| Disk lock steel tubular formwork shoring because of the simple structure, convenient installation, relative low cost than other formwork shorinng, Which has a vast development potential in the field of architecture. The resreach for this form of formwork is not very mature now. In order to explore the mechanical perfonnance of disk lock steel tube formwork supports, based on jiont node performance test and mechanical behavior of the Tube fastener support system, bolt type steel formwok shoring, using the Finite element analysis software SAP2000modeling analysis of the whole frame and the socket node to simulate the mechanical performance, the thesis comparative analyzes the effects which influencing factors on mechanical behavior of formwork shoring and draw useful conclusions.The main content is as follows:(1)Comparative analysis of various calculation model and calculation method of the formwork shoring support system, summarized he strengths and weakness.(2)Experimental study on socket node, including node tensile, compressive, plunger, compressive experiment, completed the stiffness coupling of socket node, at the same time find out tensile, compressive, plunger, compressive bearing capacity.(3)Using initial connection stiffness from semi-rigid node tests and adapting F EA software platform to stimulate nodes of semi-rigid connection to establish the s ocket and panel fastener steel pipe support formwork. Through comparison and an alysis rigid midel and semi-rigid model Including rigid model and semi-rigid mode The resluts shows how the nodes of semi-rigid to influence the stablity bearing cap acity of socket and panel fastener steel pipe support formwork.(4) Analysis the factors of joint node, life height, number of steps, different Settings of standing tube, horizontal, vertical cross support strengthening layer setting and level, even the anchoring in different Settings, which on the experimental study strengthen the influence of the ledger at the top. |
