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簡介：JOURNALOFCONSTRUCTIONALSTEELRESEARCH652009373385內(nèi)容列表建筑鋼結(jié)構(gòu)研究期刊的主頁WWWELSEVIERCOM/LOCATE/JCSR7300漢字，漢字，5000單詞，單詞，25萬英文字符萬英文字符對鋼混凝土組合梁橋的橋面應(yīng)力疲勞行為的分類和統(tǒng)計評價JINHEEAHNA,CHUNGWOOKSIMB,YOUNJUJEONGC,A,SANGHYOKIMA土木與環(huán)境工程學(xué)院，延世大學(xué)，漢城，120749，韓國B土木系，建筑與環(huán)境工程，得克薩斯大學(xué)奧斯汀分校，奧斯汀，德克薩斯州，TX78712，美國C結(jié)構(gòu)研究部，韓國建設(shè)技術(shù)研究院，京畿道，411712，韓國文章信息文章歷史收到2007918接受2008428關(guān)鍵詞疲勞鋼混凝土組合橋面板第N個數(shù)據(jù)應(yīng)力分類摘要橋梁的維護(hù)成本由于世界各地的許多現(xiàn)有的橋梁惡化或到其設(shè)計壽命而迅速增加。此外，韓國規(guī)劃并建設(shè)了許多大跨度橋梁，對高承載力橋面板的研究和開發(fā)以及疲勞強(qiáng)度的提高已受到越來越多的關(guān)注。本文給出了在這樣的環(huán)境下開發(fā)的一種新型的鋼混凝土組合橋面板的疲勞行為的研究結(jié)果。所提出的復(fù)合橋面由波紋鋼板，焊接鋼筋，剪力連接件以及鋼筋混凝土填料組成。疲勞試驗是在相同頻率下的四種不同的應(yīng)力范圍下進(jìn)行四點(diǎn)彎曲試驗。為了排除混凝土灌注的影響，對鋼試樣的疲勞試驗控制在普通波紋鋼板的混凝土灌注之前進(jìn)行。局部鋼試件和鋼混凝土組合橋面試件都顯示疲勞失效發(fā)生在波紋鋼板和鋼筋的焊接處。最后，對各試件的焊縫部位的應(yīng)力分類根據(jù)ALBRECHT的概率模型的統(tǒng)計方法得出。研究表明，這種鋼混凝土組合橋面在正彎矩作用下鋼部件的疲勞行為可以用經(jīng)典的SN方法得出。M2008ELSEVIER公司保留所有權(quán)利。1引言在重工業(yè)化地區(qū)如韓國，由于交通負(fù)荷的增加，許多基礎(chǔ)設(shè)施迅速惡化或達(dá)到預(yù)定的設(shè)計壽命。交通荷載對橋面等結(jié)構(gòu)類型最不利。因此，許多研究在的重點(diǎn)和目標(biāo)在于加強(qiáng)橋面結(jié)構(gòu)疲勞強(qiáng)度和結(jié)構(gòu)承載能力。鋼混凝土復(fù)合材料，玻璃鋼復(fù)合材料，預(yù)制混凝土橋面的橋梁已成為近期韓國的主要類型。通過三種類型，本文對鋼混凝土組合橋面板的進(jìn)行實驗研究。鋼混凝土組合橋面板的三種主要類型已被開發(fā)，如復(fù)合鋼格板，魯濱孫型復(fù)合橋面板，波紋鋼板橋面板。復(fù)合鋼格板分為兩種類型，混凝土填充和非填充（EXODERMIC橋面板）鋼網(wǎng)架于80年代開發(fā)，充分利用鋼橋面混凝土的強(qiáng)度和剛度1。由RAO等對這些復(fù)合鋼格橋面板對應(yīng)作者電話82319100136傳真82319100121EMAILADDRESSYJJEONGKICTREKRYJJEONG0143974X/SEEFRONTMATTER2008ELSEVIERLTDALLRIGHTSRESERVEDDOI101016/JJCSR200804007的實驗室測試。1，未填充的復(fù)合鋼格板顯示出2000000負(fù)荷周期沒有剛度損失，而完全填充的鋼橋面表現(xiàn)出2000000負(fù)荷周期的初始剛度損失為50?？偨Y(jié)，充分填充鋼網(wǎng)格復(fù)合橋面板比未填充的復(fù)合鋼格橋面板的靜力荷載作用下的承載力較高但是在循環(huán)荷載作用下剛度退化1。復(fù)合橋面采用栓釘剪力連接，首次完成在法國，命名為‘魯濱孫板’。這些橋面板已被用于整個歐洲地區(qū)的幾個大跨度橋梁橋面板2。對SONADA等人的試驗3結(jié)果表明，復(fù)合橋面板和栓釘?shù)倪B接件主要影響魯濱孫型復(fù)合橋面的疲勞強(qiáng)度，而鋼板的強(qiáng)度對魯濱孫型復(fù)合橋面的疲勞強(qiáng)度沒有多大作用。然而，這些橋面板近柱栓釘處在沖壓剪切破壞模式下失效；這是脆性斷裂破壞，粗螺柱的設(shè)置雖然有一定的韌性，但是剪切粘結(jié)破壞模式下仍然會導(dǎo)致較低的疲勞強(qiáng)度3。JHAHNETAL/JOURNALOFCONSTRUCTIONALSTEELRESEARCH652009373385375A橫截面B加勁肋A橫截面B平面圖。圖2。普通鋼試件（單位MM）。圖3。復(fù)合橋面試件描述（單位MM）32鋼混凝土組合橋面樣本樣品的尺寸有750,190,2200毫米。配筋細(xì)節(jié)的尺寸、布置栓釘剪力連接器測試的橋面試件如圖3所示。復(fù)合橋面試件的總高度為190毫米，這是低于在朝鮮的公路橋梁設(shè)計規(guī)范7規(guī)定的最小鋼筋混凝土橋面深度（220毫米）。用于復(fù)合橋面試件波紋鋼板具有9毫米的厚度和235MPA理論屈服應(yīng)力，混凝土的抗壓強(qiáng)度為30MPA。制作的鋼模分別為鋼筋連接的角焊縫波紋鋼板，如圖4（A）和（B），波紋鋼板RT值，如圖4所示（C），一個直徑16毫米的鋼筋用于受壓和分布鋼筋。分布鋼筋設(shè)置在橫向方向間距為為300毫米。分布鋼筋穿過每隔300米的焊接筋孔。AISC規(guī)范8表明，剪力連接件螺栓的直徑不得超過兩個半倍的鋼板的厚度（D＜25T）以防止疲勞失效。一個直徑16毫米的栓釘焊接在一個9毫米的波紋鋼板上，這樣的滿足AISC規(guī)范焊接。

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