Influence of concrete composition on anchorage bond behavior of prestressing reinforcement

被引：35

作者：

Marti-Vargas, J. R. ^{[1
]}

Garcia-Taengua, E. ^{[1
]}

Serna, P. ^{[1
]}

机构：

[1] Univ Politecn Valencia, Inst Concrete Sci & Technol, ICITECH, Valencia 46022, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2013年 / 48卷

关键词：

Concrete; Cement; Reinforcement; Strand; Bond; Anchorage; Development; Pretensioned; Precast; SELF-CONSOLIDATING CONCRETE; TRANSFER LENGTH; PRETENSIONED CONCRETE; COMPACTING CONCRETE; STRAND; MEMBERS; PERFORMANCE; PREDICTION; SPECIMENS; STRENGTH;

D O I：

10.1016/j.conbuildmat.2013.07.102

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An experimental research addressing the effects of concrete composition and strength on anchorage bond behavior of prestressing reinforcement is presented to clarify the effect of material properties that have appeared contradictory in previous literature. Bond stresses and anchorage lengths have been obtained in twelve concrete mixes made up of different cement contents (C) - 350 to 500 kg/m(3) - and water/cement (w/c) ratios - 0.3 to 0.5 - with compressive strength at 24 h ranging from 24 to 55 MPa. A testing technique based on measuring the prestressing force in specimens with different embedment lengths has been used. The results show that anchorage length increases when w/c increases, more significantly when C is higher; the effect of C reveals different trends based on w/c. The obtained anchorage bond stresses are greater for higher concrete compressive strength, and their average ratio of 1.45 with respect to transmission bond stresses implies a potential bond capacity. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1156 / 1164

页数：9

共 41 条

[1]

ACI Committee, 2011, ACI 318- 11

[2]

AENOR, 1997, 360941997 AENOR UNE

[3]

ASTM, 2010, A416A416M10 ASTM

[4] Pull-out behavior of prestressing strands in steel fiber reinforced concrete [J].

Baran, Eray ;

Akis, Tolga ;

Yesilmen, Seda .

CONSTRUCTION AND BUILDING MATERIALS, 2012, 28 (01) :362-371

[5] Bond Behavior of prestressed Strands in UHPC Part 2: Bond model derivation for the calculation of transfer lengths [J].

Bertram, Guido ;

Hegger, Josef .

BETON- UND STAHLBETONBAU, 2012, 107 (01) :23-31

[6] Dilation behavior of seven-wire prestressing strand - The Hoyer effect [J].

Briere, Vincent ;

Harries, Kent A. ;

Kasan, Jarret ;

Hager, Charles .

CONSTRUCTION AND BUILDING MATERIALS, 2013, 40 :650-658

[7]

Buckner C., 1995, PCI Journal, V40, N˚, P84

[8] Time-dependent evolution of strand transfer length in pretensioned prestressed concrete members [J].

Caro, L. A. ;

Marti-Vargas, J. R. ;

Serna, P. .

MECHANICS OF TIME-DEPENDENT MATERIALS, 2013, 17 (04) :501-527

[9] Prestress losses evaluation in prestressed concrete prismatic specimens [J].

Caro, L. A. ;

Marti-Vargas, J. R. ;

Serna, P. .

ENGINEERING STRUCTURES, 2013, 48 :704-715

[10]

CEN, 2000, 19712000 CEN EN

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