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Marcus's method is a structural analysis used in the design of reinforced concrete slabs.The method was developed by Henri Marcus and described in 1938 in Die Theorie elastischer Gewebe und ihre Anwendung auf die Berechnung biegsamer Platten. [1]
The Wood–Armer method is a structural analysis method based on finite element analysis used to design the reinforcement for concrete slabs. [1] This method provides simple equations to design a concrete slab based on the output from a finite element analysis software.
The model is based on fracture mechanics theory and takes into account the size effect, particularly for the factor which differentiates from expected from the first model. In the case of concrete tensile failure with increasing member size, the failure load increases less than the available failure surface; that means the nominal stress at ...
The humidity content of concrete is one of the main influencing factors of CO 2 diffusion in concrete. If concrete pores are completely and permanently saturated (for instance in submerged structures) CO 2 diffusion is prevented. On the other hand, for completely dry concrete, the chemical reaction of carbonation cannot occur.
Creep and shrinkage of concrete are two physical properties of concrete.The creep of concrete, which originates from the calcium silicate hydrates (C-S-H) in the hardened Portland cement paste (which is the binder of mineral aggregates), is fundamentally different from the creep of metals and polymers.
Another common type of shallow foundation is the slab-on-grade foundation where the weight of the structure is transferred to the soil through a concrete slab placed at the surface. Slab-on-grade foundations can be reinforced mat slabs, which range from 25 cm to several meters thick, depending on the size of the building, or post-tensioned ...
USDA loan modification: With a USDA loan, you can modify your mortgage with an extended term of up to 40 years, reduce the interest rate and receive a “mortgage recovery advance,” a one-time ...
This unbalanced moment is distributed to members BA and BC in accordance with the distribution factors = and =. Step 2 ends with carry-over of balanced moment M B C = 3.867 k N m {\displaystyle M_{BC}=3.867\mathrm {\,kN\,m} } to joint C. Joint A is a roller support which has no rotational restraint, so moment carryover from joint B to joint A ...