From the modern era,architects in the modern sense involved in the construction activities of urban architecture in China.The rich historical documents preserved in the modern architecture make it feasible to trace their construction process and research related historical figures and events,which will to some extent affect the value cognition of modern architecture.Due to the subjectivity of heritage value,the value cognition of modern architecture also has the attribute of"dynamic change".Its artistic and scientific value will change due to previous construction activities,and its commemorative value will change with historical events and be influenced by mainstream social values.From the perspective of"value change",the restoration concept of modern architecture can be summarized into three types:that guided by artistic value,that guided by commemorative value,and balancing artistic value and commemorative value.
modern architecturevalue changesconstruction characteristicsvalue cognitionrestoration concepts