Tectonic And Analysis On The Connection System Of Steel Structural Building

The naissance of steel structural system building means a great change from the noumenon of the architecture. And it affirmatively brings us the innovation of building system, building technologies, construction, building forms. As a kind of the basic units that constitutes steel structure building, connection system plays a unique and most important role in the building function and building form. Under many limitations, steel structure buildings are not applied widely in China. So, many native architects know a little about steel structure building, even less about the importance and the complexity of connection systems of steel structure building. This state leads to many problems, such as incorrect and irrational building technologies, unfashionable building forms. So, the research work trying to solve those problems has been done, which are showed in this dissertationFirstly, from the views of building system and function, the types and features of steel structure connection have been sorted out, and the influential factors to the construction of building joints have been parsed. The results of all these work provide a good condition for thoroughly perceiving the steel structure building connection. According to the roles, the types of connections in a steel structure building are divided into configuration connection, and structural connection. The structural sub-system and the enclosure sub-system have their own connection system. And each connection system has its own feature. The features and the construction technological kernel are summarized combined with the connection s of some celebrated steel structure buildings. The tectonic of steel structure building connection system is confined by many complex, visible and invisible influential factors. Some of the factors are objective, such as material, structure and environment. Some are subjective, such as arts and crafts, feeling on beauty, creative method. It is a effective approach to make the influence on tectonic clear that subjective and objective factors are parsed.Secondly, the connection system of the steel structure system building shows the character with complexity, diversity, hierarchy, hi-tech. All these characters make it difficult that to get a universal, uniform standard result with a usual appraise method. Based on the scientific classification to various factors, the investigation information and reference date, the hierarchy fuzzy inference appraise method is put forward with fuzzy theory. It is helpful to comprehend the joint system of steel structure completely and thoroughly. Thirdly, the tectonic of connection of steel structure building not only needs the rational technologies, but also art originality and the method of form construction. Based on the basic constituting kernel of the node of steel structure, the operation objects have been discovered. The basic principles that are the unification of form to matter, the match of art with technology, and the harmony of part and whole have been summed up for the tectonic of the node of steel structure. And how to operate skillfully to the detail of a node and how to make a node into a new element of the building under various condition have been probed.Fourthly, the tectonic of the connection of steel structure building has been explored specially with two specific objects. One is the connection of the industrialized steel structure residential building. Another is a new type connection with a special function against the effect of fire in steel structure frame building. The correlating influential factor to the industrialization and the residential function are analyzed. And the problems of the existent steel structure residential building are summed up. The connection system of the industrialized steel structure residential building has been probed, especially the connection system of residential sloping roof. And a new-type building system and its connection system combined with a special-shape section column with corrugated steel web plate have been probed based on the organic integration of structure and architecture.Lastly, aimed at the weakness of fire-resistant behavior of steel structure building, a new special connection with equalizing temperature deformation of expanding structural member under fire condition has been discuss from the aspects of theoretic basis, operation mechanism, conceptional model, and feasibility.All in all, by the way of parsing the features and tectonic key factors steel structure, deeply and correctly comprehending the key technologies of connection system, it will be helpful to choose a connection's detail and style, and it will be successful achieve the goals of art distinctive building from and pre-set function of building connection system.