預(yù)制裝配式鋼框架柱拼接節(jié)點(diǎn)力學(xué)性能理論分析
發(fā)布時(shí)間：2018-08-20 20:10
【摘要】：傳統(tǒng)鋼框架柱柱連接常采用焊接連接方式,然而焊接連接方式存在著對(duì)焊接技術(shù)、現(xiàn)場(chǎng)施工環(huán)境要求高,容易產(chǎn)生脆性破壞等缺陷,從而當(dāng)結(jié)構(gòu)大量使用焊接節(jié)點(diǎn)時(shí)其檢測(cè)成本和安全隱患均有所增加。隨著預(yù)制裝配式建筑體系的提出及廣泛應(yīng)用,焊接節(jié)點(diǎn)因其自身局限性以不再適應(yīng)預(yù)制裝配式建筑體系的需求,拼接節(jié)點(diǎn)因其具有安裝方便,力學(xué)性能好等優(yōu)勢(shì)成為預(yù)制裝配式建筑體系中柱柱連接的主要方式。本文研究的是預(yù)制裝配式建筑體系中常用的方鋼管和H型鋼兩種結(jié)構(gòu)構(gòu)件的柱拼接節(jié)點(diǎn)。其中方鋼管柱對(duì)穿螺栓拼接節(jié)點(diǎn)由方鋼管柱、內(nèi)套筒、對(duì)穿螺栓及高強(qiáng)螺栓拼接而成,H型鋼柱高強(qiáng)螺栓拼接節(jié)點(diǎn)由H型鋼柱、U型鋼拼接板及高強(qiáng)螺栓拼接而成。本文以上述兩種節(jié)點(diǎn)為研究對(duì)象,首先利用等強(qiáng)度設(shè)計(jì)方法對(duì)節(jié)點(diǎn)進(jìn)行靜力計(jì)算,設(shè)計(jì)出合理的螺栓數(shù)目及連接件尺寸；其次利用ANSYS有限元分析軟件對(duì)設(shè)計(jì)出的兩種節(jié)點(diǎn)的標(biāo)準(zhǔn)試件進(jìn)行靜力分析及滯回性能分析觀察節(jié)點(diǎn)的承載力變化及耗能能力,并通過(guò)改變方鋼管柱對(duì)穿螺栓拼接節(jié)點(diǎn)內(nèi)套筒長(zhǎng)度及厚度、H型鋼柱高強(qiáng)螺栓拼接節(jié)點(diǎn)拼接板腹板、翼緣板位置厚度、拼接板長(zhǎng)度以及試件軸壓比等參數(shù),對(duì)改變參數(shù)后的新試件進(jìn)行靜力分析和滯回性能分析,得出各試件的荷載-位移曲線、滯回曲線、骨架曲線及等效粘性阻尼系數(shù)等數(shù)據(jù),通過(guò)對(duì)數(shù)據(jù)的分析探討內(nèi)套筒及拼接板尺寸對(duì)節(jié)點(diǎn)力學(xué)性能的影響變化規(guī)律；最后,通過(guò)總結(jié)內(nèi)套筒及拼接板尺寸對(duì)節(jié)點(diǎn)力學(xué)性能影響的變化規(guī)律,給出了內(nèi)套筒及拼接板尺寸的合理設(shè)計(jì)建議。
[Abstract]:The traditional steel frame column connection often adopts the welding connection mode, however, the welding connection mode has some defects, such as welding technology, high requirement of the field construction environment, easy to produce brittle failure, etc. Therefore, when the welded joints are used extensively, the detection cost and safety risks are increased. With the development of prefabricated building system and its wide application, welding joints are no longer suitable for the needs of prefabricated building systems because of their own limitations. The advantages of good mechanical properties become the main way of column connection in prefabricated building system. In this paper, the column splicing joints of square steel pipe and H-section steel are studied in prefabricated building system. The splicing joint of square steel column and piercing bolt is made up of square steel pipe column, inner sleeve, pair bolt and high strength bolt. The high strength bolt splicing joint of H section steel column is made up of H section steel column U section steel splice board and high strength bolt. In this paper, the two kinds of joints mentioned above are taken as the research object. Firstly, the static calculation of the joints is carried out by using the equal strength design method, and the reasonable number of bolts and the size of the connectors are designed. Secondly, the static analysis and hysteretic performance analysis of the standard specimens of two kinds of joints are carried out by using the ANSYS finite element analysis software to observe the change of the bearing capacity and the energy dissipation capacity of the joints. By changing the length and thickness of the sleeve in the splicing joint of square steel pipe column, the thickness of the flange plate, the length of the splice plate and the axial compression ratio of the specimen, the thickness of the splicing plate, the thickness of the flange plate, the length of the splicing plate and the axial compression ratio of the specimen are changed. The static analysis and hysteretic performance analysis of the new specimen after changing the parameters are carried out, and the load-displacement curve, hysteretic curve, skeleton curve and equivalent viscous damping coefficient of each specimen are obtained, such as the load-displacement curve, hysteretic curve, skeleton curve and equivalent viscous damping coefficient, etc. Through the analysis of the data, the influence of the size of the inner sleeve and the splicing board on the mechanical properties of the joints is discussed. Finally, the variation of the size of the inner sleeve and the splicing board on the mechanical properties of the joints is summarized. The reasonable design suggestions for the dimensions of inner sleeve and splice board are given.
【學(xué)位授予單位】：山東建筑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU391
本文編號(hào)：2194851
[Abstract]:The traditional steel frame column connection often adopts the welding connection mode, however, the welding connection mode has some defects, such as welding technology, high requirement of the field construction environment, easy to produce brittle failure, etc. Therefore, when the welded joints are used extensively, the detection cost and safety risks are increased. With the development of prefabricated building system and its wide application, welding joints are no longer suitable for the needs of prefabricated building systems because of their own limitations. The advantages of good mechanical properties become the main way of column connection in prefabricated building system. In this paper, the column splicing joints of square steel pipe and H-section steel are studied in prefabricated building system. The splicing joint of square steel column and piercing bolt is made up of square steel pipe column, inner sleeve, pair bolt and high strength bolt. The high strength bolt splicing joint of H section steel column is made up of H section steel column U section steel splice board and high strength bolt. In this paper, the two kinds of joints mentioned above are taken as the research object. Firstly, the static calculation of the joints is carried out by using the equal strength design method, and the reasonable number of bolts and the size of the connectors are designed. Secondly, the static analysis and hysteretic performance analysis of the standard specimens of two kinds of joints are carried out by using the ANSYS finite element analysis software to observe the change of the bearing capacity and the energy dissipation capacity of the joints. By changing the length and thickness of the sleeve in the splicing joint of square steel pipe column, the thickness of the flange plate, the length of the splice plate and the axial compression ratio of the specimen, the thickness of the splicing plate, the thickness of the flange plate, the length of the splicing plate and the axial compression ratio of the specimen are changed. The static analysis and hysteretic performance analysis of the new specimen after changing the parameters are carried out, and the load-displacement curve, hysteretic curve, skeleton curve and equivalent viscous damping coefficient of each specimen are obtained, such as the load-displacement curve, hysteretic curve, skeleton curve and equivalent viscous damping coefficient, etc. Through the analysis of the data, the influence of the size of the inner sleeve and the splicing board on the mechanical properties of the joints is discussed. Finally, the variation of the size of the inner sleeve and the splicing board on the mechanical properties of the joints is summarized. The reasonable design suggestions for the dimensions of inner sleeve and splice board are given.
【學(xué)位授予單位】：山東建筑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TU391
【引證文獻(xiàn)】
相關(guān)會(huì)議論文 前1條
1 趙永杰;陶怡;;高強(qiáng)螺栓連接的構(gòu)造及計(jì)算[A];第三屆全國(guó)鋼結(jié)構(gòu)工程技術(shù)交流會(huì)論文集[C];2010年
，本文編號(hào)：2194851
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