Structural Engineering

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Structural Engineering


Worcester Polytechnic Institute CE 3010 Structural Engineering – D-Term 2022 1 Exam 4 – May 2-4, 2022 Problem No. 1 (50 points) Given: The shed in the Figure has double 2X6 knee braces on each column to resist the lateral force. Lumber is Southern Pine. The braces are to be connected to the columns with 16d common nails, lateral seismic force to roof diaphragm WEL = 98 plf Height h1 = 9 ft; h2= 2ft. Determine the following: 1. Use ASD analysis and find the required number of Nails for the brace connection for both wet and dry conditions. (use the six modes and Z-equations for this analysis) 2. Use LRFD Analysis and find the required number of Nails for the brace connection for both wet and dry conditions. 3. Repeat part 1) and 2) to determine how the number of nails change if ring shank nails are used with D=0.148 in. and L = 3.5 in. Worcester Polytechnic Institute CE 3010 Structural Engineering – D-Term 2022 2 Problem No2: (50 points) Roof beams are connected to foundation top plates with 8d box toenails. Lumber is DF-L. Roof beams are spaced 16 in o.c. Wind pressure =40 psf; Wall height is 12ft. Determine the required number of toenails per roof beam: 1. Using ASD and LRDF procedure and for both dry and wet conditions. https://awc.org/pdf-viewer/?idp=4073&idf=4 https://www.waterboards.ca.gov/waterrights/water_issues/programs/bay_delta/california_waterfix/exhibits/docs/dd_jardins/DDJ-148%20ASCE%207-10.pdf
Answered Same DayMay 03, 2022

Answer To: Structural Engineering

Sonam answered on May 04 2022
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