Simplified Shear Design of Structural Concrete Members: Appendixes (2005) / Chapter Skim
Currently Skimming:
Pages 81-104
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 81... ...
C-1 Appendix C: Shear Database This appendix presents the shear database (SDB)
|
From page 82... ...
C-2 beams had stirrups while 1059 of them did not. The vast majority of the tests (1268 of 1444, or about 90 %)
|
From page 83... ...
C-3 C.2 Effect of Parameters The database was used to investigate the influence of several major parameters on shear strength. In this section, the shear strength, )
|
From page 84... ...
C-4 concrete strength. In most codes of practice, shear strength is proportional to the concrete strength to an exponent between 0.25 and 0.5.
|
From page 85... ...
C-5 ratio can not be clearly defined for members subjected to uniformly distributed load, and thus it is more appropriate to use the moment to shear ratio in design code expressions than an a/d ratio. C.2.1.4 Longitudinal Reinforcement Ratio Fig.
|
From page 86... ...
C-6 C.2.2.2 Effective Depth Fig. C-16 shows shear strengths plotted versus the effective depths.
|
From page 87... ...
C-7 have shear strengths smaller than that value. The shear strength limit (without Vp)
|
From page 88... ...
C-8 From Fig. C-24 it can be seen that the shear span to depth ratio (moment-shear ratio)
|
From page 89... ...
C-9 C.2.4.2 Effective Depth Fig. C-28 shows the shear strengths of PC members with shear reinforcement plotted versus their effective depths.
|
From page 90... ...
C-10 Table C-1 List of Parameters Collected and Evaluated in Shear Database Note) This table is to illustrate the details of information compiled into SDB.
|
From page 91... ...
C-11 Beam Shapes Rect. 95% I shape 1% Tee 4% Stirrups w ith stirrup 27% without stirrup 73% Support & Loading SS-PL 87% SSUDL 6% SE-PL 7% Fig.
|
From page 92... ...
C-12 29 77 17 17 31 10 13 17 35 48 25 17 6 7 2 4 4 3 10 1 10 2 2 3 5 3 41 0 20 40 60 80 100 120 f'c (ksi) N um be r o f T es ts d<60 in d<50 in d<40 in d<30 in d<20 in d<10 in 8 9 10 11 12 13 14 15 16 17 18 25 10 2 100 9 40 16 8 19 20 6 48 5 311 4 57 2 15 3 22 9 57 5 7 7 0 50 100 150 200 Height, h (in)
|
From page 93... ...
C-13 Beam Shapes Rect. 22% I shape 72% Tee 6% Stirrups w ith stirrup 38% without stirrup 62% Support & Loading SS-PL 97% SSUDL 1% SE-PL 1% SEUDL 1% Fig.
|
From page 94... ...
C-14 7 5 5 28 23 7 9 4 2 2 2 2 2 2 1 24 2 6 0 10 20 30 40 50 60 f'c (ksi) N um be r o f T es ts d<70 in d<50 in d<40 in d<30 in d<20 in d<10 in 8 9 10 11 12 13 14 15 16 17 18 36 2 12 6 7 24 4 224 2 6 4 1 2 6 2 7 2 2 0 10 20 30 40 50 60 Height, h (in)
|
From page 95... ...
C-15 0 500 1000 1500 2000 2500 3000 0 5000 10000 15000 20000 f'c (psi)
|
From page 96... ...
C-16 0 100 200 300 400 500 600 700 0 20 40 60 80 100 120 d (in)
|
From page 97... ...
C-17 0 100 200 300 400 500 600 700 0 2 4 6 8 rhol (%)
|
From page 98... ...
C-18 0 200 400 600 800 1000 1200 1400 1600 1800 0 10 20 30 40 50 d (in)
|
From page 99... ...
C-19 0 200 400 600 800 1000 1200 1400 1600 1800 0 2 4 6 8 10 12 rhol (%)
|
From page 100... ...
C-20 0 200 400 600 800 1000 1200 1400 0 3000 6000 9000 12000 15000 f'c (psi)
|
From page 101... ...
C-21 0 500 1000 1500 2000 2500 3000 3500 0 2 4 6 8 a/d vu ,te st (p si ) rhol < 0.1%, f 'c < 6000 psi rhol < 0.1%, f 'c > 6000 psi 0.1 % < rhol < 3 %, f 'c < 6000 psi 0.1 % < rhol < 3 %, f 'c > 6000 psi rhol > 3 %, f 'c < 6000 psi rhol > 3 %, f 'c > 6000 psi 0 200 400 600 800 1000 1200 1400 0 2 4 6 8 a/d vu ,te st (p si )
|
From page 102... ...
C-22 0 500 1000 1500 2000 2500 0 5000 10000 15000 f'c (psi)
|
From page 103... ...
C-23 0 500 1000 1500 2000 2500 0 2 4 6 8 a/d vu ,te st (p si ) rhovfvy < 100 psi 100 psi < rhovfvy < 150 psi 150 psi < rhovfvy < 250 psi 250 psi < rhovfvy < 500 psi 500 psi < rhovfvy < 1000 psi rhovfvy > 1000 psi Fig.
|
From page 104... ...
C-24 0 500 1000 1500 2000 2500 0 500 1000 1500 2000 2500 rhovfvy (psi)
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.