The Bearing Capacity Of Composite Green Energy-Saving Wall In Cold Region

In the environment of country’s promoting energy conservation, building energy efficiency becomes a trend soon and the energy conservation of envelope is important. The green energy-saving composite wall is proposed after studying the multi-ribbed slab structure. As one of the new energy-saving system, the multi-ribbed slab structure embedding large numbers of filled blocks and bearing frame has achieved good results in and the practical application. The green energy-saving composite wall proposed in the article embedding plant fiber blocks, material for blocks is the commonly corn stalks. The wall can widely apply in north rural areas with low cost. The green energy-saving composite wall can meet standards of green building and energy-saving building, and certainly has a broad application space in the future.After browsing extensive literature references, the paper has been studied the mechanical characteristics of green energy-saving composite wall under the vertical load and discussed energy efficiency of the wall. The content are as following:1The multi-ribbed slab structure is introduced and the green energy-saving composite wall is proposed in the paper. Two1/2models of green energy-saving composite wall experiments under vertical load are presented, the deformation performance and the role of each part are studied. Further, the impaction on green energy-saving composite wall is also studied.2The ANSYS finite element software is used to establish the model of green energy-saving composite wall, the failure pattern and stress of the wall has been obtained by analysis. The finite element analysis is verified to be accurate through the comparison with experimental analysis. 3By introducing capacity formula of multi-ribbed slab structure put forward by other scholars and own derivation, the vertical load bearing capacity formula of green energy-saving composite wall is obtained and compared with experimental data. Also, elevate coefficient of the plant fiber blocks is obtained, which greatly improve the applicability of the formula.4Through theoretical analysis and finite element thermal analysis of green energy-saving composite wall thermal insulation properties, the thinner of building envelope comes into reality and the advantages of green energy-saving composite wall is presented. All this provide a theoretical basis for the application of green energy-saving composite wall.5The mechanical characteristics and thermal properties is summarized of green energy-saving composite wall under vertical loads, outstanding issues raised on the wall for further research and application are reviewed.