Graduation project opening report
1. Project name:
Software development of multi-story and multi-span reinforced concrete frame
2. Research background of the project:
The structural scheme to be written is the design of concrete frame structure, and buildings refer to all kinds of houses and their ancillary structures. A building structure is a plane or spatial system that bears the action (or load) by connecting several components such as beams, plates and columns.
An example is compiled with the latest code for design of concrete structures (gb500 10-XX) issued by the Ministry of Construction. Compared with the original Code for Design of Concrete Structures (gbj 10-89), the newly added content accounts for about 15%, the content with big modification accounts for about 35%, and the part that maintains and basically maintains the original content accounts for about 50%. The code comprehensively summarizes the release of the original code.
3. The significance of the project research:
In architecture, structure is an important part of providing safety, reliability, durability, energy saving and material saving for buildings and satisfying architectural functions. It is closely related to the industrialization level of building materials, products and construction, and is of great significance to the development of new technologies. New materials play an important role in promoting mechanization and automation.
Because there are many mathematical formulas involved in structural calculation, and the norms and standards involved are very scattered. And the amount of calculation is very large. In recent years, with the further development of economy, urban population is concentrated, land is tight, and business competition is fierce, which further aggravates the complexity of residential design, and many multi-storey and high-rise buildings are constantly built. These buildings objectively need computer program-aided design in terms of time and labor. In this way, structured software development is particularly important.
Whether the structural design of a building is reasonable or not mainly depends on the structural system, structural layout, section size of components, material strength grade and the rationality of the main mechanism structure. These problems have been solved correctly, and structural calculation and drawing construction drawing are another arduous concrete program design work. Therefore, the manual calculation method originally used in the school will be applied to the specific program code, and the energy will not only be focused on how to use the learned structural knowledge to design the practice, but also on how to realize these practices with the code.
4. Literature review
In different types of structural design, some contents are the same. The key to designing a frame structure is to reduce omissions and errors, and so is the computer.
Unified Standard for Design of Building Structures (gbj68-84) This standard is the basic principle for reasonably unifying the design of building structures made of various materials, and it is the guideline to be followed when formulating the design specifications for industrial and civil building structures, steel structures, thin-walled steel structures, concrete structures, masonry structures and wood structures, as well as the seismic design specifications for foundations and buildings. These specifications shall be formulated according to the requirements of this standard. When formulating other civil engineering structural design specifications, you can refer to the principles stipulated in this standard. This standard applies to the overall structure of buildings (including general structures), as well as the components and foundations that constitute the structure; It is suitable for the use stage of the structure and the construction stage of the production, transportation and installation of structural members. Modern structural reliability design theory is introduced into this standard, and the limit state design method based on probability theory is used for analysis and determination, that is, various factors affecting structural reliability are regarded as random variables, so that the design concept and method are based on statistical mathematics, and the reliability of the structure is measured by the failure probability determined mainly according to statistical analysis. Probability design method? This is an important development of design thought. This is also the general trend of the development of engineering structure design methods in the contemporary world, and the probabilistic limit state design method is the most widely used country in China's design codes (or standards) so far.