Simplified Design of Reinforced Concrete Buildings , EB This new, fourth edition presents practicing engineers with timesaving analysis, design, and detailing methods of primary framing members of a reinforced concrete building.
All equations, design aids, graphs, and code requirements have been updated to the current codes. Expanded illustrations of the theory and fundamentals and new timesaving design aids were added to include a wider range of concrete strengths.
Also contains a new chapter on sustainable design. PCA - , Prescriptive Design of Exterior Concrete Walls for One- and Two-Family Dwellings , EB This publication provides a simplified approach to the design of concrete footings, foundation walls, and above-grade walls, both load bearing and non-load bearing, intended primarily for use in detached one- and two-family dwellings. Available as PDF with password. Joshua Gilman, P. Cement Industry Annual Yearbook U.
Design Aids. Design Aids are Instrumental in Constructing Concrete Buildings Slightly more than half of all low-rise buildings in the United States are constructed from concrete. These tables should simplify the calculations. Note that this notation is not an industry standard.
The purpose of the sanitation coefficient is to indirectly reduce the stress, and thus the strain, in the steel reinforcing. The result is lower strain in the concrete, and thus less cracking. The ultimate load will be multiplied by SC, which has different values for different calculations: 1. Due to the settlement characteristics of the soil, it is recommended that the bearing pressure be kept as constant as possible for the full tank loading scenario. Assume the density of the fluid in the tank is 63 pcf.
Interior Wall Design Boundary condition case 3 in chapter 2 of PCA-R will be used for determining the applied moments to the tank walls pages thru This moment occurs at the center-bottom of the wall.
Similarly, the My table gives a maximum horizontal moment coefficient of 99, located at the top ends of the wall. The wall will be designed for the concrete to resist the entire shear force. The reinforcing could differ at several locations for a highly efficient design.
The thickness of the wall could also vary, either tapering the wall or stepping the wall. However, for the sake of time, the reinforcing will be kept consistent for the entire wall. One design for the vertical moments, and the other for the horizontal moments. This is a common practice in engineering. Time is not only saved for the design engineer, but also the detailers and construction crew saves time as compared to a more complicated design.
This design philosophy is entitled to change if substantial material savings could be realized and if time permits. A simple demonstration shows that the effect of the interior fluid is significantly greater than the exterior soil and groundwater. The long exterior wall will take the same design as the interior walls.
As a result the wall will be designed for the interior fluid pressure. From page of PCA-R, the maximum vertical moment coefficient is
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