【作者】 林海瑛；

【导师】 秦荣；

【作者基本信息】 广西大学 ， 结构工程， 2006， 硕士

【摘要】 随着高层建筑的快速发展，双塔连体结构体系越来越多地应用在高层建筑当中，本文致力于双塔连体结构的研究，首先介绍了双塔连体结构发展及其优势；其次采用QR法对双塔连体结构进行分析，建立了双塔连体结构的新的计算格式；然后对双塔连体结构进行了弹性静力分析，并同传统的有限元软件的结果进行了比较，对双塔连体结构的位置对塔楼的影响进行了研究；最后采用QR法建立了基于弹塑性应变理论和双分量模型的双塔连体结构弹塑性分析模型，分别采用增量初应力迭代法和增量法进行求解，分析了双塔连体结构的弹塑性问题，并同基于流动法则的有限元法求解的结果进行比较。结果表明，QR法是分析双塔连体结构的经济有效的方法，该方法未知量少，精度高，计算简便，易于程序实现。弹塑性应变理论避开了流动法则的缺陷，是求解结构非线性问题的科学理论。本文采用C语言编制了相应的计算程序，并调制通过。本文不仅具有理论意义，而且有工程实用价值。更多还原

【Abstract】 As the rapid development of the high-rise buildings, the Double-Tower-Connected Structures (DTCS) system has been applied to the tall buildings more and more frequently. This paper is mainly concerned in the study of the DTCS. Firstly the development and the advantages of DTCS were introduced. Secondly the QR-method was adopted to establish a new kind of calculation mode for the elastic static analysis of this type of structure. And the result was compared to the one gotten from traditional finite element software to study the influence of the building’s connecting positions to the towers. Thirdly, to analyze the elasto-plastic problems of DTCS, the QR-method was adopted to establish the elasto-plastic analysis model of it based on the elasto-plastic strain theory and two-component model, and the initial stress increment iteration method and the increment iteration method were respectively adopted for the solving. The result was compared to the one of finite element method based on the flow rule. The analysis result showed that, with less unknown quantity, high precision, convenience of calculating and easiness for programming, the QR-method is an effective method for analyzing the DTCS. Avoided the disadvantages of the flow rule, the elasto-plastic strain theory is a scientific theory for solving the nonlinear problems of structures. All the computation programs in this paper were completed with C language and have been debugged更多还原