Research On CAD System For Bracing Structure Of Deep Foundation Pit

The paper takes soil-pit and rock-pit in CHONGQING area as an example. The design process of foundation pit steely retaining-structure is analyzed from which the most unfavorable state of steely retaining-structure is derived. This provides precious dependences for the rational,economicaly and quickly resolves the problems of foundation pit steely retaining-structure, especialy the foundation pit being high and complex. But up to now , the design of foundation pit steely retaining-structure system is still based on the hand-calculating and drawing,the quality and the speed can't meet the design of meeting. In order to alleviate the designers'hardness and make the most of the strong point of calculation and data disposal of the computer, on the basis of the current code and the designers'experience, it is a try to develop a complete CAD system of foundation pit steely retaining-structure system. The system gets good results in Engineering Practice. Now there is no this kind of the systerm and it can bring convenience for users.The CAD system conforms to the country code technical code for building Foundation pit steely retaining-structure (JGJ 120-99). In the system there is many functions including data input in man-machine conversation, creating model, loading calculating, calculating force, designing element and displaying and output the drawing and calculating data. The CAD system is a useful and convenient tool in the design of foundation pit steely retaining-structure system.The system is adapt to windows XP and developed with the computer language visual C++6.0. There are many advantages in the system such as good result and output form, readability and expanding easily and so on.