Research On The Effect Of The Basement With Non-peripheral Shear Wall On The Structural Embedded Fixing

High-rise building structural embedded fixing is an important assumption instructure computational analysis. The selection of embedded fixing has the directbearing on the analysis correctness and the calculation accuracy of structure model.Moreover, the selection of embedded fixing of high-rise structure with basement is acommon problem in structural design efforts. In current research, there is lack ofresearch on the effect of the basement with non-peripheral shear wall on the structuralembedded fixing. The consequences of that is lack of reference or errors occurredfrequently in structure design. Based on the above, through theoretical investigation andsamples analysis, the relevant problems are researched in this article by finite elementsoftware. The following are main contents and achievements:(1) Through summaries of current research status, it’s summed up that researchproduction and specification by building code about structural embedded fixing at thepresent stage, as well as the shortage or loopholes. The support is provided forengineering designers and researchers to deepen more analysis.(2) Through in-depth dissecting three different definitions lateral stiffness ratio--namely the equivalent lateral stiffness ratio, the ratio of story shear and inter-storydisplacements (drifts) and the shear bending stiffness ratio, their concepts, uses, meritsand demerits, similarities and differences are clarified. The best choice is theequivalent lateral stiffness ratio when structural embedded fixing will be judged. Andthe conclusion is made by verifying and contrasting two sample models.(3) To verify the rationality of limit of lateral stiffness ratio, finite element softwareETABS is applied. Two sets of structure models are built. The limit of lateral stiffnessratio, which of ordinary frame structure and ordinary shear wall structure, is analyzed.As the criterion of the basement’s top slap being structural embedded fixing, the lateral stiffness ratio2has clear rationality. In the research, the reference model used issuperior to what predecessors used. Consequently, this analysis is more reliable. In themeantime, the theory which is based on fixing horizontal displacement method cansatisfy the needs of engineering precision.(4) Through exerting soil spring on the basement’s peripheral shear wall, the soilconstraint to structure is simulated. When the lateral stiffness ratio of structure itselfsatisfies the needs, there are modest effects to structural overall performance from soilconstraint, but there is useful effect to basement’s stress and deformation performance.When it doesn’t satisfy the needs, there are obvious effects to structuraloverall performance and local floors of basement from soil constraint. Meanwhile, theeffect of soil constraint to structural performance will vary with structure height or theratio of height above&below the baseline.(5) By finite element software Midas Building, two non-peripheral shear wallbasement structure are analyzed by elastic response spectrum and elastic-plastictime-history. The effect to judging embedded fixing is researched when the basementhas adjacent side shear wall or opposite side shear wall. The article points out that it’snot suitable to put the embedded fixing on the basement’s top slap under thecircumstance of being non-peripheral shear wall. The embedded fixing should be moveddown to the foundation. Otherwise, the lateral stiffness is arranged uniformly bycoordinating architectural arrangement to change the position of shear wall.