Shopping Centres

Vexcolt has an extensive history when providing expansion and control joints solutions for Shopping CentresDepartment StoresSupermarkets.

Shopping centres and department stores are particularly punishing environments for expansion joints. High level of pedestrian traffic combined with maintenance vehicles such as scissor lifts or cherry pickers mean that expansion joints must be particularly robust.

Control joints in internal floors in shopping centres should be laid to form bays to accommodate local moisture movement, such as the drying shrinkage of substrates. They are also used to compensate for small deflections arising from thermal expansion and contraction.

Recommendations

Expansion Joints

Shopping centres and department stores are particularly punishing environments for expansion joints. High level of pedestrian traffic combined with maintenance vehicles such as scissor lifts or cherry pickers mean that expansion joints must be particularly robust.

  1. It is vitally important that the joints selected provide smooth transit for pedestrians and most particularly those with disabilities. They should meet all current disability legislation requirements through the entire movement cycle of the jointing system.

Vexcolt’s jointing systems have been designed meet current European and USA Disability Legislation (ADA).

  1. The use of cleaning and maintenance equipment means that expansion joints need to be able to support high frequency vehicular loading and meet the requirements of Eurocode 1 – EN-1991-1-1 ‘Actions on structures’. Clause 6.3.2.3 of this Norm ‘Actions induced by forklifts’ (which pinpoints vehicle types, gross vehicle load, individual wheel load and wheel contact area) should be used as the basis of design in ensuring that any jointing system specified can accommodate loading from scissor lifts, cherry pickers, maintenance and cleaning equipment.

It is recommended that FL2 loading capacity (as detailed within EN-1991-1-1) be considered as the minimum acceptable. FL2 equates to a forklift truck of 46kN (4.6 tonnes) fully laden weight and closely matches loading from larger cherry pickers with spreaders.

This data must be used to calculate (normally by Finite Element Analysis FEA) whether (or not) a selected jointing system can resist repeated loads from the type of vehicle classified.

Control Joints

Control joints in internal floors in shopping centres should be laid to form bays to accommodate local moisture movement, such as the drying shrinkage of substrates. They are also used to compensate for small deflections arising from thermal expansion and contraction.

Typically, internal control joints are formed in maximum 6 metre x 6 metre bays in finishes laid on both ground-supported and suspended slabs. With suspended slabs control joints should also be laid directly over beams and at the mid-point of spans where anticipated creep deflection exceeds 20mm.

In high traffic environments such as shopping centres it is strongly recommended that control joints with metal side plates are installed in floors. The reason is that these metal plates help protect and support the finishes from the worst rigours of impact and abrasion which can often result in cracking and spalling of the edges of paving.

Projects

Vexcolt has years of experience supplying joints for shopping centres, department stores and supermarkets. Projects include:

  • Bluewater Park Shopping Centre
  • Westfield Stratford City
  • Brent Cross Shopping Centre
  • Lakeside Shopping Centre, Thurrock
  • Trafford Centre, Manchester
  • Meadowhall Shopping Centre
  • Westgate Shopping Centre
  • Wolverhampton Shopping Centre
  • TaiKoo Hui Complex Guangzhou, China
  • Harbour City, Hong Kong
  • Mall of the Emirates, Dubai
    Paragon Shopping Centre, Singapore
  • Beaugrenelle Centre, Paris
  • Centro Vasco de Gama, Lisbon

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