對于鋼結構建筑的施工來說，如果說鋼結構構件的制作是基礎，那么鋼結構安裝則是保證其正常運行的關鍵所在。從某種意義上來說，鋼結構安裝的質(zhì)量優(yōu)劣，直接關系著整個建筑項目工程施工的質(zhì)量以及外觀。那么在鋼結構安裝時會出現(xiàn)什么問題呢？
For the construction of steel structure buildings, if the fabrication of steel structure components is the foundation, then the installation of steel structure is the key to ensure its normal operation. In a sense, the quality of steel structure installation is directly related to the quality and appearance of the whole construction project. So what problems will occur during the installation of steel structure?
1.在進行鋼結構安裝之前，沒有仔細地審查圖紙設計內(nèi)容，導致實際安裝過程中出現(xiàn)了質(zhì)量問題。
1. Before the installation of steel structure, the design contents of drawings were not carefully reviewed, resulting in quality problems in the actual installation process.
2.鋼結構工程中的鋼柱安裝過程中，存在著一些違反施工操作規(guī)程的行為，比如只是將鋼柱單根地插起來，卻沒有采取一些措施使其形成一個相對比較穩(wěn)固的框架體系，因此很不牢固，容易出現(xiàn)倒塌現(xiàn)象。同時，施工過程中還經(jīng)常存在著類似于錨固螺栓的標高不一致，螺栓的定位尺寸在放預埋時出現(xiàn)偏差，進而出現(xiàn)鋼柱安裝時的偏位等問題。
2. During the installation of steel columns in steel structure engineering, there are some behaviors in violation of construction operation regulations. For example, the steel columns are only inserted individually, but some measures are not taken to form a relatively stable frame system. Therefore, it is very unstable and prone to collapse. At the same time, there are often some problems in the construction process, such as the inconsistency of the elevation similar to the anchor bolt, the deviation of the positioning size of the bolt when placing and embedding, and then the deviation during the installation of the steel column.
3.鋼結構安裝過程中使用多是高強度螺栓，實踐中經(jīng)常會出現(xiàn)如下問題：螺栓露牙不足或者比螺母還低一些；螺栓沒有擰緊，且扭剪過程中將梅花頭擰斷了，大六角形狀沒有設置初擰和終擰標記；在實際安裝過程中，摩擦面上原有的一層防護紙沒有完全撕掉；將高強度的螺栓用作臨時固定之用，待其安裝之后兩天兩夜內(nèi)沒有進行漆封操作；沒有對扭矩和軸力進行復試，而且也沒有對緊固力矩嚴格按照相關規(guī)定進行計算；鋼結構的摩擦系數(shù)沒有進行嚴格的試驗和測算；安裝過程中所用到的拉桿螺栓沒有擰緊，或者拉桿本身就不直，導致螺母和母材之間的接觸面太小，因此難以實施穿孔作業(yè)。
3. High strength bolts are mostly used in the installation of steel structures, and the following problems often occur in practice: the exposed teeth of bolts are insufficient or lower than nuts; The bolt is not tightened, and the plum blossom head is broken during torsion and shearing, and the large hexagon shape is not marked with initial tightening and final tightening; In the actual installation process, the original layer of protective paper on the friction surface is not completely torn off; High strength bolts are used for temporary fixing, and no paint sealing operation is carried out within two days and two nights after installation; The torque and axial force were not retested, and the tightening torque was not calculated in strict accordance with relevant regulations; The friction coefficient of steel structure has not been strictly tested and calculated; The tension rod bolts used in the installation process are not tightened, or the tension rod itself is not straight, resulting in too small contact surface between the nut and the base metal, so it is difficult to carry out perforation operation.
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