| As a new structural system, MRS(multi-ribbed slab structure) has achieved staggered fruit in multi-story buildings study and application. But the system's theoretical investigation and application study for moderate high-rise building is being nothingness yet. To establish the system computational theory and design method, the thesis is devoted to detailed studying on main member's atress characteristic, failure mechanism, carrying capacity in high-rise building and whole structure's service behavior, deformation characteristic, displacement-based seismic design method. Such work has been done as follows:Based on previous test result of multi-ribbed slab with frame enhancement, the three classic failure mode is proposed. Linking with the different design stage involved in actual codes, the corresponding analysis model is set up. By means of experimental investigation and theoretical analysis, a equivalent flexural stiffness model to origin slab is set up to meet tall building's design require and the structure's design procedure is stipulated to three phases-internal force analysis, carrying capacity checkout and anti-collapse design,.Based on the numerical simulation and accuracy analysis to previous slab's test with the ANSYS program, the study of composite wall, with various detail design under potential load action respectively or jointly is carried on and the wall's atress behavior and failure mode is obtained, also the influence to wall's stiffness and bearing capacity by kinds of factors, including wall's shear span ratio, member's section, bar arrangement, etc.Based on the hammer blow test and stiffness test, a 1/3 scale ten-bay model's modality parameter and elastic deformation characteristic is analyzed. The pseudo-dynamic test gives the model's earthquake response, failure characteristic and special seismic property, unveil the structure's failure procedure of "low density setin block's break- slab rib's break- end post's concrete craze-end post's steel bar yielding", providing full and accurate experimental information to establish the seismic design method.The slab's crack discrimination condition is prescribe. The extreme shear strength bearing moment, shear and pressure synchronously shows the bearing capacity components and change in slab's failure process. Based on the experimental investigation and numerical analysis, the slab's shear and bending resistant expression is proposed and a representative wall's reliability index under small earthquake is figured out. Sensitivity of every factors affecting shear strength is evaluated.The elastic stiffness and deformation of MRS and shear wall structure is compared. The MRSthree extreme failure statuses corresponding with distinct performance levels-natural service reparable damage, no collapse ruin are proposed.. The structure displacement angle limit in elastic or elasto-plastic state is presented respectively. With static elasto-plastic analysis method, the MRS behavior different from shear wall structure in intense earthquake is obtained. The basic way employing displacement-based design method for the structure and points for attention in practical project design are indicated.Based on the experimental and theoretical achievement and compared with the general RC structure systems, moderate high-rise MRS conceptual design principle, seismic design method and section requirement is stipulated. In a 12-storey building's project design, the high-rise MRS stiffness, seismic response and carrying capacity is obtained. Detail design of joint to strengthen structure's wholeness and assure modeling rationality is required.The originality of the thesis lies in:(1) Establishment of analysis model for different design phases of multi-ribbed slabIn accordance with the slab's grading and multimode failure mode, by felicitously assumption and affecting factor's evaluation, the computational model corresponding to codes' requirement is proposed. The equivalent concrete wall model with same flexural stiflhess to prototype comp...
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