1.建立絕大多(duo)數(shu)設計主要參數(shu)
絕(jue)大多(duo)數設計主要參數包含樓板的跨距和薄厚、二級樓板支(zhi)點、鋼筋的種類、混凝土強度等級變大的負荷。
2.建立鋼桁架(jia)樓板支(zhi)撐板長(chang)度(du)。
依據(ju)工(gong)程項(xiang)目狀況(kuang),樓(lou)板長度能是一(yi)跨(kua),還可以是多(duo)跨(kua)數量。確定時,需要注意(yi):
(1)鋼桁(heng)架樓(lou)板長度該是200mm的倍率,情況下可以(yi)為100mm的倍率。
(2)樓板(ban)長短盡可能持續(xu),且多么(me)跨數量。
(3)木地板(ban)(ban)長短不(bu)(bu)得(de)超過(guo)20m。實(shi)際(ji)上,鋼桁架(jia)樓(lou)板(ban)(ban)支撐板(ban)(ban)可以(yi)制作無限長,但(dan)操作過(guo)程中(zhong)(zhong),充分(fen)考慮樓(lou)板(ban)(ban)支撐板(ban)(ban)的(de)運送指(zhi)數(shu),長短不(bu)(bu)得(de)超過(guo)17.5米,否則未找到(dao)要(yao)運輸車。必(bi)然(ran)會有一些項(xiang)目要(yao)求(qiu)非常(chang)嚴格,房屋中(zhong)(zhong)間(jian)不(bu)(bu)可以(yi)拼(pin)湊。在這樣的(de)情況下,盡量進行了現場解決。
3.根據運用時(shi)期(qi)的測算,大(da)部分挑選鋼桁架樓板(ban)支撐板(ban)產品型號(hao)。
桁(heng)(heng)架(jia)(jia)密肋樓蓋設(she)(she)(she)計包含(han)四個一(yi)部(bu)分:桁(heng)(heng)架(jia)(jia)桿設(she)(she)(she)計、底(di)模設(she)(she)(she)計、桁(heng)(heng)架(jia)(jia)桿連(lian)接(jie)點設(she)(she)(she)計和桁(heng)(heng)架(jia)(jia)與(yu)底(di)模連(lian)接(jie)點設(she)(she)(she)計。這其中聯接(jie)節點抗壓強度由結構確保(bao),不(bu)用檢測。底(di)部(bu)設(she)(she)(she)計和成形能(neng)夠滿足承(cheng)受力規定,因此設(she)(she)(she)計工(gong)作人員僅需(xu)設(she)(she)(she)計桁(heng)(heng)架(jia)(jia)桿能(neng)選加(jia)厚型桁(heng)(heng)架(jia)(jia)樓板支撐板的種類(lei)。
4.在沒有任(ren)何(he)短暫(zan)性支撐點的(de)情(qing)況下,查(cha)驗操作臺或查(cha)驗工程施工階(jie)段,調節樓板(ban)數據(ju)模型以適應承受力規定(ding)。
5.建(jian)立橡膠支座中附加(jia)鋼筋數量。
鋼桁(heng)架(jia)(jia)持續時,環(huan)節計(ji)算(suan)出來(lai)支(zhi)(zhi)座(zuo)負筋(jin)(jin)橫截面(mian)減(jian)掉(diao)鋼桁(heng)架(jia)(jia)上(shang)弦橫截面(mian)為橡膠支(zhi)(zhi)座(zuo)額外(wai)鋼筋(jin)(jin);當鋼桁(heng)架(jia)(jia)在支(zhi)(zhi)撐(cheng)架(jia)(jia)處時斷時續時,應用(yong)流程上(shang)計(ji)算(suan)出來(lai)支(zhi)(zhi)撐(cheng)架(jia)(jia)。支(zhi)(zhi)座(zuo)負筋(jin)(jin)的橫截面(mian)是支(zhi)(zhi)撐(cheng)點所采(cai)用(yong)的額外(wai)鋼筋(jin)(jin),不(bu)同種類(lei)的鋼筋(jin)(jin)得改(gai)成(cheng)一樣抗拉強度。
6.制(zhi)作房子架(jia)構圖。
平面設(she)計圖(tu)(tu)(tu)(tu)設(she)計圖(tu)(tu)(tu)(tu)包含平面設(she)計圖(tu)(tu)(tu)(tu)設(she)計圖(tu)(tu)(tu)(tu)及許多連接(jie)點(dian)案(an)例。平面設(she)計圖(tu)(tu)(tu)(tu)設(she)計圖(tu)(tu)(tu)(tu)包含:鋼筋(jin)桁架(jia)樓(lou)板支(zhi)撐(cheng)板、載貨量支(zhi)座(zuo)負筋(jin)、柱(zhu)側(ce)孔眼及附加鋼筋(jin)、遍布鋼筋(jin)、柱(zhu)側(ce)、混凝土墻側(ce)支(zhi)撐(cheng)等(deng)。除此之外(wai),工程施工階段(duan)的短暫性支(zhi)撐(cheng)點(dian)合(he)理(li)配置(zhi)盡可能清晰地呈現在圖(tu)(tu)(tu)(tu)上。
7.別的需要注意(yi)的問題
樓層板(ban)(ban)可設計(ji)(ji)為(wei)(wei)單(dan)向板(ban)(ban)或雙向板(ban)(ban)。在(zai)(zai)工(gong)(gong)(gong)(gong)程(cheng)(cheng)施工(gong)(gong)(gong)(gong)階段(duan),鋼(gang)桁架的樓板(ban)(ban)支撐(cheng)板(ban)(ban)均為(wei)(wei)單(dan)向板(ban)(ban)。如果不給予短暫(zan)性(xing)支撐(cheng)點(dian),一般來(lai)說(shuo),工(gong)(gong)(gong)(gong)程(cheng)(cheng)施工(gong)(gong)(gong)(gong)階段(duan)所需要的鋼(gang)筋總數超(chao)過應(ying)用環(huan)節按(an)單(dan)向板(ban)(ban)計(ji)(ji)算出來(lai)鋼(gang)筋總數,因而樓板(ban)(ban)應(ying)設計(ji)(ji)為(wei)(wei)單(dan)向板(ban)(ban)。當實際工(gong)(gong)(gong)(gong)程(cheng)(cheng)項目要求設計(ji)(ji)雙向板(ban)(ban)時(shi),為(wei)(wei)了節省建筑鋼(gang)材,在(zai)(zai)工(gong)(gong)(gong)(gong)程(cheng)(cheng)施工(gong)(gong)(gong)(gong)階段(duan)應(ying)設垂直在(zai)(zai)桁架的短暫(zan)性(xing)支撐(cheng)點(dian)。