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دانلود فایل های کارشناسی ارشد - رﻓﺘﺎر دﯾﻮار ﺑﺮﺷﯽ ﻓﻮﻻدی-دانلود سمینار ارشد رشته عمران سازه

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رﻓﺘﺎر دﯾﻮار ﺑﺮﺷﯽ ﻓﻮﻻدی-دانلود سمینار ارشد رشته عمران سازه


 دﯾﻮار ﺑﺮﺷﯽ ﻓﻮﻻدی

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ﺑﺮ ﻃﺒﻖ ﻧﺘﺎﯾﺞ ﺣﺎﺻﻠﻪ از اﯾﻦ ﺷﮑﻞ ﻫﺎ ﻣﯽ ﺗﻮان اﻇﻬﺎر داﺷﺖ ﮐﻪ ﻣﻨﺤﻨﯽ ﻫﺎی ﻫﯿﺴﺘﺮزﯾﺲ در ﺻﻮرت ﺗﻘﻮﯾﺖ ﺷﺪن اﻋﻀﺎی ﻣﺮزی، ﺑﻪ ﺳﻤﺖ ﺑﺎﻻ اﻧﺘﻘﺎل ﭘﯿﺪا ﻣﯽ ﮐﻨﻨﺪ و اﯾﻦ ﻣﺴﺌﻠﻪ ﺗﺄﯾﯿﺪ ﮐﻨﻨﺪه اﯾﻦ ﻣﻮﺿﻮع اﺳﺖ ﮐﻪ ﻇﺮﻓﯿﺖ ﭘﺲ ﮐﻤﺎﻧﺸﯽ ﭘﺎﻧﻞ ﻫﺎ ﻫﻢ ﭼﻨﺎن ﺑﺪون ﺗﺄﺛﯿﺮ ﺑﺎﻗﯽ ﻣﯽ ﻣﺎﻧﺪ. ﻧﺎﺣﯿﻪ ﭘﻮﺷﺶ داده ﺷﺪه ﺗﻮﺳﻂ ﻣﻨﺤﻨﯿﻬﺎی ﭘﻮش ﻧﻤﻮدارﻫﺎی ﻫﯿﺴﺘﺮزﯾﺲ، ﻣﯿﺰان اﻧﺮژی ﺟـﺬب ﺷﺪه ﺗﻮﺳـﻂ ﭘﺎﻧﻞ ﻫﺎ را ﻧﻤــﺎﯾﺎن ﻣﯽ ﺳﺎزد. اﯾﻦ ﻣﺴﺌــﻠﻪ ﻧﯿﺰ ﻣﯽ ﺗﻮاﻧﺪ ﻧﺸﺎن داده ﺷﻮد ﮐﻪ اﻓﺰاﯾﺶ ﻣﯿﺰان ﺟﺬب اﻧﺮژی ﺑﻪ ﻃﻮر ﻣﻘﺪﻣﺎﺗﯽ ﻧﺎﺷﯽ از اﻓﺰاﯾﺶ ﻇﺮﻓﯿﺖ ﻫﺎی ﮐﻤﺎﻧﺶ ارﺗﺠﺎﻋﯽ ﻣﯽ ﺑﺎﺷﺪ.

 

ﻧﮑﺘﻪ اﺻﻠﯽ ﮐﻪ ﺑﺎﯾﺪ در اﺷﮑﺎل 5-8 ﺗﺎ5-10 ﻣﻮرد ﺗﻮﺟﻪ و رﺳﯿﺪﮔﯽ ﻗﺮار داده ﺷﻮد، ﺗﻮﺟﻪ ﺑﻪ ﺷﮑﻞ ﺑﺎرﯾﮏ ﺷﺪه ﻣﻨﺤﻨﯽ ﻫﺎی ﻫﯿﺴﺘﺮزﯾﺲ ﺧﻮاﻫﺪ ﺑﻮد. اﯾﻦ اﺷﮑﺎل ﺑﺎرﯾﮏ ﺷﺪه ﻣﻨﺤﻨﯽ ﻫﺎی ﻫﯿﺴﺘﺮزﯾﺲ ﺑﻪ دﻟﯿﻞ

 

 

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ﻃﺒﯿﻌﺖ ﻻﻏﺮ و ﺗﻘﻮﯾﺖ ﻧﺸﺪه و ﻧﯿﺰ رﻓﺘﺎر ﺷﮑﻞ ﭘﺬﯾﺮ ﭘﺎﻧﻞ ﻫﺎ، و اﯾﻨﮑـﻪ ﮐﻤﺎﻧـﺶ آﻧﻬﺎ ﻗﺒﻞ از ﺗﺴﻠﯿـﻢ ﻣﺼﺎﻟـﺢ ﺑﻪ وﻗـﻮع ﻣﯽ ﭘﯿﻮﻧﺪد؛ ﺣﺎﺻﻞ ﺷﺪه اﻧﺪ. در ﻣﺪل ﺳﻮم، ﮐﻪ دارای اﻋﻀﺎی ﻣﺮزی ﺑﺴﯿﺎر ﻗﻮی ﻣﯽ ﺑﺎﺷﺪ، اﯾﻦ ﺗﺄﺛﯿﺮ ﮔﺬاری ﻗﺎﺑﻞ ﻣﺸﺎﻫﺪه ﺧﻮاﻫﺪ ﺑﻮد. ﻫﻤﭽﻨﯿﻦ اﯾﻦ ﻣﺴﺌﻠﻪ ﻗﺎﺑﻞ اﺳﺘﻨﺘﺎج ﻣﯽ ﺑﺎﺷﺪ ﮐﻪ ﺳﺨﺘﯽ اﻟﻤﺎن ﻫﺎ و اﻋﻀﺎی ﻣﺮزی دارای ﺗﺄﺛﯿﺮ ﮐﻤﯽ ﺑﻮده و ﺑﺮ ﻫﯿﭻ ﮐﺪام از ﭘﺎراﻣﺘﺮﻫﺎی ﺻﻠﺒﯿﺖ و ﻗﺎﺑﻠﯿـﺖ ﺗﻐﯿﯿـﺮ ﺷﮑﻞ ﭘﺎﻧﻞ ﻫﺎ اﺛﺮﮔـﺬار ﻧﺨﻮاﻫﺪ ﺑﻮد، و راه ﺣﻞ ﻫـﺎﯾﯽ ﮐـﻪ ﺑﻪ ﻣﻨﻈـﻮر ﭘﯿﺸﮕـﯿﺮی از ﺑﺎرﯾﮏ ﺷﺪﮔﯽ ﻣﻨﺤﻨﯽ ﻫﺎی ﻫﯿﺴﺘﺮزﯾﺲ و در ﻧﺘﯿﺠﻪ ﺟﻠﻮﮔﯿﺮی از ﮐﺎﻫﺶ ﻇﺮﻓﯿﺖ ﺟﺬب اﻧﺮژی، وﺟﻮد دارﻧﺪ، ﻋﺒﺎرت از اﺳﺘﻔﺎده از ورق ﻫﺎی ﺑﺎ ﺿﺨﺎﻣﺖ ﺑﯿﺸﺘﺮ ﮐﻪ ﺑﻪ ﻋﻨﻮان ﯾﮏ راه ﺣﻞ ﻏﯿﺮ اﻗﺘﺼﺎدی ﺗﻠﻘﯽ ﻣﯽ ﺷﻮد و ﻧﯿﺰ اﺳﺘﻔﺎده از ﺳﺨﺖ ﮐﻨﻨﺪه ﻫﺎ ﺧﻮاﻫﻨﺪ ﺑﻮد. ﯾﮏ راه ﺣﻞ ﻣﻨﺎﺳﺐ ﮐﻪ ﻗﺎدر ﺑﻪ ﺟﺎﯾﮕﺰﯾﻨﯽ روش ﻫﺎی ﻗﺒﻠﯽ ﻣﯽ ﺑﺎﺷﺪ، اﺳﺘﻔﺎده از ﻓﻮﻻد دارای ﻧﻘﻄﻪ ﺗﺴﻠﯿﻢ ﭘﺎﯾﯿﻦ ﻣﯽ ﺑﺎﺷﺪ ﮐﻪ ﺳﺒﺐ ﺗﺸﮑﯿﻞ ﻧﻮاﺣﯽ ﺗﺴﻠﯿﻢ ﺷﺪﮔﯽ ﻗﺒﻞ از وﻗﻮع ﮐﻤﺎﻧﺶ ﻣﯽ ﺷﻮد.

 

اﺳﺘﻔﺎده از ﺳﺨﺖ ﮐﻨﻨﺪه ﻫﺎ و ﺗﻌﺒﯿﻪ آﻧﻬﺎ در ﻓﻮاﺻﻞ ﻻزم، ﻣﯽ ﺗﻮاﻧﺪ ﮐﻤﺎﻧﺶ ﮐﻠﯽ ﯾﺎ ﺳﺮاﺳﺮی ﺻﻔﺤﺎت را ﺑﻪ ﺗﺄﺧﯿﺮ اﻧﺪاﺧﺘـﻪ و ﯾﺎ ﺳﺒـﺐ اﯾﺠﺎد ﮐﻤﺎﻧـﺶ ﻣﻮﺿﻌـﯽ در اﺟـﺰای ﭘﺎﻧﻞ ﻫــﺎ ﮔﺮدد. ﮔﺮﭼـﻪ اﺳﺘﻔــﺎده از ﺳﺨﺖ ﮐﻨﻨﺪه ﻫﺎی ﺑﺴﯿﺎر زﯾﺎد، ﻗﺎﺑﻠﯿﺖ ﺗﻐﯿﯿﺮ ﺷﮑﻞ ﭘﺬﯾﺮی ﭘﺎﻧﻞ ﻫﺎ را ﮐﺎﻫﺶ داده و اﯾﻦ اﻣﺮ ﺑﻪ ﻋﻨﻮان ﯾﮏ ﻋﺎﻣﻞ ﻧﺎﻣﻄﻠﻮب ﺑﺮای دﯾﻮارﻫﺎی ﺑﺮﺷﯽ ﻓﻮﻻدی ﮐﻪ ﺑﺎ ﻫﺪف ﻣﻘﺎوم ﺳﺎزی ﺳﺎﺧﺘﻤﺎن ﻫﺎ در ﺑﺮاﺑﺮ ﺑﺎرﻫﺎی زﻟﺰﻟﻪ ﻣﻮرد اﺳﺘﻔﺎده ﻗﺮار ﻣﯽ ﮔﯿﺮﻧﺪ، ﻣﺤﺴﻮب ﺧﻮاﻫﺪ ﺷﺪ.

 

ﻣﯿﺰان ﺑﻬﯿﻨﻪ و ﻣﻄﻠﻮب اﺳﺘﻔﺎده از ﺳﺨﺖ ﮐﻨﻨﺪه ﻫﺎ ﻣﯽ ﺗﻮاﻧﺪ ﺑﺮاﺑﺮ ﺑﺎ ﻣﻘﺪاری ﮐﻪ ﺑﺎﻋﺚ رخ دادن ﻫﺮ دو ﭘﺪﯾﺪه ﮐﻤﺎﻧﺶ ﻣﻮﺿﻌﯽ و ﺗﺴﻠﯿﻢ ﻣﺼﺎﻟﺢ ﺑﻪ ﻃﻮر ﻫﻤﺰﻣﺎن ﮔﺮدد، ﺗﻌﺮﯾﻒ ﺷﻮد. ﮐﺎرﺑﺮد ﺳﺨﺖ ﮐﻨﻨﺪه ﻫﺎ ﺑﻪ اﯾﻦ ﻣﯿﺰان ﺳﺒﺐ ﺟﺒﺮان ﺑﺎرﯾﮏ ﺷﺪﮔﯽ ﺷﮑﻞ ﻣﻨﺤﻨﯽ ﻫﺎی ﻫﯿﺴﺘﺮزﯾﺲ ﺷﺪه و ﻗﺎﺑﻠﯿﺖ ﻣﺘﻨﺎﺳﺐ ﺗﻐﯿﯿﺮ ﺷﮑﻞ ﭘﺬﯾﺮی و ﻧﯿﺰ اﺳﺘﻬﻼك اﻧﺮژی ﮐﺎﻓﯽ را ﻓﺮاﻫﻢ ﻣﯽ آورد.

 

-2-2-3-1-5 ﭘﺎﻧﻞ ﻫﺎی ﺗﻘﻮﯾﺖ ﺷﺪه

 

ﺑﺮای ﺑﺮرﺳﯽ اﺛﺮ ﺳﺨﺖ ﮐﻨﻨﺪه ﻫﺎ ﺑﺮ رﻓﺘﺎر ﭼﺮﺧﻪ ای ﭘﺎﻧﻞ ﻫﺎی ﺑﺮﺷﯽ، 16 ﻣﺪل ﮐﻪ ﺟﺪول6-1 ﺟﺰﺋﯿﺎت ﻣﺮﺑﻮط ﺑﻪ آﻧﺎن را ﻧﻤﺎﯾﺶ ﻣﯽ دﻫﺪ، ﺑﻪ اﯾﻦ ﻣﻨﻈﻮر ﺑﺮرﺳـﯽ ﺷﺪه اﻧﺪ. ﻣﺪل ﻫﺎی 1 ﺗﺎ 6 ﺑﻪ ﻣﻨﻈﻮر ﻣﻄﺎﻟﻌﻪ رﻓﺘﺎر ﺑﺎرﮔﺬاری ﭼﺮﺧﻪ ای ﻣﺮﺑﻮط ﺑﻪ ﭘﺎﻧﻞ ﻫﺎی ﺗﻘﻮﯾﺖ ﺷﺪه ﺑﺎ ﺳﺨﺖ ﮐﻨﻨﺪه ﻫﺎی دارای ﺻﻠﺒﯿـﺖ ﻫﺎی ﻣﺘﻔﺎوت، ﺑﺎ آﻧﺎﻟﯿﺰ ﻣﻨﺤﻨـﯽ ﻫﺎی ﺑﺎر (ﻧﯿﺮوی ﻫﯿﺴـﺘﺮزﯾﺲ)- ﺗﻐﯿﯿﺮ ﻣﮑﺎن ﻣﺮﺑﻮط ﺑﻪ آﻧﺎن و ﻫﻤﭽﻨﯿﻦ ﻣﻘﺎﯾﺴﻪ اﯾﻦ ﻣﻨﺤﻨﯽ ﻫﺎ ﺑﺎ ﻣﻨﺤﻨﯽ ﻫﺎی ﭘﻮش ﻣﺘﻨﺎﻇﺮ ﻣﻮرد ﺑﺮرﺳﯽ ﻗﺮار ﮔﺮﻓﺘﻪ اﻧﺪ. ﻣﺪل ﻫﺎی 7 ﺗﺎ 9 ﺑﺎ ﻫﺪف ﻣﻄﺎﻟﻌﻪ اﺛﺮات ﻣﺮﺑﻮط ﺑﻪ ﻓﻮاﺻـﻞ ﺳﺨﺖ ﮐﻨﻨﺪه ﻫـﺎ ﻣﻄﺎﻟﻌﻪ ﺷﺪه اﻧﺪ. ﻣﺪل ﻫﺎی 10 ﺗﺎ 15 ﺑﻪ ﻣﻨﻈﻮر ﻣﻄﺎﻟﻌﻪ ﺗﺄﺛﯿﺮ اﺑﻌﺎد ﭘﺎﻧﻞ ﺑﺮرﺳـﯽ ﺷﺪه اﻧﺪ. 15 ﻣﺪل اوﻟﯿﻪ ﻫﻤﮕﯽ ﻣﺮﺑﻊ ﺷﮑﻞ ﺑﻮده و ﻣﺪل 16 ﺑﻪ ﻣﻨﻈﻮر ﺑﺮرﺳﯽ ﺻﺤﺖ ﻧﺘﺎﯾﺞ و ﻧﯿﺰ ﺑﺮرﺳﯽ ﻣﻘﺎدﯾﺮ ﻣﺘﻔﺎوت ﻧﺴﺒﺖ اﺑﻌﺎد ﭘﺎﻧﻞ درﻧﻈﺮ ﮔﺮﻓﺘـﻪ ﻣﯽ ﺷﻮد. در ﺟﺪول 5-1 ، IS ﻣﻤﺎن دوم ﺳﻄﺢ ﺳﺨﺖ ﮐﻨﻨﺪه ﻫﺎ ﺑﻮده و ﭘﺎراﻣﺘﺮ b ﺑﻪ ﺻﻮرت ﺻﻠﺒﯿﺖ ﻧﺴﺒﯽ ﺳﺨﺖ ﮐﻨﻨﺪه ﻧﺴﺒﺖ ﺑﻪ ﭘﺎﻧﻞ درﻧﻈﺮ ﮔﺮﻓﺘﻪ ﻣﯽ ﺷﻮد:

لینک دانلود :

ﻣﻄﺎﻟﻌﻪ رﻓﺘﺎر دﯾﻮار ﺑﺮﺷﯽ ﻓﻮﻻدی-سمینار عمران سازه با فرمت ورد


نوشته شده در : یکشنبه 31 مرداد 1395  توسط : مدیر سایت.    نظرات() .

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