【摘要】 目前，夹心保温墙板已经被广泛使用在建筑保温结构中，但是墙板的饰面层通常采用普通混凝土，使得内部保温材料极易因外饰面开裂脱落而受到腐蚀.因此，选用纤维编织网增强工程水泥基复合材料（Engineered Cementitious Composites,ECC）作为饰面层，通过四点弯曲试验研究夹心保温复合墙板的抗弯性能，影响因素包括保温材料类型、保温层厚度、面层厚度、纤维编织网处理方式、有无连接件和连接件角度.结果表明：增大保温层厚度对墙板抗弯承载力和延性的影响不大，但能够提高墙板的组合程度；发泡聚苯乙烯（Expanded Polystyrene,EPS）保温板与ECC基体的黏结性能更好，墙板的组合程度也更高，但EPS自身的受力性能和刚度较差，使得墙板的承载能力较低；纤维编织网经过浸渍和浸胶黏砂处理会降低墙板的承载能力，但浸胶黏砂处理能提高ECC基体与纤维编织网的黏结从而改善墙板的延性；连接件的存在能够提高墙板的组合性能，并且减小连接件角度或者增大面板厚度有助于提升墙板的抗弯刚度、承载能力和组合性能，但会导致墙板的延性下降.最后，推导了纤维编织网增强ECC(Textile Reinforced ECC,TRE)夹心保温墙板抗弯承载力计算公式，并将计算结果与试验结果进行对比，结果表明提出的计算方法具有一定的可行性.更多还原

【Abstract】 present, sandwich insulation wall panels have been widely used in building insulation structures.However, the decorative layer of wall panels is usually made of ordinary concrete, resulting in easy corrosion of the internal insulation materials due to the cracking and falling off of the finish coat. Therefore, fiber braided mesh reinforced engineering cement-based composite(ECC) was used as the decorative layer for wall panels. And the flexural performance of this sandwich insulation composite wall panels was studied through a four-point bending test with influencing factors including the type of insulation, thermal insulation layer thickness, decorative layer thickness, the treatment method of fiber braided mesh, with or without connectors, and the angle of connectors. The results show that increasing the thickness of the insulation layer has little effect on the flexural capacity and ductility of the wallboard. But it can improve the combination degree of the wallboard. The wallboard made of expanded polystyrene(EPS) insulation board has a higher combination degree due to better bonding behavior between EPS and ECC matrix. The poor mechanical performance and stiffness of EPS make the lower flexural capacity of the wallboard. Fiber textiles processed by dipping and dipping adhesive sand can reduce the flexural capacity of the wallboard, but it can improve the bond between the ECC matrix and the fiber textile due to the process of dipping adhesive sand, thus improving the ductility of the wallboard. The existence of connectors can improve the combined performance of wall panels. Reducing the connection angle or increasing the panel thickness can improve the flexural stiffness, flexural capacity, and combined performance of the wall panel but leads to decreasing the ductility of wall panels. Finally, the calculation formula of flexural capacity of textile-reinforced ECC(TRE) sandwich insulation wallboard was deduced and the results were compared with the test ones, indicating that the proposed calculation method is feasible.更多还原