[amp_mcq option1=”$$\\frac{{\\text{L}}}{{100}}$$” option2=”$$\\frac{{\\text{L}}}{{150}}$$” option3=”$$\\frac{{\\text{L}}}{{260}}$$” option4=”$$\\frac{{\\text{L}}}{{360}}$$” correct=”option3″]<\/p>\n
The correct answer is $\\frac{{\\text{L}}}{{360}}$.<\/p>\n
The maximum permissible deflection of a timber beam supporting a roof is $\\frac{{\\text{L}}}{{360}}$, where L is the span of the beam. This means that the beam can deflect no more than $\\frac{1}{360}$ of its span under load.<\/p>\n
The deflection of a beam is the amount that it bends under load. The amount of deflection that a beam can withstand depends on a number of factors, including the type of wood used, the size and shape of the beam, and the load that it is carrying.<\/p>\n
The maximum permissible deflection of a beam is usually specified by the building code. In the United States, the International Residential Code (IRC) specifies that the maximum permissible deflection of a timber beam supporting a roof is $\\frac{{\\text{L}}}{{360}}$.<\/p>\n
If a beam deflects more than the maximum permissible amount, it may be considered to be structurally unsafe. In this case, the beam may need to be replaced or reinforced.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”$$\\frac{{\\text{L}}}{{100}}$$” option2=”$$\\frac{{\\text{L}}}{{150}}$$” option3=”$$\\frac{{\\text{L}}}{{260}}$$” option4=”$$\\frac{{\\text{L}}}{{360}}$$” correct=”option3″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[643],"tags":[],"class_list":["post-6257","post","type-post","status-publish","format-standard","hentry","category-building-construction","no-featured-image-padding"],"yoast_head":"\n