發(fā)布時(shí)間：2018-01-05 06:06

  本文關(guān)鍵詞：半剛接鋼框架—帶支撐鋼板剪力墻抗震性能研究　出處：《哈爾濱工業(yè)大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 帶支撐鋼板剪力墻 抗側(cè)構(gòu)件 靜力分析 時(shí)程分析

【摘要】：鋼框架—鋼板剪力墻體系由框架梁、框架柱、鋼板剪力墻構(gòu)成。鋼板剪力墻與框架梁柱共同抵抗水平荷載，其中鋼板剪力墻充當(dāng)主要抗側(cè)力構(gòu)件；在高層框架-鋼板剪力墻結(jié)構(gòu)體系中，連續(xù)的鋼板剪力墻視為腹板，平面內(nèi)剛度很大，具有很高的初始剛度，隨著水平荷載（水平側(cè)移）增大，內(nèi)填鋼板逐漸形成拉力帶（較大的薄膜拉力），提高了結(jié)構(gòu)抗側(cè)移剛度以及承載力等。 在實(shí)際工程中，作為鋼板剪力墻的鋼板比較厚，即浪費(fèi)材料又增大了結(jié)構(gòu)自重。為了結(jié)構(gòu)設(shè)計(jì)既經(jīng)濟(jì)合理又能獲得良好的性能，本文提出了半剛接-帶支撐鋼板剪力墻結(jié)構(gòu)體系，此類結(jié)構(gòu)薄板和支撐協(xié)同作用好，當(dāng)荷載不大時(shí)支撐能為薄板提供有效的平面外約束，提高了初始剛度，當(dāng)荷載繼續(xù)較大時(shí)，薄板逐漸形成多條斜向拉力帶，為支撐提供有效的平面外約束；通過前后薄板和支撐之間的協(xié)同作用，使得這種結(jié)構(gòu)體系具有很好的靜動(dòng)力性能。 基于半剛接-帶支撐鋼板剪力墻結(jié)構(gòu)體系，本文應(yīng)用ANSYS有限元軟件對結(jié)構(gòu)模型進(jìn)行非線性靜力分析以及時(shí)程響應(yīng)分析，完成了以下內(nèi)容： （1）對半剛接-帶支撐鋼板剪力墻結(jié)構(gòu)模型進(jìn)行了變參數(shù)有限元非線性靜力分析，研究了支撐形式、跨高比、板厚、支撐截面尺寸對結(jié)構(gòu)的剛度、承載力等的影響規(guī)律；分析結(jié)果表明：‘X’型支撐結(jié)構(gòu)比‘十’型和單斜型支撐結(jié)構(gòu)的剛度和承載力高；當(dāng)跨高比為4/3時(shí)，板的拉力帶發(fā)育最好；同時(shí)，板厚、支撐截面尺寸也是結(jié)構(gòu)受力性能的主要影響參數(shù)。 （2）對‘X’支撐一跨一層半剛接鋼框架-帶支撐鋼板剪力墻結(jié)構(gòu)施加往復(fù)荷載，分析結(jié)構(gòu)的滯回性能；結(jié)果表明：結(jié)構(gòu)滯回環(huán)比較飽滿，耗能性能良好。 （3）對三跨九層的‘X’支撐半剛接鋼框架-帶支撐鋼板剪力墻結(jié)構(gòu)體系和半剛接-帶支撐框架結(jié)構(gòu)體系進(jìn)行了時(shí)程響應(yīng)分析，，對比分析結(jié)果，研究了結(jié)構(gòu)體系的耗能情況。 總體而言，帶支撐鋼板剪力墻是一種有效的抗側(cè)力構(gòu)件，具有較高的承載力以及良好的延性性能；在地震作用下，半剛接鋼框架-帶支撐鋼板剪力墻這種結(jié)構(gòu)體系相比半剛接鋼框架-帶支撐剪力墻抗震性能好，耗能性能更好。
[Abstract]:Steel frame-steel shear wall system is composed of frame beam, frame column and steel plate shear wall. Steel plate shear wall and frame Liang Zhu resist the horizontal load together, in which steel plate shear wall acts as the main lateral force resistant member. In the high-rise frame-steel shear wall structure system, the continuous steel plate shear wall is regarded as web plate, and the plane stiffness is very large, with a high initial stiffness, which increases with horizontal load (horizontal lateral shift). The inner filled steel plate gradually forms a tensile belt (larger film tension force), which improves the lateral stiffness and bearing capacity of the structure. In the actual engineering, the steel plate as the steel plate shear wall is thicker, which not only wastes the material but also increases the weight of the structure. In order to design the structure, it is economical and reasonable and can obtain good performance. In this paper, a semi-rigid joint-braced steel plate shear wall structure system is proposed. This kind of structure has good synergistic effect between thin plate and bracing. When the load is small, the bracing can provide effective out-of-plane constraint for the thin plate and improve the initial stiffness. When the load continues to be larger, the thin plate gradually forms a number of diagonal tension bands, which provide effective external constraints for the bracing. The structure system has good static and dynamic performance through the synergistic action between the front and rear thin plates and braces. Based on the semi-rigid-braced steel plate shear wall structure system, the nonlinear static analysis of the structure model is carried out by using ANSYS finite element software to analyze the response of the structure in time, and the following contents are completed: In this paper, the nonlinear static analysis of semi-rigid jointed steel plate shear wall model with variable parameters is carried out, and the stiffness of the structure is studied, such as the form of bracing, the ratio of span to height, the thickness of plate, and the size of supporting section. The influence law of bearing capacity and so on; The results show that the stiffness and bearing capacity of the structure are higher than those of the 'ten' and monoclinic bracing structures. When the ratio of span to height is 4/3, the tensile band of the plate is the best. At the same time, the thickness of the plate and the size of the supporting section are also the main influence parameters of the structure. (2) to apply reciprocating load to the steel frame-shear wall structure with steel plate with support, and to analyze the hysteretic behavior of the structure; The results show that the hysteretic loop of the structure is full and energy dissipation is good. In this paper, the time history response analysis of three span and nine story steel frame with steel frame and steel plate shear wall with support and the structure system with half rigid connection and braced frame are carried out, and the results are compared. The energy dissipation of the structure system is studied. Generally speaking, steel plate shear wall with bracing is an effective lateral force resistant member with high bearing capacity and good ductility. Under seismic action, the seismic performance and energy dissipation performance of semi-rigid steel frame-steel shear wall are better than that of semi-rigid steel frame-shear wall.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU391;TU352.11

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