اخطار‌های زیر رخ داد:
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
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[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 210 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/global.php 462 my_date
/showthread.php 26 require_once
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
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[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 210 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/global.php 463 my_date
/showthread.php 26 require_once
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 103 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/global.php 469 my_date
/showthread.php 26 require_once
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
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[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 104 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/global.php 469 my_date
/showthread.php 26 require_once
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
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[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 105 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/global.php 469 my_date
/showthread.php 26 require_once
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 185 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/global.php 469 my_date
/showthread.php 26 require_once
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 210 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/global.php 846 my_date
/showthread.php 26 require_once
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
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[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 103 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/inc/functions_post.php 166 my_date
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 104 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/inc/functions_post.php 166 my_date
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 105 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/inc/functions_post.php 166 my_date
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 185 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/inc/functions_post.php 166 my_date
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 210 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/inc/functions_post.php 368 my_date
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 103 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/inc/functions_post.php 543 my_date
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 104 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/inc/functions_post.php 543 my_date
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 105 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/inc/functions_post.php 543 my_date
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 185 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/inc/functions_post.php 543 my_date
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 1038 - File: inc/plugins/mybbirckeditor.php PHP 7.4.33 (Linux)
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[PHP]   errorHandler->error
/inc/plugins/mybbirckeditor.php 1038 preg_replace
/inc/class_plugins.php 139 mybbirckeditor_parser
/inc/class_parser.php 197 pluginSystem->run_hooks
/inc/functions_post.php 758 postParser->parse_message
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 1054 - File: inc/plugins/mybbirckeditor.php PHP 7.4.33 (Linux)
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[PHP]   errorHandler->error
/inc/plugins/mybbirckeditor.php 1054 preg_replace
/inc/class_plugins.php 139 mybbirckeditor_parser
/inc/class_parser.php 197 pluginSystem->run_hooks
/inc/functions_post.php 758 postParser->parse_message
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 1038 - File: inc/plugins/mybbirckeditor.php PHP 7.4.33 (Linux)
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[PHP]   errorHandler->error
/inc/plugins/mybbirckeditor.php 1038 preg_replace
/inc/class_plugins.php 139 mybbirckeditor_parser
/inc/class_parser.php 197 pluginSystem->run_hooks
/inc/functions_post.php 789 postParser->parse_message
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 1054 - File: inc/plugins/mybbirckeditor.php PHP 7.4.33 (Linux)
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[PHP]   errorHandler->error
/inc/plugins/mybbirckeditor.php 1054 preg_replace
/inc/class_plugins.php 139 mybbirckeditor_parser
/inc/class_parser.php 197 pluginSystem->run_hooks
/inc/functions_post.php 789 postParser->parse_message
/showthread.php 1070 build_postbit
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 103 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/showthread.php 1153 my_date
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 104 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/showthread.php 1153 my_date
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 105 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/showthread.php 1153 my_date
Warning [2] preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead - Line: 272 - File: inc/plugins/imeiJalaliDate.php PHP 7.4.33 (Linux)
File Line Function
[PHP]   errorHandler->error
/inc/plugins/imeiJalaliDate.php 272 preg_replace
/inc/plugins/imeiJalaliDate.php 185 imeiJGconvert
/inc/class_plugins.php 139 imeiJalaliDate
/inc/functions.php 506 pluginSystem->run_hooks
/showthread.php 1153 my_date




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تعریف وطراحی دالهای یک ودوطرقه
#1
با سلام
نقل قول:
"دال به عضوی از سازه بتنی گفته میشود که ضخامت آن نسبت به طول و عرضش خیلی کمتر باشد و عمدتا بار ثقلی تحمل میکند.
دال دونوع هست یکطرفه و دو طرفه.
اگر دال میک مستطیل با ابعاد a و b باشد برای اینکه مشخص شوددال دو طرفه عمل میکند یا یکطرفه ،باید ببینیم نسبت دو ضلع بزرگتر به کوچکتر آن چقدر است. اگر این نسبت کمتر یا مساوی 2 باشد دال 2 طرفه است.وگرنه1 طرفه است. البته باید دقت کنید شرایط بالا تنها زمانی صادق هست که 4 طرف دال روی تیر قرار بگیرندو اما اگر فقط 2 طرف مقابل دال روی تیر قرار بگیرند همواره دال یک طرفه است. "

علاوه بر تعریف کلی فوق در فایل دانشکاهی ذیل با دالهای بتنی وملاحظات طراحی آنها بیشتر آشنا می شویم.




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