Civil Engineering Homework Help

About Civil Engineering

Civil engineering questions here are the mechanics of structures and materials: beams under load, shear force and bending moment, stress and strain, concrete and soil. Most arrive as a loaded beam in a figure with reactions to find and diagrams to draw.

Popular topics in Civil Engineering

• Beams & Supports

  Simply supported and cantilever beams, point and uniformly distributed loads, and reactions at supports.

• Shear Force & Bending Moment

  Drawing both diagrams, locating maximum values, and the point of contraflexure.

• Stress & Strain

  Direct and shear stress, strain, Young's modulus, the elastic limit and the stress-strain curve.

• Trusses

  Method of joints and method of sections, zero-force members, and ties against struts.

• Concrete & Materials

  Compressive strength, testing cylinders and cubes, reinforcement and the properties concrete needs.

• Soil Mechanics & Hydraulics

  Soil classification, bearing capacity, water pressure and flow, and foundations and dams.

How ScanSolve helps with Civil Engineering

ScanSolve takes moments about a support to find the reactions before anything else, showing the equilibrium equations in full, because every beam question stands on them. Shear force and bending moment diagrams are described section by section with the values at each change.

Stress and strain answers keep the units and the area explicit, and state whether a result lies inside the elastic region. Where a question gives a figure, the answer names the members or sections it is referring to rather than pointing vaguely at the diagram.

Study tips for Civil Engineering

1. 01

   Find the reactions first, by taking moments about one support. Everything else depends on them.

2. 02

   Draw shear force and bending moment diagrams under the beam, aligned with it, so the changes line up with the loads.

3. 03

   Check units on stress: N/m² is a pascal, and areas in mm² need converting before you compare with a modulus in GPa.

4. 04

   Remember the bending moment is maximum where the shear force crosses zero. It saves searching for it.

Frequently asked Civil Engineering questions

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