Research On The Mechanism Of Frame And Block In Energy-Saving Block&Invisible Multi-Ribbed Frame Composite Walls Under Lateral Load

With the development of society, the further reform and opening, housing industrydevelops fast, energy–saving block&invisible multi-ribbed structure is requestedhigh and high. Though energy–saving block&invisible multi-ribbed structure, as anew structural system, accords with the society development trend, and has broadprospects, there still remains a lot to be studied and perfected.Based on the previous research of our research group, this paper, through thecomparative analysis of energy-saving block&invisible multi-ribbed frame wallswith filled block and without, finished work as following:①Though a piece of the1/2-scaled model well of energy-saving block andinvisible multi-ribbed frame walls without filled block is investigated through pseudostatic test, this paper, analyzed the wall cracking process and the law of crackpropagation, and studied the wall’s hysteretic behavior, deformation, ductility, energydissipation, rigidity. The research suggests that the wall shows the more ideal failuremode—the shear and stress failure, and has better ductility and deformation capacity.But the hysteretic curve of this wall is not too plumpish, and shows some slippageeffect.②Through the test results of energy-saving block&invisible multi-ribbed framewalls without filled block were analyzed, this paper put forward qua-linear restoringforce model of energy-saving block&invisible multi-ribbed frame walls withoutfilled block on the basis of the wall’s bearing capacity, failure mode, rigidity anddeformation capacity, testing value and theory value is identical better.③On the basis of this test, this paper compared the test results with the previous’,and analyzed bearing capacity, failure regularity, seismic performance ofenergy-saving block&invisible multi-ribbed frame walls with filled block andwithout comparatively. The research suggests that the ductility and deformationcapacity of energy-saving block&invisible multi-ribbed frame walls with filledblock is better, the hysteretic curve is plumpish, and the effect of energy dissipationand disaster reduction is significant. ④Binding test, this paper studied the interaction mechanism of the frame andblock. The mutual constraint of the frame and filling block plays a supporting role inmechanical and seismic performance. The Contributions to lateral rigidity and shearbehavior of the wall were discussed. Through the means of combining experimentresearch and theoretical analysis, the paper analyzed the simplified mechanical modelfor the various stages of energy–saving block&invisible multi-ribbed wall withfilled block: During elastic stage, the wall was equaled to an elastic composite slab.During elastic-plastic stage, the wall was equaled to a rigid frame-obliquecompression bar model. During failure stage, the wall was equaled to a beam-hingedframe. The lateral rigidity for the various stages of the wall was theoretically treatedin this paper, testing value and theory value is identical better. Furthermore, the filledblock s’ contributions to lateral rigidity were verified by the comparative analysis ofenergy-saving block&invisible multi-ribbed frame walls with filled block andwithout.