June Safe Load Tables High strength precast & prestressed concrete lintels

Transcription

1 June 2003 Safe Load Tables High strength precast & prestressed concrete lintels

2 corporate Policy Cast-Crete lintels and sills have been incorporated into structures throughout Florida and other southeastern states for over 45 years to the complete satisfaction of all concerned. We produced in excess of 17 million lintels representing over 100 million lineal feet of product during that period of time. Probably every concrete products producer in America claims to sell quality products at competitive prices, and to back up all orders with superior service. Cast-Crete also has these policies. But we say it this way: 1. QUALITY: Cast-Crete guarantees that every lintel and sill it sells meets or exceeds all known federal, state, and local strength and quality specifications. Should tests prove any failure to meet such specifications, Cast-Crete, at its own expense, will replace IN THE WALL all units supplied to the job. 2. SERVICE: Cast-Crete guarantees delivery as promised on every lintel and sill order on the agreed delivery date. If we fail to perform on any guaranteed delivery, Cast-Crete will pay the customer for any resulting unproductive labor charges. Money talks. We don t claim to be perfect. But if you lose through our failure, you can look to us to pay the bill. 3. GUARANTEE: Cast-Crete s lintels and sills are guaranteed against any and all defects in workmanship and/or materials for the lifetime of the structure into which they are properly installed. PAGE 1

3 Engineering specifications product description High strength precast and prestressed concrete lintels designed to be used unfilled or filled with grout to form a composite reinforced beam using concrete masonry units. Materials f c 8" precast lintels = 3500 psi f'c 8" prestressed, 6" and 12" precast lintels = 6000 psi f'c 4" precast lintels = 3000 psi Grout per ASTM C476 f'g = 3000 psi w/maximum 3/8 inch aggregate and 8 to 11 inch slump. General Notes 1. Provide full mortar head and bed joints. 2. Shore filled lintels as required. 3. Installation of lintel must comply with architectural and/or structural drawings. 4. U-Lintels are manufactured with 5-1/2 inch long notches at ends to accommodate vertical cell reinforcing and grouting. 5. All lintels meet or exceed L/360 vertical deflection, except lintels 17'-4" and longer with a nominal height of 8" meet or exceed L/ Bottom field added to be located at the bottom of lintel cavity. 7. 7/32 inch diameter wire stirrups are welded to the bottom steel for mechanical anchorage. 8. Cast-in-place concrete may be provided in composite lintel in lieu of concrete masonry units. Concrete masonry units (CMU) per ASTM C90 with minimum net area compressive strength = 1900 psi Rebar per ASTM A615 Grade 60 Prestressing strand per ASTM A416 Grade 270 low relaxation 7/32 inch wire per ASTM A510 Mortar per ASTM C270 Type M or S 9. Safe load ratings based on rational design analysis per ACI 318 and ACI Product Approvals: Miami-Dade County, Florida Nos and Florida Certificate of Product Approval No. FL The exterior surface of lintels installed in exterior concrete masonry walls shall have a coating of stucco applied in accordance with ASTM C-926 or other approved coating. 12. Lintels loaded simultaneously with vertical (gravity or uplift) and horizontal (lateral) loads should be checked for the combined loading with the following equation: Applied vertical load + Applied horizontal load < 1.0 Safe vertical load Safe horizontal load Safe load table notes 1. All values based on minimum 4 inch nominal bearing. Exception: Safe loads for unfilled lintels must be reduced by 20% if bearing length is less than 6-1/2 inches. 2. N.R. = Not Rated. 3. Safe loads are superimposed allowable load. 4. Safe loads based on Grade 40 or Grade 60 field. 5. Additional lateral load capacity can be obtained by the designer by providing additional reinforced masonry above the precast lintel. See Reinforced CMU on Page One #7 may be substituted for two #5 s in 8" lintels only. 7. The designer may evaluate concentrated loads from the safe load tables by calculating the maximum resisting moment and shear at d-away from the face of support. 8. For composite lintel heights not shown, use safe load from next lower height. 9. For lintel lengths not shown, use safe load from the next longest length shown. 10. All safe loads in units of pounds per linear foot. 11. All safe loads based on simply supported span. 12. The number in the parenthesis indicates the percent reduction for grade 40 field added. Example: 7'6" lintel Type 8F32-1B safe gravity load =6472 (15) w/15% reduction => 6472 (.85) = 5501 plf PAGE 2

4 reinforcing OVERALL LENGTH TOP STEEL BOTTOM STEEL 8" WIDE PRECAST U-LINTEL 2'-10" Thru 5'-11" Thru 7'-7" Thru 10'-7" Thru 14'-1" Thru 19'-5" Thru 5'-10" 7'-6" 10'-6" 14'-0" 2-7/32" wire 2 - #3 2-7/32" wire 2 - #4 2 - #3 2 - #4 2 - #3 2 - #5 8" WIDE PRESTRESSED U-LINTEL 19'-4" 2-7/32" wire 2-7/16 24'-0" 2-7/32" wire 2-7/16 strand strand and 2 - #4 OVERALL LENGTH TOP STEEL 6" WIDE PRECAST U-LINTEL 3'-6" Thru 5'-10" 2-7/32" wire 2 5'-11" Thru 7'-6" 2-7/32" wire 2 7'-7" Thru 10'-6" 2 - #3 2 10'-7" Thru 17'-4" 2 - #3 2 12" WIDE PRECAST U-LINTEL 3'-6" Thru 7'-6" 2-7/32" wire 2 7'-7" Thru 19'-4" 2 - #3 2 BOTTOM STEEL - #3 - #4 - #4 - #5 - #5 - #5 8" WIDE PRECAST RECESS U-LINTEL 4" WIDE PRECAST SOLID LINTEL 4'-4" Thru 5'-10" 2-7/32" wire 2 - #3 3'-6" Thru 10'-6" 1 - #3 1 - #3 5'-11" Thru 9'-8" 2 - #3 2 - #4 Cross Sections 8" PRECAST 8" RECESS 8" PRESTRESSED 4" SOLID 6" PRECAST 12" PRECAST INSTALLATION OF COMPOSITE U LINTELS Set precast lintel in full joints of mortar and shore as required. Place bottom field on the floor of the lintel cavity, if required. Set additional courses of concrete masonry units to obtain composite height. Place top field. Fill composite lintel with grout. PAGE 3

5 How to read safe load tables TYPE DESIGNATION For a 5'-10 overall length lintel type 8F16 1B/IT: Safe superimposed gravity load = 4360 PLF Safe superimposed uplift load = 2093 PLF Safe superimposed lateral load = 339 PLF Example composite lintel types Reinforced CMU Note: See Safe Load Table Notes #5 for Application PAGE 4

6 Length* Type 8U8 2' 10" (34") PRECAST '-6" (42") PRECAST ' 0" (48") PRECAST ' 6" (54") PRECAST ' 4" (64") PRECAST ' 10" (70") PRECAST ' 6" (78") PRECAST 908 7' 6" (90") PRECAST 743 9' 4" (112") PRECAST ' 6" (126") PRECAST ' 4" (136") PRECAST ' 0" (144") PRECAST ' 4" (160") PRECAST ' 0" (168") PRECAST ' 8" (176") PRESTRESSED N.R. 15' 4" (184") PRESTRESSED N.R. 17' 4" (208") PRESTRESSED N.R. 19' 4" (232") PRESTRESSED N.R. 21' 4" (256") PRESTRESSED N.R. 22' 0" (264") PRESTRESSED N.R. 24' 0" (288") PRESTRESSED N.R. PAGE 5 8 inch Lintel Safe Loads(Lbs/FT) gravity 8F8-0B 8F12-0B 8F16-0B 8F20-0B 8F24-0B 8F28-0B 8F32-0B 8F8-1B 8F12-1B 8F16-1B 8F20-1B 8F24-1B 8F28-1B 8F32-1B (7) (36) 7342 (19) 8733 (19) (19) (45) 6036 (19) 7181 (19) 8328 (20) (37) 8825 (14) (44) 6472 (15) (37) 6390 (47) (38) 4754 (45) * LENGTH = OVERALL LENGTH OF LINTEL (X) = SEE SAFE LOAD TABLE NOTES #12

7 Length* 2' 10" (34") PRECAST 3'-6" (42") PRECAST 4' 0" (48") PRECAST 4' 6" (54") PRECAST 5' 4" (64") PRECAST 5' 10" (70") PRECAST 6' 6" (78") PRECAST 7' 6" (90") PRECAST 9' 4" (112") PRECAST 10' 6" (126") PRECAST 11' 4" (136") PRECAST 12' 0" (144") PRECAST 13' 4" (160") PRECAST 14' 0" (168") PRECAST 14' 8" (176") PRESTRESSED 15' 4" (184") PRESTRESSED 17' 4" (208") PRESTRESSED 19' 4" (232") PRESTRESSED 21' 4" (256") PRESTRESSED 22' 0" (264") PRESTRESSED 24' 0" (288") PRESTRESSED Uplift 8F8-1T 8F12-1T 8F16-1T 8F20-1T 8F24-1T 8F28-1T 8F32-1T Type 8F8-2T 8F12-2T 8F16-2T 8F20-2T 8F24-2T 8F28-2T 8F32-2T (12) (23) (12) 2102 (11) 2571 (10) 3039 (10) 3508 (9) (15) 1471 (15) 1811 (15) 2152 (16) 2494 (15) (15) 1185 (15) 1458 (15) 1732 (15) 2007 (15) (15) 1034 (15) 1272 (15) 1510 (15) 1749 (15) (9) (14) 936 (14) 1151 (15) 1366 (15) 1582 (15) (15) (14) 783 (14) 962 (14) 1141 (14) 1321 (14) (15) (14) 723 (14) 887 (14) 1052 (14) 1218 (14) (8) 1694 (8) 1954 (7) (13) 671 (13) 823 (13) 976 (14) 1129 (14) (8) 1625 (11) 1874 (11) (13) 626 (13) 767 (13) 909 (13) 1052 (13) (8) 1562 (14) 1801 (14) (12) 520 (12) 637 (12) 754 (12) 872 (12) (8) 1268 (14) 1470 (14) (11) 446 (11) 546 (12) 646 (12) 746 (12) (8) 1057 (14) 1225 (14) (11) 393 (11) 480 (11) 567 (11) 654 (11) (7) 903 (13) 1046 (13) (10) 378 (11) 461 (10) 545 (11) 629 (11) (7) 861 (13) 997 (13) (10) 341 (10) 416 (10) 491 (10) 566 (10) (7) 756 (12) 875 (13) 8 inch Lintel (Lbs/FT)Safe Loads 8U8 lateral 8F8 REINF. CMU** N.R N.R N.R N.R N.R N.R N.R * LENGTH = OVERALL LENGTH OF LINTEL (X) = SEE SAFE LOAD TABLE NOTES #12 ** = SEE SAFE LOAD TABLE NOTES #5 PAGE 6

8 8 inch Recess Lintel Safe Loads(Lbs/FT) Length* Type 8RU6 4' 4" (52") PRECAST ' 6" (54") PRECAST ' 8" (68") PRECAST 866 5' 10" (70") PRECAST 810 6' 8" (80") PRECAST 797 7' 6" (90") PRECAST 669 9' 8" (116") PRECAST 411 gravity 8RF6-0B 8RF10-0B 8RF14-0B 8RF18-0B 8RF22-0B 8RF26-0B 8RF30-0B 8RF6-1B 8RF10-1B 8RF14-1B 8RF18-1B 8RF22-1B 8RF26-1B 8RF30-1B (34) 7917 (19) 9311 (19) (10) 8060 (39) 7402 (19) 8706 (19) (32) (19) (48) (47) Length* 4' 4" (52") PRECAST 4' 6" (54") PRECAST 5' 8" (68") PRECAST 5' 10" (70") PRECAST 6' 8" (80") PRECAST 7' 6" (90") PRECAST 9' 8" (116") PRECAST uplift Lateral Type 8RF6-1T 8RF10-1T 8RF14-1T 8RF18-1T 8RF22-1T 8RF26-1T 8RF30-1T 8RU6 8RF6 8RF6-2T 8RF10-2T 8RF14-2T 8RF18-2T 8RF22-2T 8RF26-2T 8RF30-2T (8) 1952 (7) 2442 (6) 2931 (6) (12) 1301(15) 1640(15) 1980(15) 2322(16) REINF. CMU** * LENGTH = OVERALL LENGTH OF LINTEL (X) = SEE SAFE LOAD TABLE NOTES #12 ** = SEE SAFE LOAD TABLE NOTES #5 PAGE 7

9 6 inch lintel (Lbs/FT)Safe Loads gravity Length* Type 6U8 6F8-1B 6F12-1B 6F16-1B 6F20-1B 6F24-1B 6F28-1B 6F32-1B 3' 6" (42") PRECAST ' 0" (48") PRECAST ' 6" (54") PRECAST ' 10" (70") PRECAST (31) 8225 (19) 6' 6" (78") PRECAST ' 6" (90") PRECAST (11) 9' 4" (112") PRECAST ' 6" (126") PRECAST ' 4" (136") PRECAST ' 0" (144") PRECAST ' 4" (160") PRECAST ' 0" (168") PRECAST ' 4" (208") PRECAST N.R uplift Lateral Length* Type 6F8-1T 6F12-1T 6F16-1T 6F20-1T 6F24-1T 6F28-1T 6F32-1T 6U8 6F8 3' 6" (42") PRECAST ' 0" (48") PRECAST ' 6" (54") PRECAST ' 10" (70") PRECAST ' 6" (78") PRECAST ' 6" (90") PRECAST 648 (16) ' 4" (112") PRECAST (5) 1257(5) 1537(5) 1816(4) 2096(3) ' 6" (126") PRECAST (5) 1125 (15) 1375(14) 1625(14) 1875(13) ' 4" (136") PRECAST (5) 983(15) 1210(15) 1439(15) 1669(15) ' 0" (144") PRECAST 454 (7) (5) 885(15) 1090(15) 1296(15) 1502(15) ' 4" (160") PRECAST 402(13) (5) 735(15) 904(15) 1074(15) 1245(15) ' 0" (168") PRECAST 368(13) (5) 675(14) 830(14) 986(15) 1143(15) ' 4" (208") PRECAST 253(12) (4) 475(13) 583(13) 692(13) 801(13) N.R * LENGTH = OVERALL LENGTH OF LINTEL (X) = SEE SAFE LOAD TABLE NOTES #12 ** = SEE SAFE LOAD TABLE NOTES #5 REINF. CMU** PAGE 8

10 12 inch Lintel Safe Loads(Lbs/FT) gravity Length* Type 12U8 12F8-2B 12F12-2B 12F16-2B 12F20-2B 12F24-2B 12F28-2B 12F32-2B 3' 6" (42") PRECAST ' 0" (48") PRECAST ' 6" (54") PRECAST ' 10" (70") PRECAST (11) 6' 6" (78") PRECAST (30) 7' 6" (90") PRECAST (46) 9' 4" (112") PRECAST (40) 10' 6" (126") PRECAST (38) 11' 4" (136") PRECAST (38) 12' 0" (144") PRECAST (39) 13' 4" (160") PRECAST (8) (42) 14' 0" (168") PRECAST (12) (43) 17' 4" (208") PRECAST N.R. 451 (17) 631 (18) 881 (15) 1141 (14) 1428 (14) 1750 (16) 2102 (52) 19' 4" (232") PRECAST N.R. 343 (17) 477 (19) 700 (19) 925 (20) 1152 (20) 1380 (20) 1609 (54) uplift Lateral Length* Type 12F8-2T 12F12-2T 12F16-2T 12F20-2T 12F24-1T 12F28-2T 12F32-2T 12U8 12F8 3' 6" (42") PRECAST ' 0" (48") PRECAST ' 6" (54") PRECAST ' 10" (70") PRECAST ' 6" (78") PRECAST ' 6" (90") PRECAST 1267(14) ' 4" (112") PRECAST 1028 (9) (7) 2600 (8) 3179 (7) 3757 (7) 4335 (6) ' 6" (126") PRECAST 920 (18) (7) 2276(15) 2804(15) 3335(16) 3867(16) ' 4" (136") PRECAST 858 (24) (7) 1978(15) 2436(15) 2896(15) 3357(15) ' 0" (144") PRECAST 814 (27) (7) 1784(15) 2196(15) 2610(15) 3025(15) ' 4" (160") PRECAST 678 (27) (6) 1482(15) 1822(15) 2165(15) 2508(15) ' 0" (168") PRECAST 622 (27) (6) 1362(14) 1675(14) 1989(14) 2304(14) ' 4" (208") PRECAST 434 (25) (6) 962 (13) 1180(13) 1400(13) 1619(13) N.R. 633 (12) ' 4" (232") PRECAST 366 (23) (5) 816 (12) 1000(12) 1185(12) 1370(12) N.R. 534 (17) 127 PAGE 9 * LENGTH = OVERALL LENGTH OF LINTEL (X) = SEE SAFE LOAD TABLE NOTES #12 ** = SEE SAFE LOAD TABLE NOTES #5 REINF. CMU**

11 12 inch recess Lintel (Lbs/FT)Safe Loads gravity Length* Type 12RU6 12RF6-2B 12F10-2B 12RF14-2B 12RF18-2B 12RF22-2B 12RF26-2B 12RF30-2B 4' 4" (52") PRECAST ' 6" (54") PRECAST ' 8" (68") PRECAST (24) 5' 10" (70") PRECAST (29) 6' 8" (80") PRECAST (16) 12573(16) (45) 7' 6" (90") PRECAST (16) 9623 (17) (46) 9' 8" (116") PRECAST (5) (9) 4427 (16) 5417 (17) 6380 (47) uplift Lateral Length* Type 12RF-2T 12RF10-2T 12RF14-2T 12RF18-2T 12RF22-2T 12RF26-2T 12RF30-2T 12RU6 12RF6 4' 4" (52") PRECAST ' 6" (54") PRECAST ' 8" (68") PRECAST ' 10" (70") PRECAST ' 8" (80") PRECAST 1020 (4) ' 6" (90") PRECAST 904 (15) ' 8" (116") PRECAST 703 (14) (8) 2897 (8) 3477 (7) 4057 (6) * LENGTH = OVERALL LENGTH OF LINTEL (X) = SEE SAFE LOAD TABLE NOTES #12 ** = SEE SAFE LOAD TABLE NOTES #5 REINF. CMU** 4 inch solid Lintel gravity uplift Lateral gravity uplift Lateral Length* Type 4S8 4S8 4S8 Length* Type 4S8 4S8 4S8 3' 6" (42") PRECAST ' 6" (78") PRECAST ' 0" (48") PRECAST ' 6" (90") PRECAST ' 6" (54") PRECAST ' 4" (112") PRECAST ' 10" (70") PRECAST ' 6" (126") PRECAST * LENGTH = OVERALL LENGTH OF LINTEL (X) = SEE SAFE LOAD TABLE NOTES #12 ** = SEE SAFE LOAD TABLE NOTES #5 PAGE 10

12 products are distributed by the most progressive concrete products companies. Visit us at for the distributor nearest you Post Office Box Tampa, FL (813) Fax (813) Member of 2003 Cast-Crete