribution during construction is less than 10 % and that of creep deflections during construction is more than 20 %. From the coefficient of variation of load distribution and the coefficient of variation of rupture of concrete, a diagram for determining the reliability of reinforced concrete structures against occurrence of cracking during construction was made.

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薄型シャーコッターによる合成接合面の設計に関する研究 : 大型ハーフPC合成床板工法に関する研究

高田博尾, 松崎育弘

原稿種別: 本文
1989 年 403 巻 p. 13-23
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_13

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A new slab system whereby a concrete composite slab is constructed by placing concrete on a large scale precast concrete panel with the shallow and concave shear keys cast on site by multi-layer casting allows the reduction of the construction period, saves manpower, and reduces the amount of temporary materials used. To investigate the transfer mechanism of horizontal shearing force at the interface between precast concrete and in-situ placed concrete, and to establish the standard specifications for the structural design, the following tests were carried out. 1) Shearing test are carried out to study the effect of the shear keys in transferring the shearing force at the interface. 2) Flexural and shearing strength test for the composite slab are carried out to study the strength, deformation capacity and failure conditions. The results are studied by comparing them with those of a monolithic slab. 3) Long-term loading test for the composite slab are carried out to study the creep behavior and the long-term reliability of the shear keys. The test results prove that the shear keys to be made on the surface of the precast concrete panel according to the standard specification allow the construction of a composite slab with the quality nearly equal to that of a monolithic slab.

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地震波の発生伝播理論を考慮した模擬地震動作成法

武村雅之, 釜田正毅, 小堀鐸二

原稿種別: 本文
1989 年 403 巻 p. 25-34
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_25

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There are two kinds of the method for predicting strong ground motions. One is the method based on the fault model, which has been developed by seismologists to simuate earthquake motions deterministically in the longer period range. The other method has been developed by earthquake engineers to calculate earthquake motions stochastically in the shorter period range. The engineering method usually consists of amplitude spectrum, envelope function, and duration time of strong ground motions. They are usually estimated under the regression analysis for the empirical relations to earthquake magnitude and hypocentral distance. In the present study, the engineering method is improved on the basis of the theories of seismic-wave radiation and propagation. The new method is applied to simulate accelerograms observed at 3 stations for the 1978 off Miyagi prefecture earthquake (M = 7.4). The characteristics of all the accelerograms, e. g. the effect of rupture propagation on the fault plane, can be expressed by the simulated waves in the frequency range higher than 1 Hz, though the three stations are located at the different distances and directions from the earthquake fault. These results suggest that the new method is applicable for predicting strong ground motions of large earthquakes.

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SYNTHESIS OF FAR-FIELD ACCELEROGRAMS FROM THE 1976 TANGSHAN, CHINA, EARTHQUAKE (M_S7.8) BY SEMI-EMPIRICAL METHOD

壇一男, 渡辺孝英, 田中貞二

原稿種別: 本文
1989 年 403 巻 p. 35-42
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_35

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半経験的波形合成法による1976年中国唐山地震の遠方場における加速度波形の再現(梗概)

壇一男, 渡辺孝英, 田中貞二

原稿種別: 本文
1989 年 403 巻 p. 43-44
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_43

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多層多スパン鉄筋コンクリート平面骨組模型の実験 : 曲げ降伏するはりの軸方向伸びを考慮した鉄筋コンクリート平面骨組の弾塑性性状に関する研究(第1報)

坂田弘安, 和田章

原稿種別: 本文
1989 年 403 巻 p. 45-55
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_45

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It is well known that a reinforced concrete beam will elongate in the axial direction when the beam begins to yield in bending. If this phenomenon occurs throughout all the spans, the horizontal length of the building will incease as a whole. Due to spreading out of the columns, the elongation in the horizontal direction is restrained to some extent. Taking into account this phenomenon, the beam tending to yields is considered to be subject to compressive forces from the surrounding beams and columns. We have previously described an analysis of three-story single-span reinforced concrete frame. We have showed that rate of shear force of the first story columns changes because of the additional force from the beam of the second floor, and that second floor beam is subject to a compressive force from the first story columns. In this study, monotonic loading experiments of three types of multi-story multi-span reinforced concrete frame (FR1, FR3, FR7) are performed to consider the effect of axial restriction of beam deformation. All of the specimens are four stories high. Specimen FR1, FR3 and FR7 has single span, three spans and seven spans respectively. Main conclusions are : 1. Horizontal load-horizontal displacement relationships of each column differ, due to axial elongation of the beam tending to yield. 2. Horizontal loads of all reinforced concrete frames increase because of axial restriction imposed by the horizontal stiffness of columns.

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周辺拘束方形鉄筋コンクリート床スラブの終局強度について

坂尻公也, 日野正熙, 土橋由造

原稿種別: 本文
1989 年 403 巻 p. 57-65
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_57

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In this report, it is noted to have sufficient experimental support that the slab strength can be evaluated with considerable accuracy by such an improved version of the Park formula as involves introducing into it the midpanel deflection given by elastoplastic slab analysis and the shape coefficient for the compressive stress block provided in the ACI Code method. In an associated effort the relation between the degree of edge restraint and the slab strength thus obtained is checked against our corresponding test result.

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コンクリート梁部材断面の曲げ終局限界点に関する研究 : (その2)終局限界点特性値の算定式の誘導

鈴木計夫, 中塚佶, 阿波野昌幸

原稿種別: 本文
1989 年 403 巻 p. 67-77
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_67

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In the previous paper (Part 1), ultimate limit index points of partially prestressed concrete (PPC) beams are proposed, which relate to ultimate failure of concrete in flexural compression zones, fracture of tensile reinforcement and buckling of compressive reinforcement. Usefulness of the points are shown in evaluating the deformation capacity taking into account for falling behavior of moment-curvature relations of concrete flexural members. This paper describes on derivation of equations to calculate extreme fiber strains, flexural resistance moments and curvatures at the proposed ultimate limit index points of sections of concrete flexural members from prestressed concrete section to reinforced concrete one. The transition of ultimate failure modes and equations to calculate those limit index points of PPC flexural sections with the change of amount of reinforcement index is investigated, and wideness of applicable range and simpleness of the derived equations to calculate the points of ordinary PPC flexural sections are shown.

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分解架構法による鋼構造剛接骨組各層の塑性解析

秋山宏, 田川泰久

原稿種別: 本文
1989 年 403 巻 p. 79-86
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_79

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There have been proposed various analytical methods which may apply to steel moment frames subjected to strong earth-quakes. Most of them, however, are still too complicated or too simplified to evaluate the energy absorption capacity of structures affected by strain-hardening and various modes of buckling in inelastic range. To combine the prediction of story-frame behavior with the damage distribution law of structure, the energy absorption capacity of structures can be estimated. In this paper, inelastic story-frame analysis based on frame-unit concept is proposed. The frame-unit is a smallest unit of frame which is conveyable of the fundamental information of structural components. The frame-unit consists of one beam, one column and joint panel of them. The story-frame can he considered to be a collected body of frame-units. The structural behavior of the frame-unit up to it's ultimate state can be evaluted experimental basis and the overall behavior of the story-frame can be estimated through simple summation of the individual behavior of frame-units. Applicability of the method is verified by the experiment on 2-stories, 3-spans steel frame and steel portal frames with practical structural parameters.

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1質点履歴系に関する強震地動の破壊力尺度の検討

鈴木三四郎, 浅野幸一郎

原稿種別: 本文
1989 年 403 巻 p. 87-95
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_87

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This paper examined the destructiveness of strong ground motions for a single-degree-of freedom system with stable hysteresis, under forty-six accelerograms recorded in Japan and in the United States. An alternative index of the destructiveness named the "Cumulative Plastic Flow Intensity" calculated by the cumulative plastic flow response quantity, was introduced in terms of structural damage and earthquake-resistant capacity. The results obtained can be summerized as follows : (1) The ductility factor and the cumulative plastic flow response quantity, representing the destructiveness of ground motions, strongly depended on the natural frequency of the system. (2) The Cumulative Plastic Flow Intensity in case of the poly-linear hysteretic model compared with the bilinear hysteretic one showed a little overestimation. The contribution of the cumulative plastic flow quantity for the systems with longer period to the Cumulative Plastic Flow Intensity was remarkable. (3) The following simple experimental expression was obtained for the estimation of the Cumulative Plastic Flow Intensity (S_c) from the summation of square of ground motion acceleration (Power) ; S_c=a(Power)^c:c=1.0 or 1.5 in which a and c are the coefficients as described in the presented paper.

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崩壊問題の動的解析法 : 材料および幾何学的非線形を考慮した鋼構造骨組の動的崩壊解析その1

久保田英之, 和田章

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1989 年 403 巻 p. 97-103
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_97

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There are many difficulties in the nonlinear statical analysis for the collapse of structures. Many solution procedures for these problems were proposed such as the displacement control method, the artificial spring method, the perturbation method, the method using the current stiffness parameter and the arc length method. In the case of considering the rapture phenomenon of the materials, further hardships will obstruct to obtain a good solution because of the abrupt dropping of the strength. All structural problems which many researchers had treated as statically should have a dynamic effect tacitly such as the inertia force of the own weight of deforming structural element. At the critical or limit point, the inertia term will help to solve the equilibrium equations. In this paper, a meterial and geometrical nonlinear dynamic analysis method is presented for the space steel frames, and the two numerical examples show the effectiveness of the proposed method. 1) Axial force act to the straight bar that will be yield and snapped. 2) Elastic and plastic buckling problem under the dynamic loading.

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繰返し面内せん断力を受ける鉄筋コンクリート平板の弾塑性挙動に関する実験研究

大森信次, 高橋敏夫, 坪田張二, 井上範夫, 栗原和夫, 渡辺茂雄

原稿種別: 本文
1989 年 403 巻 p. 105-118
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_105

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The aim of this paper is to know the nonlinear behaviors of reinforced concrete panels subjected to cyclic shear forces, which can be used for the analysis of reinforced concrete structures like shear walls. Here the authors performed many tests of RC panels with parameters of reinforcement ratios and loading patterns. The panels were loaded with monotonic or cyclic in-plane shear forces by using a newly developed testing facility with automatically controlled 24 closed loop hydraulic actuators and a network of links. From the measured data of deformations and forces average stress-strain relationships of cracked concrete were calculated referring the Collins and Vecchio's study. The obtained results were investigated concerning the differences of nonlinear behaviours of cracked concrete between monotonic loading and cyclic loading. The main results are as follows. 1) Shear capacities in cyclic loads were reduced a little, compared with monotonically loaded cases. 2) The tension stiffening characteristics of concrete are dependent on reinforcement ratios and loading patterns. 3) Cyclic behaviours of cracked concrete are estimated such as residual stress and strain, slip stiffness in low stress states and the accumulation of residual strains caused by the expansion of panels, or dilatancy. When modelling the compressive state of concrete, such characteristics should be evaluated. These results are the fundamental features which will be used for proposing analytical models.

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円周方向に弾性支持され外圧を受ける円環と水圧を受ける直交異方性円筒シェルの弾性座屈荷重算定式の比較

日置興一郎, 奥田和弘

原稿種別: 本文
1989 年 403 巻 p. 119-124
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_119

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This paper deals with the approximate analysis of buckling load of some types of orthotropic cylindrical shells subjected to external pressure, proposing a simplified model, which is a ring supported in tangential direction by uniformly distributed springs. Comparing both the analytical results for the original and model structures, main conclusions obtained are as follows. 1) Transforming shell stiffness into the supporting spring constant in the formula of the circular rings, the buckling behavior of the above orthotropic shells can be simply estimated. 2) The formula of the elastic buckling loads of the circular rings gives the linear bifurcation loads of the isotropic shells subjected to the uniformly distributed external pressure in good accuracy by changing its dimensions. And the buckling mode of the axial direction is a half sine wave.

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平面弾性せん断型構造物-杭系の地震時応答制約設計

中村恒善, 竹脇出, 島野幸弘

原稿種別: 本文
1989 年 403 巻 p. 125-137
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_125

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液体貯槽における有限振幅液面動揺に関する研究 : (その4)軸対称回転貯槽の場合の理論展開とその球形貯槽への適用

大森博司, 藤原健, 松井徹哉, 松岡理

原稿種別: 本文
1989 年 403 巻 p. 139-151
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_139

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In the foregoing papers^<1-3)>, the sloshing problem of the liquid in the cylindrical storage has been investigated from the view point of the nonlinear sloshing problem. Direct method based on the variational functional derived by J. C. Luke^<4)> has been applied for the potential flow problem, where the admissible function which satisfies the geometrical boundary conditions can be found from the set of the harmonic function. In the case of the spherical storage which is most spreadly used for the storage tanks next to the cylindrical ones, the above mentioned approach, however, can not be used because of the characteristics of the harmonic function for the spherical coordinate system. In the case of the general axisymmetric storage which consists of the generator with the arbitrary configulation, it is more difficult to get the objective admissible function. Some discretizing methods can be adopted for the general problem which contains the arbitrary boundary condition, for instance, finite element method, boundary integral method, finite difference method, and so on. Generally, the boundary integral approach can be said to be most suitable for the potential problems. In the present paper, the nonlinear oscillative problem of the perfect fluid in the axisymmetric storage which consists of the arbitrary shaped generator is treated. By applying the boundary integeral technique, the boundary value problem can be reduced into the simultaneous nonlinear algebraic equation which consists of both the unknown velocity potential on the free surface and the surface elevation. The normal mode technique is used for the effective reduction of the freedom of the unknowns and the harmonic balance method is also utilized for pursueing the stationary solutions. As the numerical example, both the cylindrical and the spherical storages are adopted, where the numerical results are minutely compared with the experimental results by the shaking table test. From the results, it is shown that some nonlinear sloshing resonances occur by the external excitation with the frequency in the neighborhood of the resonance point and, additionaly, the swirling phenomenon can be analyzed by treating as the bifurcational problem in the frequency-amplitude space.

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計画系論文報告集目次 No.403 1989・9

原稿種別: 付録等
1989 年 403 巻 p. App2-
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_App2

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裏表紙

原稿種別: 表紙
1989 年 403 巻 p. Cover3-
発行日: 1989/09/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.403.0_Cover3

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