Experimental Study on Damaged Prestressed Concrete Beams Using External Post-Tensioned Tendons

2019 ◽  
Vol 117 (1) ◽  
Author(s):  
Weichen Xue ◽  
Yuan Tan ◽  
Fei Peng
Keyword(s):  
Experimental Study ◽  
Prestressed Concrete ◽  
Concrete Beams ◽  
Post Tensioned

Experimental study of the post tensioned prestressed concrete corbels

2016 ◽  
Vol 108 ◽  
pp. 1-11 ◽  
Author(s):  
Małgorzata Lachowicz ◽  
Krystyna Nagrodzka-Godycka
Keyword(s):  
Experimental Study ◽  
Prestressed Concrete ◽  
Post Tensioned

Feasibility Study of Prestress Force Prediction for Concrete Beams Using Second-Order Deflections

2018 ◽  
Vol 18 (10) ◽  
pp. 1850124 ◽  
Author(s):  
Marco Bonopera ◽  
Kuo-Chun Chang ◽  
Chun-Chung Chen ◽  
Yu-Chi Sung ◽  
Nerio Tullini
Keyword(s):  
Prestressed Concrete ◽  
Concrete Beams ◽  
Flexural Rigidity ◽  
Beam Theory ◽  
Concrete Bridges ◽  
Prestress Loss ◽  
Prestressed Concrete Bridges ◽  
Loss Prediction ◽  
Euler Bernoulli Beam ◽  
Post Tensioned

The safety and sustainability of prestressed concrete bridges can be improved with accurate prestress loss prediction. Considerable loss of the prestress force may imply damages hidden in the bridge. In this study, a prestress force identification method was implemented for concrete beams. Based on the Euler–Bernoulli beam theory, the procedure estimates the prestress force by using one or a set of static displacements measured along the member axis. The implementation of this procedure requires information regarding the flexural rigidity of the beam. The deflected shape of a post-tensioned concrete beam, subjected to an additional vertical load, was measured in a short term in several laboratory experiments. The accuracy of the deflection measurements provided favorable prestress force estimates. In particular, the “compression-softening” theory was validated for uncracked post-tensioned concrete beams.

Experimental Study on Bearing Properties of Self-Compacting Prestressed Concrete Beams

2010 ◽  
Vol 163-167 ◽  
pp. 918-927
Author(s):  
Wei Liu ◽  
Zhen Fu Chen
Keyword(s):  
Experimental Study ◽  
Prestressed Concrete ◽  
Concrete Beams ◽  
Experimental Studies ◽  
Concrete Structures ◽  
Flexural Members ◽  
Different Types

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.

Experimental Study on PC Beams Dynamic Performance with the Itial Effective Prestress

2012 ◽  
Vol 268-270 ◽  
pp. 749-752
Author(s):  
Shou Yu Cheng ◽  
Dong Jin Yan ◽  
Yan Zhao Li ◽  
Jin Ming Zhai ◽  
Qing Hua Cai ◽  
...  
Keyword(s):  
Experimental Study ◽  
Prestressed Concrete ◽  
Concrete Beams ◽  
Dynamic Performance

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.

Sign in / Sign up

Export Citation Format

Share Document