| Thin-walled square box-situ concrete hollow floor slab is a new architecture, withsuperior value and broad social and economic prospects for the promotion of the use. Thisstudy is on the upper part of the function of a large plaza in Guangdong Province undergroundcivil air defense construction floor space, mainly on the civil defense structure designcharacteristics and use of this new type of floor protection in civil air defense engineeringrequirements and construction requirements; experimented with thin-walled square box situconcrete hollow floor to replace the engineering solid floor, dynamic load analysis of thestructure using the equivalent load method, using the plate method proposed is equivalent tothe hollow solid plate, using the finite element software SAP2000build floor space forcemodel, focusing on the discussion of the new hollow force and deflection performancevariation under different load cases and different empty heart rate; using common designsoftware PKPM, mansions on the floor be reinforced, a brief discussion of its undergroundspatial structure engineering operations economic advantage. Summarize the generalconclusions through comparative analysis, to provide a reference for the future of thin-walledsquare box used in situ concrete hollow floor structure similar to the underground space.Contents of this thesis are summarized in the following points:(1) establish a solid floor model model and contrast walled square box-situ concretehollow floor, and comparative analysis of the two forces, deformation difference, sum ofthin-walled square box-situ concrete hollow floor in different conditions distribution of internal forces and deflections variation.(2) were on the roof of hollow and solid roof reinforcement calculation performed andcompared both the amount and the concrete aspects of economic superiority.(3) establish a hollow floor model under different empty heart, empty heart of differentfloor of the new force, deflection and other effects. |
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