Design Examples


Author: StructurePoint (SP)

Year: 2017

Pages: 64

The two design procedures shown in ACI 318-14: Direct Design Method (DDM) and the Equivalent Frame Method (EFM) are illustrated in detail to analyze and design two-way flat plate system. The hand solution from EFM is also used for a detailed comparison with the analysis and design results of the engineering software program spSlab including detailed deflection calculations.


The Equivalent Frame Method (EFM) presented in ACI 318-14 is illustrated in detail in this example to analyze and design two-way flat slab with drop panels system. The EFM solution is also used for a detailed comparison with the analysis and design results of the engineering software program spSlab. This example highlights code based selection of drop panel dimensions, analysis process of non-prismatic slab with drop panels, the crucial role of drop panels in resisting two-way shear at columns, and detailed deflection calculations.


Author: StructurePoint (SP)

Year: 2017

Pages: 49

The Equivalent Frame Method (EFM) presented in ACI 318-14 is illustrated in detail in this example to analyze and design two-way floor slab with beams. The EFM solution is also used for a detailed comparison with the analysis and design results of the engineering software program spSlab. This example highlights the slab interaction with the longitudinal and transverse beams and their effect on the system flexural and torsional stiffness including detailed deflection calculations.


The Equivalent Frame Method (EFM) presented in ACI 318-14 is illustrated to analyze and design two-way waffle slab system. The EFM solution is also used for a detailed comparison with the analysis and design results of the engineering software program spSlab. This example highlights code based selection of rib and drop head dimensions, analysis process of non-prismatic slab due to the presence of longitudinal and transverse ribs and drop heads, two-way shear check for waffle slabs, and detailed deflection calculations.


Author: StructurePoint (SP)

Year: 2017

Pages: 92

The analysis and design of one-way slab, one-way joist, interior beam, and exterior beam are shown in this example. The hand solution is used for a detailed comparison with the analysis and design results of the engineering software program spBeam.


Author: StructurePoint (SP)

Year: 2018

Pages: 34

Moment redistribution is used to reduce total reinforcement required and this example will illustrate the extent of redistribution of bending moments and the corresponding reduction of steel area achievable. Typically, negative moments over supports govern the design of reinforcement and any reduction in the required area of steel at the supports is favorable due to savings in materials, labor, and construction time and effort. The hand solution is used for a detailed comparison with the analysis and design results of the engineering software program spBeam.


Author: StructurePoint (SP)

Year: 2018

Pages: 34

Moment redistribution is used to reduce total reinforcement required and this example will illustrate the extent of redistribution of bending moments and the corresponding reduction of steel area achievable. Typically, negative moments over supports govern the design of reinforcement and any reduction in the required area of steel at the supports is favorable due to savings in materials, labor, and construction time and effort. The hand solution is used for a detailed comparison with the analysis and design results of the engineering software program spBeam.


Author: StructurePoint (SP)

Year: 2018

Pages: 44

A structural reinforced concrete continuous beam at an intermediate building floor is analyzed and designed (Including structural analysis, flexural design, shear design, and deflection checks) and the results of hand calculations are then compared with numerical analysis results obtained from the spBeam engineering software program. Additionally, different boundary conditions are selected to demonstrate and explore in detail the actual interaction between beams and supporting members. Similar evaluation is performed using computer software to reflect recommended modeling procedures in spBeam to obtain the most accurate results.


Author: StructurePoint (SP)

Year: 2017

Pages: 29

The interaction diagram for a square tied concrete column about the x-axis is developed based on the provisions of the American code (ACI 318-14). The Seven control points on the interaction diagram are determined and compared with the calculated values in the Reference and with exact values from the complete interaction diagram generated by spColumn engineering software program from StructurePoint.


Author: StructurePoint (SP)

Year: 2017

Pages: 27

The interaction diagram for a square tied concrete column about the x-axis is developed based on the provisions of the Canadian code (CSA 23.3-14). The Seven control points on the interaction diagram are determined and compared with the calculated values in the Reference and with exact values from the complete interaction diagram generated by spColumn engineering software program from StructurePoint.


Author: StructurePoint (SP)

Year: 2017

Pages: 27

The interaction diagram for the square tied concrete column about the x-axis is developed based on the provisions of the Canadian code (CSA 23.3-94). The Seven control points on the interaction diagram are determined and compared with the calculated values in the Reference and with exact values from the complete interaction diagram generated by spColumn engineering software program from StructurePoint.


Slenderness effect for columns in a sway frame is evaluated by designing a first story exterior column in multistory reinforced concrete building (22" x 22" column section). The calculated results are compared with the values presented in the Reference and with exact values from spColumn engineering software program from StructurePoint.


Slenderness effect for columns in a sway frame is evaluated by designing a first story exterior column in multistory reinforced concrete building (18" x 18" column section). The calculated results are compared with the values presented in the Reference and with exact values from spColumn engineering software program from StructurePoint.


The P-M interaction diagram for a dumbbell concrete shear wall with unsymmetrical boundary elements is investigated. The T-shaped formation comprises the basement retaining wall (Tee flange), the stem serving as the shear wall (Tee web), and the first building column. The differences between the interaction diagram for irregular and regular wall sections are highlighted. The results obtained from the hand calculations were compared with the complete interaction diagram generated by spColumn engineering software program.


Author: StructurePoint (SP)

Year: 2018

Pages: 27

The analysis and design of reinforced concrete shear wall is shown in this example. The hand solution is used for a detailed comparison with the analysis and design results of the engineering software program spWall.


This example illustrates the analysis and design of precast reinforced concrete bearing wall panel in a single-story building. The panel provides load resistance for gravity loads from double tee roof framing and applied lateral wind loads. Alternative Design Method for Out-of-Plane Slender Wall in ACI 318 is used to demonstrate hand calculation procedures and compare with finite element analysis results from engineering software program spWall. The impact of cracking on stiffness reduction represented by the magnitude of cracked and effective moment of inertia is highlighted in the analysis results including forces and deflections.


This example illustrates the analysis and design of precast reinforced concrete bearing wall panel in a single-story building. The panel provides load resistance for gravity loads from double tee roof framing and applied lateral wind loads. Alternative Method for Out-of-Plane Slender Wall Analysis in ACI 318 is used to demonstrate hand calculation procedures and compare with finite element analysis results from engineering software program spWall. The impact of cracking on stiffness reduction represented by the magnitude of cracked and effective moment of inertia is highlighted in the analysis results including forces and deflections.


Author: StructurePoint (SP)

Year: 2017

Pages: 18

Tilt-up is form of construction with increasing popularity owing to its flexibility and economics. Tilt-up concrete is essentially a precast concrete that is site cast instead of traditional factory cast concrete members. A structural reinforced concrete tilt-up wall panel in a single-story warehouse (big-box) building provides gravity and lateral load resistance for applied loads from three roof joists bearing in wall pockets in addition to the wind. The assumed tilt-up wall panel section and reinforcement are investigated after analysis to verify suitability for the applied loads then compared with numerical analysis results obtained from spWall engineering software program from StructurePoint.


Tilt-up is form of construction with increasing popularity owing to its flexibility and economics. Tilt-up concrete is essentially a precast concrete that is site cast instead of traditional factory cast concrete members. A structural reinforced concrete tilt-up wall panel with opening in a single-story warehouse (big-box) building provides gravity and lateral load resistance for applied loads from three roof joists bearing in wall pockets in addition to wind load. The assumed tilt-up wall panel section and reinforcement are investigated after analysis to verify suitability for the applied loads then compared with numerical analysis results obtained from spWall engineering software program from StructurePoint. Additionally, different modeling and analysis techniques using spWall engineering software program to investigate and design tilt-up wall panels with openings are discussed.


The analysis and design of reinforced concrete shear wall footing (strip footing) is shown in this example. The hand solution is used for a detailed comparison with the analysis and design results of the engineering software program spMats using the Finite Element Analysis (FEA) method.


The analysis and design of reinforced concrete combined footing is shown in this example. The hand solution is used for a detailed comparison with the analysis and design results of the engineering software program spMats using the Finite Element Analysis (FEA) method.