Note maximum exposed height of 8 feet on a descending slope and 13 ft limit for a single depth wall.
Concrete crib wall dimensions.
Typical section through a single cell crib wall showing the header elements that tie the wall together into the slope.
Andacrib is a modular precast concrete crib retaining wall system which has been designed to cater for the most onerous loading conditions demanded of structures within the highway industrial and commercial sectors.
Andacrib is a modular pre cast concrete crib retaining wall system which has been designed to cater for the most onerous loading conditions demanded of structures in highway rail industrial and commercial sectors.
The units shall be cast in rigid steel forms and the concrete compacted by placing a form on a vibrating table.
Aashto lrfd bridge design specifications n 8 f 3 6 ksi f 60 ksi c y of walls 9 high and higher.
This figures assume backfilling with crushed rock.
276 04 precast concrete crib wall components 1.
Provide proprietary precast concrete crib wall systems of reinforced segmental or prestressed concrete interlocking or pinned stretchers and headers of the dimensions as documented.
Combinations of header sizes can be used for different wall heights and walls even up to 20m in height can be catered for.
Heights typically vary from 2 m to 12 m.
Crib wall components shall consist of proprietary precast concrete crib wall systems of reinforced segmental or prestressed concrete interlocking or pinned stretchers and headers of the dimensions as shown on the drawings.
Place 2 filler blocks midspan between stretchers in the bottom 2 levels all stretchers are 12 0 except as noted.
They are very adaptable and can be straight curved or angled and incorporate landscape features if required.
Intense compaction of the crib components should be achieved.
Andacrib is structurally engineered concrete crib walling system utilising the long established gravity wall concept.
Reinforced concrete crib wall 1.
Andacrib s unique design incorporating generous header to header bearing surfaces ensures that all primary loads are remote.
Concrib walls are designed as gravity retaining walls using a system of four header sizes for various wall heights.
The purpose designed interlocking concrete crib walling components form a series of open cell modules.
Crib walls are commonly used for residential purposes such as stabilising building platforms and driveway access.
Provide retention when cutting into an embankment to create more space.
All the above cribwall components are manufactured from 50mpa concrete with 25mm cover to reinforcement.
Andacrib is ireland s premier pre cast concrete cribwall retaining wall system.
3 1 precast concrete crib wall components proprietary systems type.