Study On Construction Technology And Reliability Of Beam-type Transfer Floor In Concrete Structure

In the structural design of multistory building, if the structure formation of the superstructure is different to the substructure's, often a transfer floor is adopted. This kind of transfer floor has played function of forming a connecting link, it is quite complicated under stress, obviously, it is a nodus in the structural design. It's large size of section, a mass of consumption of concrete and reinforcing steel bar, and uncertain factors, cause notable difficulty to the construction and quality control of transfer floor.If quality control does not call into play, or has not made the rational construction scheme in advance, it is very apt to lead to the fact that all kinds of quality problems take place in the construction stage, even bring great losses that will result in doing over again. So we should pay close attention to the pivotal construction technology problems and analyze relevant factors to make feasible construction scheme so as to guarantee the reliability of construction.Around the construction of actual transfer floor, this text analyzes emphatically relevant factors which impact the quality of transfer floor theoretically.The groundwork that this text does includes:(1) About the support system of the transfer floor, this text calculates different support schemes, and make a selection of the schemes; adopts several kinds of calculation models to analyze the result of actual support system; also carrys on reliability analysis of support system.(2) About concrete work, this text analyzes the main failure modes that appear possibly during the construction stage (include slump constant control, construction joint, interface treatment and control, temperature of crack.).(3) About reinforcing work, this text carry on sensitiveness analysis about construction factors which cause quality problems.(4) In addition, this text carries on probabilistic analysis about the quality control result of supervision of construction; introduces and identify the factors about how to strengthen the workmanship of supervising engineer and makes some suggestions; probes into the function and work procedure of supervision software in quality control.The final purpose of this text is to give some uses of reference for engineers...