PRODUCT LOAD TABLES - Coreslab Structures · As the concrete sets, it bonds to the tensioned steel. When the concrete reaches a specified strength, the strands are released from the

PRODUCT LOAD TABLES

1

Under service loads, the bottom of the beam will develop hairline cracks.

Ordinary Concrete Beam

Even without a load, the ordinary concrete beam must carry its own considerable weight. This leaves only a portion of its strength available to resist added loads.

The internal upward force along the length of the beam counteracts the external service loads applied to the member.

WHAT IS PRECAST/PRESTRESSED CONCRETE?

WHY USE PRECAST/PRESTRESSED CONCRETE?

Prestressed Concrete Beam

Prestressed or pretensioned before it leaves the plant, a slight arch or camber is noticeable. Energy is stored in the unit by the action of the highly tensioned steel which places a high compression in the lower portion of the member. An internal upward force is thereby created which in effect relieves the beam of having to carry its own weight.

PRECAST/PRESTRESSED CONCRETE is an architectural and structural material possessing great strength. Specifically, PRESTRESSED CONCRETE has unique characteristics that allow pre-determined, engineered stresses to be placed in members to counteract stresses that occur when the unit is subjected to service loads. This is accomplished by combining the best properties of two quality materials: high strength concrete for compression and high tensile strength steel strands for tension.

Actually, prestressing is quite simple. High tensile strands are stretched between abutments at each end of long casting beds. Concrete is then poured into the forms encasing the strands. As the concrete sets, it bonds to the tensioned steel. When the concrete reaches a specified strength, the strands are released from the abutments. This compresses the concrete, arches the members, and creates a built-in resistance to service loads.

Rapid Construction Conserves Energy Versatility of Design

Precast/Prestressed concreteconstruction gets the job donesooner. The manufacturing ofprecast/prestressed membersand site preparation can proceedsimultaneously. Early occupancyprovides obvious benefits to theclient.

Precast/Prestressed concretecomponents can improve thethermal storage potential of abuilding. If effectively conservesenergy required for heating andcooling.

Precast/Prestressed concrete buildings are not only functional but beautiful as well. Numerous panel configuration design possibilities are available.

Resists Fire Column-Free Long Spans Maintenance Free

Durability and fire resistancemean low insurance premiumsand greater personnel safety.Those who investigate life cyclecosting will appreciateprestressed concrete’s excellentfire resistance characteristics.

With fewer columns and moreusable floor space, prestressedconcrete provides greaterfreedom for space utilization.

Precast/Prestressed concrete does not require painting and is free from corrosion. Its durability extends building life.

2

TOTAL STRUCTURES

Desert Ridge Corporate Center Parking Phoenix, Arizona

Integrated Medical Services Avondale, Arizona

North Mountain Integrated Medical Services Phoenix, Arizona

Granite Street Parking Structure Prescott, Arizona

Harrah’s Entertainment Corporate Office Las Vegas, Nevada

3

The following pages contain load tables for the standard products available from Coreslab Structures (ARIZ) Inc. Load capacities are in conformance with the American Concrete Institute "Building Code Requirements for Structural Concrete (ACI 318-05)". However, values given in the tables are intended for preliminary member selections, not final designs. These values assume that the safe superimposed load is composed of 60% dead load and 40% live load. In some cases, loads in excess of those shown can be accommodated by modifying the general parameters such as concrete strength and/or reinforcing patterns.

MATERIAL PROPERTIES Concrete:

Compressive Strength Final (28-day) = 5000 psi (Precast)

= 3000 psi (Topping) At Prestress Release = 3500 to 4000 psi when

maximum load is used. Otherwise a lower strength may be sufficient.

Normal Weight = 150 pcf Modulus of Elasticity = W 33

FLEXURAL MEMBERS In general, maximum spans shown for the various prestressing conditions will result in an upward camber under dead load, after loss of prestress has occurred. Roof deflection, however, should always be checked. It is recommended that a positive slope always be provided for roofs. Whenever span-to-depth ratio exceeds 30 for double tees a positive roof slope is essential to preclude ponding. Also, see the 2006 Edition “International Building Code” IBC.

Topping Slab Design by Others For composite members, reinforcement (i.e., welded wire fabric or reinforcing bar) is generally required for the structural design of the topping slab. The Engineer of Record should furnish this design.

Steel: Prestressing Strand:

Sizes: 1/2" Diameter Ultimate Strength = 270,000 psi Initial Tension = 70 to 75% of Ult. Strength Modulus of Elasticity = 28,000,000 psi

Reinforcing Steel: Bar Sizes: 4, 5 and 6 are A706, Grade 60 Bar Sizes: 7 and larger are A615, Grade 60

The required depth of a beam or slab is influenced by the ratio of live load to total load. When this ratio is high, deeper sections may be needed.

PREFACE TO PRODUCT LOAD TABLES

DESIGN RECOMMENDATIONS Maximum Bottom Range of Maximum Precast Tension Stress Span-To-Depth Ratio

Double Tee Floor Slabs 12 cf ' 25 to 30

Double Tee Roof Slabs 12 cf ' 35 to 40

Inverted Tee or ELL Beams 6 cf ' 10 to 20

Hollow Core Slabs 6 cf ' 45 to 50

GENERAL NOTATION Width of Precast Depth of Precast Description Section (ft) Section (in) of Section 10DT24

1.5

DT = Double Tee Slab IT = Inverted Tee Beam LB = ELL Beam

4

cf '

DOUBLE TEES FOR FLOOR AND ROOF

Allowable Superimposed Service Loads, Pounds per Square Foot Non-Composite Span (ft) 50 52 54 56 58 60 62 64 66 68 70 72 Load (psf) 87 79 73 67 62 57 52 48 45 41 38 36 Composite (3¼" Topping) Span (ft) 36 38 40 42 44 46 48 50 52 54 56 58 60 Load (psf) 201 177 158 138 121 104 93 80 68 56 48 40 32

Allowable Superimposed Service Loads, Pounds per Square Foot Non-Composite Span (ft) 56 58 60 62 64 66 68 70 72 74 76 78 80 Load (psf) 88 81 75 69 64 60 56 52 48 45 42 39 32 Composite (3¼" Topping) Span (ft) 40 42 44 46 48 50 52 54 56 58 60 62 64 66 Load (psf) 210 186 166 148 132 119 108 96 88 78 68 58 50 42

Allowable Superimposed Service Loads, Pounds per Square Foot Non-Composite Span (ft) 68 70 72 74 76 78 80 82 84 86 88 90 Load (psf) 70 66 61 57 53 50 47 44 41 38 36 34 Composite (3¼" Topping) Span (ft) 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Load (psf) 206 188 170 151 136 123 114 102 92 84 78 71 64 57 49

2"

6.25"

5

Section Properties

Non-Composite Composite

A (in2) 475 763 1 (in4) 24799 37247 yb (in) 17.38 20.49 St (in3) 37.45 *10617 Sb (in3) 1427 1818 Normal Weight 49 psf 90 psf (150 pcf) 495 plf 901 plf * At top of precast

3.25" Topping 6.25"

4.42"

24"

22"

2"

10'-0" 5'-0"2'-6" 2'-6"

2" R

24" DOUBLE TEES—10' WIDE

28" DOUBLE TEES—10' WIDESection

Properties Non-

Composite Composite A (in2) 509

6.25"

797 1 (in4) 36704 53685 yb (in) 20.29 23.54 St (in3) 4639 *12026 Sb (in3) 1827 2281 Normal Weight 53 psf 94 psf (150 pcf) 530 plf 936 plf * At top of precast

6.25"

10'-0" 2'-6"

4.08"

5'-0" 2'-6"

28"

26"

2" 3.25" Topping

Section Properties

Non-Composite Composite

A (in2) 540 828 1 (in4) 51120 73362 yb (in) 22.81 26.57 St (in3) 5560 *13508 Sb (in3) 2242 2761 Normal Weight 56 psf 97 psf (150 pcf) 562 plf 969 plf * At top of precast

32" DOUBLE TEES—10' WIDE

32"

30"

3.75"

10'-0"

5'-0" 2'-6" 2'-6"3.25" Topping

2" R

2" R

Allowable Superimposed Service Loads, Pounds per Square Foot Non-Composite Span (ft) 60 62 64 66 68 70 72 74 76 78 80 82 84 Load (psf) 94 88 83 76 70 64 58 53 48 44 39 35 32 Composite (3¼" Topping) Span (ft) 42 44 46 48 50 52 54 56 58 60 62 64 66 Load (psf) 194 174 154 134 124 107 94 82 70 62 53 49 42

5.75"

28" DOUBLE TEES—12' WIDESection

Properties Non-

Composite

Contact Coreslab Structures for allowable loading conditions with these deep double tee sections.

6"

6

Composite A (in2) 535 865.926 1 (in4) 36580.04 52230.87 yb (in) 20.9576 24.27 St (in3) 5194.28 *14002.87 Sb (in3) 1745.43 2152.08 Normal Weight 46 psf 75 psf (150 pcf) * At top of precast

3.75"

12'-0" 6'-0" 3'-0" 3'-0"

3.25" Topping

28"

26"

2"

50" DOUBLE TEES—8' WIDE8'-0"

4'-0" 2'-0"2'-0" Section Properties Non-CompositeA (in2) 960

50"

48"

2"

1 (in4) 22500 yb (in) 30.6 St (in3) 11634 Sb (in3) 7376 Normal Weight 125 psf (150 pcf) 1000 plf

10" No Topping

PRESTRESSED INVERTED TEE BEAMS

Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 20 22 24 26 28 30 32 34 36 38 40 26IT23 12.0 9.9 8.2 7.0 5.9 5.1 4.5 3.9 3.4 26IT27 15.0 13.0 10.8 9.2 7.8 6.8 5.9 5.2 4.6 4.0 3.6 26IT31 18.9 15.8 13.2 11.1 9.5 8.2 7.2 6.3 5.6 4.9 4.4 26IT35 22.5 19.3 16.2 13.7 11.7 10.1 8.9 7.8 6.9 6.1 5.5 26IT39 27.5 22.6 18.9 16.0 13.7 11.9 10.4 9.1 8.1 7.2 6.4 26IT43 30.4 25.3 21.2 18.0 15.4 13.3 11.6 10.2 9.1 8.1 7.2

Beam Type Depth (in) Weight (plf)26IT23 23 456 26IT27 27 506 26IT31 31 556 26IT35 35 606 26IT39 39 656 26IT43 43 706

Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 20 22 24 26 28 30 32 34 36 38 40 26IT24 6.9 5.6 4.7 3.9 3.3 2.8 26IT28 9.5 7.8 6.5 5.4 4.6 3.9 3.4 26IT32 12.6 10.3 8.6 7.3 6.2 5.3 4.6 4.0 3.5 26IT36 16.2 13.2 11.0 9.3 7.9 6.8 5.9 5.2 4.6 4.0 3.6 26IT40 20.0 16.4 13.8 11.6 9.9 8.6 7.4 6.5 5.7 5.1 4.5 26IT44 24.3 20.0 16.7 14.1 12.1 10.5 9.2 8.0 7.1 6.3 5.6


Composite IT Beam - 12 inch Ledge

Non-Composite IT Beam - 12 inch Ledge

7

PRESTRESSED INVERTED TEE BEAMS


Composite IT Beam - 16 inch Ledge

Non-Composite IT Beam - 16 inch Ledge

Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 20 22 24 26 28 30 32 34 36 38 40 26IT27 15.5 12.9 10.8 9.1 7.8 6.7 5.8 5.1 4.5 4.0 3.6 26IT31 19.4 16.2 13.5 11.5 9.8 8.5 7.4 6.5 5.7 5.1 4.5 26IT35 23.1 19.8 16.5 14.0 12.0 10.4 9.0 7.9 7.0 6.2 5.6 26IT39 27.7 23.7 19.8 16.8 14.4 12.4 10.9 9.5 8.4 7.5 6.7 26IT43 32.0 27.3 22.9 19.4 16.6 14.4 12.6 11.0 9.8 8.7 7.8 26IT47 36.9 31.2 26.1 22.1 19.0 16.4 14.4 12.6 11.2 10.0 8.9


Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 20 22 24 26 28 30 32 34 36 38 40 26IT28 9.3 7.6 6.3 5.3 4.5 3.8 3.3 26IT32 12.6 10.3 8.6 7.2 6.1 5.3 4.5 3.9 3.5 26IT36 16.3 13.4 11.1 9.4 8.0 6.9 6.0 5.2 4.6 4.0 3.6 26IT40 20.0 16.4 13.6 11.5 9.8 8.5 7.4 6.4 5.7 5.0 4.5 26IT44 23.8 19.5 16.3 13.8 11.8 10.2 8.8 7.7 6.8 6.1 5.4 26IT48 27.9 22.9 19.1 16.2 13.9 12.0 10.4 9.1 8.1 7.2 6.4

8

PRESTRESSED ELL BEAMS

Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 20 22 24 26 28 30 32 34 36 38 40 19LB23 5.8 5.3 4.8 4.3 3.8 3.3 2.9 2.4 19LB27 7.5 6.9 6.2 5.6 5.0 4.5 4.1 3.6 3.2 19LB31 8.8 8.1 7.4 6.7 6.1 5.4 4.9 4.5 4.1 3.6 3.2 19LB35 10.5 9.7 8.9 8.1 7.3 6.5 6.0 5.5 5.0 4.5 4.1 19LB39 12.3 11.3 10.4 9.5 8.5 7.6 7.0 6.5 5.9 5.3 4.8 19LB43 14.2 13.1 12.0 10.9 9.8 8.7 8.1 7.5 6.9 6.4 5.8

Beam Type Depth (in) Weight (plf)19LB23 23 375 19LB27 27 425 19LB31 31 475 19LB35 35 525 19LB39 39 575 19LB43 43 625

Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 20 22 24 26 28 30 32 34 36 38 40 19LB24 5.9 5.2 4.5 3.8 3.4 3.0 2.6 19LB28 7.6 6.9 6.2 5.5 4.8 4.2 3.6 3.0 2.4 19LB32 9.2 8.5 7.8 7.0 6.3 5.6 5.0 4.5 3.9 3.4 2.8 19LB36 11.1 10.2 9.4 8.5 7.7 6.8 6.2 5.6 5.0 4.4 3.8 19LB40 13.0 12.0 10.9 9.9 8.8 7.8 7.2 6.5 5.9 5.2 4.6 19LB44 14.9 13.8 12.6 11.5 10.3 9.2 8.5 7.7 7.0 6.3 5.6


Composite ELL Beam - 12 inch Ledge

Non-Composite ELL Beam - 12 inch Ledge

9

PRESTRESSED ELL BEAMS

Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 20 22 24 26 28 30 32 34 36 38 40 19LB28 7.7 7.1 6.4 5.8 5.1 4.5 3.8 3.2 19LB32 9.4 8.7 8.0 7.3 6.6 5.9 5.1 4.4 3.6 2.8 19LB36 11.6 10.7 9.8 8.9 8.0 7.1 6.4 5.8 5.1 4.4 3.8 19LB40 13.5 12.4 11.4 10.3 9.3 8.2 7.5 6.8 6.2 5.5 4.8 19LB44 15.6 14.4 13.1 11.9 10.6 9.4 8.7 7.9 7.2 6.5 5.8 19LB48 17.6 16.2 14.8 13.4 12.0 10.6 9.8 9.0 8.2 7.4 6.6


Composite ELL Beam - 16 inch Ledge


Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 20 22 24 26 28 30 32 34 36 38 40 19LB27 7.4 6.8 6.1 5.4 4.8 4.3 3.9 3.5 3.0 19LB31 9.1 8.3 7.6 6.9 6.2 5.6 5.1 4.5 3.9 3.3 19LB35 10.9 10.1 9.2 8.4 7.6 6.8 6.2 5.7 5.2 4.7 4.2 19LB39 12.8 11.8 10.8 9.8 8.8 7.9 7.3 6.8 6.2 5.7 5.2 19LB43 14.8 13.6 12.4 11.3 10.1 9.0 8.4 7.8 7.2 6.6 6.0 19LB47 16.7 15.3 14.0 12.7 11.4 10.1 9.4 8.7 8.0 7.3 6.6

Non-Composite ELL Beam - 16 inch Ledge

10

PRESTRESSED JUMBO INVERTED TEE BEAMS

Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 28 30 32 34 36 38 40 42 44 46 48 32IT23 6.0 5.2 4.5 3.8 3.4 3.0 2.6 2.2 1.9 32IT27 9.0 7.9 6.8 5.8 5.2 4.6 4.0 3.4 3.0 2.7 2.4 32IT31 11.4 10.1 8.8 7.6 6.8 6.1 5.3 4.6 4.2 3.8 3.4 32IT35 14.8 13.1 11.4 9.8 8.8 7.9 6.9 6.0 5.4 4.9 4.4 32IT39 18.0 15.9 13.9 11.9 10.7 9.6 8.5 7.4 6.7 6.0 5.4 32IT43 21.4 19.0 16.6 14.2 12.9 11.6 10.3 9.0 8.2 7.4 6.6


Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 28 30 32 34 36 38 40 42 44 46 48 32IT24 5.8 5.0 4.3 3.6 3.2 2.9 2.5 2.2 32IT28 8.6 7.5 6.4 5.4 4.8 4.3 3.7 3.2 2.8 2.5 2.2 32IT32 11.2 9.8 8.5 7.2 6.5 5.8 5.1 4.4 3.9 3.4 3.0 32IT36 14.2 12.6 11.0 9.4 8.5 7.6 6.7 5.8 5.2 4.7 4.2 32IT40 17.6 15.6 13.6 11.6 10.5 9.4 8.3 7.2 6.6 6.0 5.4 32IT44 20.8 18.4 16.1 13.8 12.5 11.2 9.9 8.6 7.8 7.1 6.4


Composite Jumbo IT Beam - 12 inch Ledge

Non-Composite Jumbo IT Beam - 12 inch Ledge

11

PRESTRESSED JUMBO INVERTED TEE BEAMS Non-Composite Jumbo IT Beam - 16 inch Ledge

Composite Jumbo IT Beam - 16 inch Ledge





12

PRESTRESSED JUMBO ELL BEAMS

Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 28 30 32 34 36 38 40 42 44 46 48 25LB24 5.0 4.0 3.8 3.2 2.8 2.5 2.1 1.8 25LB28 7.2 6.3 5.4 4.6 4.1 3.7 3.2 2.8 2.5 2.2 2.0 25LB32 9.4 8.3 7.2 6.2 5.6 5.0 4.4 3.8 3.4 3.1 2.8 25LB36 12.0 10.6 9.2 7.8 7.0 6.3 5.5 4.8 4.3 3.9 3.5 25LB40 14.8 13.0 11.3 9.6 8.7 7.8 6.9 6.0 5.4 4.9 4.4 25LB44 17.0 15.0 13.1 11.2 10.1 9.1 8.0 7.0 6.3 5.6 5.0


Composite Jumbo ELL Beam - 12 inch Ledge


Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 28 30 32 34 36 38 40 42 44 46 48 25LB23 5.4 4.7 4.0 3.4 3.0 2.7 2.3 2.0 25LB27 7.6 6.6 5.7 4.8 4.3 3.9 3.4 3.0 2.6 2.3 2.0 25LB31 10.0 8.8 7.6 6.4 5.7 5.1 4.4 3.8 3.4 3.1 2.8 25LB35 12.4 10.9 9.4 8.0 7.2 6.5 5.7 5.0 4.5 4.0 3.6 25LB39 15.2 13.4 11.7 10.0 9.0 8.1 7.1 6.2 5.6 5.0 4.4 25LB43 17.8 15.8 13.8 11.8 10.7 9.6 8.5 7.4 6.7 6.0 5.4

Non-Composite Jumbo ELL Beam - 12 inch Ledge

13

PRESTRESSED JUMBO ELL BEAMS

Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 28 30 32 34 36 38 40 42 44 46 48 25LB27 7.6 6.6 5.7 4.8 4.3 3.8 3.3 2.8 2.5 2.2 2.0 25LB31 10.0 8.8 7.6 6.4 5.7 5.1 4.4 3.8 3.4 3.1 2.8 25LB35 12.6 11.1 9.6 8.2 7.4 6.6 5.8 5.0 4.5 4.0 3.6 25LB39 15.6 13.8 12.0 10.2 9.2 8.2 7.2 6.2 5.6 5.1 4.6 25LB43 17.8 15.8 13.8 11.8 10.7 9.6 8.5 7.4 6.7 6.0 5.4 25LB47 20.0 17.7 15.4 13.2 11.9 10.6 9.3 8.0 7.4 6.8 6.2


Allowable Superimposed Service Load, Kips per Lineal Foot Span(ft) 28 30 32 34 36 38 40 42 44 46 48 25LB28 7.0 6.1 5.2 4.4 3.9 3.5 3.1 2.6 2.4 2.2 2.0 25LB32 9.2 8.1 7.0 6.0 5.4 4.8 4.2 3.6 3.2 2.9 2.6 25LB36 12.0 10.6 9.2 7.8 7.0 6.3 5.5 4.8 4.3 3.8 3.4 25LB40 14.8 13.0 11.3 9.6 8.7 7.8 6.9 6.0 5.4 4.8 4.2 25LB44 17.0 15.0 13.1 11.2 10.1 9.1 8.0 7.0 6.3 5.6 5.0 25LB48 19.2 17.0 14.8 12.6 11.4 10.3 9.1 8.0 7.2 6.5 5.8


Composite Jumbo ELL Beam - 16 inch Ledge

Non-Composite Jumbo ELL Beam - 16 inch Ledge

14

PRESTRESSED SUPER JUMBO INVERTED TEE BEAMS

Non-Composite Super Jumbo IT Beam - 12 or 16inch Ledge

Composite Super Jumbo IT Beam - 12 or 16 inch Ledge

Beam Type Depth (in) Weight (plf)38SJIT24 24" 775 38SJIT28 28" 875 38SJIT30 30" 925 38SJIT32 32" 975 38SJIT36 36" 1075 38SJIT40 40" 1175

38SJIT44 44" 1333 38SJIT48 48" 1433

ALLOWABLE SUPERIMPOSED SERVICE LOAD, KIPS PER LINEAL FOOT Span(ft) 36 38 40 42 44 46 48 50 52 54 56 58 60 38SJIT24 4.66 4.10 3.65 3.24 2.88 2.58 2.32 2.07 1.80 - - - - 38SJIT28 6.90 6.13 5.50 4.87 4.33 3.90 3.46 3.15 2.86 2.60 - - - 38SJIT30 7.37 6.83 6.02 5.33 4.76 4.25 3.92 3.39 3.06 2.72 2.37 - - 38SJIT32 9.37 8.03 7.25 6.51 5.91 5.30 4.75 4.34 3.93 3.45 3.12 2.82 2.5738SJIT36 12.13 10.86 9.72 8.73 7.87 7.15 6.48 5.97 3.45 5.50 4.47 4.15 3.8338SJIT40 14.81 13.15 11.73 10.58 9.56 8.65 7.80 7.12 6.50 5.95 5.45 4.98 4.59

38SJIT44 16.86 14.95 13.40 11.98 10.82 9.76 8.85 8.05 7.38 6.73 6.17 5.67 5.1738SJIT48 19.22 17.11 15.25 13.68 12.37 11.21 10.15 9.25 8.43 7.73 7.12 6.55 6.00

Beam Type Depth (in) Weight (plf)38SJIT25 25" 800 38SJIT29 29" 900 38SJIT31 31" 950 38SJIT35 35" 1050 38SJIT39 39" 1208

38SJIT43 43" 1308 38SJIT45 45" 1358 38SJIT48 48" 1433

ALLOWABLE SUPERIMPOSED SERVICE LOAD, KIPS PER LINEAL FOOT Span(ft) 36 38 40 42 44 46 48 50 52 54 56 58 60 38SJIT25 6.96 6.70 5.90 5.36 4.82 4.35 3.95 3.65 3.22 3.00 - - - 38SJIT29 9.90 8.85 7.91 7.10 6.36 5.75 5.20 4.75 4.28 3.89 - - - 38SJIT31 11.12 9.92 8.34 7.85 7.30 6.43 5.83 5.29 4.82 4.35 4.02 3.62 - 38SJIT35 13.27 11.80 10.59 9.51 8.57 7.70 6.97 6.41 5.76 5.29 4.89 4.42 - 38SJIT39 15.62 13.62 12.33 11.12 9.98 8.98 8.17 7.50 6.83 6.25 5.70 5.23 -

38SJIT43 18.60 16.10 14.36 12.60 11.49 10.30 9.25 8.51 7.77 7.10 6.43 5.90 - 38SJIT45 20.20 18.13 16.12 13.82 12.48 10.99 9.92 8.98 8.30 7.50 6.96 6.39 - 38SJIT48 22.57 19.90 17.95 16.16 14.30 12.98 11.04 10.07 9.17 8.42 7.72 9.03 -

15

7" 24" 7"

12”, 16", 18", 20", 24" or 28"

28” or 32"

12" or 16"

38"

76" for 3¼" Thick Topping 88" for 4" Thick Topping

3¼"

or 4

"

7" 24" 7"

¾"

13", 17", 19", or 23", or 27" 27", 29" or 32"

12" or 16"

38"

PRESTRESSED SUPER JUMBO ELL BEAMS

Non-Composite Super Jumbo ELL Beam - 12 or 16 inch Ledge

Composite Super Jumbo ELL Beam - 12 or 16 inch Ledge

Beam Type Depth (in) Weight (plf)31SJLB24 24 687 31SJLB28 28 787 31SJLB30 30 837 31SJLB32 32 887 31SJLB36 36 987 31SJLB40 40 1087

31SJLB44 44 1216 31SJLB48 48 1316

ALLOWABLE SUPERIMPOSED SERVICE LOAD, KIPS PER LINEAL FOOT Span(ft) 36 38 40 42 44 46 48 50 52 54 56 58 60 31SJLB24 4.47 3.95 3.50 3.12 2.81 2.51 2.26 2.03 1.84 1.66 1.50 31SJLB28 6.58 5.86 5.22 4.67 4.20 3.79 3.43 3.17 2.82 2.57 2.34 2.13 1.9331SJLB30 7.90 6.98 6.23 5.61 5.05 4.56 4.12 3.76 3.42 3.11 2.86 2.62 2.4031SJLB32 9.01 8.00 7.10 6.45 5.80 5.23 4.76 4.35 3.96 3.62 3.33 3.04 2.7931SJLB36 12.07 10.72 9.56 8.56 7.75 7.00 6.29 5.72 5.21 4.77 4.35 4.00 3.6831SJLB40 14.03 12.46 11.16 10.01 9.05 8.16 7.38 6.72 6.12 5.58 5.15 4.72 4.32

31SJLB44 16.18 14.38 12.85 11.53 10.46 9.43 8.56 7.77 7.10 6.52 5.96 5.46 5.0531SJLB48 18.50 16.37 14.59 13.06 11.88 10.77 9.72 8.88 8.12 7.43 6.82 6.08 5.78

Beam Type Depth (in) Weight (plf)31SJLB20 20 587 31SJLB24 24 687 31SJLB28 28 787 31SJLB32 32 887 31SJLB36 36 987 31SJLB40 40 1087

31SJLB44 44 1216 31SJLB48 48 1316

ALLOWABLE SUPERIMPOSED SERVICE LOAD, KIPS PER LINEAL FOOT Span(ft) 36 38 40 42 44 46 48 50 52 54 56 58 60 31SJLB24 4.00 3.52 3.17 2.84 2.62 7.34 2.07 1.86 1.73 - - - - 31SJLB28 5.83 5.14 4.62 4.14 3.72 3.32 2.97 2.70 2.55 2.35 2.17 2.00 - 31SJLB30 8.12 7.28 6.53 6.14 5.65 5.05 4.28 3.86 3.52 3.24 2.90 2.69 - 31SJLB32 10.30 9.12 8.23 7.38 6.55 5.95 5.44 4.95 4.45 3.65 3.59 3.24 - 31SJLB36 12.65 11.25 10.00 8.85 8.08 7.23 6.55 6.33 5.27 4.74 4.28 3.93 - 31SJLB40 15.32 13.67 12.22 11.00 9.87 8.89 8.00 7.18 6.68 6.14 5.52 5.04 -

31SJLB44 17.67 15.77 14.07 12.67 11.42 10.22 9.28 8.42 7.67 6.97 6.41 5.89 5.4231SJLB48 19.97 17.82 15.92 14.32 12.92 11.67 10.67 9.62 8.33 8.03 7.42 6.88 6.22

16

48.5"

24" 7"

31"

12" or 16"

8", 12", 16 20", 24" or 28"

½"

3¼"

or 4

"

7" 24" 7"

12", 16", 18", 20", 24", or 28"

28” or 32"

12" or

31" 16"

PRODUCT ASSEMBLIES

18

GUIDE SPECIFICATIONS

1. GENERAL 1.01 DESCRIPTION

A. Work Included: These specifications cover precast and precast/prestressed structural concrete construction, including product design not shown on contract drawings, production, transportation, erection, and other related items such as anchorage, bearing pads, storage and protection of precast concrete.

B. Related work specified elsewhere: 1. Cast-in-place concrete. 2. Structural steel. 3. Miscellaneous steel. 4. Waterproofing. 5. Sealants and caulking. 6. Painting. 7. Inserts and fittings to be installed by other trades.

1.02 QUALITY ASSURANCE

A. Producer qualifications: Certified by the PCI (Precast/Prestressed Concrete Institute) Plant Certification Program at the time of bidding. Certification shall be in the product groups and categories reflecting the scope of the project.

B. Erector qualifications: Qualified by the PCI Field Qualification Program and regularly engaged in the erection of structural precast concrete for at least 5 years.

C. Welder qualifications: Qualified within previous 12 months in accordance with AWS D1.1 and AWS D1.4.

D. Testing: In general compliance with testing provisions in PCI MNL-116, Manual for Quality Control for Plants and Production of Precast and Prestressed Concrete Products.

E. Requirements of regulatory agencies: All local codes plus the following specifications, standards and codes are a part of these specifications. 1. ACI 318—Building Code Requirements for Structural

Concrete. 2. AWS D1.1—Structural Welding Code—Steel. 3. AWS D1.4—Structural Welding Code—Reinforcing

Steel. 4. ASTM Specifications—As referred to in Section 2.

Products.

1.03 SUBMITTALS A. Erection drawings: The producer shall prepare and submit to

the general contractor erection drawings for approval. 1. Erection drawings shall be complete and show all

dimensions, connections, member identification marks, and related details necessary to facilitate correct field placement.

2. The general contractor shall be responsible for checking the erection drawings to ensure their conformance with the overall building dimensions and resolving any conflicts between the precast/prestressed concrete work, his work, and that of other trades prior to his approval of the drawings.

3. The producer shall not proceed with production prior to approval of drawings by the general contractor, the architect, and the engineer.

B. Product design criteria: 1. Loadings for design:

a. All dead and live loads as specified on the contract drawings.

b. All other specific member loads, where applicable. c. Initial handling and erection stress limits.

2. As directed in the contract documents, design calculations of products shall be performed by a registered engineer experienced in precast/prestressed concrete design.

3. Design shall be in accordance with the applicable codes. C. Permissible design deviations:

1. Design deviations will be permitted only after the architect/engineer’s written approval. Such deviations may also include connections, inserts, etc., enabling producers to best adapt their procedures. The producer’s proposed design shall be supported by complete design calculations and drawings.

2. Any design deviations shall provide an installation equivalent to the basic intent without incurring additional cost to the owner.

D. Test reports on concrete and other materials upon request.

1.04 PRODUCT STORAGE , HANDLING, AND DELIVERY Precast concrete members shall be lifted and supported during processing, storage, and transporting operations only at the lifting or supporting points, as shown on the erection drawings, and with suitable lifting devices

A. Storage: 1. Store all units off ground. 2. Place stored units so that identification marks are

discernible. 3. Stack so that lifting devices are accessible and

undamaged. B. Handling and Delivery:

1. Transportation, site handling, and erection shall be performed with acceptable equipment and methods, and by qualified personnel.

2. PRODUCTS

2.01 MATERIALS A. Portland cement: ASTM C 150—Type II or III. B. Other cementitious materials:

1. Fly ash or natural pozzolans: ASTM C 618. C. Admixtures:

1. Air-entraining admixtures: ASTM C 260. 2. Water reducing, retarding, accelerating, high range water

reducing admixtures: ASTM C 494 or C 1017. 3. Calcium chloride or admixtures containing chlorides shall

not be used. D. Aggregates: ASTM C 33 or C 330. E. Water: Potable (see ACI 318). F. Reinforcing bars:

1. Deformed billet-steel: ASTM A 615. 2. Deformed low-alloy steel: ASTM A 706.

19

GUIDE SPECIFICATIONS

2.01 MATERIALS (continued) A. Welded wire reinforcement:

1. Welded plain steel: ASTM A 185. 2. Welded deformed steel: ASTM A497.

B. Prestressing strand: Uncoated, 7 wire strand, ASTM A 416—Grade 270.

C. Anchors and inserts: 1. Materials:

a. Structural steel: ASTM A 36. b. Carbon steel plate: ASTM A 283. c. Bolts: ASTM A 307 or A 325. d. Welded headed studs: ASTM A-108. e. Deformed bar anchors: ASTM A 496 or A 706.

2. Finish: a. Shop primer: Manufacturer’s standards. b. Hot dipped galvanized: ASTM A 123. c. Zinc-rich coating: DOD-P-21035, self-curing, one

component, sacrificial. J. Grout:

1. Cement grout: Portland cement, sand, and water sufficient for placement and hydration.

2. Non-shrink grout: Premixed, packaged ferrous or non-ferrous aggregate shrink-resistant grout.

K. Bearing pads: 1. Neoprene: Conform to Division II, Sect. 18 of

AASHTO Standard Specifications for Highway Bridges.

2. Random oriented fiber reinforced: Shall support a compressive stress of 3000 psi with no cracking, splitting or delaminating in the internal portions of the pad.

3. Duck layer reinforced: Conform to Division II, Sect. 18.10.2 of AASHTO Standard Specifications for Highway Bridges or Military Specification MIL-C-882D.

4. Plastic: Multimonomer plastic strips shall be non-leaching and support construction loads with no visible overall expansion.

2.02 CONCRETE MIXES

A. 28-day compressive strength: 5000 psi min. B. Prestress release strength: 3000 psi min. C. Non-prestress stripping strength: 2500 psi min.

2.03 PRODUCTION

A. Production tolerances shall comply with PCI MNL-116. B. Finishes:

1. Standard underside: Resulting from casting against approved forms using good industry practice in cleaning of forms, design of concrete mix, placing and curing. Small surface holes caused by air bubbles, normal color variations, normal form joint marks, and minor chips and spalls shall be tolerated, but no major or unsightly imperfections, honeycomb, or other defects shall be permitted.

2. Standard top: Result of vibrating screed and additional hand finishing at projections. Normal color variations, minor indentations, minor chips and spalls shall be permitted. No major imperfections, honeycomb, or defects shall be permitted.

C. Patching: Shall be acceptable providing the structural adequacy and appearance of the product are not impaired.

D. Openings: Openings shall be located and field drilled or cut by the trade requiring them after the precast/prestressed concrete products have been erected. Openings shall be approved by the architect/engineer and coordinated with the producer before drilling or cutting.

3. FIELD EXECUTION

3.01 ERECTION A. General contractor shall be responsible for:

1. Providing suitable access to the building, proper drainage and firm, level bearing for the hauling and erection equipment to operate under their own power.

2. Providing true, level bearing surfaces on all field placed bearing walls and other field places supporting members.

3. Placement and accurate alignment of anchor bolts, plates or dowels in column footings, grade beams and other field placed supporting members.

4. All shoring, ir required, for composite beams and slabs. B. Installation: Installation of precast/prestressed concrete

shall be performed by the producer or a competent erector. Members shall be lifted by means of suitable lifting devices at points provided by the producer. Temporary shoring and bracing, if necessary, shall comply with producer’s recommendations.

C. Alignment: Members shall be properly aligned and leveled as required by the approved erection drawings. Variations between adjacent members shall be reasonably leveled out by jacking, loading, or any other feasible method as recommended by the producer and acceptable to the architect/engineer.

3.02 FIELD WELDING

Field welding is to be done by certified welders using equipment and materials compatible with the base material. Methods shall be in accordance with AWS D1.1 and AWS D1.4.

3.03 ATTACHMENTS

Subject to approval of the architect/engineer, precast/prestressed concrete products may be drilled or “shot” provided no contact is made with the prestressing steel. Should spalling occur, the repair of the spall shall be the responsibility of the trade doing the drilling or the shooting.

3.04 INSPECTION AND ACCEPTANCE

Final inspection and acceptance of erected precast/prestressed concrete shall be made by the architect/engineer within a reasonable time after the work is completed.

20

Documents

PRODUCT LOAD TABLES - Coreslab Structures · As the concrete sets, it bonds to the tensioned steel. When the concrete reaches a specified strength, the strands are released from the