Strengthing Reinforced Concrete Retaining Wall

One is the check for an overturning moment and the other one is the check for sliding.

Strengthing reinforced concrete retaining wall.

Strength reduced from 136 7 to 114 9 in kips. Built in english bond the wall was supported on a mass concrete retaining wall. The addition of reinforcement to concrete masonry greatly increases the tensile strength and ductility of a wall providing higher load resistance. Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used.

2 5 clear to strength steel 5 12 rather than the designed 5 10 bending strength of the section has been reduced by about 16. There are two checks to consider the stability of the retaining wall. Rebar is a very sturdy metal that is used inside concrete of buildings sidewalks and other structures to increase its strength. To prevent the collapse of masonry walls during earthquake it is advisable to use reinforced brick masonry walls in new construction.

C 3 6 ksi 4 0 ksi for mse panels reinforced concrete unit weight γ. Out of plane strengthening of partitions can be clubbed together with lateral strengthening of building by providing reinforced concrete jackets to the partitions. Refer to figure a 4 for the mass or weight calculations. In cantilever retaining walls the concrete base or footing holds the vertical masonry wall in position and resists overturning and sliding caused by lateral soil loading.

The brick wall was believed to be constructed from london stocks with a lime mortar and the strengthening scheme was therefore designed assuming a characteristic compressive strength of the masonry of 2 3n mm2. When you use rebar as a bracing material for brick retaining walls it will effectively block any earth that is cascading toward it. B short retaining walls vertical walls up to about 3m in height are usually built as shown in figure 1 b. The stem may have constant thickness along the length or may be tapered based on economic and construction criteria.

For using reinforcement jackets first the plaster is removed from the walls. Or the retained soil behind the reinforced soil and foundation soil below the reinforced soil of mse. Material properties of reinforced concrete elements compressive strength of concrete at 28 days f. Reinforced concrete cantilever retaining walls consist of a relatively thin stem and a base slab.

The weight of the retaining wall including the gravity loads within it plays a vital role in performing the stability check. The base is divided into two parts the heel and toe. Use rebar that is 12 inches taller than the wall is high. C 150 pcf minimum yield strength of reinforcing steel f.

Mortar joints between bricks are cleaned. Reinforced concrete rc jackets technique for strengthening of masonry structure consists of application of jackets on one or both sides of masonry walls.