日本建築学会構造系論文報告集

表紙

原稿種別: 表紙
1986 年 366 巻 p. Cover1-
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_Cover1

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目次

原稿種別: 表紙
1986 年 366 巻 p. Cover2-
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_Cover2

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CONTENTS

原稿種別: 目次
1986 年 366 巻 p. Toc1-
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_Toc1

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<内容区分と表示について>

原稿種別: 目次
1986 年 366 巻 p. Toc2-
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_Toc2

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奥付

原稿種別: 目次
1986 年 366 巻 p. Toc3-
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_Toc3

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清水市における飛来海塩粒子に関する研究

本橋健司, 樫野紀元, 冨板崇

原稿種別: 本文
1986 年 366 巻 p. 1-10
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_1

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Monitoring of sea water aerosol which is known to be one of important deterioration agents in coastal areas was performed in Shimizu City, Shizuoka Prefecture which is located in Tokai district, Japan, from November 1983 to October 1984. Eighteen buildings in various distance from the seashore (10-4500m) were chosen for monitoring sites. Specimens for collecting sea water aerosol, were gauze and four types of surface finished steel sheets (precoated galvanized steel sheets, galvanized steel sheet, steel sheets coated with a red lead anticorrosive paint, and steel sheets coated with an acrylic emulsion paint). In each building, the specimens were put both on a wall face to the sea and on a wall back or side to the sea in order to examine the difference due to directions. All the specimens on the walls had been sheltered from rain and were exchanged for new ones in every month. Amounts of salinity were determined by colqrimetric analysis for chloride ions. The results obtained are summarized as follows : 1) Monthly amounts of salinity showed logarithmic normal distribution at most monitoring sites. 2) The relation between seasonal changes in amounts of salinity and those in wind was examined, however, the correlation was not made clear in this study. 3) Amounts of salinity on the walls face to the sea were found to be significantly higher than those on the walls back or side to the sea within several hundreds meters from the, seashore. 4) The types of specimens also affected amounts of salinity. The measured values of salinity were decreased in the order of gauze, steel sheets coated with a red lead anticbrrosive paint, steel sheets coated-with an acrylic emulsion, precoated galvanized steel sheets, and galvanized steel sheets. 5) The distribution of amounts of salinity were primarily determined by the distance from the seashore. The relationships between the two could be obtained.

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コンクリートの凍害におけるひびわれの役割の考察

田畑雅幸, 洪悦郎, 鎌田英治

原稿種別: 本文
1986 年 366 巻 p. 11-17
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_11

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The amount and extent of the cracks observed on the surface of concrete were measured by using test specimens exposed to the outdoors in Sapporo for 20 years. The process of the crack formation caused by frost action was discussed based on the measurements, with use of former results of freezing and thawing tests which were carried out in order to explain the influence of craek formation on frost deterioration of concrete. The following conclusions regarding the role of these cracks on frost damage of concrete seem to be reasonable. (1) Visible cracks observed on the surface of concrete are caused by the expansion of the interior and not by the direct action of the freezing and thawing. (2) The acceleration of frost damage derived from the cracks mainly arises from the penetration of water into the concrete from the surface. (3) The action, which enlarges cracks during the freezing process, does not play a too significant role in frost damage of concrete.

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コンクリート強度の推定式に関する研究(II) : 温度,湿度条件が異なるもとでの任意材令強度の推定方法 : 高炉セメントB種,プライアッシュセメントB種を使用する場合

寺田米男

原稿種別: 本文
1986 年 366 巻 p. 18-26
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_18

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Following previous paper, author proposes the estimated formulas, of arbitrary ages concrete strength, uses Portland blast-furnase slag cement (Type B) and portland flyash cement (Type B). Curing temperatures are 20℃, 10℃ and 5℃. Curing conditions are in water, cover seal and in air. As regards portland fly-ash cement concrete (Type B), after 28 days of concrete age, the strength formula of pozzalanic-hydration is added to the estimated formula.

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若材令時より乾燥を受けるモルタル部材の圧縮強度の内部分布について

永松静也, 竹田吉紹, 佐藤嘉昭

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1986 年 366 巻 p. 27-38
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_27

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The distributions of evaporable water content, combined water content, compressive strength and Young's modulus in mortar specimens exposed in air from an early age were experimentally investigated, and they, too, were estimated by numerical analysis. The experimental and analytical results well agreed to each other.

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ハケを用いたオープンジョイントの水密性の指標に関する考察

内田祥哉, 野城智也, 関谷哲也

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1986 年 366 巻 p. 39-45
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_39

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In past researches, pressure difference between outside and inside of the joint supposed to be the absolute and the most important index for watertightness in open joint. But in the open joint, where the brushes are applied as the rain barrier, the values of pressure differences are not correspond to the result of the water penetration experiments. Through experiments and simulations, this paper proves that the velocity of the air flow, caused by the accidental openings in wind barrier from outside to inner spaces through the joint, corresponds to the results of waterleakage and it is the more important and universal index for watertightness in open joint.

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壁式プレキャスト鉄筋コンクリート構造の鉛直接合部の力学的挙動に関する研究 : その1 S型および水平加力型実験

新藤忠徳, 末永保美, 重信恒雄

原稿種別: 本文
1986 年 366 巻 p. 46-55
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_46

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S-type and Horizontal Loading type experiments on Vertical Joint of Box-Frame-Type Precast Rrinforced Concrete were carried out. As a result, the followings were found. The strengths at which shear crack are produced have something to do with shearing area ratio, ΣA_2/A_1, and little to do with cotter bars ratio, P_s=Σa_t/A_1 P'_s=Σa_t/A_1 P'_s=Σa_t/ΣA_2. τ_<cr>/_jF_t=1.0・ΣA_2/A_1 gives a rough average, (in which,ΣA_2/A_1<0.6) Ultimate bearing strengths have something to do with shearing area and cotter bars ratio. But an ascent of bearing strenghs are not recognized very much at ΣA_2/A_1>0.6. Ultimate bearing strengths of Horizontal Loading type experiments took a figure when the quantity of slip of the wall panel through Vertical Joint amounted to 3 mm. But, yet this figure was very high in comparison with one of S-type experiments. Theretore, we are going to reconsiden in vext report.

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矩形開口を有する鋼製H形断面材の終局耐力(I-2) : 無補強の場合

福島暁男, 小松博

原稿種別: 本文
1986 年 366 巻 p. 56-66
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_56

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This report (I-2) is the continuation of the previous report (I-1), and it was intended to clarify the mechanical properties of a steel H-section with an unreinforced rectangular hole. As for the experiment, the repeated loading experiment supposing an earthquake load and the monotonous loading experiment to let a shearing force excel in the sections with openings were carried out. From these experimental results, the strength, deformability, hysteresis characteristics and so on were determined, and a comparison with the strength equation derived in the previous report was attempted to examin its propriety.

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不規則鋼構造骨組の耐震設計法

秋山宏

原稿種別: 本文
1986 年 366 巻 p. 67-75
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_67

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An earthquake resistant design methood is proposed for inordinary structures which are characterised by irregular mass distribution and complicated constitution of frames. By imposing some restrictions on strength distribution over the structure, damage distribution in those structures becomes controlable. The design method is constructed on the basis of comparison between the energy input due to earthquakes and the energy absorpton capacity of structure.

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鉄筋コンクリート造実大7層建物の建設とその弾性性状 : 日米共同耐震実験研究その1

岡本伸, 芳村学, 上之薗隆志, 中田慎介

原稿種別: 本文
1986 年 366 巻 p. 76-84
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_76

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A Full-scale reinforced concrete seven-story structure was designed basically according to the U. S. and Japanese building practices and constructed at the large-scale structural test laboratory of Building Research Institute, Ministry of Construction, to experimentally investigate its earthquake response behavior. The structure was carefully supervised in the course of construction to minimize any deviation from the original design, and such attempt was nearly achieved. Before the earthquake test of the structure, the structure's flexibility was experimentally obtained to estimate its elastic properties. It was found from eigenvalue analysis using measured flexibility that computed natural periods are very accurate for lower vibration modes but inaccurate for higher modes. It was also found that the structure's stiffness determined by inverting the measured flexibility can not be regarded as reliable.

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3次元有限回転を考慮した薄肉弾性体の大変形解析 : 基礎方程式の誘導

鈴木敏郎, 元結正次郎

原稿種別: 本文
1986 年 366 巻 p. 85-93
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_85

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The deformation near a particle of a elastic thin continuum may be successive superposition of a rigid-body finite translation, a pure finite stretch along the principal directions and rigid-body finite rotation. In former many papers for a finite deformation theory of elastic thin continua, the displacement, the strain and the deformation gradient fields were mainly investigated. Recently the effect of rotations has attracted special interests since the rotation part of deformation is of particular importance in the non-linear theories of thin continua such as bars, plates and shells. In several papers for the influence of finite rotations, the description of the rotation field is based on the Total-Lagrangian formulation. But that description is not suitable for numerical analyses of large deformation problems. In this paper, more suitable method for large deformation analyses is lead, applying the Updated-Lagrangian formulation description.

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鉄筋コンクリート柱の曲げ終局耐力算定式と強度包絡曲面

阿部浩一

原稿種別: 本文
1986 年 366 巻 p. 94-105
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_94

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Using the assumptions of stress-strain relationship and of strain distribution, we computed the ultimate bending strength about 7500 models of reinforced concrete columns in each principal and diagonal axis of a cross section under constant axial forces. On the basis of these values, we propose the equations which can evaluate the ultimate bending strength about principal and diagonal axes under all range of axial force. And using them, we show the interaction curved surface of column strength. The proposed equations consist of Eq. (6)〜Eq. (22) and some examples of interaction curved surface are shown in Fig. 10(a), Fig. 10(b). These equations are formed with hyperbolic tangent function of normalized axial force and their coefficient are expressed with the total strength of concrete (C_0) and reinforcement (T_0) respectively and the distance between tension and compression center of reinforcement gravity (g_0, g_1, g_2, g_3) of each cross section. The values, calculated on these equations (Mu. eq), are good approximation to the 7500 computed models (Mu. cal) and correspond to the 82 results of our experiment (Mmax).

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曲げモーメントとせん断力をうける角形鋼管柱の埋込み形式中柱柱脚部における力学性状 : その1 実験計画と荷重-変形関係

中島茂壽, 五十嵐定義

原稿種別: 本文
1986 年 366 巻 p. 106-118
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_106

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A total of 93 steel column bases were tested. The study was composed of two main groups : one was undertaken to examine the bearing mechanism, and the other was the effects of the reinforcing methods on the strength, stiffness and hysteretic characteristics of the connections. For the former, the variables considered were : (1) embedment length. (2) width to thickness ratio, and (3) concrete filling. For the latter, the main variables were : (4) size and thickness of base plate, (5) spacing between anchor bolts, (6) hoops, (7) rib, and (8) welded reinforcements. In this paper, the test program and the load-displacement relationships are reported. The results may be summarized as follows : (1) The load-displacement curves show the slip type, when the embedment length is short. (2) The presence of anchor bolts or base plate has little effect on the load-displacement curves, when the embedment length is twice the tubular depth. (3) The presence of welded reinforcements, welded rib or concrete filling slightly increases the stiffness of the connections. These hysteresis loops indicate more stable softening type as compared with the loop without any reinforcements. (4) In the case of unreinforcement, the needful embedment length to take the form of a plastic hinge in steel column at the maximum load is influenced by width to thickness ratio, existence of concrete filling, yield point of the steel column, and compressive strength of the concrete.

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貫通仕口による木造ラーメン(大黒柱)構造の研究 : その1 仕口の挙動に関する実験的研究

後藤一雄

原稿種別: 本文
1986 年 366 巻 p. 119-125
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_119

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The traditional wooden houses in Japan was constructed by the semi rigid frame system. Although, these structure systems are untouched by the mechanical researchers. This report is experimental research on the panel point of the wooden semi rigid frame so cold "Nuki" structure, by use the small models.

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鉄筋コンクリート部材における付着劣化過程の解析的研究 : (その3) 柱主筋の接合部からの抜け出し挙動

多田利正, 武田寿一

原稿種別: 本文
1986 年 366 巻 p. 126-131
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_126

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An interior beam-column joint in a ductile moment-resisting reinforced concrete frame was assumed and eight different cases of bond characteristics of column reinforcement in the joint were hypothesized. A previously developed computer program was applied to each case, and the bond deterioration processes of column reinforcement in the joint under seismic loading were investigated theoretically through the hysteretic behavior of column-end hinge, pullout of column reinforcement from joint, etc. According to the bond strengths in the joint the hysteretic behavior of column end hinge showed drastic changes and indicated the importance of assessing "bond" in the joint, and farther, it was explained theoretically that both the reduction of flexural moment capacity at column end and the compressive failure of hinge concrete were accelerated considerably when bond strength in the joint was inadequate.

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鋼管くい基礎接合部の終局耐力と変形能力

桐原英秋, 牧野俊雄, 棚橋秀光, 秋山宏

原稿種別: 本文
1986 年 366 巻 p. 132-141
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_132

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Ultimate strength and deformability of the footing connections of steel pipe piles embedded in footing concrete have been examined by adopting peripheral reinforcing bars such as ring bars, spiral bars, and vertical bars. It is shown that the connections can develop preferable behavior when peripheral bars are disposed adequately together with main bars. Based on the experimental results, failure modes of the connections are introduced inclusively and empirical formulas for the ultimate strength are derived, which may enable a more rational earthquake resistant design of pile foundations.

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壁板スリップ破壊によって支配される1スパン1層鉄筋コンクリート造 : 耐震壁の水平耐力算定式

富井政英, 江崎文也

原稿種別: 本文
1986 年 366 巻 p. 142-154
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_142

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SI単位の換算率表

原稿種別: 付録等
1986 年 366 巻 p. App1-
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_App1

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裏表紙

原稿種別: 表紙
1986 年 366 巻 p. Cover3-
発行日: 1986/08/30
公開日: 2017/12/25

DOIhttps://doi.org/10.3130/aijsx.366.0_Cover3

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