You are working for a Structural Engineering Design company as a trainee structural engineer. Your line manager ( the senior structural engineer) wants to assist your learning and has set

Task 1

Determine the following by calculations and diagrams: bending moments and shear force in simply supported steel beams with point loads and uniformly distributed loads.

Part a)

Calculate the support reactions of beam Figure 1 and draw the shear force and bending moment diagrams identifying the value for the maximum positive and negative values of bending moment. (Tutor to assign individual loading values see Table below for examples*)

Figure 1

Part b)

Calculate the support reactions of beam Figure 2 and draw the shear force and bending moment diagrams identifying the value for the maximum positive and negative values of bending moment. (Tutor to assign individual loading values see Table below for examples*)

Figure 2

Task 2

a) Discuss the statutory requirements for structural design safety.

b) For the situation below (Figure 3) determine all possible valid load combinations and valid partial factors of safety for live loads, dead loads and imposed loads; based on current codes of practice and regulations (Eurocodes).

Figure 3

c) Evaluate how maximum bending moments determine steel beam selection, using current codes of practice and approved documents in terms of economics and safety.

Task 3

a) For the mild steel beam 533 x 165 UB 66 shown below in Figure 4 calculate the maximum deflection and determine if this satisfies serviceability limit state. The loads are all unfactored imposed loads.

Figure 4

b)    Using Macaulay’s Theorem determine the maximum deflection of the beam shown in Figure 5.

Figure 5

c) Explain how the deflection of beams can affect structural stability.

d) Investigate the different types of support for beams, analyse how they affect the deflection of a beam and how the deflection affects structural stability in designs.

Task 4

a) Describe the concepts of slenderness ratio and effective length and explain how this affects the load carrying capacity of columns.

b) Investigate the materials used in structural design of beams and columns in fixed structures and analyse their load carrying capacity, size, weight and corrosion resistance properties.

Task 5

The lead structural engineer has asked you to determine the maximum axial load that can be carried for the scenarios below:

Scenario 1

Use a 203×203 UC86 with pinned ends a grade S355.

Scenario 2

250×250 square concrete column.

Grade of concrete C35/45.

Reinforcement 4H25 bars.

Task 6

For the scenario below assess the most effective support method, in terms of ease and speed of construction, economics, safety and environmental factors.  Consider different materials and different joint systems.

A four storey office block has a grid spacing of 5.6 m x 4.4 m.  The floors are 180 mm deep reinforced concrete (rc) with a sand cement screed of 80 mm spanning the shorter distance. 140 mm fair face concrete block walls are built on the 4.4 m spanning beams. Floor to floor height is 3.6 m.

Task 7

Develop a design solution in either steel or concrete, including beam designs and column designs, for the scenario below:

A four-storey office block with a grid spacing of 5.6 m (5 bays) x 4.4 m (4 bays).

The floors are 180 mm deep reinforced concrete (rc) with a sand cement screed of 80 mm.

External Envelope

100 mm facing brick external leaf.

100 mm cavity filled with mineral wool.

140 mm fair face concrete block walls internal leaf.

Floor to floor height is 4.0 m.

Part A

Design reinforced concrete beams to span in each of the grid directions spanning both 5.6 m and 4.4 m. Ensure the beam will satisfy ultimate and serviceability limit state.

Assume the columns are fully restrained.

Part B

Design structural steel beams to span in each of the grid directions spanning both 5.6 m and 4.4 m. Ensure the beam will satisfy ultimate and serviceability limit state.

Assume the steel columns are partially restrained.

Task 8

For the structural designs for the reinforced concrete beams and the structural steel beams as produced in Task 7 provide appropriate drawings and specifications in support of a structural design solution.

Provide details of concrete strength, size of beam and detail the reinforcement required.

Task 9

Evaluate the use of an alternative material in achieving a design solution, discussing the benefits or challenges associated. This report will also appraise the use of composite construction.

Finally, with reference to the beam and column analysis in this assignment assess the use of Building Information Modelling (BIM) in the production of accurate structural design information and the collaborative environment of structural design.

Your report should be suitably titled, contain a contents page, use citations from      researched construction related sources and include around 10 references.

Instructions and guidance to candidates

Note: All information sources and resources, including websites used to complete this assignment must be stated and correctly referenced in the document and/or presentation. No credit will be given for wholesale copying from information sources and checks for plagiarism may be made on your submitted work.

*Please access HN Global for additional resources support and reading for this unit. For further guidance and support on report writing please refer to the Study Skills Unit on HN

Global www.highernationals.com

Learning Outcomes and Assessment Criteria

Pass

Merit

Distinction

D2 Assess the most effective support method for a given scenario, in terms of ease and speed of construction, economics, safety and environmental factors.

P2 Discuss the statutory requirements to ensure safety in structural designs.

P4 Explain how deflection in beams affects structural stability.

P6 Determine the axial load carrying capacity of steel columns and reinforced concrete columns.

P8 Produce drawings and specifications in support of a structural design solution.