1. 磚墻(qiang)焊于混(hun)凝土(tu)柱(zhu)預埋鋼板(ban)和夾(jia)于混(hun)凝土(tu)柱(zhu)上(shang)保溫及不保溫單管固定支架

  這類支架對(dui)于不保(bao)溫DN250~300 管和 DN125~300保(bao)溫單管的安裝，如(ru)圖(tu)2-20。

2. 焊于混(hun)凝(ning)土柱預埋鋼板(ban)上不(bu)保(bao)(bao)溫(wen)雙管(guan)固定支架和保(bao)(bao)溫(wen)雙管(guan)固定支架

   圖(tu)2-21和表(biao)2-7給出了焊于混(hun)凝土柱預埋鋼板上不保(bao)溫雙(shuang)管固定支(zhi)(zhi)(zhi)(zhi)架(jia)。該支(zhi)(zhi)(zhi)(zhi)架(jia)DN25~125規格中支(zhi)(zhi)(zhi)(zhi)梁材料為角鋼或單槽鋼，在DN150~300規格中支(zhi)(zhi)(zhi)(zhi)梁材料一律采(cai)用雙(shuang)槽鋼復(fu)合式，DN250、DN300的兩個規格支(zhi)(zhi)(zhi)(zhi)架(jia)上還要加斜(xie)撐。圖(tu)2-21 是按DN150~300規格畫出的簡圖(tu)。

  圖2-22和表(biao)2-8給出(chu)了焊于混凝(ning)土柱預埋鋼板上保溫雙(shuang)管固(gu)定支(zhi)架(jia)。該支(zhi)架(jia)DN25采(cai)用(yong)(yong)(yong)角鋼支(zhi)梁，DN32、DN40 采(cai)用(yong)(yong)(yong)單槽(cao)鋼支(zhi)梁，DN50~100采(cai)用(yong)(yong)(yong)雙(shuang)槽(cao)鋼支(zhi)梁，DN125采(cai)用(yong)(yong)(yong)單槽(cao)鋼加斜(xie)撐(cheng)支(zhi)梁，DN150~300 采(cai)用(yong)(yong)(yong)雙(shuang)槽(cao)鋼加斜(xie)撐(cheng)支(zhi)梁。圖2-22是按(an)DN125、DN150~300 規格畫出(chu)的簡(jian)圖。