Shaking Table Test and Numerical Investigation of RC Structures with Specially Shaped Columns in High Eismic Intensity Zones

Abstract eng:
Due to the predominance in easy of attainment for dwelling function requirement, the reinforced concrete (RC) structures with specially-shaped columns (SSC) gain acceptance in Mainland recent years. The differences between the behavior of such structure and of structure with rectangular columns focus research's attention on its seismic performance, especially on the applicable coverage in high intensity zones. Several shaking table tests and pseudo-dynamic tests of such structure have been done in recent years, but most of them were based on seismic fortification intensity 7 zones or below. In concert with the development of national Technical Specification for Concrete Structures with Specially Shaped Columns, a six-storey RC frame of 1/6 scale and a ten-story RC frame-shearwall of 1/8 scale with SSC in seismic fortification intensity 8 zone and type 3 site was designed for shaking table test, taking the requirement of elasto-plastic properties simulated by artificial mass into account. The test puts emphasis on the applicability of computational model, the global seismic performance and damage mechanism of structure. Together with the results of corresponding numerical investigation and practical application trial design of prototype structures, experimental phenomena reveals the pros and cons of this structure system, that is the easy attainment for drift control requirement and predomination of beam hinge mechanism under major shock, and more attention should be paid to joint capacity for its application in high intensity zones.

• Export as: BibTeX | MARC | MARCXML | DC | EndNote | NLM | RefWorks
• Add to your basket