1. 磚墻焊(han)于(yu)混(hun)凝土(tu)柱(zhu)(zhu)預埋(mai)鋼板和夾于(yu)混(hun)凝土(tu)柱(zhu)(zhu)上保溫及不保溫單管(guan)固定支架

  這類支架(jia)對于不保溫(wen)DN250~300 管(guan)和 DN125~300保溫(wen)單(dan)管(guan)的安裝，如圖2-20。

2. 焊于混凝土柱預埋鋼板上不保溫(wen)雙管固定支(zhi)架和保溫(wen)雙管固定支(zhi)架

   圖(tu)2-21和表2-7給出(chu)了焊于混凝土(tu)柱預(yu)埋鋼板上(shang)不保(bao)溫雙管固(gu)定支(zhi)架。該支(zhi)架DN25~125規(gui)(gui)格(ge)中支(zhi)梁材料為角鋼或單槽(cao)鋼，在DN150~300規(gui)(gui)格(ge)中支(zhi)梁材料一律采用(yong)雙槽(cao)鋼復(fu)合式，DN250、DN300的兩(liang)個(ge)規(gui)(gui)格(ge)支(zhi)架上(shang)還要加斜(xie)撐。圖(tu)2-21 是按DN150~300規(gui)(gui)格(ge)畫出(chu)的簡(jian)圖(tu)。

  圖2-22和表2-8給(gei)出了焊于(yu)混凝(ning)土柱(zhu)預(yu)埋鋼(gang)(gang)(gang)(gang)(gang)板上保溫雙管(guan)固定支(zhi)架。該支(zhi)架DN25采(cai)(cai)用(yong)(yong)(yong)角鋼(gang)(gang)(gang)(gang)(gang)支(zhi)梁(liang)(liang)，DN32、DN40 采(cai)(cai)用(yong)(yong)(yong)單槽(cao)鋼(gang)(gang)(gang)(gang)(gang)支(zhi)梁(liang)(liang)，DN50~100采(cai)(cai)用(yong)(yong)(yong)雙槽(cao)鋼(gang)(gang)(gang)(gang)(gang)支(zhi)梁(liang)(liang)，DN125采(cai)(cai)用(yong)(yong)(yong)單槽(cao)鋼(gang)(gang)(gang)(gang)(gang)加斜撐支(zhi)梁(liang)(liang)，DN150~300 采(cai)(cai)用(yong)(yong)(yong)雙槽(cao)鋼(gang)(gang)(gang)(gang)(gang)加斜撐支(zhi)梁(liang)(liang)。圖2-22是按DN125、DN150~300 規(gui)格畫出的簡圖。