【正文】 ing gravity of one hoisting beam F1 refers to Max Load of manual hoist由以上計(jì)算可知：在有風(fēng)載荷的情況下，手拉葫蘆倒鏈承受力的力遠(yuǎn)小于手拉葫蘆倒鏈的最大承載力。 the requirement of lifting calculations.8. 計(jì)算書1 Attached Calculation Sheet 1直徑φ20m、最大提升重量62t~124t之間的儲罐吊裝強(qiáng)度計(jì)算書Hoist Beam Calculation (Chain Block)For Diameterφ20m, Tank Weight 62~124t 說明： 此類型儲罐共4個(gè)，所用桅桿、漲圈及手拉葫蘆的數(shù)量和規(guī)格均一樣，因此選擇起重重量大的TXX12系列（124t）作為計(jì)算依據(jù)，以此證明此類儲罐均適合手拉葫蘆起重吊裝法。Then the tank wall is weld in the order of spot welding of ring gap, welding of prekeeping contraction gap, welding of ring gap. When longitudinal gaps and ring gap have been welded, dimensions and welded quality of tank shell plates should be inspected according to design requirements.，對罐壁找圓。Install manual pulleys on hoisting rackNormal hoisting of tank body，在下圈板的上口每隔3～5m劃上標(biāo)尺線（每格100mm）。 the upper most circle of tank shell plates has been welded and installed。Posts erected at the internal tank wall should be as close to tank shell plates as possible in order to reduce the moment of post. Since the stability of each post affects the stability of the hoisting of entire tank body, each post must be vertically secured and strengthened with 2 tilted support bars, and a radial level rope (steel rope) may be added as maximum lift weight exceeds 50t and tank diameter exceeds 20m, which forms all the hoisting racks into a radiate connection by turnbuckle。The quantity of manual pulleys is decided based mainly on the load of manual pulley and the maximum load of tank eventually hoisted. 最大提升的載荷（Pmax）計(jì)算如下：Maximum hoisting load is calculated as follows:Pmax＝K（P1＋P2＋………＋P頂＋P附）Pmax = K (P1 + P2 + ... + Proof + Pattachment)式中：K＝ Where: K = P1＋P2＋……――罐壁板的重量，單位：tP1 + P2 + ... is the sum of weight of shell plates in ton (t)P頂 ―― 罐頂?shù)闹亓?，單位：tP roof is the weight of roof P附 ―― 附件的重量，單位：tP attachment is the weight of attachment in ton (t)Decide the quantity of manual pulleys required計(jì)算公式：Calculation formula:N≥Pmax/167。3. 手拉葫蘆提升倒裝法施工技術(shù)施工順序Construction order of flip chip construction technology with manual pulley hoisting 施工順序 手拉葫蘆設(shè)備準(zhǔn)備Preparation of manual pulley device施工前技術(shù)交底Technical briefing before construction施工平面布置Construction plane layoutConstruction order 儲罐幾何尺寸、焊接質(zhì)量檢驗(yàn)Inspection of dimensions and welding quality of the tank最上圈壁板吊裝、組焊Hoisting and welding of the upper most circle of tank shell plates底板鋪設(shè)、焊接Layout and welding of bottom plate 罐頂欄桿安裝Install handrail of the tank罐頂安裝就位Tank roof is set in place圍焊包邊角鋼Circumferential welding of edging angle steel 手拉葫蘆系統(tǒng)就位安裝調(diào)整Installation adjustment of manual pulley system頂升第一圈壁板Lifting the first circle of shell plates脹圈、支撐板安裝Install expanding ring and support plates將脹圈落下并脹緊支撐桿在第二圈壁板上Lower the expanding ring and expand the support bars at the second circle of shell plates.第二圈壁板安裝就位The second circle of shell plates is set in place第二圈壁板幾何尺寸、焊接質(zhì)量檢驗(yàn)Inspection of dimensions and welded quality of the second circle of shell plates將脹圈卸下安裝到下一圈壁板上Remove expanding ring and install it to the next circle of shell plates如此循環(huán)施工到最后一圈壁板組焊Repeat such a construction cycle until the last circle of tank shell plates is welded頂升、組焊第三圈壁板Lifting and welding of the third circle of shell plates吊裝、頂升完成，拆除手拉葫蘆系統(tǒng)The hoisting and lifting are pleted and manual pulley system is removed. 手拉葫蘆提升示意圖Sketch of manual pulley hoisting采用在儲罐內(nèi)壁圓周上均勻設(shè)置若干手拉葫蘆和小立柱進(jìn)行提升法見示意圖1：Fig. 1 shows that a number of manual pulleys and small posts are set up evenly on the internal circumference wall of the tank to carry out hoisting: 圖1：手拉葫蘆提升示意圖 Fig 1: Sketch of manual pulley hoisting 脹圈和吊耳 手拉葫蘆 桅桿 罐底板 罐基礎(chǔ) 斜撐 罐壁Expanding ring and hoisting lugManual pulleyBackstayBottom plate of the tankFoundation of the tankTilted supportShell plate圖1：儲罐內(nèi)壁圓周上均設(shè)若干手拉葫蘆和立柱進(jìn)行倒裝法示意圖Fig. 1 Sketch of a number of manual pulleys and small posts being set up evenly on the internal circumference wall of the tank to carry out flip chip construction4. 手拉葫蘆提升裝置的準(zhǔn)備The preparation of manual pulley hoisting device 手拉葫蘆裝置Manual pulley device 選用5t、10t手拉葫蘆。16 Hoisting Masts)1. 工程概述Project profile XX工程的xx臺儲罐的現(xiàn)場安裝，由于儲罐數(shù)量多、工期緊張，所以我們?yōu)榱吮Ｕ蟽弈苋缙诘耐瓿?，我們針對部分適合的儲罐（容積452m3~5027m3 ~124t， 共26個(gè)）采用手拉葫蘆提升倒裝法進(jìn)行儲罐安裝。Expanding ring: It is made of profile steel in segments according to the curvature of internal diameter of the tank wall, and the segments are bolted into several large segments. The segments are expanded tightly to the tank wall by manual jacks between them. After the expanding ring has been expanded tightly, gantry plates are applied to hook up expanding ring and to be welded on the tank wall. The gantry plates are usually set up at both sides of the sliding rack of lifting rack in order to jointly support the weight of tank when applying chain block lifting. 準(zhǔn)備施工所用的工具如龍門板，銷子，鋼尺加減絲，撬棍，手錘，大錘，樣板等。――is the deduction coefficient with a range of G――單臺手拉葫蘆的額定起重量；G――is the rating load of single manual pulley ：Table 1. List of quantity of manual pulleys序號Sequence number儲罐編號Number of tank相對應(yīng)的計(jì)算書According to calculation sheet儲罐名稱Name of tank儲罐尺寸(mm)Dimensions of tank (mm)儲罐容積(m3)Volume of tank (m3)儲罐起重重量(t)Weight of tank that be put up (t)手拉葫蘆數(shù)量(臺)Quantity of manual pulley (set)手拉葫蘆型號(t)Model of manual pulley (t)桅桿規(guī)格 Model of the backstay (￠mmmm)漲圈規(guī)格 Model of the Swell loop桅桿間距離Distance of eath backstay(m)單支桅桿承重eath backstay weight(t)1TXX12A1污水儲罐Waste water tankΦ20000x16000502712420102197 ［182TXX12B1污水儲罐Waste water tankΦ20000x160005027124