现浇混凝土夹心保温墙，在满足承重能力的情况下，同时兼具保温效果。本文提出的夹心保温墙由三部分组成，内叶墙、中间保温层以及外叶墙，在中间的保温板处开洞处理，在内外叶墙之间使用微型方钢管混凝土短柱做连接件。整个內外叶墙以及连接件形成一个整体结构，使墙体更好的协同变形、共同受力。 论文对采用新型连接件的夹心保温墙进行了力学性能分析，应用ABAQUS有限元软件对高3000mm，宽1000mm的夹心墙进行了模拟分析，主要建立了三种受力状态下的分析模型：平面内竖向与水平共同受力模型，平面外作用模型以及剪切作用下的模型。通过对几种荷载作用下的受力性能分析，更加全面的了解了新型夹心墙的受力特点。在分析三种受力状态下的模型之前，首先进行了模型合理性的验证，通过与参考试件的对比分析，墙体的极限承载力与破坏形态同试验结果较为接近。在上述模型基础上，建立了平面内受力的BWQ1、BWQ2模型，根据有限元分析得到的最大塑性应变云图可知，夹心墙的混凝土部分主要是受拉一侧发生破坏，主要发生在墙高1000mm以下的受拉一侧。根据平面外受力的SP1~SP3模型分析表明，夹心墙在平面外荷载作用下的裂缝发展，最先出现裂缝的是内叶墙的跨中处，其次是外叶墙跨中两侧出现破坏。较厚的内叶板开裂后，刚度立即退化，内、外叶板间内力产生重分布，外叶板承受荷载增大后立即开裂，因此内、外叶板开裂荷载相差很小。最后建立了受剪切模型JXK1，根据JXK1模型的应力云图可知，混凝土主要承担剪切力，同时钢管也有承受剪切力，表明钢管和混凝土共同承担受力。 通过改变不同模型的相关参数，进行模拟分析后得出：夹心保温墙的平面內承载力随着轴压比的增大而增大，墙体纵向钢筋的强度对墙体的承载力有影响，横向钢筋的强度对承载力没有影响。连接件的布置形式对承载力基本没有影响。当总墙厚变大时，平面外承载力也增加，当总厚度相同时，内叶墙厚度越大承载力越大。正面加载时，夹心墙承载力更大。

The cast-in-place concrete sandwich insulation wall has the effect of heat preservation while satisfying the bearing capacity. The sandwich insulation wall proposed in this paper consists of three parts. The inner wall, the middle insulation layer and the outer wall are opened at the middle of the insulation board, and the micro-square concrete-filled short columns are used as connecting parts between the inner and outer leaf walls. The entire inner and outer leaf wall and the connecting member form a unitary structure, so that the wall is better co-deformed and co-stressed. In this paper, the mechanical properties of the sandwich insulation wall with new connectors are analyzed. The ABAQUS finite element software is used to simulate the sandwich wall with height 3000mm and width 1000mm. The analysis models under three stress states are established: in-plane Vertical and horizontal common force models, out-of-plane interaction models and models under shearing. Through the analysis of the force performance under several loads, the force characteristics of the new sandwich wall are more fully understood. Before analyzing the models under three stress states, the rationality of the model is first verified. By comparing with the reference specimens, the ultimate bearing capacity and failure morphology of the wall are close to the experimental results. Based on the above model, the BWQ1 and BWQ2 models with in-plane force are established. According to the maximum plastic strain cloud image obtained by finite element analysis, the concrete part of the sandwich wall is mainly damaged by the tension side, mainly occurring at the wall height of 1000mm. The following pull side. According to the SP1~SP3 model analysis of the out-of-plane force, the crack development of the sandwich wall under the plane load is the first to occur in the middle of the inner wall, followed by the damage on the middle and outer sides of the outer wall.After the thick inner blade is cracked,the stiffness is immediately degraded, and the internal force between the inner and outer blades is redistributed. The outer blade is cracked immediately after the load is increased, so the cracking load between the inner and outer blades is small. Finally, the shear model JXK1 was established. According to the stress cloud diagram of the JXK1 model, the concrete mainly bears the shearing force, and the steel pipe also bears the shearing force, indicating that the steel pipe and the concrete share the force. By changing the relevant parameters of different models, the simulation analysis shows that the in-plane bearing capacity of the sandwich insulation wall increases with the increase of the axial compression ratio, and the strength of the longitudinal reinforcement of the wall has an influence on the bearing capacity of the wall. The strength of the transverse reinforcement has no effect on the bearing capacity. The arrangement of the connectors has substantially no effect on the bearing capacity. When the total wall thickness becomes larger, the out-of-plane bearing capacity also increases. When the total thickness is the same, the greater the inner wall thickness, the greater the bearing capacity. When the front side is loaded, the sandwich wall has a greater bearing capacity.