国际文摘（英文）

Energy and Buildings http://w w w.sciencedirect.com/science/journal/03787788/140Volume 140,Pages 1-508(1 April 2017)(1)Effectiveness of design codes for life cycle energy optimization,P61-67,by John Orr,Ana Bras,Tim Ibell Abstract:The built environment is materially inefficient,w ith structural material w astage in the order of 50%being common.As operational energy consumption in buildings falls,due to continued tightening of regulations and improvements in the efficiency of energy generation and distribution,present inefficiencies

Energy and Buildings http：//w w w.sciencedirect.com/science/journal/03787788/140Volume 140,Pages 1-508（1 April 2017）（1）Effectiveness of design codes for life cycle energy optimization,P61-67,by John Orr,Ana Bras,Tim Ibell Abstract：The built environment is materially inefficient,w ith structural material w astage in the order of 50%being common.As operational energy consumption in buildings falls,due to continued tightening of regulations and improvements in the efficiency of energy generation and distribution,present inefficiencies in