The conventional rigid methodand the approximate flexible method.
Structural paving mats.
The structural design of mat foundations can be carried out by two conventional methods.
This type of foundation is suitable when the soil is not compressible.
The slab is idealized as a mesh of rectangular plate finite elements with four nodes at the corners and three degrees of freedom dz rx and ry per node.
Armorflex blocks have specific tested hydraulic capacities and are laced longitudinally with revetment cables to provide ease of handling and rapid installation.
Flat plates beams with a slab underneath like waffle slab construction and beams with a slab on top.
The mats are resistance welded using computer controlled automated welders that produce custom designed flat sheets that can be bent rolled and even galvanized or epoxy coated.
Two way slab and beam.
Structurepoint formerly the pca engineering software group offers concrete design software programs updated to aci 318 14 for concrete buildings concrete structures and concrete tanks.
Armorflex is a flexible interlocking matrix of cellular concrete blocks of uniform size shape and weight used for hard armor erosion control.
Becasue they can be adapted to perform well in a wide range of climate zones and difficult soil conditions.
Reinforced concrete structural software includes programs for column design pcacolumn beam design pcabeam slab design pcaslab wall design pcawall mat design pcamats foundation design tank.
Finite difference and finite element methods can also be used but this section covers only the basic concepts of the first design method.
Flat plate raft is used in the small and lightweight load structure.
Today engineered bar mats are a low carbon high strength steel for structural concrete applications.
There are following types of mat foundation flat plate raft.
Plate thickened under columns.
Types of mat raft foundation.
Keystone began construction of a 23 story high rise in west houston with a successful placement of the mat foundation.
7 600 cubic yards of concrete were placed for the foundation in a continuous operation over a 10 hour period starting at 10 00pm and finishing around 8 00am the next morning.
Spmats program uses the finite element method for the structural modeling and analysis of reinforced concrete slab systems or mat foundations subject to static loading conditions.