2015/10/25 Reinforced Concrete Shear Wall 5.2Structural Analysis .Characteristic 5.2.1 structural analysis the wall pe,but weak at .3-Dimer selected as calculating sketch; .In some cases,the structure can be considered as .The lmtation of buildings'height are increased; wall frame system if the opening is large nough Arrangement of shear walls are much more sensitive to but the influence of rigidoe of itsjonsshould buldng'storsionn plan; be taken into account Main disadvantage:space limited Simed Cladon of ne s光ae&wwh调hoae黑8opg .Calculation model-looks like cantilever beam Out-of-plane forceand deformaion arenot ▣胆 single wall A.=YA 0 rae8orwrialamagyr =1-1.25√A1A 本课件版权归作者所有，仅供个人学习使用，请勿转载。 2015/10/25 2 Reinforced Concrete Shear Wall  Characteristic  Great stiffness within the wall plane, but weak at out-of￾plane;  Both the lateral loads and vertical loads are resisted by the shear walls ;  The limitation of buildings’ height are increased;  Arrangement of shear walls are much more sensitive to building’s torsion in plan;  Main disadvantage：space limited 5.2 Structural Analysis 5.2.1 structural analysis  3-Dimensional spatial model is selected as calculating sketch;  In some cases, the structure can be considered as wall frame system if the opening is large enough, but the influence of rigid zone of its joints should be taken into account; 5.2.2 Simplified Calculation of single wall Methodology： similar to the analysis of cantilever Beam  Calculation model－ looks like cantilever beam  Calculation assumption：  Single wall, overall height;  Fixed support at the bottom;  Lateral loads result both flexural deformation and shear deformation;  Out-of-plane force and deformation are not considered.  Single wall & Wall with small openings structures should be revised by using the coefficient of openings. 倒三角形分布荷载 均布荷载 顶部集中荷载 整体墙 Inverted triangular distributed load Uniformly distributed load Concentrated load at the top of a structure Integral Displacement of single wall —— non-uniform coefficient of shear, for rectangular section: ＝1.2 G=0.42E, H—— height of the wall V0 —— Base shear force. . ( ) ( ) ( ) 3 0 w 2 w w 3 0 w 2 w w 3 0 w 2 w w 11 V H 3 64 EI u 1 60 EI H GA 1 V H 4 EI u 1 8 EI H GA 1 V H 3 EI u 1 3 EI H GA          Under Inverted triangular distributed load Under Uniformly distributed load ,m Under Concentrated load at the top of the structure 倒三角形分布荷载 均布荷载 顶部集中荷载 整体墙 5.2.2 Simplified Calculation of single wall Aw —— equivalent cross-sectional area of the wall; Aop—— area of openings; Af —— gross vertical area of the wall; 0 —— coefficient of the openings; Iwi —— equivalent cross-sectional moment of inertia of the i segment along the vertical; hi ——height of the ith segment 。 . / w 0 0 op f n wi i i 1 w n i i 1 A A 1 1 25 A A I h I h           本课件版权归作者所有，仅供个人学习使用，请勿转载