文档介绍：摘要本文在总结国内外关于冷弯薄壁型钢住宅组合楼板研究的基础上,结合本次的试验,设计了“带OSB板的冷弯薄壁型组合楼板”试件;进行了改变边界条件的组合楼板振动分析,首先,测得在lkN静荷载作用下组合楼板的跨中挠度值;其次,测得各种工况下的组合楼板的振动频率。由这两种数据来判断组合楼板的舒适度。采用通用有限元程序ANSYS,对上述楼板进行了三维建模,并模拟分析了楼板在 lkN集中静荷载作用下组合楼板的跨中挠度以及楼板的基本频率;在有限元分析中,随着楼板的边界条件的改变,楼板在静力作用的挠度及频率也随着改变。本文研究表明, 组合楼板两对边简支,托梁端部固结的楼板刚度最大,受静荷载作用下的挠度最小,频率则最大。组合楼板两对边无支撑,托梁端部简支的楼板刚度最小,受静荷载作用下的挠度最大,频率最小。由此可知,提高楼板的刚度可以有效的减少楼板在静力作用下的挠度,增大楼板的基本频率,这些均可以有效的预防由楼板振动而引起人的不舒适。通过ANSYS分析结果与试验结果的对比分析,提出了ANSYS这种通用程序是可以作为楼板舒适度预测的一种有效方法。根据本文的试验和理论研究结果,对国外现有的舒适度设计准则进行了评析,提出了适合我国的设计准则及方法。该计算方法,理论相对比较完善,方法简单,其计算结果合理,可供实际工程设计参考。最后,以北京东方太阳新城的实际工程为算例,对本文提出的计算方法进行了验证, 计算结果符合所提设计标准。关键词:冷弯薄壁型钢住宅组合楼板振动性能试验研究非线性有限元设计准则 Abstract Based on me resear℃h and application Steel posite Floor inChina and abroad,according t0thetest,“Cold—Formed posite Floor with OSB slab”眦 designed .nIese connecflops ale based on theexperiment and theoretical results which 舶m oIlr ch锄ge boundary condition posite floorvibration,firstly,measure lkN static load,secondly,measure basicfrequency posite floor· With the finiteelenlent analyze software ANSYS,the 3D modles according totheconnections are displacement posite floor under the lkN staticloading andbasicfrequency are 撇1), fm时analyse,along with boundary condition changed,center displacement ofthe collll)osite floormlder thestaticloading andbasicfrequency are investigation ofthe floorof 抑o sidesfreely-supported andjoist consolidation,stiffness ofthis floor most,centerdisplacement of posite f100r under the staticloading least and basic frequency floor of freely-supported,stiffness of thisfloor least,centerdisplacement posite flooruncler the8tatic loamng mostand basicfrequency shows,improve posite floor call reduce center displacement of posite floorunder the staticloading effectively andincrease basic frequencY posite floor,this mearlscanprevent annoying floorvibration due tonormal human activlty. Compare ANSYS analyse resultwith testresult,bri