Questions
A concrete slab, 40 ft. long, 11 ft. wide, and 9 in. thick, is placed on...

A concrete slab, 40 ft. long, 11 ft. wide, and 9 in. thick, is placed on a subgrade having a modulus of subgrade reaction of 200 pci. A 9000-lb single-wheel load is applied on the edge of the slab over a circular area with a contact pressure of 100 psi. Determine:

  1. The maximum tensile stress due to the 9000-lb wheel load;
  2. The curing stresses (both x and y directions) at the edge during the night when the temperature differential is 13.5°F per inch of slab. (Note: the total temperature differential should multiply slab thickness.)

Use the information: modulus of elasticity of concrete = 4×106 psi, Poisson’s ratio of concrete = 0.15, coefficient of thermal expansion of concrete = 5×10-6 /°F.

In: Civil Engineering

Today, the most significant new factor impacting the construction industry is the "green building, or sustainable...

Today, the most significant new factor impacting the construction industry is the "green building, or sustainable building" movement. & The US Green Building Council initiated a concept and plan that is known as LEED, which stands for Leadership in Energy and Environment Design. This movement is already having the most significant impact on the mechanical, electrical and plumbing systems design that has occurred since the Clean Water Act was passed by the US Congress nearly 40 years ago. The MEP Plans and Specifications are now being changed to comply with the elements of the green building movement.


What do you know about this as-of-now? And, what do you think the short term and long term effects will be on construction?


In: Civil Engineering

Question 2 An outcome of at--site flood frequency analysis is the confidence limit~ on the predicted...

Question 2

An outcome of at--site flood frequency analysis is the confidence limit~ on the predicted peak flow of the flood hydrograph, Qiscuss whether similar flood characteristic prediction Obtained using regional methods (for exampte,Probabilistic Rational Method) should also have confidence limits.

Subject: Flood Estimation

In: Civil Engineering

Question 2 An outcome of an at-site flood frequency analysis is the confidence limits on the...

Question 2

An outcome of an at-site flood frequency analysis is the confidence limits on the predicted peak flow. Discuss whether confidence limits should be detennined also for design flood estimates from catchment modelling systems.

Subject: Flood Estimation

In: Civil Engineering

What is the importance of civil engineering in infrastructural development of society

What is the importance of civil engineering in infrastructural development of society

In: Civil Engineering

Design a hydraulic flocculation tank for 5 MGD.

Design a hydraulic flocculation tank for 5 MGD.

In: Civil Engineering

Types of Structures and Loads

Types of Structures
and Loads

In: Civil Engineering

Explain the mechanisms of slope failure and factors affecting slope stability for various soil types and...

Explain the mechanisms of slope failure and factors affecting slope stability for various soil types and groundwater
conditions.

In: Civil Engineering

The surface tension of a fluid depends upon the viscosity μ, bulk modulus EV, gravity g,...

The surface tension of a fluid depends upon the viscosity μ, bulk modulus EV, gravity g, pressure p, velocity v, density Ƿ, and a characteristic length L. determine the dimensionless groupings. USE MLT and V, L, Ƿ as repeating variables. A your Pi terms among the common dimensionless groups in Fluid Mechanics?

In: Civil Engineering

Flood Mitigation Engineering Please list 3 hazardous factors and 3 vulnerability factors that you think are...

Flood Mitigation Engineering

Please list 3 hazardous factors and 3 vulnerability factors that you think are more important and explain why.

In: Civil Engineering

A simply supported beam carries a UDL of 15kN/m run spread over its entire length of...

A simply supported beam carries a UDL of 15kN/m run spread over its entire length of 4m with 150 mm based and 185.66 mm deep. Calculate deflection at the free end in mm. Take E=2.1x10^5 N/mm2.

In: Civil Engineering

How is a law introduced and passed by the NYS Legislature?

How is a law introduced and passed by the NYS Legislature?

In: Civil Engineering

QUESTION : describe briefly what is Prestress concrete? what are the advantages and disadvantages of prestress...

QUESTION : describe briefly what is Prestress concrete? what are the advantages and disadvantages of prestress concrete? when it use in construction and why? explain in very briefly  what are the failure in pestress concrete while casting? explain at least 10 failure. give the reason of that failure in detail and provide remediation of that failures in detail.

NOTE: need a very brief information about the above questions.

In: Civil Engineering

QUESTION : what are the different kind of ventilation use in tunnel while construction and while...

QUESTION : what are the different kind of ventilation use in tunnel while construction and while in use of tunnel and why?

In: Civil Engineering

please define the complete street. give examples of the positives and negatives of complete street.

please define the complete street. give examples of the positives and negatives of complete street.

In: Civil Engineering