This session is not intended to teach concrete design but more of an awareness of why things are the way they are american concrete institute building code requirements for.
Concrete basement wall design example.
Wall design should use the soil pres sure of the next higher class.
And it is made of concrete reinforced concrete.
The retaining wall is fixed to the reinforced concrete slab foundation with a shear key for sliding resistance.
M 29 at 1 829 mm.
Designing a wall to prevent failure in bending requires a proper analysis of the soil loads and an appropriate structural design of the wall.
Step by step calculations for the design of a basement retaining wall example from scratch using asdip retain structural engineering software.
A sideways force against a basement wall puts one face of the wall in tension see figure 1 next page and concrete s tensile strength is much lower than its compressive strength.
That is 45 pcf ft in a sand soil 60 pcf ft in a silt soil and so on.
305 mm thick concrete masonry foundation wall 12 ft 3 66 m high.
The walls are designed using parameters relevant to the london clay.
Using table 4 the wall can be adequately reinforced using no.
Building strong walls a concrete wall s strength depends.
I ve seen many basement wall failures in masonry block foundations equipped with interior rather than exterior footing drain systems.
9 bars at 72 in.
Concrete foundation walls regardless of the type of concrete foundation wall selected the designer needs to determine the nominal and factored loads that in turn govern the type of wall reinforced or unreinforced that may be appropriate for a given application.
No doubt there are many concrete basement walls without reinforcement.
Even though no water table was found the walls will be designed for a water table 2 00m above.
Structural design principles basement walls basement walls are designed as propped cantilevers in reinforced concrete the basement slab acting as the prop at base level.
The following sections detail design methods for both wall types.
Reinforced concrete wall design basics mike o shea p e.
Aci e702 example problems buried concrete basement wall page 5 of 9 calculations references flexure and axial design vertical reinforcement at base of wall using section 14 4 design method walls designed as compression members based on preliminary investigation try 6 bars at an 8 inch spacing 6 8.