空腹桁架梁-空腹夹层板楼盖的静力性能分析
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摘要
空腹桁架梁-空腹夹层板是一种新型空腹夹层板,为研究其在静力作用下挠度变化,采用参数化建模分析,通过改变混凝土板厚度、空腹桁架梁及空腹夹层板上下肋刚度、剪力键和边柱刚度、跨高比等,建立94个有限元模型,得出这些因素对楼盖挠度的影响程度。研究表明,混凝土楼盖厚度增加,楼盖挠度先增加后减小;空腹桁架梁上下肋刚度与挠度近似呈线性变化;剪力键和边柱的刚度与挠度呈非线性变化,且随着刚度增大其对挠度影响程度逐渐降低;跨高比与挠度呈近似正比关系,且跨高比对结构挠度影响最大,为控制挠度的主控因素。
Hollow truss beam-fasting sandwich plate is a new type of hollow sandwich plate. In order to study the deflection of the plate under static force,parametric modeling analysis was adopted. By changing the thickness of concrete slab,stiffness of upper and lower ribs of hollow truss beam and hollow sandwich plate,the stiffness of the upper and lower ribs of the plate was studied. In this paper,94 finite element models of shear bond,side column stiffness and ratio of span to height were established,and the degree of influence of these factors on floor deflection was obtained. The results show that with the increase of floor thickness,the deflection of floor increases first and then decreases,the stiffness and deflection of the upper and lower ribs of an empty truss beam vary linearly,the stiffness and deflection of shear bond and side column show nonlinear variation. The ratio of span to height is approximately proportional to deflection,and the ratio of span to height has the greatest effect on the deflection of the structure,which is the main control factor of deflection.
Hollow truss beam-fasting sandwich plate is a new type of hollow sandwich plate. In order to study the deflection of the plate under static force,parametric modeling analysis was adopted. By changing the thickness of concrete slab,stiffness of upper and lower ribs of hollow truss beam and hollow sandwich plate,the stiffness of the upper and lower ribs of the plate was studied. In this paper,94 finite element models of shear bond,side column stiffness and ratio of span to height were established,and the degree of influence of these factors on floor deflection was obtained. The results show that with the increase of floor thickness,the deflection of floor increases first and then decreases,the stiffness and deflection of the upper and lower ribs of an empty truss beam vary linearly,the stiffness and deflection of shear bond and side column show nonlinear variation. The ratio of span to height is approximately proportional to deflection,and the ratio of span to height has the greatest effect on the deflection of the structure,which is the main control factor of deflection.
引文
[1]马克俭,黄勇,肖建春,等.钢筋混凝土网架与空腹夹层板空间结构的研究与应用综述[J].空间结构,1995(3):28-36+41.
[2]阮文川,丁敬华.空腹夹层板结构体系在工程上的应用[J].安徽建筑,2003(2):81-82.
[3]宋赟,马克俭,才琪,等.多层大跨度蜂窝型钢网格盒式结构动力分析[J].贵州大学学报(自然科学版),2017,34(4):82-85+92.
[4]才琪,马克俭,刘卓群.多层大跨度蜂窝形钢空腹夹层板楼盖刚度分析[J].贵州大学学报(自然科学版),2016,33(3):106-109+125.
[5]冯献慧,马克俭,陈本,等.正交斜放空腹夹层板楼盖自振特性分析[J].中国水运(下半月),2017,17(4):236-238.
[6]张华刚,马克俭.空腹夹层板刚度分析的简化算法及其静力性能分析[J].贵州工业大学学报(自然科学版),2003(5):66-71.
[7]黄勇,马克俭.空腹夹层板的拟板超级有限元分析[J].贵州工业大学学报(自然科学版),2003(4):79-82.
[8]孙涛,何秋霖,马克俭,等.钢空腹夹层板结构基本力学性能[J].后勤工程学院学报,2016,32(5):10-16+22.
[9]姚玲,张华刚,何奇,等.混凝土空腹夹层板静力性能的有限元参数分析[J].空间结构,2017,23(1):43-53.
[10]刘卓群,马克俭,肖建春,等.混凝土板对钢空腹夹层板楼盖静力性能影响分析[J].广西大学学报(自然科学版),2016,41(1):1-10.
[11]张瑞鹏,马克俭,刘卓群,等.大跨度空腹夹层板楼盖的静力稳定性分析[J].贵州大学学报(自然科学版),2015,32(5):91-94.
[12]张华刚,马克俭.空腹夹层板刚度分析的简化算法及其静力性能分析[J].贵州工业大学学报(自然科学版),2003(5):66-71.
[13]胡朝英.空腹夹层板静动力特性理论计算与试验研究[J].郑州大学学报(理学版),2018,50(1):123-126.
[14]吴帮,王泽曦,申波,等.型钢混凝土组合空腹夹层板结构静动力性能分析[J].建筑结构,2017,47(4):81-86.
[15]才琪.多层大跨度空间钢网格蜂窝型空腹楼盖的研究与应用[D].贵阳:贵州大学,2017.
[16]陈建伟,边瑾靓,王宁,等.考虑不同配筋率影响的板柱节点抗冲切性能分析[J].广西大学学报(自然科学版),2016,41(1):1-10.
[17]刘振林,卢智成,孟宪政,等.用于高压电气设备的剪切型铅减震器性能影响研究[J].地震工程学报,2016,38(4):564-569.
[2]阮文川,丁敬华.空腹夹层板结构体系在工程上的应用[J].安徽建筑,2003(2):81-82.
[3]宋赟,马克俭,才琪,等.多层大跨度蜂窝型钢网格盒式结构动力分析[J].贵州大学学报(自然科学版),2017,34(4):82-85+92.
[4]才琪,马克俭,刘卓群.多层大跨度蜂窝形钢空腹夹层板楼盖刚度分析[J].贵州大学学报(自然科学版),2016,33(3):106-109+125.
[5]冯献慧,马克俭,陈本,等.正交斜放空腹夹层板楼盖自振特性分析[J].中国水运(下半月),2017,17(4):236-238.
[6]张华刚,马克俭.空腹夹层板刚度分析的简化算法及其静力性能分析[J].贵州工业大学学报(自然科学版),2003(5):66-71.
[7]黄勇,马克俭.空腹夹层板的拟板超级有限元分析[J].贵州工业大学学报(自然科学版),2003(4):79-82.
[8]孙涛,何秋霖,马克俭,等.钢空腹夹层板结构基本力学性能[J].后勤工程学院学报,2016,32(5):10-16+22.
[9]姚玲,张华刚,何奇,等.混凝土空腹夹层板静力性能的有限元参数分析[J].空间结构,2017,23(1):43-53.
[10]刘卓群,马克俭,肖建春,等.混凝土板对钢空腹夹层板楼盖静力性能影响分析[J].广西大学学报(自然科学版),2016,41(1):1-10.
[11]张瑞鹏,马克俭,刘卓群,等.大跨度空腹夹层板楼盖的静力稳定性分析[J].贵州大学学报(自然科学版),2015,32(5):91-94.
[12]张华刚,马克俭.空腹夹层板刚度分析的简化算法及其静力性能分析[J].贵州工业大学学报(自然科学版),2003(5):66-71.
[13]胡朝英.空腹夹层板静动力特性理论计算与试验研究[J].郑州大学学报(理学版),2018,50(1):123-126.
[14]吴帮,王泽曦,申波,等.型钢混凝土组合空腹夹层板结构静动力性能分析[J].建筑结构,2017,47(4):81-86.
[15]才琪.多层大跨度空间钢网格蜂窝型空腹楼盖的研究与应用[D].贵阳:贵州大学,2017.
[16]陈建伟,边瑾靓,王宁,等.考虑不同配筋率影响的板柱节点抗冲切性能分析[J].广西大学学报(自然科学版),2016,41(1):1-10.
[17]刘振林,卢智成,孟宪政,等.用于高压电气设备的剪切型铅减震器性能影响研究[J].地震工程学报,2016,38(4):564-569.