It introduces the basic situation of fascist building,through the analysis on the space structure,bearing structure,enclosure structure and the elevation structure of the representative work of Tragni of fascist building,it makes people comprehend the construction thought of Tragni,and explore its actual meaning.

Pouring piling was adopted to enclosure structure( partly with steel of H section);Anchor rods and concrete anchor work together to form a compound supporting;Connective concrete beams were set on retaining walls.

C diagonal brace as enclosure system, anchorage of H steel brace by post-insertion, Trestle-type excavation in layers and so on.

Based on the actual practice,the authors show the SMW pile enclosure structure used in deep foundation pit,and summarize the construction technologies.

Practice proves that semi-reverse con-structed diagonal bracing technology can improve rigidity of the exteriorsupport, ensure safety of the surrounding buildings and pipelines, andreduce cost for the pit exterior protection at the same time.

The application of high-pressure rotating pile in deep foundation pit support;

, which is the optimal supporting plan for underground and opening project.

leakage of envelope connections in light weight steel structures is a common question.

For the design of envelope connection structure of one storey industrial factory buildings with light steel structure,there is no unified standard atlas presently,therefore such design is not standard to some extent.