›› 2010, Vol. 31 ›› Issue (9): 2786-2792.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental research on large-scale horseshoe section steel liner modified reinforced concrete penstock

HE Hua-nan1，QIN Jie2，DONG Wei1，HUANG Cheng-kui1   

  1. 1. School of Civil & Hydraulic Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China; 2. Beijing Building Construction Research Institute, Beijing 100039, China
  • Received:2009-03-26 Online:2010-09-10 Published:2010-09-16

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Abstract:

For purpose of solving the problem of durability for conventional steel lined reinforced concrete penstock, steel fiber concrete and steel fiber reinforced self-stressing concrete were adopted to control crack width of out packed reinforced concrete. Based the prototype of penstocks of a hydropower station, two 1:10 reduced scale test members were produced to investigate the structural behavior of steel lined reinforced concrete penstock. Test results show that steel fiber reinforced concrete penstock presented very excellent properties of crack resistance, the initial cracking loads of penstocks increased and the concrete cracking significantly decreased. For steel fiber reinforced self-stressing concrete penstock, the initial cracking loads remarkably improved and the strength of steel material was fully used. The test results also show that both high-performance concrete provided good future in application of steel lined reinforced concrete penstock.

Key words: self-stressing concrete, steel fiber, cracking, penstock, model test

CLC Number: 

  • TU 375
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