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Mostrando ítems 1-6 de 6

Bond mechanism of 18-mm prestressing strands: New insights and design applications

Dang, Canh N.; Martí Vargas, José Rocío; Hale, W. Micah (Techno-Press, 2020-10-10)

[EN] Pretensioned concrete (PC) is widely used in contemporary construction. Bond of prestressing strand is significant for composite-action between the strand and concrete in the transfer and flexural-bond zones of PC ...
Bond of 13 mm prestressing steel strands in pretensioned concrete members

Martí Vargas, José Rocío; Serna Ros, Pedro; Navarro Gregori, Juan; Pallarés Rubio, Luis (Elsevier, 2012-05-07)

This paper presents an experimental research work to determine both the transmission and the anchorage lengths of seven-wire prestressing steel strands in different concrete mixes. A testing technique based on a bond ...
Influence of concrete strength on development length of prestressed concrete members

Ramirez-Garcia, Alberto T.; Floyd, R.W.; Hale, W. M.; Martí Vargas, José Rocío (Elsevier, 2016)

[EN] Fifty seven prestressed concrete beams were fabricated at the University of Arkansas (UA) to determine the influence of concrete strength on the development length of seven wire prestressing strand. The variables ...
Measured Development Lengths of 0.7 in. (17.8 mm) Strands for Pretensioned Beams

Dang, Canh N.; Floyd, Royce W.; Micah Hale, W.; Martí Vargas, José Rocío (2016-01)

The use of 0.7 in. (17.8 mm), Grade 270 (1860) prestressing strands in construction is slow regardless of the engineering advantages of these types of strands. The limited research data and unavailable design guidelines ...
Quantification of bond performance of 18-mm prestressing steel

Dang, C.N.; Hale, W. M.; Martí Vargas, José Rocío (Elsevier, 2018)

[EN] The use of 18-mm prestressing strands has extensive advantages in building and bridge construction. Strand bond is a critical factor that constitutes the strand behavior in pretensioned concrete girders and directly ...
Spacing requirements of 0.7 in. (18 mm) diameter prestressing strands

Dang, C.N.; Floyd, R.W.; Hale, W.M.; Martí Vargas, José Rocío (2016)

[EN] The use of 0.7 in. (18 mm) diameter strands for pretensioned concrete girders is advantageous when increasing the flexural capacity and extending girder spans. The current codes have no design guidelines for predicting ...

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