Question

Prob 3 Consider 5 = oL/E. The designer of a concrete bridge pier supported on bedrock was given truck load parameters by the owner. The designer didn't have a inspection contract. The pier settled excessively, such that a legal height truck scraped the beam flanges. The owner sued the designer. What investigations should the designer ask to be done to see if the failure was actually the fault of the owner or the builder? What if it was a steel column?

Answer 1

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can cause increased due to which In the event of failure, the designer could ask for the following investigations? i) Checking whether the bridge was was overloaded as overloading stresses on the pier change in length could occur far ; S=Change length. ii) Checking for the quality of concute used. It a low quality concrete with low young's Modulus is used, then it lead to excessive she may &=oL/ e in shortening of the ,حه length of the pier Thu 1.) If the pier was built in the midde of astream, then it is likely to fail due to scowing effect; in which the stream the authority design with out consi erodes the structure particles. As the designer had not to given inspect the location; he could have made the dering the site parame. ameters. There fore, he can also erame ders and with the parameters supplied by the uvestigate ate the site them Compare owner.

should be Investigate for improper concrete curing of the bridge. Concrete curing inuolues the application of water to a bridges surface that streng then the structure when water and concrete reach. This process done for a couple of weeks to obtain a strong structure, As it increases the compressive strength of the concrete day by day. If this process is not carried out in a well manner; then there could be high yielding in the structure. There fore, the designer could innestigate whether the builder had followed the uring procedure properly or not.

the structure was a sted column Now, if G I 30 GPA the we know Econexete and Esteelt 200 Gila 1 As) & X E i given Same amount of stress due to identical load and cross-section Hence, a steel column is less suspectible to de form under heavy loading.