Concrete Block Wall Design Guide
Retaining wall structure is commonly constructed to retain earth mass or back fill materials.
Concrete block wall design guide. The retained soil exerts an active pressure on the infill material above the heel of the base in type 1 and this in turn exerts. Building codes and retaining walls 5. Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance. The walls described in this guide are gravity earth retaining structures consisting of a reinforced concrete footing and a reinforced concrete masonry cantilever stem figure 1 1.
Design method this guidance document is primarily concerned with the design of retaining walls rather than free standing walls. The depth and size of the foundation will vary depending on the size of the concrete block wall and the weight it must support but a typical freestanding wall requires a foundation that is about twice as wide as the wall itself and which extends about 1 foot down below the frost line. Reference guide for designing retaining walls using interlocking concrete blocks epcl 2017 rwrg 01 p01 june 2017 3 2. Concrete strength al ൯ne for an 10 thick wall with 5 10 and 2 5 clear to strength steel will only reduce the nominal moment capacity of the secti對on from 136 68 to 135 66 inch kips 尩 if the concrete strength decreased from 3 5 to 3 0 ksi.
Forces on retaining walls 6. The new zealand concrete masonry manual which was created in the late 1970s as a guide to the design and construction of concrete masonry has been updated and is available in. Soil bearing and stability 8. Soil mechanics simplified 4.
Including masonry blocks masonry bricks fire and acoustic wall systems segmental block retaining walls and paving products. What s in this guide the national masonry blocks and bricks guide this book details a comprehensive selection of decorative structural fire and acoustic walling solutions not available with other materials. Follow the block manufacturer s instructions for wall height limits. The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding. Foundation all concrete block walls must rest on a sturdy foundation of poured concrete. Earthquake seismic design 7.