原文传递
Performance of CFRP posttensioned transverse grouted joints for full-depth precast concrete panels
| 题名： | Performance of CFRP posttensioned transverse grouted joints for full-depth precast concrete panels |
| 其他题名： | 1.Federal Highway Administration."Prefabricated Bridge Elements and Systems."Last modified May 18,2012.http://www.fhwa.dot.gov/bridge/abc/prefab_def.cfm. |
| 正文语种： | 英文 |
| 作者： | Erika D. Weber |
| 关键词： | Accelerated bridge construction;bridge;carbon-fiber-reinforced polymer;cracking load;deck;joint;posttensioning. |
| 摘要： | One method employed in accelerated bridge construction is the use of full-depth precast concrete panels to construct new bridge decks or replace existing ones. The grouted transverse joint between precast concrete deck panels is one of the most vulnerable elements of the bridge deck. To extend the life of precast concrete bridge decks, it is imperative to improve the integrity of the grouted transverse joint. This paper compares the effect of low posttensioning stress on the initial joint cracking load, the peak load, and the overall behavior of precast concrete panels at a new female-to-female grouted transverse deck joint. Nine specimens with grouted transverse joints were tested monotonically to failure using an equivalent concentrated double-tire truck load. Three of the nine specimens had no posttensioning, three specimens were subjected to a 35 psi (240 kPa) posttensioning stress, and three were subjected to a 48 psi (330 kPa) posttensioning stress using carbon-fiber-reinforced polymer rods. Low posttensioning stress in the panel joint area increased both the initial joint cracking load and peak load capacity of the specimens and changed the failure mode from a bond failure of grout to concrete for the specimens without posttensioning to a tensile failure of the grout for the post-tensioned specimens. |
| 出版年： | 2015 |
| 论文唯一标识： | J-30Y2015V60N03040 |
| 英文栏目名称： | Bridges |
| 期刊名称： | PCI-Prestressed Concrete Institute Journal |
| 拼音刊名(出版物代码)： | J-30 |
| 卷： | 60 |
| 期： | 03 |
| 页码： | 39-49 |
相关文献
- Precast concrete deck-to-girder mechanical connection for accelerated bridge construction
- Global experimental response of a three-story, full-scale precast concrete shear wall structure with reinforcing bars spliced by grouted couplers
- Precast concrete panel connection seismic performance guide online
- Replacing the Boeing North Bridge
- Experimental evaluation of overlays for precast concrete decks used in accelerated bridge construction
- Seismic evaluation of grouted splice sleeve connections for reinforced precast concrete column-to-cap beam joints in accelerated bridge construction
检索历史
应用推荐
