{"id":4609,"date":"2026-10-22T06:23:45","date_gmt":"2026-10-22T06:23:45","guid":{"rendered":"https:\/\/www.ggsteelstruct.com\/projects\/jd-asia-no1-smart-warehouse\/"},"modified":"2026-10-22T22:14:05","modified_gmt":"2026-10-22T22:14:05","slug":"jd-asia-no1-smart-warehouse","status":"publish","type":"page","link":"https:\/\/www.ggsteelstruct.com\/ar\/projects\/jd-asia-no1-smart-warehouse\/","title":{"rendered":"\u0645\u0633\u062a\u0648\u062f\u0639 JD \u0622\u0633\u064a\u0627 \u0627\u0644\u0630\u0643\u064a \u0631\u0642\u0645 1"},"content":{"rendered":"\t\t
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  1. Home<\/a><\/li>
  2. Projects<\/a><\/li>
  3. JD Asia No.1 Smart Warehouse<\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
    \n\t\t\t\t\tCase study \u00b7 Smart logistics<\/span>\t\t\t\t<\/div>\n\t\t\t\t
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    Owner: JD Logistics<\/span>Main contractor: CSCEC 1st Bureau<\/span>Q355B<\/span><\/div>\t\t\t\t<\/div>\n\t\t\t\t
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    JD Asia No.1 Smart Warehouse: Steel Frame for 1.6 Million Parcels a Day<\/em><\/h1>\t\t\t\t<\/div>\n\t\t\t\t
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    Multi-storey steel frame for JD Logistics’ South China hub in Machong, Dongguan, sized around a 22 km cross-belt sorter, 78 automated stacker cranes and AGV traffic. Main contractor CSCEC 1st Bureau, 2017.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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    1.6 M+<\/strong>Parcels handled per day<\/span><\/div>\t\t\t\t<\/div>\n\t\t\t\t
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    22 km<\/strong>Cross-belt sorter supported<\/span><\/div>\t\t\t\t<\/div>\n\t\t\t\t
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    78<\/strong>Automated stacker cranes<\/span><\/div>\t\t\t\t<\/div>\n\t\t\t\t
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    approx. 9,500 t<\/strong>Structural steel, estimated<\/span><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    \n\t\t\t\t\t01<\/span>Project facts<\/span>\t\t\t\t<\/div>\n\t\t\t\t
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    A warehouse designed around its machines<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    JD Asia No.1 Machong is the South China smart logistics hub of JD.com, in the Xinsha industrial park on the Pearl River near Dongguan port. The building houses a 22 km cross-belt sorting system, 78 automated stacker cranes and fleets of handling robots, with a design throughput of more than 1.6 million parcels per day.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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    For a building like this, the structure is part of the equipment. Guiguan supplied the steel frame, mezzanine steel and floor deck, coordinated with the automation vendor’s load and deflection limits.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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    \n\t\t\t\t\tWarehouse steel frame during erection<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    Item<\/th>Detail<\/th><\/tr><\/thead>
    Owner<\/th>JD Logistics (JD.com)<\/td><\/tr>
    Main contractor<\/th>China Construction First Group, 3rd Company<\/td><\/tr>
    Location<\/th>Xinsha Industrial Park, Machong, Dongguan, Guangdong<\/td><\/tr>
    Building type<\/th>Multi-storey automated sorting and storage warehouse<\/td><\/tr>
    Floor area<\/th>approx. 150,000 m\u00b2 across warehouse levels<\/td><\/tr>
    Structural steel<\/th>approx. 9,500 t (about 63 kg\/m\u00b2)<\/td><\/tr>
    Key members<\/th>Welded H columns and girders, roof trusses, sorter support platforms, mezzanines, truss floor deck<\/td><\/tr>
    Steel grades<\/th>Q355B main members, Q235B secondary<\/td><\/tr>
    Grid \/ span<\/th>12 \u00d7 24 m typical bays; 36 m clear span over the sorting hall<\/td><\/tr>
    Our scope<\/th>Detailing, fabrication, coating, delivery, erection supervision<\/td><\/tr>
    Year<\/th>2017<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Tonnage and member data from fabrication records; areas and dates from the owner and main contractor.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    \n\t\t\t\t\t02<\/span>The challenge<\/span>\t\t\t\t<\/div>\n\t\t\t\t
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    Tight deflection limits and a fixed go-live date<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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    Automated systems tolerate millimetres, not centimetres. The steel had to stay inside the automation vendor’s limits under full live load.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Deflection and vibration<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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    Sorter platforms and stacker rails need deflection in the order of L\/1000 and low vibration. Standard warehouse girders do not meet that.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Column-free sorting zones<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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    The cross-belt loop needed a 36 m clear zone, while storage areas needed dense 12 m grids for rack loads.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Heavy floor loads<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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    Mezzanine and storage floors carried 15\u201325 kPa live loads plus point loads from racking and AGVs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Go-live date fixed by sales peaks<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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    Steel had to close in time for equipment installation ahead of the 618 and 11.11 sales seasons.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Thousands of interfaces<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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    Sorter hangers, conveyor supports, sprinkler mains and cable trays all bolted to the primary steel.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Fire and corrosion<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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    Riverside site with high humidity, plus fire ratings for a multi-storey storage building.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    \n\t\t\t\t\t03<\/span>Engineering solution<\/span>\t\t\t\t<\/div>\n\t\t\t\t
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    Stiff girders, a clear-span sorting hall and pre-punched interfaces<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Storage zones used a 12 \u00d7 24 m grid of welded H columns with deep welded plate girders, sized for stiffness first. Sorter and conveyor platforms were designed as separate braced frames sitting on the primary steel, so vibration from the sorter did not drive the floor girders.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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    The sorting hall used 36 m roof trusses on box-section columns, keeping the cross-belt loop free of columns. All equipment interface plates, hanger holes and cleats were placed in the Tekla model from the automation vendor’s layout and shop-drilled, so installers only bolted.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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    Floors used truss floor deck<\/a> as permanent formwork, which let MEP crews work below while slabs were poured above.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    \n\t\t\t\t\tColumn erection in the storage zone<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    Member \/ detail<\/th>Section & grade<\/th>Detailing note<\/th><\/tr><\/thead>
    Main column<\/th>Welded H 500\u00d7400 to 700\u00d7500, Q355B<\/td>Base plates with shear keys, anchor templates supplied<\/td><\/tr>
    Floor girder<\/th>Welded H 900\u20131,200 deep, Q355B<\/td>Pre-cambered, designed for L\/800 or better<\/td><\/tr>
    Sorting hall truss<\/th>H-section truss, 36 m span, Q355B<\/td>Trial-assembled in shop, bolted splices<\/td><\/tr>
    Sorter platform<\/th>H and channel frames, Q235B<\/td>Separate braced frames, slotted holes for alignment<\/td><\/tr>
    Floor deck<\/th>Truss deck 1.2\u20131.5 mm base, 90 mm truss<\/td>No props, 3.0 m span between beams<\/td><\/tr>
    Interfaces<\/th>Cleats, hanger plates, inserts<\/td>Shop-drilled from vendor layout, piece-marked<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    \n\t\t\t\t\tFabrication & QC, Guangdong base<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    \n\t\t\t\t\t04<\/span>Fabrication & QC<\/span>\t\t\t\t<\/div>\n\t\t\t\t
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    Camber, flatness and piece marks for fast installation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Floor girders were pre-cambered in the shop and checked before dispatch. Column base plates were milled flat for full bearing. Every interface cleat carried a piece mark that matched both the Tekla model and the automation vendor’s drawing, which let two installation teams work from one reference.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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