What is the maximum allowable height for a 16x16 inch filled CMU pier?

The maximum allowable height for a 16x16 inch filled concrete masonry unit (CMU) pier is determined by various factors, including the loaded conditions, the strength of the material, and safety codes in place. A filled CMU pier refers to a concrete block unit that has been filled with concrete or mortar for enhanced structural integrity.

When evaluating height limits, design codes specify the maximum height based on the cross-sectional area and the compressive strength of the filled CMU. A standard code provides parameters that typically establish a maximum allowable height for piers of specified dimensions to ensure structural stability and performance under load.

In the context of a 16x16 inch filled CMU pier, the calculation involves considerations such as the compressive strength of the material used and the effective area of support. This height ensures that the pier can safely carry the intended loads without risk of failure due to buckling or other forms of structural distress.

The specified height limit of 160 inches for this type of pier reflects a balance between safety and performance, adhering to standard building codes. This ensures that the pier will function effectively while maintaining the necessary safety factors. Various other options represent heights that exceed the code limits, which could compromise the integrity and safety of the structure.