Complex Engineering problems and Complex Engineering Activities in the Program Outcomes • PO (h) Ethics (K7) Complex Eng
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L=20.75 feet. a=20.75 feet. Top chords AISC shape L10×10×0.88 . Bottom chords AISC shape W18×130.
Web members AISC shape WT15 ×66 .P=16.5 kips.
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Course Outcomes as detailed in the Course Outline of CEE331 2.2 COURSE OUTCOMES (COS): 2.2.1 CO1: Apply the basic principles of analysis of statically indeterminate structures and select an appropriate method of analysis. 2.2.2 CO2: analyze statically indeterminate beams, frames and trusses by the Moment distribution method, force method and stiffness method. 2.2.3 CO3: Develop stiffness matrices for beam member, truss member and frame member and assemble the matrices. 2.2.4 CO4: Apply linear Algebra based matrix operations and Office applications to solve structural engineering problems. 2.2.5 CO5: Compare and analyze various structural designs in context of a complex engineering problem. 2.2.6 CO6: Express, judge, defend and conclude a structural design based on its analysis results.
CO6 CO5 H H M L L M L H H L L H M I L H H POS (a) Engineering Knowledge (b) Problem analysis (c) Design/development of solutions (d) Investigation (e) Modern tool usage (f) The engineer and society (g) Environment and sustainability (h) Ethics (i) Individual work and teamwork (j) Communication (k) Project management and finance (1) Life-long learning presented in the course outline Mapping of course outcomes to BSCEE program outcomes as
Problem Statement: A highway bridge is to be designed across a canal having the following section view. The width of the highway is 75 ft having four lanes and shoulders. The width of the bridge deck will be 60 ft including four lanes, divider and walkway along both sides. Reinforced concrete abutments are planned as shown in the figure below. The center to center distance between the two abutments is the total span. Design of abutments are beyond the scope of this assignment. span
Option 1: Steel deck supported on two parallel Steel trusses Two problems: Problem 1a with Marks 50+ Problem 1b with Marks 30 = Total Marks 80
Truss Geometry and loads P 2 P 2 P 6 @ L ft=6Lft 2 P P 0.25 a ft 0.5 a ft a ft
Tasks: Problem 1a -Stiffness Method Total = 50 ● Draw the truss. Put node numbers, member numbers and degrees of freedom numbers (CO1) (K3) (P1) [Marks: 10] ● Calculate all member stiffness matrices in the global coordinate system and assemble them in a structure stiffness matrix, i.e. k matrix. (CO3) (K4) (P1, P2) [Marks: 20] • Write the stiffness equation, solve for unknown displacements and calculate unknown forces by matrix operations. You may use Microsoft excel for calculations but you have to submit handwritten papers. (CO4) (K2) [Marks: 20] • All calculations must be shown in handwriting, no printouts are allowed.
Problem Statement: A highway bridge is to be designed across a canal having the following section view. The width of the highway is 75 ft having four lanes and shoulders. The width of the bridge deck will be 60 ft including four lanes, divider and walkway along both sides. Reinforced concrete abutments are planned as shown in the figure below. The center to center distance between the two abutments is the total span. Design of abutments are beyond the scope of this assignment. span
Truss Geometry and loads P 2 P 2 P 6 @ L ft=6Lft 2 P P 0.25 a ft 0.5 a ft a ft
Tasks: Problem 1a -Stiffness Method Total = 50 ● Draw the truss. Put node numbers, member numbers and degrees of freedom numbers (CO1) (K3) (P1) [Marks: 10] ● Calculate all member stiffness matrices in the global coordinate system and assemble them in a structure stiffness matrix, i.e. k matrix. (CO3) (K4) (P1, P2) [Marks: 20] • Write the stiffness equation, solve for unknown displacements and calculate unknown forces by matrix operations. You may use Microsoft excel for calculations but you have to submit handwritten papers. (CO4) (K2) [Marks:20]