BCEE 344 Assignment 2: Structural Design Analysis Guide

Assignment 2 BCEE 344 - Second assignement Structural Design I (Concordia University) Scan to open on Studocu Studocu is not sponsored or endorsed by any college or university Assignment 2 BCEE 344 - Second assignement Structural Design I (Concordia University) Scan to open on Studocu Studocu is not sponsored or endorsed by any college or university Downloaded by The Italian Stalion (mikeangelo81087@gmail.com) lOMoARcPSD|7700884

1 Concordia University Department of Building, Civil and Environmental Engineering Structural Design I BCEE 344 ASSIGNMENT No. 2 Beams and Beam-Column Due: November 25, 2022 N ame …………………………………… I.D. …………………………………… Date …………………………………… Tutorial Sect. …...……………………….. Question No. 1 (5 Marks) Conduct research on the Internet on the 1988 “Supermarket Roof Collapse -Burnaby, B. C., Canada” and write a maximum 250 words text explaining the reasons for the collapse, the lessons learned. How has this collapse influenced steel design practice? It is required that you include picture or any other illustration that might help you in depicting your explanation. Please make sure that you credit appropriately any sources you use for this research. Question No. 2 (20 Marks) Select the lightest W310 and W530 sections for beams B3 and G4 respectively , which support a typical floor in multi-bay multi-story building, as shown in the plan view ( Figure 1 ). Specified loads are 2.5 KN/m 2 dead load (including the self weight of the beams) and 4.8 kN/m 2 live load. Assume full lateral supports for the beams. Assume lateral support for girders only at their ends and where the beams are connected to them. Ignore the self-weight of the girders. Check your deflection using a limit of L/360 under live load only. Extra required information:  The steel to be used is ASTM A992 (F y = 345 MPa)  The selections should satisfy CSA S16-19  All beams are connected by simple shear connections  All girders are connected to the columns for shear only Question 3 (20 Marks) A beam-column ( Figure 2 ) consists of a W310x86 section supporting factored loads as shown below. Determine the adequacy of the W310x86 section if the axial load C f = 450 kN. Assume Downloaded by The Italian Stalion (mikeangelo81087@gmail.com) lOMoARcPSD|7700884

2 ASTM A992 steel (F y = 345 MPa). (Use the coefficients of the CISC pages as design aid for this problem). Figure 1 1 2 3 4 A B C D 6750 mm 6750 mm 6750 mm 7000 mm 7000 mm 7000 mm G1 G2 G3 G4 G3 G1 B1 B2 B1 B3 B3 B3 N Downloaded by The Italian Stalion (mikeangelo81087@gmail.com) lOMoARcPSD|7700884

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Question 1: In 1988, the Save-On-Foods store in Burnaby (British Columbia) was getting ready to open until the station square collapse). A 590 m 2 part of the parking collapsed which send the rooftop parking deck and 20 automobiles to the section bellow. Nobody died that day, but 21 people where send to the hospital. The two engineering firms involved in it (Tommy Tacy and MSS Engineering) were found guilty of incompetence and negligence by the panel of five professional engineers governing body. The structure failed due to an inadequate roof design in which the principal error was the supports beams of the structure [1]. The beam was undersized and the buckling resistance of the compression flange, the cantilever beam and beam column were inadequate [2]. The firms also failed to inspect the construction work of the roofs assembly and they did not verify the work of the engineers in training which was directly managing the project. Also, the engineering code of ethics was broken by one of the firm partners by signing and putting his professional seal to plans that were not preprepared or supervised by himself [1]. After the incident the commissioner of inquiry made some changes in steel design practice. In which the firms should now provide structural calculations and drawing during the building permit stage. Also, a detailed review is needed by a random sampling of projects. The structural engineers will need to pass a special examination before being professionally qualified [3]. Furthermore, it is now necessary that architects and engineers provide a formal documentation to the municipality that certifies that at the best of their knowledge the design is conform to the building codes. The lesson learn form it was that more verification was needed in the design of the plans and that the firms needed to be more professionals . Downloaded by The Italian Stalion (mikeangelo81087@gmail.com) lOMoARcPSD|7700884

References [1] Press Book BCCampus, “ 1988 Station Square Collapse aka Save-on Foods Collapse aka Cave-in-Foods ” . [Onlime] https://pressbooks.bccampus.ca/engineeringinsociety/chapter/1988- station-square-collapse-aka-save-on-foods-aka-cave-in-foods/ , Read November 25, 2022. [2] Peter, C and Nathan, D. “ Supermarket Roof Collapse in Burnaby, British Columbia, Canada ” . [Online] https://ascelibrary.org/doi/10.1061/%28ASCE%290887- 3828%281990%294%3A3%28142%29 , Published on august 1990. [3] Failurology, “ Ep 23 Burnaby Supermarket Roof Collapse ” . [Online] https://www.failurology.ca/episodes/ep-23-burnaby-supermarket-roof-collapse , Read November 25, 2022. Downloaded by The Italian Stalion (mikeangelo81087@gmail.com) lOMoARcPSD|7700884

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