U-Head Adjustable Support

The U-Head Adjustable Support(also known as U-shaped adjustable prop or channeled top support)is a specialized load-bearing and height-adjustable component widely used in construction formwork support systems,especially for scenarios requiring stable positioning of beam-and-slab formworks,steel girders,or wooden joists.Distinguished by its U-shaped top bearing plate(U-head),this support is designed to prevent lateral displacement of supported structures while enabling precise height adjustment,making it a critical accessory for ensuring formwork stability and concrete placement accuracy.

Typical Application Scenarios

The U-Head Adjustable Support is tailored for scenarios where lateral stability of the supported structure is critical.Its main applications include:

Beam&Slab Formwork Support:Used to bear wooden joists or steel secondary beams in floor slab formworks,and to support beam side formworks.The U-groove fixes the joists/beams,avoiding displacement caused by concrete pouring vibration.

Large-Span Structure Construction:Applied in formwork systems for long-span beams(e.g.,bridge girders,factory workshop beams)or prefabricated component installation,where precise height adjustment and anti-slip support are required.

Steel Structure Temporary Support:Used as a temporary support for steel purlins,(lintels),or small steel beams during steel structure erection,ensuring accurate alignment before permanent fastening.

High-Formwork Systems:In high-rise building construction(floor height>5m),it collaborates with heavy-duty scaffold poles to provide stable vertical support,with the U-head preventing lateral drift of formwork components.

Installation&Usage Guidelines

To ensure safety and performance,strict adherence to installation and usage rules is required:

Match Supported Structures:Select a U-head groove width that matches the size of the supported joist/beam(e.g.,a 50×100mm wooden batten requires a U-groove width of≥50mm).Avoid forcing oversized supports into the groove,which may damage the U-head.

Ensure Vertical Alignment:Install the support so that the lead screw is perpendicular to the ground/base(verticality deviation≤1°).Misalignment will cause eccentric loading,leading to lead screw bending or U-head deformation.

Secure Insertion into Poles:For sleeve-type bases,ensure the insertion length into the scaffold pole is≥150mm(per safety standards)to prevent disengagement under load.

Tighten&Lock After Adjustment:Once the desired height is achieved,use a wrench to fully tighten the adjusting nut.For high-vibration scenarios(e.g.,concrete pumping),install anti-loosening pins or double nuts to prevent nut slippage.

Avoid Overloading:Never exceed the rated load(check the manufacturer’s test report).For example,do not use a 20kN support for a 25kN load,as this may cause thread failure or lead screw fracture.

Inspect Before Use:Check for defects such as U-head cracks,lead screw bending,thread damage,or loose welds.Damaged supports must be discarded immediately—repair(e.g.,welding cracked U-heads)is prohibited.

Maintenance&Storage

Clean After Use:Remove concrete residue,dust,or rust from the U-head,lead screw,and nut.For threaded parts,apply anti-rust oil to prevent thread seizure.

Classified Storage:Store supports in a dry,ventilated area(avoid moisture to prevent rust).Separate different specifications(e.g.,U-head sizes,load capacities)to avoid mixing during later use.

Regular Inspection:Conduct quarterly checks on stored supports—focus on thread wear,U-head deformation,and weld integrity.Mark defective supports for disposal.

In summary,the U-Head Adjustable Support is a specialized,high-stability component that addresses the need for anti-slip and precise support in formwork and steel structure construction.Its rational selection,correct installation,and regular maintenance are essential for ensuring construction safety,formwork accuracy,and project quality.