鉆孔灌注樁超長鋼筋籠吊裝方案設(shè)計-資料下載頁
2024-11-07 22:38本頁面
【導(dǎo)讀】度在不斷增加，大直徑超長鋼筋籠的制作和吊裝是保證鉆孔灌注樁質(zhì)量的關(guān)鍵技術(shù)。文章以某大廈鉆孔灌。吊裝過程中應(yīng)注意的事項。單、造價較低等特點，因此應(yīng)用非常廣泛。本工程鋼筋籠的具體情況如表1所列。為了減少鋼筋籠孔口連接時間，館和一棟星級酒店?；訃o(hù)樁部分采用鉆孔灌注。作，孔口對接下放安裝。籠），分2-3段制作并編號，鋼筋籠下孔前應(yīng)報驗，并應(yīng)制作混凝土保護(hù)層墊塊。程中，在樁身壓漿管底部安放PVC環(huán)形噴漿閥。下放鋼筋籠應(yīng)對準(zhǔn)孔位輕放、待鋼筋籠吊離地面后，主吊鉤繼續(xù)提升鐵扁。據(jù)鋼筋籠離地面的距離，指揮副吊鉤配合起鉤。甲，所有人員遠(yuǎn)離起吊作業(yè)范圍一定距離。[3]鋼筋籠上必須有牽引繩。節(jié)鋼筋籠，使兩節(jié)鋼筋籠的同一根主筋對正。h4—起吊時鋼筋籠距地面高度，取。根據(jù)受力情況分析，配備承載20噸。6個；鐵扁擔(dān)和料索具總重約噸。頂高程達(dá)到設(shè)計標(biāo)高后，固定鋼筋籠。高空墜物的安全事故。
【正文】 的 完好情 況 。 如果發(fā)現(xiàn) 滑 輪有裂 紋 或鋼絲繩 內(nèi) 鋼絲 有 斷 裂 ，必須 更 換 。 吊前務(wù) 必 檢查鋼筋 籠 內(nèi)是否有 雜 物 ，如 果 The Hoisting Plan Design of Ultralong Reinforcement Cage for Bored Piles Hu Yuling (Anhui Technical College of Water Resources and Hydroelectric Power, Hefei231603, China) Abstract: Bored piles have been widely applied in the construction of high rise buildings, large bridges and subways. Along with social development, the length and depth of bored piles are increasing unceasingly, which requires ultralong reinforcement cages with large diameters to match them. The making and lifting of large diameter superlong reinforcement cages is the key technology to guarantee the quality of bored piles. Taking the hoisting plan design of large diameter ultra long reinforcement cages for bored piles of some building as an example, the paper discusses the selection mode, the hoisting process of reinforcement cages, the determination of crane jib length, the calculation of different diameter wire rope tension, of reinforcement cage placement crane vertical height and main and the selection of crane and rigging, and then puts forward some matters needing attention in the hoisting process of reinforcement cages. Key words: reinforcement cage。 crane。 rigging。 dipping。 distortion
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