Question
Download Solution PDFदी गई (चित्र में) आयताकार एकल प्रबलित RCC बीम के लिए IS 456: 2000 द्वारा अनुमत तनाव सुदृढीकरण का न्यूनतम क्षेत्रफल निर्धारित करें। सुदृढीकरण इस्पात ग्रेड Fe500 है।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंप्रत्यय:
न्यूनतम तनाव सुदृढीकरण:
\(\frac{{{A_{st\ min}}}}{{b\; ×\; d}} = \frac{{0.85}}{{{f_y}}}\)
जहाँ,
Ast min = न्यूनतम तनाव सुदृढीकरण, b = बीम की चौड़ाई, d = बीम की गहराई, fy = इस्पात की उपज शक्ति, D = कुल गहराई
अधिकतम तनाव सुदृढीकरण:
IS 456 के अनुसार बीम में तनाव सुदृढीकरण का अधिकतम क्षेत्रफल कुल क्षेत्रफल का 4% से अधिक नहीं होना चाहिए अर्थात 0.04bD।
परिकलन:
दिया गया है, b = 250 mm, d = 400 mm, D = 440, fy = 500 N/mm2
न्यूनतम तनाव सुदृढीकरण:
\(\frac{{{A_{st\ min}}}}{{b\; ×\; d}} = \frac{{0.85}}{{{f_y}}}\)
\({{{A_{st\ min}}}} = \frac{{0.85\;×\; {{b \;×\; d}}}}{{{f_y}}}\)
\({{{A_{st\ min}}}} = \frac{{0.85\;×\; {{250\; ×\; 400}}}}{{{500}}}\)
\({{{A_{st\ min}}}} = 170 \ mm^2\)
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