带支撑的轻钢龙骨墙体抗侧力性能有限元分析
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摘要
轻钢龙骨结构房屋具有自重轻、结构稳定性高,抗震抗风性能好,构件工厂标准化生产,材料可回收再利用,环保节能等优点,有良好的发展前景。
传统轻钢龙骨体系的墙体一般由骨架和结构板共同受力,但对带支撑的钢骨架的应用和研究尚不够深入。本文针对不同支撑的轻钢龙骨墙体,对其抗侧力性能进行了有限元分析,主要工作如下：
提出三种不同支撑的轻钢龙骨墙体：轻钢龙骨刚架体系、轻钢龙骨刚架支撑体系、轻钢龙骨端支撑体系；采用有限元SAP2000中的Pushover静力非线性分析法,分析比较轻钢龙骨刚架体系、刚架支撑体系和端支撑体系的抗侧力性能；通过改变钢丝网、墙体的高宽比、片柱的间距等因素,研究带支撑的轻钢龙骨墙体抗侧力性能的影响因素,最后将一种带支撑的轻钢龙骨墙体与传统的带蒙皮的组合墙体的抗侧力性能进行比较。
通过本文所做的分析和研究工作,得到下列结论：
抗侧力性能由高到低排列为：轻钢龙骨刚架支撑体系,轻钢龙骨端支撑体系,轻钢龙骨刚架体系；极限承载力满足带蒙皮的组合墙体的抗侧力性能要求。钢丝网对于带支撑的轻钢龙骨墙体的抗侧力极限承载力有一定的贡献；对于同一种带支撑的轻钢龙骨墙体,墙体的高宽比越高,墙体的极限承载力越小；墙体片柱的间距越大,极限承载力越小；墙体首先在墙体柱底、支撑杆与片柱的连接处出现塑性铰,是结构的薄弱部位。
本文对于以后轻钢龙骨结构体系的理论研究和实际应用有一定的参考意义。
Light-gauge steel structure has good development prospect, because of light weight, good structural stability, seismic and wind performance, standardized production, recyclable materials, environmental protection and energy saving。
The traditional light-gauge steel wall supports force generally by steel frame and structural board, and the application and research on the wall with steel frame and bracing is not deep enough. The performance of the lateral loading capacity of light-gauge steel wall with bracing is studied in thesis by the finite element analysis. The main work as follows:
Three different kinds light-gauge steel wall with bracing were discussed: light-gauge steel frame system, light-gauge steel frame-bracing system and light-gauge steel side-bracing system. The Pushover static nonlinear analysis model of SAP2000 is used to analyze the performance of three light-gauge steel walls with bracing; and compares with lateral loading capacity of compound wall with diaphragm; and the influence factors are discussed such as steel net, the height-width ratio, the space between piece pillar.
After research work, the following conclusion was got:
The loading capacities of the three different kinds of light-gauge steel walls are ranked as light-gauge steel frame-bracing system, light-gauge steel side-bracing system, light-gauge steel frame system. To some extent, steel net has contribution to improve lateral loading capacity of light-gauge steel walls with bracing; and the lateral loading capacity of light-gauge steel wall with bracing supplies the demand of the one with diaphragm. For the same kind of light-gauge steel walls with bracing, the smaller height-width ratio, the better lateral loading capacity of light-gauge steel walls with bracing; which one with the nearer space between piece pillar is better than the other; usually the plastic joints first appears at he bottom of pillar, connection point of the bracing and pillar, which is the most weak place in the wall.
This thesis will have certain reference significance for the theoretical study and the practical application of later light-gauge steel structure system.
传统轻钢龙骨体系的墙体一般由骨架和结构板共同受力,但对带支撑的钢骨架的应用和研究尚不够深入。本文针对不同支撑的轻钢龙骨墙体,对其抗侧力性能进行了有限元分析,主要工作如下：
提出三种不同支撑的轻钢龙骨墙体：轻钢龙骨刚架体系、轻钢龙骨刚架支撑体系、轻钢龙骨端支撑体系；采用有限元SAP2000中的Pushover静力非线性分析法,分析比较轻钢龙骨刚架体系、刚架支撑体系和端支撑体系的抗侧力性能；通过改变钢丝网、墙体的高宽比、片柱的间距等因素,研究带支撑的轻钢龙骨墙体抗侧力性能的影响因素,最后将一种带支撑的轻钢龙骨墙体与传统的带蒙皮的组合墙体的抗侧力性能进行比较。
通过本文所做的分析和研究工作,得到下列结论：
抗侧力性能由高到低排列为：轻钢龙骨刚架支撑体系,轻钢龙骨端支撑体系,轻钢龙骨刚架体系；极限承载力满足带蒙皮的组合墙体的抗侧力性能要求。钢丝网对于带支撑的轻钢龙骨墙体的抗侧力极限承载力有一定的贡献；对于同一种带支撑的轻钢龙骨墙体,墙体的高宽比越高,墙体的极限承载力越小；墙体片柱的间距越大,极限承载力越小；墙体首先在墙体柱底、支撑杆与片柱的连接处出现塑性铰,是结构的薄弱部位。
本文对于以后轻钢龙骨结构体系的理论研究和实际应用有一定的参考意义。
Light-gauge steel structure has good development prospect, because of light weight, good structural stability, seismic and wind performance, standardized production, recyclable materials, environmental protection and energy saving。
The traditional light-gauge steel wall supports force generally by steel frame and structural board, and the application and research on the wall with steel frame and bracing is not deep enough. The performance of the lateral loading capacity of light-gauge steel wall with bracing is studied in thesis by the finite element analysis. The main work as follows:
Three different kinds light-gauge steel wall with bracing were discussed: light-gauge steel frame system, light-gauge steel frame-bracing system and light-gauge steel side-bracing system. The Pushover static nonlinear analysis model of SAP2000 is used to analyze the performance of three light-gauge steel walls with bracing; and compares with lateral loading capacity of compound wall with diaphragm; and the influence factors are discussed such as steel net, the height-width ratio, the space between piece pillar.
After research work, the following conclusion was got:
The loading capacities of the three different kinds of light-gauge steel walls are ranked as light-gauge steel frame-bracing system, light-gauge steel side-bracing system, light-gauge steel frame system. To some extent, steel net has contribution to improve lateral loading capacity of light-gauge steel walls with bracing; and the lateral loading capacity of light-gauge steel wall with bracing supplies the demand of the one with diaphragm. For the same kind of light-gauge steel walls with bracing, the smaller height-width ratio, the better lateral loading capacity of light-gauge steel walls with bracing; which one with the nearer space between piece pillar is better than the other; usually the plastic joints first appears at he bottom of pillar, connection point of the bracing and pillar, which is the most weak place in the wall.
This thesis will have certain reference significance for the theoretical study and the practical application of later light-gauge steel structure system.
引文
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[34]阴亮.Web轻钢龙骨组合墙体抗侧力性能的影响因素[硕士论文].武汉理工大学,2006.
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[2]童悦仲,刘美霞.澳大利亚冷弯薄壁轻钢结构体系[J].住宅产业,2005,(06)：89-90.
[3]苑东晖,张大海.发展钢结构住宅的重要意义[J].辽宁建材,2004(4)1：1-2.
[4]柴超.我国建筑钢结构用钢材的现状与展望[J].钢结构,2001,(01)：15-18.
[5]黄真,李木谦.国外钢结构别墅住宅体系探讨[J].钢结构,2001,16(4)：1-3.
[6]李兴林,王来福.钢结构住宅建筑在我国的发展前景[J].工程建设与设计,2004,(8)：2-6.
[7]原冬霞,史三元,孙本森.C型钢体系住宅中的蒙皮效应分析[J].山西建筑,2005,16：8-9.
[8]夏冰清.轻钢龙骨复合承载体系结构性能研究.南京工业大学,2003
[9]王元清等.现代轻钢结构建筑及其在我国的应用[J].建筑结构学报,2002,23(1)：2-8
[10]张跃锋.低层居住建筑中的轻钢龙骨体系[J].钢结构,2001,(02)：1-4.
[11]丁成章编著.低层轻钢骨架住宅设计、制造与装配[M].北京：机械工业出版社
[12]贾松林.应用轻钢龙骨墙体的砼结构体系设计[J].广西城镇建设,2006(02)：29-32.
[13]贾松林,李敏,张鹏.介绍一种新型轻钢龙骨墙体[J].广西工学院学报,2000,(01)：64-67.
[14]阴亮.Web轻钢龙骨组合墙体抗侧力性能的影响因素[硕士论文].武汉理工大学,2008.
[15]石红雷.采用自攻螺钉连接的钢管桁架节点承载力及影响因素研究[硕士论文].武汉理工大学,2009.
[16]刘锋.轻钢龙骨与钢框架组合结构设计方法研究与应用[硕士论文].武汉理工大学,2008.
[17]Tarpy, T.S., Hauenstein, S.F. Effect of Construction Details on Shear Resistance of Steel-stud Wall Panels[R].Vanderbilt University. Nashville, TN, USA. A research project sponsored by American Iron and Steel Institute.1978. Project No.120:1 - 12.
[18]Tarpy, T.S. and Girard, J.D. Shear Resistance of Steel-stud Wall Panels [J].Sixth International Specialty Conference on Cold-formed Steel Structures. University of Missouri-Rolla, MO.1982:449-465.
[19]Jorg Lange, Bemd Naujoks. Behavior of cold - formed steel shear walls under horizontal and vertical loads, thin-walled Structures.December 2006
[20]REYNAUD S,KEHINDE O. Shear Resistance of Gypsum-Sheathed Light-Gauge Steel Stud Walls[J].Journal of Structural Engineering,1996,122(4):383-389.
[21]EMAD F G, ADRIAN M C, COLIN F D. Lateral Behavior of Plasterboard-Clad Residential Steel Frames[J].Journal of Structural Engineering,1999,125(1):32-39.
[22]Reynaud Serrette. Light Gauge Steel Shear Wall Tests[J]. Department of Civil Engine on. Santa Clara University, Santa Clara, CA.1994.
[23]Reynaud Serrette. G Hall, and J. Ngyen. Shear Wall Values for Light Gauge Steel Framing, Ameriean iron and Steel Institute, Washington, DC, January 1996.
[24]R. Serrette, G. Hall, and J. Ngyen. Additional Shear Wall Values for Light Gauge Steel Framing. American Iron and Steel Institute, Washington, DC, MarCh1997.
[25]Gad, E.F., Chandler, A.M., Duffield, C.F., Stark, G Lateral Behavior of Plasterboard-clad Residential Steel Frames [J]. Journal of Structural Engineering, ASCE, Vol.125, No.1.1999
[26]Gad, E.F., Duffield, C.F., Hutchinson, G.L., Mansell, D.S., Stark, G Lateral Performance of Cold-formed Steel-framed Domestic Structures [J]. Engineering Structures, Elsevier, Vol.21, No. 1.19-99
[27]Salenikovich, A.J., Dolan, J.D., Easterling, w. s. Racking Performance of Long Steel-frame Shear Walls [J]. In Proceedings of the 15th International Specialty Conference on Cold-formed Steel Structures. St. Louis, MO, USA.2000
[28]The City of Los Angeles-University of California (COLA-UCI) Report of A Testing Program of Light-framed Walls with Wood Sheathed Shear Panels [R]. Final Report to the City of Los Angeles Department of Building and Safety, Structural Engineers Association of Southern California. Irvine, CA, USA,2001.
[29]LEE Y K, THOMAS H M. Limiting Heights for Gypsum-Sheathed, Cold-Formed Steel Wall Studs [J]. Practice Periodical on Structural Design and Construction,2001,6(2):83-89.
[30]LIEW Y L, GAD E F, DUFFIELD C F. Development of Test Method for Determining Plasterboard Bracing Performance [J].Journal of Structural Engineering,2004,130(7):1108-1116.
[31]夏冰青.轻钢龙骨复合承载体系结构性能研究[硕士论文].南京工业大学,2003.
[32]胡海兵.轻钢龙骨墙体在水平荷载作用下的试验研究[硕士论文].武汉理工大学,2005.
[33]周超.新型轻钢龙骨体系墙体计算方法研究[硕士论文].武汉理工大学,2006.
[34]阴亮.Web轻钢龙骨组合墙体抗侧力性能的影响因素[硕士论文].武汉理工大学,2006.
[35]蔡江勇,刘志会,蒋沧如等.轻钢骨架-覆面结构板材组合墙体抗侧力性能的试验[J].工业建筑,2007.12：49-53
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