Skip to main content

Table 5 Longitudinal reinforcement stress (MPa).

From: An Experimental Study on Bond Strength of Reinforcing Steel in Self-Consolidating Concrete

Section \( {\text{f}}_{\text{c}}^{ '} \) Measureda Moment–curvature method Measureda
Measureda Ave. (M-Φ)b Ave. (M-Φ)c Ave. \( \frac{{{\text{f}}_{s} }}{{\root{{}} \of {{\frac{{{\text{f}}_{\text{c(test)}}^{ '} }}{{{\text{f}}_{\text{c(design)}}^{ '} }}}}}} \) \( \frac{{{\text{f}}_{\text{s}} }}{{\root{ 4} \of {{\frac{{{\text{f}}_{\text{c(test)}}^{ '} }}{{{\text{f}}_{\text{c(design)}}^{ '} }}}}}} \)
NCC          
 1 39.9 341 345 239 284 324 347 353 349
 2 350 328 370
 Top 377 377 238 238 321 321 386 382
NSCC          
 1 47.2 436 424 319 310 403 396 397 410
 2 412 301 388
 Top 349 349 271 271 360 360 327 338
HCC          
 1 66.4 427 413 499 458 554 527 421 417
 2 399 416 500
 Top 509 509 552 552 567 567 519 514
HSCC          
 1 67.2 379 416 429 454 510 526 421 419
 2 452 479 541
 Top 546 546 562 562 624 624 553 549
  1. aStrain (from strain gages) multiplied by modulus of elasticity.
  2. bPopovic, Thorenfeldt, and Collins stress–strain model.
  3. cHognestad stress–strain model (ACI 408R-03 recommended method).