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Intelligent hydraulic jacking formwork platform for high-rise building construction

Categories High Rise Building Construction
Brand Name: KATTOR
Model Number: JFP series-Intelligent hydraulic jacking formwork platform
Place of Origin: CHINA
MOQ: 1 set (normal size)
Payment Terms: L/C, D/P, T/T, Western Union
Delivery Time: 8~16weeks
Load capacity: 400 ton
Efficiency: 2 days one storey
Platform: totally-enclosed
Stroke Of Cylinder: 6m
Jacking Speed: 100mm/min
Max Load Capacity: 4000T Of Working And Formwork Platform
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    • Product Details
    • Company Profile

    Intelligent hydraulic jacking formwork platform for high-rise building construction

    With rapid development of social economy, high-rise building has become a symbol of building industry and a new name card of the city development. In these super high-rise buildings, mainly are frame-core tube structures. Core-tube structure normally use reinforced concrete structure, it can be seen as a carrier of the horizontal structure, it’s the mainline of the whole building structure construction, so the construction technique and method become the key of the structure construction. KATTOR JFP is a new platform which was developed for high-rise building core tube, use large oil cylinder as jacking power, for the building which have higher storey or have larger changes in core-tube, it’s adaptability is better; it provides bigger and enclosed operation space for construction work, and higher safety. It’s support location is low, and the construction speed is faster. At the moment, this type platform achieved good effects in Guangzhou Xita project and Shenzhen Jingji project, the comprehensive effect is outstanding, and it will be the preferred formwork construction technique for high-rise building in the future.


    Safety & Reliability

    • Overall structure calculation: accurate calculation and analysis by finite element
    • Overall anti-falling device: all shoring cylinder system equipped with anti-falling device
    • Cylinder protection device: box girder anti-falling system, self-lock device on cylinder
    • Pressure monitoring device: according to calculation, equipped with digital control device of stress-strain monitoring
    • Horizontal force resistant device: considering the influence of wind load, designed special pathway for peripheral suspended truss
    • Totally-enclosed platform: ensure personal safety, decrease the safety risk of secondary material transport

    Good adaptability

    • Large load capacity: 400T load capacity of single cylinder
    • Easy to assembly, disassembly: bailey truss structure, modularized design
    • Elevator directly reach the platform: elevator can reach any storey according to requirement
    • Overall adduction, partial disassembly: when the core-tube structure changes, partial disassembly and adduction are available
    • It provides 2.5-4 operation layers: lifting stroke is 6m, provides more operation space for steel banding and concrete curing

    Reasonable cost, High-efficiency and Environmental-protection

    • Light weight
    • Flexible cooperation mode
    • Fabricated bailey truss and modular design, reusable.
    • Decrease construction measure cost, save construction time

    System components


    KATTOR jFP is composed of three sub-systems:

    Bailey truss platform system, suspension system and power shoring and jacking system.

    1. Bailey truss platform system

    Truss platform Top steel platform Middle steel platform

    It includes type 200 bailey truss with four kinds of length: 3m, 2m, 1.75m, 1.25m and three kinds of joints: joint 1,2 ,3. Through axis pins, primary and secondary trusses are vertically and horizontally connected and assembled to a square frame structure.On top of the structure is the upper steel platform, and its bottom suspending the middle steel platform. The top steel platform provides a temporary storage yard for steel structures including steel bars, stiffened steel frameworks etc., and also contains material spreader, gas bottle room, waste platform, washroom and so on.The middle steel platform provides central control room, mixing room, material storage yard, welding machine room, power supply room and temporary rest place for workers.

    2. Suspension system

    The upper pulley structure is used to move the suspension rack inwardly when the outside wall of the core adducts.The standard suspension rack unit provides 7 layers operation platform outside the core and 6 layers inside, to finish following works: 1.decoration of layer Fn-1 which already finished concrete casting.2. Set up and take away formworks of layer Fn which is standing by for casting. 3. Steel bar banding of layer Fn+1 and so on.

    3. Power shoring and jacking system

    Power shoring and jacking system Power shoring and jacking system comprises upper and lower shoring box girders, Jacking cylinder and shoring cylinder, Jacking stand column, Hydraulic power system and control system.Upper and lower shoring box girders include standard segmental girder and nonstandard segmental girder. The standard segmental girder is equipped with cylinders to control the action of brackets, to realize shoring of the whole system. Jacking stand column and jacking cylinders are connected by flange, the jacking force pass to bailey truss platform system through stand column during jacking up process. Equipped with anti-falling system, the pawl sticks inside the trough and effectively prevents the whole system from falling in case of accidental cylinder slipping. Intelligent hydraulic power and control system uses closed-loop control, which set up displacement and pressure sensors, through computer control and hydraulic drive to achieve composite and sequential action, to meet the requirement of synchronous jacking accuracy of 1mm. Equipped with cameras in bracket position and stress-strain sensors in steel structure component, all of them controlled by central computer (human - machine alternation interface) to realize visual monitoring and measuring.

    Core components of JFP system

    1. Double acting hydraulic cylinders with long stroke, high capacity

    Double oil cavity design, realize double acting by oil pressure, stroke of main jacking cylinder up to six meters ,large load capacity ,can afford side load up to 10% of rated load capacity. The cylinder is on the bottom of the operation platform, and it was synchronous controlled by control panel to realize stable lifting.

    Product model and parameters of main cylinder


    Load capacity(Ton)



    Piston Dia.(mm)

    Jacking speed(mm/min)







    Product model and parameters of shoring cylinder


    Load capacity(Ton)



    Piston Dia.(mm)

    Extend-retract speed(mm/min)







    2. hydraulic and electric control system

    Hydraulic control and electric control system are the two big control system of JFP.
    Hydraulic control system is composed of pump station, switches and valves, hydraulic hoses, control panel control all switches and valves.

    Electric control system realize real-time monitoring of operation platform through : weather signals collected by control panel, healthy structure signals of operation platform, signals of hydro-static level and angle gauge, working parameters of cylinder, signals of jacking synchronous status, video image and so on related information.

    The operation platform can realize safety and stable jacking through a variety of control, meet the comprehensive performance requirements: windproof, anti-falling, deviation prevention and correction, synchronous jacking and so on.

    3. Formwork

    KATTOR provides aluminum alloy formwork and steel formwork, compared with steel formwork, aluminum alloy formwork has advantage of light weight, assembly and disassembly more convenient. Reusable of modular structure.

    Formwork adjustment technology is designed for high-rise building core-tube with structure, section area, shape changes, it can realize up-down adjustment of formwork.

    Working principle

    Set reserved holes inside vertical structure, shoring box girder was bracing in the reserved holes by telescoping mechanism on both sides, steel stand column and hydraulic cylinder were connected to the up and down shoring box girder, the JFP’s lifting was realized by cylinder’s jacking and retraction. Jacking up one storey at one time, jacking up platform through steel stand column, and then jacking up the formworks and rack units. Following is jacking process:

    1. Initial status:

    After previous jacking step,take away formworks and clean up.

    2. Steel banding status:

    Banding top layer’s steel, and also clean up the formworks.

    3. Jacking status:

    JFP jacking up, and the formwork raise one storey height together with JFP.

    4. Concrete casting status:

    Close formworks, concrete casting, lifting lower box girder, back to initial status.

    Compare with similar technology in same industry



    Climbing formwork

    Lifting formwork

    Jacking formwork


    Project interval

    Waiting the concrete strength grow around one day



    Jacking velocity

    Climbing 5 to 10

    times each storey

    Lifting 3 times each

    storey, and cost

    around 6 hours

    for each lifting

    Jacking 1 time each

    storey, and cost 2

    hours for one jacking


    Formwork transfer


    Cost around 1 day



    Set up formwork

    Assembly formwork piece by piece,cost

    around 1.5 days for each storey

    Precise control of jacking,

    cost 7 hours for each storey


    Formwork dismantle

    Cost around 1 day

    Doesn’t cost

    construction time

    Doesn’t cost

    construction time


    Hoisting and

    transport of steel

    bar,machines and


    Hoisting and transport many batches, cost

    around 4.5 days, large impact to other


    Hoisting and transport

    big batch,cost around

    half day,small impact

    to other processes.


    High altitude refit

    The structure is not

    adaptive after transfer

    Need to refit the


    Doesn’t need refit



    construction time

    for each storey

    6.5 days

    5 days

    2 days


    Reference No.1

    Project name: China Zun (Z15) Tower

    Location: Beijing

    Project profile:

    Z15 Tower is a super high-rise building located at the heart of CBD in Chaoyang District,Beijing,it will be the tallest building in Beijing.the west side of the project is opposite to Beijing international trade building(the tallest building at the moment),total height of the building is 528m, and planning to be the headquarter building of CITIC. The project start on 12th September,2011, the main structure will be completed at the end of 2016,and the whole project will be completed in 2018.It was invested by CITIC, and it’s estimated total investment reaches 24 billion RMB.


    Z15 tower core construction adopts KATTOR JFP system.The main parts applied in this project are: tower crane supporting system,PLC control system and hydraulic control system. Supporting system contains three supporting layers,on the 1st and 2nd supporting layers there are supporting

    cylinders(100T),lateral wheels and telescopic cylinders(50T),on the 3rd layer use screw

    jacks(35T);Hydraulic control system and PLC control system provide powers and realize all cylinders synchronous actions,and also real-time monitor the load condition,all of them ensured the stability of tower crane during construction and jacking up process. The project construction time was greatly decreased by adopting KATTOR JFP system.


    Reference No.2

    Project name: UpperHills

    Location: Shenzhen City, Guangdong Province

    Project profile:
    UpperHills apartment located at the north area of HOPSCA, it was composed of two building which

    heights are around 224.5m, it’s the 2nd highest glass wall apartment building in Shenzhen, total covered area is 170,000㎡, 62 storeys,total of 639 units. The main refined decoration unit is 106-358㎡,a room to four room, few rough unit are 440-470㎡, there are totally 1400 carports in the parking garage.


    UpperHills apartment core construction adopts KATTOR JFP system.The main parts applied in this project are the hydraulic jacking system.It was composed of main cylinders,telescopic cylinders,hydraulic pump stations and pipeline accessories. All cylinders working synchronously, to realize the lifting and lowering of the platform. Anti-falling and stress-strain monitoring system ensured the safety of all

    construction platform. Large capacity and long stroke cylinders realized construction efficiency of 3 days one storey,which greatly decreased the construction time of the project.

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