Affiliation of Author(s):
土木工程学院
Journal:
8th International Conference on Steel-Concrete Composite and Hybrid
Key Words:
中文关键字:组合结构;杂交结构;球面网壳,英文关键字:composite structure; hybrid structure; spherical r
Abstract:
Abstract: Large spatial structure has been developed quickly in recent years, especially the steel reticulated shell has been widely used in all of the world. The steel reticulated shell has a bad stability for geometrical nonlinear, sensitivity to initial limitation and boundary condition. Engineering appraisal is higher because the steel is expensive than other building material。With the singularity structure research becoming thoroughly, it is found that the steel-concrete composite structure can sufficiently display the mechanical behavior of different materials, composite structure is more proper, the bearing capacity is improved greatly. In the last 20 years, a research tide appeared in our country, many scholars have studied composite reticulated shell. Through different sections and the combination of different structure style, they proposed many different hybrid structures, such as composite shell, sheet space structure, partial double-layer lattice-ribbed dome, arc-supposed-reticulated shell, the great span steel-concrete shell structure, composite ribbed shell and so on. All of these structures have the same advantages: make use of different materials and structure mechanical behavior, reduce the initial limitation sensitivity of shell structure, increase the structure bearing capacity and have the decoration and maintenance performance. However, the forms, structure styles, mechanical behavior, research keys as well as the ways of research are different from each other. Therefore it is necessary to summarize the content above, and give some suggestions to the development directions of the composite shell structures.