ARE Study Review

Which of the following framing methods are often used for low-rise buildings or buildings not more than 30 stories in height without additional types of bracing? Choose 2 A. Knee bracing B. X-bracing C. Moment-resisting frame D. Chevron brace Answer A & C are the simplest and most economical to use for such structures. B & D are commonly used for tall(er) structures. ARE 4.0 exam prep: SS

From this plan of a simple wood frame structure (1-story height), what is the maximum chord force at the east and west edges of the roof diaphragm if 110 lbs/foot lateral wind load is exerted as shown? A. 18,340 lbs B. 367 lbs C. 3,670 lbs D. 4,600 lbs Answer D. 4,600 is correct. The lateral wind load here is similar to a uniform load acting on a simple beam turned on its side. To find the maximum chord force at the edges of the diaphragm, use the equation for maximum moment wl²/8 ÷ building plan depth. 110 lbs per foot x (100 ft)² / 8 ÷ 30ft = 4,583.33 ARE 4.0 exam prep: SS

Identify the condition of vertical irregularity in this illustration. Answer In-plane discontinuity in vertical lateral-force resisting elements - that is offset of structural elements. Shear walls transfer loads to the foundation, but the capacity to do so is interrupted in this condition of random windows and openings. ARE 4.0 exam prep: SS

Period (time needed to complete a seismic wave cycle) in seconds is given for each of the following: equipment (filing cabinet), one-story structure, 4 stories, 10-20 stories, 70 story skyscraper. What is the primary determinant of a building's fundamental period? Answer Building height more than its structural system, materials or proportions determines its period. Rule of thumb: period = # stories / 10 ARE 4.0 exam prep: SS

Which of the following building configuration conditions produces vertical irregularities (categorized in IBC 1616.5.21) with the potential seismic performance resulting in localized structural damage: Choose 2 A. V1 Stiffness Irregularity: Soft Story B. V2 Weight / Mass Irregularity C. V3 Vertical Geometric Irregularity D. V4 In-Plane Irregularity in Vertical Lateral Force System E. V5 Capacity Discontinuity: Weak Story Answer C. V3 Vertical Geometric Irregularity and D. V4 In-Plane Irregularity in Vertical Lateral Force System ARE 4.0 exam prep: SS Resource tip: download the free pdf of FEMA 454 Designing for Earthquakes: A Manual for Architects from the FEMA library

From one story (storey) to the next, the maximum drift allowed is equal to 0.0025 x the height of the story. If the story height is 11 feet, what is the maximum drift allowed? Answer 0.0025 x 11ft x 12 in/ft = 0.33 inch ARE 4.0 exam prep: SS

In this configuration of shear walls with column-and-beam system, which statement is NOT true? (Choose 1) A. lateral resistance in the transverse direction is provided by the shear walls B. lateral resistance in the longitudinal direction is provided by the column-and-beam system C. lateral forces cannot be resisted in the longitudinal direction by the shear walls D. lateral forces cannot be resisted in the transverse direction by the column-and-beam system Answer B is not a true statement. The column-and-beam system doesn't provide lateral stability in the longitudinal direction, but could with the addition of bracing. ARE 4.0 exam prep: SS