Analysis On Compression-bending Capacity Of Now Build Stiffening Ribs Ecological Composite Wall

The now build stiffening ribs ecological composite wall is derived a new wall fromfabricated ecological composite wall by changing the Structure construction andconstruction technology, which is in order to solve construction equipment lack and costrelatively high of fabricated ecological composite wall in remote areas, and is thefabricated ecological composite-wall structure’s last and develop. It is made up withcomposite masonry walls which contained reinforced concrete to strengthen ribbedinside and invisible framework. This new wall has fabricated ecological composite walladjust measures to local conditions, energy conservation, environmental protection, andmany other advantages, and again play the scene masonry wall the advantages ofconvenient construction and low cost. As a new wall, the study of now build stiffeningribs ecological composite wall has just started. this paper, based on experimental studyand theoretical analysis of the research group at the early stage, through the finiteelement numerical analysis, study the failure process and failure pattern of now buildstiffening ribs ecological composite wall under bending load, and put forward theformula which is the wall bending bearing capacity of normal section through analyzingthe wall limit state under bending load. The main research contents are summarized asfollows:1． On the basis of the preliminary research, this paper study the failurecharacteristic of the wall under low reversed cyclic load, and verified the plain sectionassumption of the now build stiffening ribs ecological composite wall the average strainof normal section; According to the plan section assumption，this paper analyze the wallbending bearing capacity limit state, and then get the simplified calculation model of the wall normal section bending bearing capacity.2．According to the characteristics of the now build stiffening ribs ecologicalcomposite wall, a nonlinear finite element calculation model is established andcompared with previous test results to verify the accuracy and reliability of the finiteelement model; and using the verified model analyze the destruction characteristics ofthe wall under bending load; And based on this model, a series of finite element analysismodel with affecting wall destruction mode single factor change are built to get themain factors influencing the wall bending failure pattern, and it is the wall body framecolumn section height, frame column reinforcement ratio and axial compression ratio ofwall.3．Combined with several bending bearing capacity calculation model of theresearch Group prior fabricated ecological composite wall and the practical calculatingformula, this paper analyze the limit state of now build stiffening ribs ecologicalcomposite wall under the action of eccentric compression; On the basis of the wallsimplified calculation model under bending condition to establish the practicalcalculation formula of normal section bending bearing capacity of now build stiffeningribs ecological composite wall; By comparing the result of the calculation formula tofinite element calculation results, and show that the calculation formula is feasible inthis paper, it provides a certain basis for the engineering design of composite wallstructure.