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In China, building energy has a large basic consumption, along with the development of urbanization, building energy consumption will increase further, while the energy supply capacity with greater reliability is limited, therefore, follow-up development will first encounter energy supply bottleneck in traditional way. To this end, based on the current situation of China's energy supply and energy consumption, urbanization development potential under the condition of guaranteed energy security is analyzed, the countermeasure such as to promote the development of intelligent building is put forward to break the energy constraints in the process of urbanization development, consequently China's path to accelerate the development of intelligent building is proposed.

The paper is aimed at studying the purification effects of COD, TN, TP and SS to waste kitchen water by using three different wetlands constituted by a single oenanthe javanica, single acorus calanmus, oenanthe javanica+acorus calanmus mixed configuration under the same load and the same hydraulic conditions. The results showed that oenanthe javanica is effectual for removing COD and TN, acorus calanmus is effectual for removing TP. As for the way of configuration, single configuration is preferred for removing COD, mixed configuration is preferred for removing TN and TP, the effect of the three configurations for removing SS is generally of the same level.

Based on the statistical model for the tensile statistical strength of unidirectional composite materials, a new method is proposed to calculate the tensile statistical strength of the 3-D braided composites. The numerical result shows that the tensile statistical strength of 3-D braided composites can be predicted according to this method.