應(yīng)力雜交元在剪力墻分析中的應(yīng)用研究
武云鵬，郭峰，王委，苗啟松
- 摘 要
-
（北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045）［摘要］剪力墻是建筑結(jié)構(gòu)中的重要受力構(gòu)件，其計(jì)算精度對(duì)分析設(shè)計(jì)結(jié)果有著極其重要的影響。目前，既考慮平面內(nèi)剛度又考慮平面外剛度的殼元已成為剪力墻的主流分析算法，但這些殼元仍以位移元為主導(dǎo)，其應(yīng)力計(jì)算精度相對(duì)較低。對(duì)剪力墻的分析采用了一種新型殼元，該殼元的平面內(nèi)膜元部分采用應(yīng)力雜交元實(shí)現(xiàn)，即將單元內(nèi)部應(yīng)力和邊界位移同時(shí)作為基本未知量進(jìn)行求解。數(shù)值試驗(yàn)表明，該單元在多數(shù)情況下可顯著提高剪力墻的應(yīng)力計(jì)算精度，從而改善相關(guān)構(gòu)件的工程設(shè)計(jì)質(zhì)量。［關(guān)鍵詞］剪力墻; 殼元; 應(yīng)力雜交元; 有限單元法中圖分類(lèi)號(hào)：TU311.41，TU375 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2014)20-0064-04Research on analysis of shear wall using hybrid stress elementWu Yunpeng, Guo Feng, Wang Wei, Miao Qisong(Beijing Institute of Architectural Design, Beijing 100045, China)Abstract: Shear wall is a very important mechanical member in building structure and the calculation accuracy of shear wall affects a lot on the analysis and design results. The shell element considering both in-plane and out-plane stiffness is currently popular analysis algorithm of shear wall. However, the shell element based on displacement has low stress accuracy. A new type of shell element was proposed in the analysis of shear wall. The in-plane stiffness is realized by hybrid stress element, i.e. the stress and boundary displacement of the element were both basic unknowns. Numerical experiment shows that the stress accuracy of shear wall increases significantly in most cases with the new type of shell element, which improves the engineering design quality.Keywords:shear wall; shell element; hybrid stress element; finite element method作者簡(jiǎn)介：武云鵬，博士，高級(jí)工程師，Email：wuyunpeng@tsinghua.org.cn。參考文獻(xiàn)［1］ALLMAN D J. A compatible triangular element including vertex rotations for plane elasticity analysis［J］. Computers & Structures, 1984, 19(1-2): 1-8.［2］MACNEAL R H, HARDER R L. A refined fournoded membrane element with rotational degrees of freedom［J］. Computers & Structures, 1988, 28(1): 75-84.［3］LONG Y Q, XU Y. Generalized conforming quadrilateral membrane element with vertex rigid rotational freedom［J］. Computers & Structures, 1994, 52(4): 749-755.［4］LONG Y Q, XU Y. Generalized conforming triangular membrane element with vertex rigid rotational freedom［J］. Finite Elements in Analysis and Design, 1994, 17(4): 259-271.［5］GEYER S, GREONWOLD A A. Two hybrid stress membrane finite element families with drilling rotations［J］. International Journal for Numerical Methods in Engineering, 2002, 53(3): 583-601.［6］IRWAN KATILI. A new discrete Kirchhoff-mindlin element based on mindlin-reissner plate theory and assumed shear strain fields-part Ⅰ: an extended DKT element for thick-plate bending analysis［J］. International Journal for Numerical Methods in Engineering, 1993,［7］IRWAN KATILI. A new discrete Kirchhoff-mindlin element based on mindlin-reissner plate theory and assumed shear strain fields-part Ⅱ: an extended DKQ element for thick-plate bending analysis［J］. International Journal for Numerical Methods in Engineering, 1993, 36(11):［8］岑松，龍志飛. 對(duì)轉(zhuǎn)角場(chǎng)和剪應(yīng)變場(chǎng)進(jìn)行合理插值的厚板元［J］.工程力學(xué)，1998，15(3)：［9］岑松，龍志飛，龍馭球.對(duì)轉(zhuǎn)角場(chǎng)和剪應(yīng)變場(chǎng)進(jìn)行合理插值的厚薄板通用四邊形元［J］.工程力學(xué)，1999，16(4)：1-15.［10］岑松，周明玨，傅向榮，等.一種對(duì)網(wǎng)格凹凸畸變不敏感的高應(yīng)力精度4節(jié)點(diǎn)帶旋轉(zhuǎn)
- 下載地址
-
你還沒(méi)注冊(cè)？或者沒(méi)有登錄？這篇論文要求至少是本站的注冊(cè)會(huì)員才能閱讀！
如果你還沒(méi)注冊(cè)，請(qǐng)趕緊點(diǎn)此注冊(cè)吧！
如果你已經(jīng)注冊(cè)但還沒(méi)登錄，請(qǐng)趕緊點(diǎn)此登錄吧！
