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Concrete Design Modules

Concrete Design Modules

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Concrete Design Modules

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The programs in this section provide analysis and design for structural elements made of concrete.

 

 

Code References

 

Program modules for CONCRETE design are designed to be in conformance with the ACI 318-02 Edition. Concrete design is performed using "Ultimate Strength" analysis & design procedures using factored loads and reduced allowable capacities.

 

Design procedures for concrete design follow ACI 318-02.
IBC 2003 Section 1901.2 references ACI 318 for the design of concrete.
1997 UBC Chapter 19 Division II references ACI-318 for the design of concrete.
2003 NFPA 5000 Section 35.2.7.2 references  ACI-318 for the design of concrete.
Load combinations are according to ACI 318-02 Section C.2

 

 

Multi Span Concrete Beam

Multi Span Concrete Beam allows design of up to eight spans on one calculation sheet. Two modes are available; all spans can be simply supported with optional cantilevers or all are continuous with optional cantilevers and end fixities (pin,fix,free). Dead, live, and short term point, moment, and uniform/trapezoidal loads in any combination may be applied. Alternate span live loading is easily defined, and you can specify top & bottom reinforcing at left, center, and right positions for each span. Actual and allowable moments and shears, reactions, deflections, and shear stirrup spacings at sixth points along each span are given.

 

Rectangular Concrete Beam Design

Rectangular Concrete Beam Design provides more detailed and flexible design options for both rectangular and tee shaped beams. Items available for user input are seismic/wind factors, dead, live, and short term loads, a flange on one or both sides, effective slab width, stirrup size, live/short term load combinations, and fixed or pinned end combinations. The center, left, and right sides of the beam can have two rebar sets for both tension and compression reinforcing. Providing detailed strain analysis results to verify moment capacities and shear stirrup spacing requirements at 1/7 points along the beam.

 

Rectangular Concrete Column

Rectangular Concrete Column determines allowable axial capacities for columns subjected to dead, live, and short term axial loads with bending about one axis. Items considered are unbraced lengths, side sway, effective length factors, and applied point, uniform, and moment loads. Slenderness is evaluated and the necessary moment magnification factors applied to the maximum resultant eccentricities. Reinforcing can be specified in up to five layer locations, and an exact section analysis based upon internal strains is performed to determine allowable capacity for ACI load combinations 9-1, 9-2 and 9-3.

 

Circular Concrete Column

Circular Concrete Column determines allowable axial capacities for columns subjected to dead, live, and short term axial loads with bending about one axis. Items considered are unbraced lengths, side sway, effective length factors, and applied point, uniform, and moment loads. Slenderness is evaluated and the necessary moment magnification factors applied to the maximum resultant eccentricities.

 

Multi Story Shear Wall

Multi Story Shear Wall allows the user to specify a single wall up to five stories high, each portion with different lengths, thicknesses, and materials. Ten lateral and ten vertical dead, live, and short term point loads can be entered, along with lateral weight factors, concrete weight, live/short term combinations, and minimum reinforcing. Total shear, moment, and reinforcing requirements are given for each level with short term loads applied in each direction. A complete footing design is also provided.

 

Tilt-Up Wall Panel

Tilt-Up Wall Panel gives you extensive analysis capabilities for this popular construction method. You may choose between five common analysis methods which consider deflections, moments, and P-Delta effects. You may apply concentrated or partial length lateral loads to design jambs at openings, and include the effect of negative parapet moment, any degree of base fixity (for dock high walls), and eccentric and concentric vertical loads. The program performs factored and service load calculations to find maximum moments and deflections for any design method. All methods consider P-Delta effects, give detailed section property and cracking data, and give simultaneous analysis results for seismic and wind loading's.

 

Square Footing Pad Design

Square Footing Pad Design is a workhorse program that provides design for up to six footing per sheet. In addition to dead, live, and short term loads, you may enter seismic zone, overburden, and column size (for 2-way shear). Soil bearing increases for short term loads and for greater depth and width can also be used. Each footing is designed for moment, one-way shear, and punching shear. Reinforcing options for #4 through #10 bars are listed.

 

General Footing Design

General Footing Design provides detailed uniaxial and biaxial analysis of general rectangular concrete footings. Dead, live, and short term non-concentric axial loads, moments, and shears can be applied about each axis. Short term soil pressure increases, overburden, and column dimensions can be entered. Each recalculation solves for static and short term soil pressures, stability ratios, and factored load moments, one-way shear, and punching shear. The biaxial analysis uses skew bending theory correlated with Esling's studies for pressure under non-tensile sections.

 

Combined Footing Design

Combined Footing Design allows two independent columns to apply axial, shear and moment loading's along the center line of a rectangular footing. Each column has its own dead, live, and short term load, dimensions, and location. The footing may also have applied overburden, duration of load factor, minimum steel, and seismic/wind factors. Each recalculation evaluates static and short term service soil pressure, stability ratios, factored load moments, one-way shear, punching shear, and reinforcing requirements for all ACI load combinations.

 

Rebar Embedment length Calculation

Rebar Embedment length calculates the required straight tension, straight compression, and hooked embedment length requirements for reinforcing steel in concrete using the various modification factors allowed by ACI 318-02.