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A 45-cm-thick, 300-cm-high lightweight concrete masonry unit wall lies on a 20-cm-thick lightweight plain concrete slab. The 20-cm wide slab is supported by a reinforced concrete beam, which is placed on top of two columns (simply supported beam). The beam cross-section is presented below with eight 16-mm cold-formed steel reinforcing rods. The plan view of a typical floor in the 2-story office building. The cross-sectional view of the system is also presented. Use ASCE7-05 for any needed data.
Determine the reduced live load supported by a typical exterior column located at ground level if the flat roof loading is 1.2 kN/m^2?
A worker is to paint the walls of a square room 8ft high and 12 ft along each side. what surface area in square meters must she cover?
For the data given below, derive the 2-hr unit hydrograph for a watershed having a drainagearea of 216 km^2, assuming a constant baseflow of 20 m^3/s.
The total dissolved inorganic carbon (TIC) of a sample of groundwater is 8.33 mM. The temperature of the aquifer is 15C, the pH is 7.5, and the ionic strength is 0.05 M. What is the H2CO3, HCO3-, CO3 2-, and the partial pressure of CO2? [Use activ..
Suppose that the distance from the lake outlet to the withdrawal cannot be more than 20 mi. What should be the new volume of the lake?
What will the freeway's density and level of service be before and after the ban? (Assume that the trucks are removed and all other traffic attributes are unchanged).
a force is specified by the vector F=160i+80j-120k N.calculate the angles made by F with the postive x y and z axes.
Given an 18-in. concrete conduit with a roughness coefficient of n = 0.013, s = 0.02, and a discharge capacity of 15 cfs, what diameter pipe is required to triple the capacity?
This material is related Geotechnical Engineering, please only answer if you are certain and sure of your answer. An undisturbed soil sample has a dry unit weight of 112 pcf with a specific gravity of solids equals to 2.68.
Briefly describe electron and hole motions in a p-n junction for forward and reverse biases; then explain how these lead to rectification.
Also calculate the deflection of the beam to check that it complies with the design limit of L/200. Only variable actions are required for deflection check.
The factor of safety is defined as the ratio of the stabilizing moment divided by the overturning moment. The densities of concrete and water are = 2.40 and = 1 , respectively. Assume that the dam does not slide.
A falling-head permeability test was carried out on a clay soil of diameter 100 mm and length 150 mm. In 4 minutes the head in the standpipe of diameter 5mm dropped from 680 to 350 mm.
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