A cantilever beam shown supports a uniform service (unfactored) dead load of 1 kip/ft plus its own dead load and a concentrated service (unfactored) live load of 12 kips, as shown. The concrete is normal-weight concrete with f'c= psi and the steel is Grade 60. Use load and strength-reduction factors from ACI Code Sections 9.2 and 9.3. For the end section shown in Fig. P4-2b, compute and show that it exceeds Mu.

Q: The design engineer specifies a concrete strength of 31.0 MPa. Determine the required average…

A: Take the standard case s=5. The formula to calculate the average compressive strength is given by,…

Q: Question 1 Design a square shape reinforced concrete colunn to withstand the following dead and live…

A: Square Column: This is the most commonly used in the construction of buildings. It is very easy to…

Q: The maximum applied load on cylindrical diameter 150 mm and length 300 mm a concrete specimen of…

A: Given: The diameter is 150 mm. The length is 300 mm. The applied load is 157 kN.

Q: For pretensioned axially tensioned member, how to calculate the effective prestress established in…

A: 1. The stress remaining in the concrete due to prestressing after the loss of prestress.2. Loss of…

Q: For normal-weight concrete. fé (psi) 3000 4000 5000 6000 7000 8000 9000 Ec (ksc) Let M= fr (psi) n…

A: Answer As per ACI code 318-19 clause 19.2.2, Elastic Modulus for normal weight concrete is given by…

Q: Problem 2: Determine the rebar size in the following beam. The beam span is 22 ft and it is…

A:

Q: A rectangular beam of size 250 mm x 400 mm is reinforced with 4-20 mm bars of Fe415 grade. Effective…

A:

Q: Problem 5: A beam is 250 mm in width, 500 mm in total height and 3.5 meters in length. This beam was…

A: Given data width of beam= 250mm Height = 500mm Length= 3500 mm compressive strength= 32MPa we have…

Q: ve desic Q4) Concrete is required for walls of a building that will be moderately exposed to…

A:

Q: Determine the design strength of the beam. Use F'c= 28 MPa, Fy = 415 MPa, b = 250 mm, d' = 60 mm, d…

A:

Q: On the 28th day after concrete was mixed, a 6.00-in-diameter concrete cylinder failed in a…

A: Given data, Diameter of cylinder d = 6 in Compressive load P = 145000 lb Factor of safety γ0 = 5

Q: Calculate the Flexural strength (Modulus of rupture) of concrete of 4"x 4"x12" beam tested 4500 lbs…

A: The flexural strength of the concrete is calculated by Centre point loading method, σ = 3PL2bd2…

Pricing Concrete Work

The concrete work in a project usually holds a high-end cost in terms of cost and value of the work. It becomes an important step in calculating the cost associated with concrete while preparing the project scale. The cost of making concrete depends on the cost of building materials, mixed materials, labor, and machinery. A concrete contractor builds structures from concrete, usually managing all the steps of the process from assembling ingredients to building a holding structure and preparing the mixture. This person or team oversees the delivery and unloading of goods to ensure that they are done properly. Nowadays, most of the concrete in the United States comes from manufacturers working abroad, usually with branches and plants within the provinces. Contributions can range from pre-mixed concrete to basic ingredients, the consumer company then mixes it. Many American-based concrete companies, however, offer concrete products, such as ballads, bricks, countertop, concrete pipe, and building products, as well as concrete construction and installation materials. This article covers both types of suppliers for this set of building materials.