【正文】 Ixmm4Iymm4Cx(+)mm2000Cx()mm2000Cy(+)mmCy()mm表21主梁截面性質主梁由11段預制鋼箱梁組成，其中整橋的箱梁構造以跨中對稱，半橋的箱梁構造如圖22和圖23所示圖22 圖23截面構造如圖23圖24主梁所用材料及各個部件的數(shù)量、重量統(tǒng)計如下（表22——表28）名稱編號規(guī)格單件重(kg)數(shù)量總重(kg)頂板N14000161N1a4000165000251212512縱向加勁肋N61001010N6a10010500010名稱編號規(guī)格單件重(kg)數(shù)量總重(kg)底板N22500161N2a39401650001N2b1001633001縱向加勁肋N7100106N7a1001033006N7b1001030482N7c100102N7d10010200010157邊腹板N3520202N3a22043030002N3b22043020002縱向加勁肋N10a1001020006N10b1001034102N10c100102N10d100108002N10e1001012004中腹板N41068121N4a21681250001縱向加勁肋N9100104N9a1001050006N9b1001040812N9c100102斜腹板N5122N5a1633002縱向加勁肋N8100104N8a100102N8b100102橫隔板N11a19741010688N11c19641021682端封板N1322001040001支座墊板N14a400204002Q345D δ=10mmQ345D δ=12mmQ345D δ=16mmQ345D δ=20mmQ345D δ=30mm總計全橋兩套 總計表22 A節(jié)段材料工程數(shù)量表名稱編號規(guī)格單件重(kg)數(shù)量總重(kg)頂板N14000161縱向加勁肋N61001010底板N22500161縱向加勁肋N7100106邊腹板N3520122中腹板N41068121縱向加勁肋N9100104377斜腹板N5122縱向加勁肋N8100104377橫隔板N1119821210688耳板N12300306508Q345D δ=10mmQ345D δ=12mmQ345D δ=16mmQ345D δ=30mm總計全橋兩套 總計表23 B節(jié)段材料工程數(shù)量表名稱編號規(guī)格單件重(kg)數(shù)量總重(kg)頂板N140001614270651縱向加勁肋N61001010底板N22500161縱向加勁肋N7100106邊腹板N3520122中腹板N41068121縱向加勁肋N9100104斜腹板N5122縱向加勁肋N8100104橫隔板N1119821210684N11b19822010682耳板N12300306504支座墊板N14a400204002支座加勁板N15190102408Q345D δ=10mmQ345D δ=12mmQ345D δ=16mmQ345D δ=20mmQ345D δ=30mm總計全橋兩套 總計表24 C節(jié)段材料工程數(shù)量表名稱編號規(guī)格單件重(kg)數(shù)量總重(kg)頂板N14000161縱向加勁肋N61001010底板N22500161縱向加勁肋N7100106邊腹板N3520122中腹板N41068121縱向加勁肋N9100104斜腹板N5122縱向加勁肋N8100104橫隔板N1119821210688耳板N12300306508Q345D δ=10mmQ345D δ=12mmQ345D δ=16mmQ345D δ=30mm總計全橋兩套 總計表25 D節(jié)段材料工程數(shù)量表名稱編號規(guī)格單件重(kg)數(shù)量總重(kg)頂板N14000161縱向加勁肋N61001010底板N22500161縱向加勁肋N7100106邊腹板N3520122中腹板N41068121縱向加勁肋N9100104斜腹板N5122縱向加勁肋N8100104橫隔板N11198212106810耳板N123003065010Q345D δ=10mmQ345D δ=12mmQ345D δ=16mmQ345D δ=30mm總計全橋兩