Response Analysis And Reliability Research On Response Of Two Prefabricated Wall Structure Under Random Seismic Excitation

Along with our country "construction industrialization, housing industrialization process” accelerated, a batch of suitable for China’s national conditions and geographical characteristics of the new assembled monolithic concrete structure system arises at the historic moment. The ecological composite wall structure mainly adopts the construction scheme of integral assembly, composed of ecological composite wall prefabricated concrete slab and edge connection component and assembly cast and become, have good seismic performance in the structure characteristic and the use of different materials. The new precast concrete structure is based on the ecological composite wall structure height limit(18 layer) is put forward, with the construction of fast, reliable connection, energy dissipation and other advantages, the construction scheme of the whole assembly, by the precast concrete plate, cast-in-place edge constraint component and floor(cast or cast into laminated). In this paper, based on the previous study results, the establishment of two kinds of assembly type wall structure of macro element model; the random vibration response analysis of two kinds of assembly type wall structure and frame structure with special-shaped column structure; through increasing the input amplitude response power spectrum, the importance sampling method based on response spectrum analysis, dynamic reliability contrast and two kinds of assembly type wall structure and frame structure with special-shaped columns.In this paper, the main research contents and achievements include:1. This paper puts forward two kinds of assembly type wall structure of macro element model. The ecological composite wall structure, in the elastic stage, the ecological composite wall is equivalent to the mechanics of composite elastic platemodel, in the elastic-plastic stage, the ecological composite wall is equivalent to the equivalent brace model; the new precast concrete wall structure model, the model of assembled concrete wallboard is equivalent to the improvement of three vertical rod mechanics model. The results of experiment and numerical analysis shows that: the two kinds of structure of macro element model can meet the structural elastic-plastic calculation precision, and can be used for reliability analysis of two kinds of assembly type wall structure of the stochastic seismic response and dynamic.2. The mechanical model of two prefabricated wall structure were studied. For eco-composite wall structure, in the elastic stage, ecological composite wall structure is equivalent to the rigid frame- composite elastic plate mechanics model, elastic-plastic stage, the ecological composite wall structure is equivalent to the rigid frame- bracing equivalent mechanical model; prefabricated concrete structures for the new model of the wall, the new type of prefabricated concrete panels is equivalent to three vertical rod mechanics model, and the new prefabricated concrete wall bending moment, shear force performance composite pressure tests Pushover reaction calculations, test results and the calculated results agree well to meet the accuracy requirements, the three vertical bars the new model can be used to analyze the seismic behavior of precast concrete wall structure.3. By using the structure of the power spectral response for ideological importance sampling method, the power spectral density is increased by the reaction excitation amplitude is proposed based on the reaction of the power spectrum of the importance sampling method. Evenly modulated by non-stationary ground motion model yields a concrete structure is based on the calculation formula for the first time beyond the failure criterion of random kinetic reliability, then get three top displacement reliability,mutual comparison results show the power of new prefabricated concrete structures reliability is better than complex ecological wall structure, dynamic ecological composite wall structure superior reliability framework. Show on probabilistic sense,the new prefabricated concrete structure and properties of composite wall structure is superior to the ecological performance of the ecological composite wall structure is superior to the frame structure, two prefabricated structural properties similar to frame shear wall structure is safe.