Located in Changzhi High‑Tech‑Industrial‑Park, Shanxi Yuhua Remanufacturing‑Technology‑Co.,Ltd is a high‑tech‑enterprise engaged in laser‑restoration and component‑remanufacturing for mining‑machinery and heavy‑duty‑equipment, promoting green‑manufacturing and circular‑economy in southeast‑Shanxi The remanufacturing‑workshop covers a construction‑area of 30,000 ㎡. Adopting large‑span portal‑rigid‑frame steel‑structure, the workshop reserves heavy‑load crane‑brackets and wide‑open column‑free space. Its sufficient floor‑load and clear‑height meet production‑demands of large‑equipment hoisting, disassembly, laser‑cladding‑repairing and final‑assembly, providing a stable modern‑production base for the whole remanufacturing‑production‑line.
This heavy‑industrial‑workshop requires strict load‑bearing‑performance. Major construction‑challenges include precision‑control of large‑section steel‑columns & beams, pre‑embedded‑positioning of crane‑support‑system, synchronous hoisting for multi‑bay workshop, high‑strength‑bolt installation for beam‑column‑joints, welding‑deformation‑control of long‑span beams and verticality‑calibration of integral‑steel‑frame. Situated in mountainous Changzhi of Shanxi‑Province, the site features cold‑winter, obvious wind‑snow‑load and sharp‑day‑night‑temperature‑difference. The steel‑structure is calculated in accordance with local industrial‑building codes. Hot‑dip‑galvanization plus finish‑coating anti‑corrosion‑system is applied for primary‑secondary steel‑members against freeze‑thaw damage and workshop‑smog‑erosion. Reinforced‑treatment for heavy‑load crane‑bracket‑joints and full‑set fire‑protection‑coating guarantee long‑term safe‑operation under heavy‑equipment‑load. BIM‑simulation optimizes hoisting‑sequence and reduces cross‑operation‑risks for efficient‑delivery.
We undertook full‑scope steel‑frame construction of the 30,000 ㎡ remanufacturing‑workshop, covering detailed‑design of portal‑rigid‑frame, off‑site‑fabrication of large‑section steel‑columns‑and‑beams, shot‑blasting anti‑corrosion‑coating, foundation‑re‑survey, hoisting‑installation of steel‑columns, beam‑assembly‑lifting, final‑tightening of high‑strength‑bolts, field‑welding, installation of crane‑bracket embedded‑parts, elevation‑&‑verticality‑calibration and supplementary fire‑&‑anti‑corrosion painting. Strict quality‑control was implemented for component‑precision, bolt‑torque‑quality, weld‑non‑destructive‑testing, crane‑support‑erection and settlement‑monitoring. We delivered high‑quality steel‑structure‑works, laying a solid foundation for subsequent‑equipment‑installation and production‑operation, and contributing to the upgrading of circular‑manufacturing‑industry in Changzhi.
