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Study On The Multiple Seismic Line Of Middle-high Ecological Composite Wall Hybrid Structure

Posted on:2015-04-24Degree:MasterType:Thesis
Country:ChinaCandidate:M ZhangFull Text:PDF
GTID:2272330452467962Subject:Disaster Prevention
Abstract/Summary:PDF Full Text Request
As a new kind of structure system, middle-high ecological hybrid composite wallstructure is ecological, environmental, energy-saving, and has the advantage of energydissipation and vibration reduction. Besides, it can be built rapidly. The system is mainlycomposed of prefabricated concrete vertical constraint, hidden beam of components andassembly cast-in-place floor slab. The structure owns unique structural characteristics. Theuse of a variety of components, materials and nested makes the structure system containsboth main struture and secondary structure, and has multiple seismic lines. In this paper, onthe basis of experimental study, the finite element software is used to analyze the influencefactors of each line of defense, and the multiple seismic lines seismic mechanism of themiddle-high ecological hybrid composite wall is discussed to provide some support for laterengineeringapplication.This article’s main researchcontent is as follows:1. Each seismic line of middle-high ecological hybrid composite wall structure indifferent scale is studied. The test can be divided into tick material mechanical performancetest, wallboard sash unit test, and ecological compsite wall test. The results indicate that theinfilled block has a good energy dissipation capacity, the framework formed by verticalconstraint component and hidden beam is capable of limiting the ecological composite wallpanel. Under horizontal load, block, sash and frame can interact, and bears loads together.Theyplaya role in turn in elastic stage, elastic-plastic stage and failure stage of the test. Thismakes themiddle-high ecological compositewall endup withmultipleseismiclines-"block-sash-vertical constraint component".2. Combined with the test results, the finite element software ABAQUS is used in the numerical analysis of the factors of various seismic lines. Ecological composite wall undervarious influence factors is compared and analyzed. The effect of block strength for the firstdefense line, the size of the rib beam and frame column, the reinforcement of rib beam andrib column for the second defense line, the reinforcement of vertical constraint componentfor the third defense line. According to numerical analysis the influence rules of differentfactorsis summarizedwhichprovides theorysupport forthelater engineeringpractice.3. On the basis of the above research results, by the use of the dual structure principle,both main structure and secondary structure in middle-high ecological composite wall isanalyzed. The decomposition mechanism of the middle-high ecological composite wallhybrid structure is gotten. With the use of damage-reduction theory in middle-highecological composite wall hybrid structure, the block, composite wall board dissipatesenergy as damage-reduction parts, the damage-reduction seismic design method isobtained. Finally, with the combination of the performance levels of the structure and threeseismic lines, the corresponding suggestive index value of three performance levels withdifferent performance targets is given. Finally, an example is given to state that the seismicdesign method of the middle-high ecological composite wall hybrid structure on the basis otthree seismic lines could satisfy the personalized requirements of the performance goalsdesignin structure.
Keywords/Search Tags:Middle-high ecological composite wall hybrid structure, Multiple seismicline, Failure law, Seismic mechanism, performance targets
PDF Full Text Request
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