Experimental Study on Static Properties of Fabricated Concrete Beams with Dry Nodes(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2017年03期
- Page:
- 31-38
- Research Field:
- Publishing date:
Info
- Title:
- Experimental Study on Static Properties of Fabricated Concrete Beams with Dry Nodes
- Author(s):
- CHENG Dong-hui; TIAN Ye-huan; ZHANG Liang-quan; XU Peng-cheng
- School of Civil Engineering, Northeast Forestry University
- Keywords:
- fabricated concrete beam; dry node; static load test; bearing capacity; crack
- PACS:
- -
- DOI:
- -
- Abstract:
- In order to solve the construction inconvenience of node wet operations when connecting prefabricated concrete members, seven concrete simply supported beams were made, including one insitu concrete simply supported beam, one precast concrete simply supported beam connected by wet node according to Connecting Node Configuration of Prefabricated Concrete Structure and five precast concrete beams linked by different dry nodes. The mechanical properties of the beams under static load were tested by twopoint loading. The test data such as the bearing capacity, deformation and crack distribution were obtained. The results show that the carrying capacity of concrete test beams connected by dry nodes of steel welding and steel bolts are equivalent to insitu concrete beams. The carrying capacity of concrete test beams connected by steel anchors, prestressing and inserting reinforcing bars are slightly weaker than insitu concrete beams. The measured values of deflection and maximum crack width of concrete test beams with dry nodes are slightly larger than the insitu concrete beams.
Last Update: 2017-05-31