| Part at the bottom of the box the ecological composite wall structure is the frame-shear wall structure (can be used part of the ecological composite wall or landing shearwall and frame combination), upper with new structure form of the ecologicalcomposite wall structure. Due to the upper part of the ecological composite wallstructure weight is lighter, and the ecological bearing capacity and stiffness ofcomposite wall may be adjusted according to different design conditions, so it is easy torealize the large space building structure at the bottom of the vertical stiffness ofcoordination, and effectively reduce the earthquake damage, improve the structure ofthe aseismic capacity. Reasonable failure mode can not only through a part at thebottom of the box structure play a greater ductility to consume the earthquake energy, atthe same time makes the components in the upper wall (block, rib and frame) under theseismic action, in turn, give play to the role of primary and secondary, implementationstructure of multichannel seismic line. Therefore, this paper box wall beam test, thediscussion part of the ecological composite wall structure supported on three types offailure mode, and by using the nonlinear numerical analysis software supported on theinfluence factors of the ecological composite wall structure failure mode analyzed theextension, is supported on the ecological composite wall structure provides thereference for the design of reasonable failure mode. This paper studies the main contentis as follows:1．Based on four common discovers two cross box is the basis of the ecologicalcomposite wall beam structure test, analysis the failure pattern and the correspondingcharacteristics of each specimen, and through the steel strain value quantitative analysisshows that the plastic hinge parts, finally put forward the ecological composite wall structure supported on three types of damage.(1) damage occurred in box a conversionlayer，(2) the box up and down the conversion layer structure damage is relativelyuniform,(3) damage occurred in box a conversion layer upper structure or transitionlayer.2．With the consideration of the characteristics of part of the ecological compositewall structure supported on nonlinear numerical analysis software SAP2000is adoptedto establish the frame of the ecological composite wall beam specimen frame-equivalentbrace elastic-plastic mechanics model, and the ecological composite wall with fourcross two span box beam specimens were compared. Experimental research andnumerical analysis show that: In the development of plastic hinge and test specimentallies with the destroy the order of each component in elastic-plastic stage equivalentbrace model can more accurately simulate the stress of the part of the ecologicalcomposite wall structure supported on.3．Based on validation of rigid frame-equivalent brace model, establish a series offloor stiffness ratio and quantity change part of the ecological composite wall structuresupported on nonlinear numerical analysis model, proposed rigidity ratio, number offloors on the part of the box the influence law of the ecological composite wall structurefailure mode. Numerical analysis shows that:(1) Stiffness ratio greater than1.5, theecological composite wall structure supported on prone to soft on just the box under alayer failure mode; Stiffness ratio is less than1.0, the ecological composite wallstructure supported on weak layer on layer (layer transition) might happen compositewallboard failure mode; Stiffness ratio between1.5~1.0, supported on the ecologicalcomposite wall structure transformation layer and structure damage relatively uniform；(2) Transformation layer lower stiffness weak, by increasing the transformation layernumber of floors upper structure is good for the frame with weak layer. |
