Shenyang Sunshine 100 Complex Project Of The Main Structure Of The Elastic-Plastic Analysis

Shenyang sunshine 100 commercial complex is located in shenyang I YangGuang Road,is a large-scale integrated fashion business center,including children’s amusement park,cinema,food court and old cultural center,business functions,meet the needs of all ages.Whenever the holiday comes,gathered a large number of customers.In order to satisfy the security requirement of the synthesis,this paper analyzes the structural seismic performance of whole and study its stability.Code for seismic design of building design method in today’s academia mainly two stages"" three level,in the structure under the action of minor earthquakes on the bearing capacity calculation,standardized rules and strong earthquakes in under the action of macroscopic control performance,in order to meet their demands,we through correspond to conceptual design of internal force adjustment amplifier and seismic construction measures.Especially for shopping malls and large and medium-sized comprehensive business center,stability and safety of his structure is required to ensure that collapsed due to seismic action is also should avoid and take measures.Under strong earthquakes should carry on the calculation of elastic-plastic deformation is the purpose of the study,this paper mainly interlayer displacement Angle,ensure the structure to flame.Under seismic action,the structures of plastic hinge,and should find its position and order,and understand his reason;The weak layer position to judge;In view of the problems arising from the structure,the structure of the corresponding measures should be taken to strengthen and adjust.Current seismic fortification are divided into the following goals:(1)the first level:the more severe earthquake comes,structure affected,component in flexible working state,the whole structure would not be damaged;(2)the second level:when is affected by the earthquake is the same as the local earthquake intensity,the working state of the structure change,the state of elastic-plastic,can damage,but in general after repair,can still be used;(3)the third level:the rarely met earthquake comes,structure affected,component of elastic-plastic deformation is bigger,although badly damaged,but does not happen collapse or life-threatening.Through the above-mentioned fortification goal,design methods used in the seismic design for the two stage method.Design,in the first phase of the structure with elastic method is analyzed,and regard it as the elastic system,calculation of the structure of the earthquake effect,the choice of the ground motion parameter for the first level,to meet the first level and second level targets,respectively in small earthquakes are not bad,repairable,for calculating the bearing capacity of its components,also deal with its structural deformation on the overall check.The second stage of the design to meet the design requirements of the third level,for the concept design and anti-seismic construction measures,some unconventional special construction,in order to meet its inside certain limits does not collapse,necessary measures should be taken,at the same time necessary to cope with the weak layer of elastoplastic deformation calculation,and control the interlayer displacement Angle to meet the norms.Tong long cases should be tested for the calculation of the project is generally highly larger high-rise building or complex high-rise buildings.In this paper,using SATWE procedure modeling,using EPDA&PUSH program,can analyze the structure of the state.Structure model is established by using SATWE procedure is in accordance with the actual size,EPDA&PUSH analysis model,the beams and floor and shear wall rod were used respectively to yuan,and wall thin-walled shell element simulation simulation,on the floor plane model is adopted by the infinite just,out-of-plane mode is adopted by the stiffness is zero.This article through to "shenyang sunshine 100 complex project the main structure of elastoplastic analysis,the following conclusions:1.In the structure design,its structure form,is the most key arrangement,and at the same time how to decorate a shear wall,the selection of its size,determine the correct beam section size,as the change of height,the value of concrete strength grade,etc.,through a discussion and analysis on the above parameters,can only be determined.Finally the conclusion is summarized,at the time of structural layout,should satisfy is uniform structure,the principle of layout is symmetrical,shear wall is the key to the layout and through the perfect arrangement,can have a good adjustment effect in structure;Because there is stiffness mutation,in order to avoid the stress concentration,in the structure layout,as the change of height should be adjusted;Even the beam stiffness adjustment is particularly important,able to bear the shear bear,can’t afford to shear should give shear wall.In the concrete strength can be adjusted in the rigidity of the ideal effect.2.Through the analysis of SATWE program can obtain the following results,the rigidity of the structure of the two directions is more available to>Y to X,to the X and Y to approximate stiffness,analysis can determine structure layout form is more reasonable.3.The Pushover analysis method,the displacement of the vertices delta up<-256 mm/theta p h = 460 mm,so the vertex displacement satisfies the requirement of elastoplastic limit;4.The code for seismic design of buildings GB50011-2011 clause 5.5.5 elastoplastic interlayer displacement Angle limit of reinforced concrete structures[theta p]= 1/100,maximum elastic interlayer displacement Angle of this project is 1/295,to meet the requirements of the "big but not";5.Through the observation on the rod end plastic hinge in the loading process,it can be seen that the sixth floor of transformation column wall cracks,the earliest and then around the transformation of the upper column and wall cracks occur,so as to determine the layer is relatively weak,and be able to accurately judge the yield under strong earthquakes sequence,in the design of construction drawing,shall be strengthened,to ensure the stability of the whole floor;6.The structural seismic performance design,performance goal setting for D,that is to say,in the earthquake,the seismic performance of structure to meet 4 level,satisfy the performance level 5 under strong earthquakes,finally can get a conclusion that this project meet the requirements of specification,which meet the D performance goals.