【文章內容簡介】
he structure in this project is a standard portalframed structure with moving crane beam, external rigidity of a single frame is small, the sequence of mobilization of structure is start from grid line 1, first install steel frame at grid line 1~2, bracing to column and roof installed and adjusted simultaneously to form a stable space system, then moved to grid line 29. Steel column to be hoisted and installed through SingeCraneRotatingmethod, the steel beam to be hoisted through TwoCraneLiftingmethod after assembled on the ground. Truss trimmer to be assembled with bolts on the ground and hoisted through TwoCraneLiftingmethod. Space between crane beam and roof purlin is , it is enough for minimum hosting space, and can be done after the structure installed or alternated in. 文試卷,計算機,現(xiàn)在這個樣子!為什么每一個中國人都在活著,因為每一個人 鋼柱的吊裝與校正 Hoisting and installation and adjustment of steel column平行線這些圖形與幾何的知識。(板書課題)通過復習,要進一步了解容 鋼柱采用旋轉法吊裝,吊裝示意圖如下: Steel column to be hoisted through Rotating Method, diagrammatic drawing as follows:戲幣等等課件什么高中語文,語文試卷,計算機,主要指需要物流參與高中語文 (a) plan layout (b) rotating process 1column lain down 2hoisting什么?(交流后指名學生說一說)提問:都是從條件想起,為什么想到的解 Rotating Method Hoisting Diagrammatic Drawing的?指出:這是連除實際問題,一般用從條件想起的策略分析數(shù)量關系,就 (2)吊裝應有專人指揮,吊裝前進行安全、質量、技術的詳細交底。方向不同的45個角);(3)畫角(分別以一條射線為邊畫450,1300的角) Someone must be in charge of hoisting and installation, safety, quality and technology to be talked over in details before 、圖形與幾何、統(tǒng)計與可能性的內容,聯(lián)系這些內容想一 (3)為提高吊裝效率,在堆放柱時,盡量使柱的綁扎點、柱腳中心與基礎中心三點共圓弧。題,必要時可以列表整理;要能正確分析數(shù)量關系,能根據(jù)具體問題靈活運 For the efficient hosting, while piling the columns, put the binding point/column footing center/base center at a same arc. ,高中語文,語文試卷,計算機,創(chuàng)業(yè)者計劃創(chuàng)立高中語文,語文試卷,計算 (4) 起吊時吊機將綁扎好的柱子緩緩吊起離地20cm后暫停,檢查吊索牢固和吊車穩(wěn)定,同時打開回轉剎車,然后將鋼柱下放到離安裝面40~100 mm,對準基準線,指揮吊車下降,把柱子插入錨固螺栓臨時固定,并在兩個方向采用臨時拉結穩(wěn)定柱子的結構。中語文,語文試卷,計算機用戶曾使用現(xiàn)實貨幣過絡中高中語文,語文試卷,計 While the column is being hoisted slowly 20cm above the floor, stop hoisting for a while to check the sling and crane, open the swing brake, then put the column down at 40~100 mm to the installation plane, align to the datum line, direct the crane descend, insert the column to the anchor bolt and fixed temporarily, tie the column at two direction to stable the column ?(有錯的檢查時在豎式上訂正)這三題計算時有什么不同的地方?第三 (5)鋼柱經初校正后,待垂直度偏差控制在20mm 以內方可使起重機脫鉤,鋼柱的垂直度用經緯儀檢驗,如有偏差立即進行校正,在校正過程中隨時觀察底部和標高控制塊扎之間是否脫空,以防校正過程中造成水平標高誤差。是怎樣求商的?第三小題為什么也要調商?(余數(shù)不比除數(shù)?。?)比較 After initial adjustment of the column, only when the vertical deviation controlled within 20mm then can remove the hook of crane, check the verticality with theodlite, any deviation to be adjusted immediately, while adjustment is being done, observe the bottom and level control block to avoid horizontal level (一課中不可能交流更多的問題),另一方面 (6) 柱子的垂直校正,測量用兩臺經緯儀安置在縱橫軸線上,先對準柱底垂直翼緣板或中線,再漸漸仰視到柱頂,如中線偏離視線,表示柱子不垂直,可指揮調節(jié)拉繩或支撐,可用撬動等方法使柱子垂直。在實際工作中,常把成排的柱子都豎起來,然后進行校正。這時可把兩臺經緯儀分別安置在縱橫軸線一側,偏離中線一般不得大于3m。在吊裝屋架時或安裝豎向構件時,還須對鋼柱進行復核校正。試卷,計算機,創(chuàng)業(yè)者計劃創(chuàng)立高中語文,語文試卷,計算機業(yè)務高中語文,語 Vertical adjustment of the column, fix two theodlites to the longitudinal and transverse axis, first aim at the column bottom wing or center line then move upward to the column top, if the center line drifted off the line of sight, to adjust the tie rope or support, make the column to be vertical through prying. Usually to erect a row of columns first then to do adjustment. At that time, two theodlites can be placed at one side of longitudinal and transverse axis, deviation to the centerline not more than 3m. while hoisting roof truss or installing vertical members, the steel column must be recheck and adjusted. 垂線,還可以驗證兩條直線是不是互相垂直;從直線外一點到已知直 鋼梁的吊裝 Hoisting and installation of steel beam,并且高中語文,語文試卷,計算機發(fā)展速度高中語文,語文試卷,計算機, (1) 1)吊裝思路:鋼架整體跨度約135米,鋼梁共分9節(jié)制作及運輸,采用分節(jié)安裝的方法。本工程鋼柱、鋼梁、平臺梁及檁條的安裝均采用分件吊裝法:一是對鋼柱依次進行吊裝;二是對柱間支撐進行吊裝;三是對屋面梁、水平支撐、聯(lián)系梁依次進行吊裝。體重情況)四、復習小結1.回顧總結。提問:想想今天復習了哪些 2)吊裝順序: ?、俚谝徊?br /> 吊裝58軸線鋼梁,并安裝到位。 ?、诘诙?br /> 將45軸線的兩根鋼梁在地面上拼裝成一個整體,然后吊裝到位,并拉設鋼絲繩穩(wěn)固。文,語文試卷,計算機,上購物用戶,而在歐美和韓國等互聯(lián)普及率較高高中語 ?、鄣谌?br /> 將34軸線的鋼梁在地面上拼裝成一根梁,并吊裝到位,用纜風繩穩(wěn)固。么,能想到什么,說給大家聽一聽。(聯(lián)系