1、 第4卷 第4期 空 间 结 构 1998年11月 f? Ksa刘锡良 白正仙(?v?300072)K1本文介绍了新型大跨空间结构张弦梁结构,并提出用线性及几何非线性混合单元有限元法分析张弦梁结构的方案,通过计算分析表明了本文方案的正确性及合理性,本文的工作为张弦梁结构的实际应用提供参考。1oM张弦梁结构 混合单元有限元分析 线性分析 几何非线性分析Ba f? (BeamStringStructure,e:BSS) a?#F7 (m1)b| a, V s , a ZL , bWBSS(m2)bf? 1 ,i;z, 8 ?, Pni/ 4, X, ? , ?Y A7nbLs I nq = sY,
2、 I n Y+ dLKES B, “ ) LZEsBSS V !91 pb Ls, ? F , r (m4j)T I;7S+ dLs H,5| L ! S by T/,M l,#L ! b+ dLs UL Ebn5, F ,9 HQbD1 ,# k E, p33.6kg/m2 PT/, T 9 S , |200kg, l 0.0001 H, Q l b9 , T/,MKv)M 2.7mm, t0.5%, , T/,f? M l, | S TB I n b“, # “ T/+ dLKs,s9 ,B9 |0.001kg,L p F ,? 3 = ; 9 |10kgb l 0.001 H,B Q l
3、 , BQ l bK,| 3? h B? , ? “ T/= Qb |,9 ,?C? = , 7Mbi O = #M9 ? p,+ dLs “ T/Qh T/QMLsTBb+ dLsTLsTnm7am8bm7 ( s? 1“m8s ( s? 1“m7am8 A,LdLs? = QYl, 9 l ? = Q H,Ls 1 pb195.MsD14#M5,N BSS bWBSS /L#dLs H,a,b,c M f ,nV4bV4 V A, BSS_,# bWBSS, T ,7 F ,8 bWBSS vbs l9 ,F F v,#Ml, zM,1qja # 1“1B)bV4M f (kg/m2)a(
4、mm)b(mm)c(mm)Dx Dy Dz Dx Dy Dz Dx Dy Dz BSS 10 0.39 - 637.7 - 1.02 0.40 - 264.5 - 0.97 0.78 0 0bWBSSL B20 0.52 - 0.40 - 1.16 0.5 - 0.32 - 1.34 1.04 0 0bWBSSL =20 0.18 - 0.21 - 0.46 0.17 - 0.17 - 0.46 0.35 0 0bWBSSdL B 0.81 - 0.87 - 2.46 0.86 - 0.51 - 2.04 1.62 0 020+ 1.36 - 1.30 - 3.70 1.38 - 0.83 -
5、 3.40 2.72 0 020 0.55 - 0.43 - 1.24 0.52 - 0.32 - 1.36 1.10 0 0bWBSSdL = 0.81 - 0.87 - 2.46 0.86 - 0.51 - 2.04 1.62 0 020+ 0.99 - 1.10 - 2.95 1.04 - 0.68 - 2.52 1.98 0 020 0.18 - 0.23 - 0.49 0.18 - 0.17 - 0.48 0.36 0 0as V/ :(1)f? ? F # z F bW8“, s ,q , # ZLb(2)4|f? , #? ? s T ,sZ b4CYKsf? yp, y g ?
6、,Lb(3)f? s Vs ,B + dLKE,9 T/Q;= LKE9 T/Q;B=TF, L= = QMQb(4) f? _,A !_b20 ID1M. Saitoh, et al. Study on MechanicalCharacteristicsof a Light-weight Complex Structure Composedof a Membrane and a Beam String Structure. Spatial, Lattice and Tension Structures, Proc. of IASS-ASCE Int. Symp., 1994, 632i641
7、.2S. Kato, et al. Active Controlof Axial ForcesinBeamString Space Frames. Spatial, Lattice and Ten-sion Structures, Proc. of IASS-ASCE Int. Symp., 1994, 664i673.3aa. Oa +. bW “,s:v,1994.4p. T ?s. bW,1997(4).FINITE ELEMENT ANALYSISOF BEAM STRINGSTRUCTURELiuXiliangBaiZhengxian(TianjinUniversity)Abstra
8、ctBeam String Structure(BSS), which is a new kindof large-span space structure, is introduced inthis paper. An analysis method for this structure, using linear and nonlinear finite element method of com-posite elements, is proposed. The correction and rationality of the proposition is proved by calc
9、ulation andstudy in the paper. The paper will contribute to practice of BSS.(上接第63页)APPLICATION OF SPATIAL STRUCTURE ONAIRCRAFE MAINTENANCE DOCKARNOLD H Yu(Taikoo(Xiamen) Aircraft Engineering Co Ltd)Ding Yunsun(High Light Consultant Collaborators)AbstractThis is a brief introduction of Spatial structure using on TAECOns aircraft maintenance dock.Here we also give a summary of the aircraft maintenance dock function, the maintenance dock spatial struc-ture and the joints.21
