New Algorithm And Software Implementation Of Partial Overturning Torque Of Frame-shear Structure Frame

China is in the world's two major seismic belts,and is also squeezed by a number of Continental and Ocean plate plates such as the Pacific Plate,the Indian Ocean Plate and the Philippine Sea.The earthquake activity is very frequent,and the earthquake situation facing China is very severe.Frame-shear wall structure is composed of frame and shear wall structure,which have completely different mechanical characteristics.Under horizontal load,frame and shear wall work together through coordinated deformation of floor.The frame-shear structure can not only satisfy the users' requirements for space,but also the lateral stiffness of buildings.It can give full play to the advantages of frame structure and shear wall structure.This advantage has been verified in Wenchuan earthquake and makes the frame structure bear the horizontal force during earthquakes.More and more shear structures are appearing in our life.In view of the fact that the deformation and stress characteristics of frame-shear wall structure are different from those of frame structure and shear wall structure,the design method of frame-shear wall structure should be determined according to the ratio of the overturning moment of the frame part to the total seismic overturning moment of the structure under the prescribed horizontal force.The overturning moment of the frame part has an important influence on the seismic design of the frame-shear wall structure.Many building structure calculation software have given corresponding solutions.With the higher requirement of the new code for seismic performance of frame-shear wall structure,higher accuracy is required for calculating the ratio of overturning moment to total overturning moment of frame part.The existing calculation methods can not meet the need,and a new algorithm is urgently needed to solve the problem of the current structural calculation software.Firstly,this paper compares and analyses two commonly used methods for calculating overturning moment: anti-gauge method and axial force method,analyses and compares their calculating principles and applicable conditions,finds out their respective defects,and focuses on the analysis of the axial force method previously adopted by YJK.Then,it analyses a newly proposed force couple method,analyses its principle and finds its advantages,and applies it on the basis of the original axial force method.The principle of couple method is optimized to form a new algorithm-improved axial force method to improve the accuracy of calculation results.Using VS2013 platform and C++ language,the program code is compiled,the total overturning moment of frame-shear structure and the overturning moment of frame part are calculated,the percentage of total overturning moment of frame part is calculated,the program implementation of the new algorithm is completed,and the calculation results of the new algorithm are output.Finally,in order to verify the feasibility and accuracy of the new algorithm,an exampleis used to compare the overturning moment results of various algorithms to verify the accuracy.The result proves that the new algorithm proposed in this thesis solves the problem of the moment of the axial force method while preserving the advantages of the original axial force method,and improves the accuracy of the overturning moment result of the YJK software in the calculation frame..Therefore,the new algorithm proposed in this paper can provide a better auxiliary function for the seismic design of the frame-shear wall structure.