Building piles underpin the foundations of a structure afixing to subterrain rock or solid matrix, to support calculated weight loads and to retain earth from general or seismic movement and collapse.
Once the pile cavity has been bored, reinforcing steel cages are lowered into the hole with spacer wheels maintaining clearance from the bored hole edges. The pile is then infilled with concrete and left to cure before pile caps and strucures are tied into the pile head section.
Details are project specific and are provided by the project engineer generally following geotechnic investigations and calculations.
Nauhria have modern production technology and wealth of experience in manufacturing Pile Cage Rebar components. Many Pile cages are often prefabricated in Nauhria’s factory prior to delivery. Prefabrication provides a number of benefits including reducing onsite delays that can reduce the risk of bored hole collapse or hole flooding and significant savings in onsite space and labour.
Lapping
As pile depths vary, it is standard practice for cages to require straight bars and spirals to be lapped onsite prior to installation. Lappage can also be required subject to pile bar design where leg end on straight bars consume straight bar length.
When lapping Spirals the engineer must instruct as to whether lap welds are permitted and or the number of Coils to provide for safe lappage.
Overlapping length of straight bars is determined by the straight Bar diameter to comply with New Zealand Standards.Top Starter bars will also require lappage.
NOTE: Welding of rebar is only permitted with written permission and instruction of the project Engineer.
Nauhria Reinforcing deliveries are planned and coordinated in-house to maximise truck loading and transport routing to best service all our customers as efficiently and effectively as possible.
Please keep in mind that unexpected traffic density and incidents can result in delays outside of our control.
If you are inquiring about a delivery, please provide the project and delivery details and we will track the current status of the delivery and report back to you as soon as possible.
Delivery POSTPONEMENTS:
If due to delivery day circumstances you need to cancel your delivery please contact us immediately so we can take whatever actions may be available to mitigate incurred costs in loading and freight.
Delivery cancellations should be advised a minimum of 24 hours (1-working day) prior to the prearranged time & date.
Delivery of Reinforcing Steel is supported regionally via Nauhria's own fleet of flat deck hiab transporters.
Precut-n-bent bars and stock components are securely bundled and individually tagged by item type.
Sites must provide a dedicated safe laydown area with suitable site access for hiab offloading beside the delivery location.
Site accessway must accommodate loaded truck height, length, width and weight, Ground must be well compacted and suitable for heavy delivery vehicles with sufficient space for anti-roll extended stabiliser arms for offloading.
Hiabs are for the unloading of goods only to a dedicated safe laydown location beside the delivery truck. Hiabs are not provided as means of vertical product movement or extended reach across site. All vertical movement +/- floor levels and any horizontal movement greater than 20+/- meters is the contractor's responsibility.
Nauhria Reinforcing operate an in-house delivery system utilizing their fleet of Hi-ab and flat deck trucks.
Products are loaded directly from their Hobill Ave factories and delivered in route to sites daily throughout Auckland and by planned frequency across the North Island of New Zealand.
South Island deliveries can be serviced via long haul freighters or Port to Port.
Nauhria also have experience with international export deliveries throughout the South Pacific Islands and Papua New Guinea by special arrangement.
