| Prefabricated concrete structures are fast-build,environmentally friendly,energy-saving and less labor-intensive,which is the strong development trend of the construction industry.Nowadays,most of the search and application processes for precast panels are improved based on different types of laminated panels.Not only is the construction quality difficult to control,but also the amount of wet work is relatively large.For this reason,this research suggests a method of connecting a pre-made panel of auxiliary type.This connection method is a fully prefabricated panel connection method.The connection part has continuous power transmission and good safety,which can better control the engineering quality and greatly reduce the humidity.This connection method not only ensures storage capacity,but also facilitates construction,energy saving and environmental protection,and has a better application perspective.Use ABAQUS finite element software to model test panels on site,perform computational analysis,study failure mechanism and mechanical performance of plate under static load,compare test results and simulation results,and discover that the fault is within the permissible range,which demonstrates that simulation using ABAQUS software for the final element Correct and reliable.Using the same simulation method,the fully pre-fabricated metal plate connection and the additional complete virgosbeam plate connection are modeled and analyzed,and the mechanical properties of the auxiliary connection are discussed.By comparing and analyzing the bending performance of the casting site and snap mounting site,the feasibility of the structure of the precast plate joint is analyzed.The results show that the snap contact has a better energy transfer mechanism.The precast conductive steel panels on the upper and lower sides of the plate and the buckle joint can ensure the long continuous power transmission of the steel rods in the plate,which solves the transportation problem when the laminated plate is connected.Due to the disadvantage of force cutout,the plate has good force coordination performance,and the method of screw placement in the joint meets the shear requirements of the joint,which is the engineering feasibility.By analyzing how many factors affect the bending performance of the hinged structure of the fully formed chipboard plate,the results show that increasing the length of the hinge portion of the pre-bonded steel plate can increase the yield and final load of the additional plate.;It increases in a certain range the thickness of the prefabricated continuous steel sheet increases,the number of prefabricated continuous steel plates increases,and it can increase the payload and final load of the plate,but after this range is exceeded,the thickness of the prefabricated continuous steel sheet increases the number of the prefabricated continuous steel plate increases,And the transition to the snap-in connection plate load and the final load have no effect;The strength of prefabricated connected steel plate,the width of the end of the prefabricated steel connected plate,the distance from the inner edge of the BUCKLE prefabricated steel conductor resto end to the inner edge of the BUCKLE hatch,and the width of the outer edge of the prefabricated steel bearing is basically unaffected by the poor performance.By comparing the failure mechanism and bending performance of snap joint wires,beam,and cast girder ceiling joints cast in place,the feasibility of connecting a finished and fully primed girder plate is analyzed.The results show that the snap contact has a better energy transfer mechanism,and the total contact has better cooperative energy performance.The bearing capacity of the additional girder plate knot is slightly higher than that of the cast iron girder plate knot,and the failure process is similar.Panel connection can be equivalent to cast girder plate joint.By analyzing how many factors affect the bending performance of an additional complete support plate joint,the results show that: Increasing the pre-conduction length of the steel plate joint part can reduce the payload and final load of the full auxiliary tool-the pre-board height.An increase in a certain range,an increase in the thickness of the finished conductive steel plates,an increase in the number of finished steel sheets,and the payload and final load of the joint can increase,but after this range is exceeded,the thickness of the finished joints increases,the number of finished conductive steel plates increases,and the payload load of the plate Snap plug and final load has no effect;The strength of the pre-conducted steel plate,the width of the end of the pre-conducted steel plate,the distance from the inner edge of the pre-joined steel end from the risotto end of BUCKLE to the inner edge of the BUCKLE hole,the width of the outer edge of the hole connecting the prefabricated steel end et betraff.Arc performance is basically not affected.From the simulation results,it can be seen that the power output of the auxiliary connection can be equivalent to a cast-in-place structure.According to the results of the calculation,suggestions for the values of various contact parameters were made in the initial design.The design formula for the thickness of the prefabricated prefabricated steel plate is derived for the fully packaged plate under different strengthening ratios and different thicknesses of the plate,and the storage capacity calculation formula for the fully prefabricated plate is derived.Finally,along with the current project,the design proposals for the fully described sheet are presented. |
