Research On Multi-support Control Of Building Moving Based On Non-probabilistic Interval Set Model

Building moving is a new engineering technology which was brought out during the proceeding of the urban construction and reconstruction. This technology not only solved the conflict of city planning with the existing buildings which are still useful, but also saved much money, time and manpower. So the building moving technology will have widespread application in the future.There are many problems need to be solved, due to the fact that building moving is on the stage of development. This paper systemically studied the effects caused by the boundary condition changes during the moving process. The methods of simulating building moving engineering were given. The computer aided design system of building moving engineering based on non-probabilistic set theory model was also developed, which can be a helpful tool of obtaining solutions. The research work is listed as following:(1) A non-probabilistic interval set model of building moving was established. The characteristics of variational boundary conditions in the building moving engineering were studied. According to the particularities of multi-cylinder synchronous control system, this paper comes to a conclution that the stress of moving building will be varying within some ranges. The sensitivity of non-probabilistic interval set was defined. The approach to get the sensitivities of force and displacement of supporting points was given. With the precision of multi-cylinder synchronous control system, the reliability levels of its displacement and force were defined.(2) The conception of asynchronous gap of supporting points was presented. By using the optimal technique, the approach to get the maximum safe asynchronous gap of moving direction was proposed.(3) The conception of allowing varying range of supporting points force was presented. In the analysis of the supporting points force, the added hinged bearing bars were applied to simulate the equivalent displacement boundary conditions. By using the interval finite element method, the critical supporting points force value was obtained.(4) The optimization of the supporting point arrangement of building moving engineering which was based on overlap partition genetic algorithm was given. According to the characteristics of building moving engineering, the design variables, the object function, the constraint conditions, the process of optimization and the main parameters were also presented.(5) A computer aided design system which was based on non-probabilistic set theory and finite element method for building moving was developed in AutoCAD VBA environment.