scholarly journals 2101) Experimental Study on Prestressed Concrete Beams with an Opening in Shear Span(Structure)

1964 ◽  
Vol 103 (0) ◽  
pp. 157
Author(s):  
Hiroshi Muguruma
2010 ◽  
Vol 163-167 ◽  
pp. 918-927
Author(s):  
Wei Liu ◽  
Zhen Fu Chen

Five different types of self-compacting unbonded prestressed concrete beams are designed to study the bearing properties of self-compacting prestressed concrete flexural members. And experimental studies are conducted on their cracking loads, flexural strengths, ductility of members and failure forms. The testing results provide references for design and establishing related codes of self-compacting prestressed concrete structures.


2012 ◽  
Vol 268-270 ◽  
pp. 749-752
Author(s):  
Shou Yu Cheng ◽  
Dong Jin Yan ◽  
Yan Zhao Li ◽  
Jin Ming Zhai ◽  
Qing Hua Cai ◽  
...  

By the method of plane charge on the tested beams, this paper studied 6 pieces of beams, dynamic performance by 4 time loadings, displayed the deflection waveform curves, measured the bearing ability of beams with different prestress degree, analyzed the effects of the deformed performance and the ductility of the test beams with the different prestress degree. The 6 pieces of PC(prestressed concrete)beams was divided into 2 groups.


2011 ◽  
Vol 243-249 ◽  
pp. 304-307
Author(s):  
Fu Min Li ◽  
Xiao Fei Shi ◽  
Fu Ping Jia

To study the influence of steel strands corrosion on the bond behavior for anchoring of pre-tensioned prestressed concrete beams, nine specimens were fabricated. Of which, 5 beams were mixed with salt and set in different places to be corroded in different intensity for 13 months. Then the load test was held to all the 9 specimens and the load-slip curves were obtained. The results show that under the condition of no corrosion crack, the short-term anchoring bond strength of pre-tensioned prestressed concrete beams increases for the steel strands corrosion. Because the tension behavior of steel strands deteriorates remarkably even if the corrosion is slight, which is the dominant cause for the degradation of fundamental structural behavior, the influence of steel strands corrosion on the bond behavior for anchoring may be ignored.


2011 ◽  
Vol 94-96 ◽  
pp. 485-489
Author(s):  
Shou Yu Cheng ◽  
Dong Jin Yan ◽  
Yan Zhao Li ◽  
Jin Ming Zhai ◽  
Qing Hua Cai ◽  
...  

By the method of plane charge on the tested beams, this paper studied 6 pieces of beams, dynamic performance by 4 time loadings, displayed the deflection waveform curves, measured the bearing ability of beams with different prestress degree, analyzed the effects of the deformed performance and the ductility of the test beams with the different prestress degree. The 6 pieces of PC(prestressed concrete)beams was divided into 2 groups.


2011 ◽  
Vol 266 ◽  
pp. 126-129 ◽  
Author(s):  
Zuo Hu Wang ◽  
Xiu Li Du ◽  
Jing Bo Liu

Five beams were tested up to failure to study the shear behavior of concrete beams prestressed with fiber reinforced polymer (FRP). Different factors were taken into consideration: the type of prestressing tendons and the shear span ratio. The shear failure modes and the influence of different factors on shear behavior were investigated in details. The test results showed that FRP prestressed beams without stirrups had two shear failure modes: diagonal compression failure and shear compression failure; the shear span ratio was the most important factor to determine the failure mode and shear capacity of the prestressed beams. The shear capacity of concrete members prestressed with FRP tendons was lower than that of concrete beams prestressed with steel cables.


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