原文传递
Cyclic behavior of hollow-core diaphragm subassemblies
| 题名： | Cyclic behavior of hollow-core diaphragm subassemblies |
| 正文语种： | 英文 |
| 作者： | Nelson M. Angel; Juan F. Correal; Jos?I. Restrepo |
| 关键词： | Diaphragm; experimental performance; hollow-core slab; topped diaphragms; untopped diaphragms |
| 摘要： | This paper highlights the results of the experimental phase of a comprehensive research project on the seismic performance of hollow-core diaphragms. The four specimens tested resembled a subdiaphragm region framed by beams. Variations in the boundary conditions of the hollow-core slabs and the inclusion of a cast-inplace concrete topping slab were considered. A bidirectional test fixture was used for simultaneous control of in-plane lateral load and bending deformations. Global and local behaviors were examined under a sequence of increasing cyclic demands. Untopped hollow-core diaphragm specimens exhibited stable behavior that was influenced by shear strength along longitudinal joints and a bearing mechanism that developed between the hollow-core slabs and the supporting beams. The performance of the topped specimen was affected by localized damage to the cast-in-place concrete topping and large demands on the welded-wire mesh reinforcement. |
| 出版年： | 2019 |
| 期刊名称： | PCI-Prestressed Concrete Institute Journal |
| 期： | 2 |
| 页码： | 80-96 |
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