## 4 Conclusions  
In this paper, a new type of double-row reinforced ceramsite concrete energy-saving composite wall panel was proposed by changing the thickness of the structural layer of the wall panel, material properties, and the form of reinforcement. Its seismic performance was studied. The main conclusions are as follows:  
1. This paper proposes a new type of sandwich composite wall panel with an integrated insulation system and wall panel structure, whose unique construction form can not only block a fire source and avoid a fire but also easily solve the common problem of the easy shedding of insulation materials in engineering, which has a good prospect for engineering applications. 2. The new sandwich composite wall panel adopted double rows of reinforcement, and the connection method adopted straight inserted reinforcement. Tie-bar connectors could effectively fix the insulation board, improve the overall force and deformation performance of the composite wall panel, and increase the ductility and energy dissipation capacity of the members. Furthermore, the test results showed that the seismic comprehensive index of the members could be effectively improved by optimizing the structure layer thickness, material type, and reinforcement of the wall panels. 3. The use of ceramsite concrete instead of plain concrete as the panel material with the same size resulted in a slight reduction in the load-bearing capacity, but significant advantages in terms of the energy dissipation capacity and ductility. The new sandwich composite wall panel's self-weight was reduced by about 20% compared with the composite wall panel without an insulation board of the same size, which was conducive to enhancing the seismic performance of the overall structure of the wall panel. 4. To improve the bearing capacity of the new wall panel, the additional fiber in the vitrified concrete was a proven method. Compared with W-1 (specimens without the addition of fiber) in terms of cracking and yielding to the ultimate load, the results for W-2 (specimens with 0.3% fiber volume admixture) increased by 22.2%, 7.8%, and 3.2%. This phenomenon indicated that the addition of fibers could effectively retard the cracking of the wall panels. In addition, adding the right amount of fiber could improve the load-bearing capacity and energy dissipation capacity of the wall panel to a certain extent, and improve the comprehensive mechanical index of the sandwich wall panel. However, the addition of too many fibers was counterproductive. In the subsequent optimization design of a wall panel, the type of fiber and the amount of fiber incorporation can be studied more deeply. 5. According to the law of stiffness degradation and the law of force deformation of vertically distributed reinforcement, it could be concluded that the degradation trend of the double-row reinforced ceramsite concrete sandwich composite wall slab was relatively gentle, and the components of the wall slab worked well together. The wall slab with ceramic concrete material had a discounted stiffness compared with that of ordinary concrete material. The results of this study showed that when the fiber admixture was 0.3%, the problem of the stiffness reduction of the wall panel could be effectively solved. The same conclusion could be drawn from the material strain analysis. The double-row reinforced ceramsite concrete sandwich composite wall panel could give full play to the advantages of each constituent material and work synergistically to share the force. [PERSON] performed the tests, analyzed the data and wrote the paper. [PERSON] and [PERSON] conceived and supervised the work. All authors contributed to conclusion of the thesis. All authors have read and agreed to the published version of the manuscript. The authors would like to express heartfelt gratitude to the financial support by the Science Technology of the Ministry of Housing and Urban-Rural Development (No. 2018-K9-065), China Postdoctoral Science Foundation funded project (No.