Study On The Mechanical Mechanism Of Eccentric Joints In Reinforced Concrete Beam-wall Plane

With the development of tall buildings, frame-shear wall structure system and frame-core wall structure system has been widely used, out of consideration for the use of building functional and spatial form, there will be a thin wall beam width of the beam- wall plane eccentric connection node. For these nodes, the results of the current study can not meet the actual needs.Based on the finite element nodes parametric analysis, the study of the parameters for the joint of effect size, extending into the relationship between the length of the minimum values of the respective parameters, calculation of the maximum eccentricity and wall thickness ratio; and the above conclusions, study the space truss model of the node and obtain the calculation method of the node. The resulting conclusions:1) The length and tall of wall changes do not substantially alter the stress state of the node. Change the length of the beam extends into a cross-sectional stress distribution will change, but little effect on the beam end displacement. Beam and high eccentricity ratio of wall thickness change will not only change the beam end displacement, will have a greater impact on the distribution of node stress.2) The minimum value of the length extends can be ignored the effect of the length and height of the wall. The minimum value of the length extends into the ratio of eccentricity and wall thickness and the high of beam.3) Because the ratio of eccentricity and wall thickness greater impact on the force node, so with the node design, we need control the ratio of eccentricity and wall thickness by calculating.4) For the mechanical characteristics of the nodes, explore the Strut-and-Tie design method of the node.5) design method of the node advice.