![]() Specifically, in higher seismic design categories, dead load impacts the lateral force on the building structure and the design of the lateral force-resisting system. Required reinforcement spacing #5 vertical reinforcement, 30 psf out-of-plane pressure. For interior walls and partitions, the maximum wall height is typically controlled by flexural tension, which can be calculated as the difference between the axial compressive stress and the bending stress, and then compared to the factored design flexural tension stress: The Masonry Society standard TMS 402-16, Building Code Requirements for Masonry Structures, includes values for the modulus of rupture ( f r) of masonry based on mortar type, the direction of flexural tensile stress, and the masonry type in Table 2.5-3. Use 0.9D for flexural tension to be consistent with other strength load combinations where the dead load is acting as a ‘resistance’ and use 1.6 as a load factor for out-of-plane partition load (live load).”īased on this minimum interior wall and partition horizontal load, a maximum wall height is calculated based on the mortar type specified and the density of the masonry units. ![]() “There is not a direct strength load combination that addresses the partition load. Relative to the partition lateral load, recommendations are provided in The Masonry Society’s (TMS) Strength Design of Masonry publication. Interior walls and partitions that exceed 6 feet (1829 mm) in height, including their finish materials, shall have adequate strength and stiffness to resist the loads to which they are subjected by not less than a horizontal load of 5 psf (0.240 kN/m 2). IBC Section 1607.15 Interior walls and partitions. These lateral loads typically include a minimum horizontal load specific to interior walls and partitions included in IBC Section 1607.15. Unreinforced masonry partition walls are typically designed for lateral forces prescribed under the International Building Code (IBC) and the American Society of Civil Engineers’ Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE 7). In addition, CMU construction provides superior fire resistance and sound transmission performance. In terms of interior partition walls, ungrouted and unreinforced CMU wall construction is often the most cost-effective solution compared to other building systems. However, with rising material costs, 6-inch-wide units are ideal for interior and exterior wall construction depending on wall heights and design loads. The customary units of weight included ounces, pounds, and tons.In terms of structural concrete masonry unit (CMU) construction, the predominant unit sizes are nominally 8-inch and 12-inch-wide units. Weight is a measurement of the heaviness or mass of someone or something. ![]() Very large items like cars and trucks are measured in tons. Pounds are one of the most common units for measuring weight.Ī quart is a unit of capacity that is equivalent to two pints.Ī ton is the largest common unit for measuring weight. Ounces are the smallest common unit of weight in the customary system, used to measure very light items.Ī pint is a unit of liquid capacity. Soft drinks are measured in fluid ounces.Ī gallon is a unit of liquid capacity. ![]() The customary system is the measurement system commonly used in the United States, including: feet, inches, pounds, cups, gallons, etc.Ī fluid ounce is a customary unit for measuring liquid capacity. One cup is equal to eight ounces or about 0.25 liters. The pound would be the best unit to measure the weight of a large dog.Ī cup is a small customary unit for measuring liquid capacity. A large dog would weigh several hundred ounces. Think about which unit would work best for this example. There are three units of weight in the table- ounce, pound, and ton. Which unit of measurement would you use to weigh a large dog? Generally, the size of the object you are measuring can give you a clue as to which unit to use. Use units of volume to find how much space that object takes up. Use units of weight to find how heavy an object is. Think about what you are measuring before you choose a unit. This table is useful as a reference for many of the different ways to measure weight and capacity. To get an idea of the size of the units of weight and volume, take a look at the table below. Think of how challenging that would be as you are measuring. If you were making a pot of soup, it could be pretty complicated to measure the amount of liquid in ounces. The same idea applies for weight and volume. Neither would you measure length of a football field in inches. You would not measure how tall you are in miles. Selecting the Appropriate Weight or Capacity UnitsĬhoosing the correct units can make all the difference for a measurement.
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