The invention relates to the field of integral lifting and mounting of steel net racks, and particularly discloses a method and a device for integral lifting and mounting of a steel net rack by using a prestressed inhaul cable, the lifting and mounting method comprises the following steps: step 1, mounting and fixing a steel column; secondly, the net rack lifting units are spliced; step 3, arranging components and debugging; 4, trial hoisting is conducted, and abnormities are eliminated; 5, under the stress balance state, slow lifting is conducted; sixthly, the net rack lifting unit is lifted to the designed elevation, and then net rack units are supplemented; seventhly, parts are dismantled, and the whole steel truss is installed; and 8, safety guarantee in the lifting process of the step 5, the step 6 and the step 7 and assembly and disassembly operation of components are conducted through matched devices. Reverse prestress is applied to the prestress inhaul cable in the lifting process, the influence of inward inclination of the steel column is effectively avoided, the installation efficiency is effectively improved, and the secondary additional stress of the structure and the construction measure cost are effectively reduced.
本发明涉及钢网架整体提升安装领域,具体的公开了一种使用预应力拉索的钢网架整体提升安装方法及装置,该提升安装方法包括以下步骤:步骤一:对钢柱进行安装固定;步骤二:进行网架提升单元的拼装;步骤三:布置部件以及调试;步骤四:进行试吊,排除异常;步骤五:受力平衡的状态下,缓慢进行提升;步骤六:网架提升单元提升至设计标高,并后补网架单元;步骤七:拆除部件,钢网架整体安装完成;步骤八:通过采用配套的装置对步骤五和步骤六以及步骤七进行提升过程中的安全保障以及部件的安装和拆卸操作。通过在提升过程中对预应力拉索施加反向预应力,有效避免钢柱内倾的影响,有效提高安装效率和降低结构二次附加应力和施工措施费用。
Method and device for integrally lifting and installing steel truss by using prestressed inhaul cables
一种使用预应力拉索的钢网架整体提升安装方法及装置
2023-03-14
Patent
Elektronische Ressource
Chinesisch
IPC: | E04G SCAFFOLDING , Baugerüste / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
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