34DB34/T4096—2022公路混凝土斜拉橋錨拉板技術(shù)指南Technicalguidelineforanchorageplateofhighwayconcretecable-stayedbridge2022-03-29發(fā)布2022-04-29實施安徽省市場監(jiān)督管理局發(fā)布I本文件按照GB/T1.1—2020《標準13.13.23.33.43.53.623.74.1.3錨拉板應(yīng)進行防腐處理，其中外露部分防腐應(yīng)按環(huán)境腐蝕種類采用長效型涂層配套體系；埋于4.1.4錨拉板的構(gòu)造應(yīng)與設(shè)置處斜拉橋的主梁構(gòu)造匹配，并應(yīng)與設(shè)置處的預(yù)應(yīng)力構(gòu)造、普通鋼筋構(gòu)造34.1.5錨拉板的傾角應(yīng)與拉索相適應(yīng)，主拉板底邊宜平行于主梁軸線并沿該處梁頂縱向布置，支承管4.1.7錨拉板宜進行實體有限元復(fù)核計算，見公式（σm≤fy/k1·····································4.2支承組件設(shè)計4.2.1支承組件一般由支承管、加勁環(huán)、錨墊板、頂4.2.2支承組件設(shè)計應(yīng)符合下列規(guī)4b)支承管正截面抗壓承載力應(yīng)滿足公式（2）要求：α1——支承管應(yīng)力不均勻及局部穩(wěn)定影響系數(shù)，采用附錄A的常規(guī)錨拉板取Y0Tc≤2α2tzglzzfvd·············································）；）；4.3拉板組件設(shè)計5Y0Tc≤β1A1fd+β2A2fd·····································）；Y0Tc≤β3tzllzzfvd·································································）；64.4.1壓接組件一般由壓接板、上翼7k2=npμjFpk/Fck······································································(6)——壓接板橫橋向傾角；b)壓接組件與混凝土結(jié)構(gòu)的抗拉承載力應(yīng)滿足公式（7）要求：Y0Fcd≤npμdFpd+npnkφ1(Ac-As)fcd+npnkφ2Asfsd····································(7)8——抗剪開孔形狀影響系數(shù)，宜通過試驗確定，采用常規(guī)圓形開孔可取0.89；——抗剪鋼筋強度折減系數(shù)，宜通過試驗確定，一般可取0.76。c)壓接板截面的抗拉承載力應(yīng)滿足公Y0Fcd≤φ3tyjlyjfd····································································(8)）；5.2加工9123456789支承管軸線與主拉板底邊夾角(°)主拉板與壓接板夾角(°)5.3安裝12支承管軸線傾角(°)346.2檢查b)特殊檢查應(yīng)由相應(yīng)資質(zhì)和能力的單位承擔(dān)。特殊檢查應(yīng)對結(jié)構(gòu)的安全耐久性提出明確結(jié)論和6.3維護（Dn-n）DL1BBBBBB注4：表中：n——拉索鋼絞線根數(shù)；t1～t9——對應(yīng)構(gòu)件的厚度；其他符號示意見圖A.1。a)坐標系原點設(shè)在索塔中軸線±0m處；X軸為順橋向，正方向沿橋軸線指向錨拉板側(cè)；Y軸為拉索懸鏈線