1. Associate Professor, Civil Engineering School, Univ. of A Coruña, Campus de Elviña s/n, 15071, A Coruña, Spain. E-mail: lcea@udc.es
2. Associate Professor, Civil Engineering School, Univ. of A Coruña, Campus de Elviña s/n, 15071, A Coruña, Spain. E-mail: lpena@udc.es
3. Professor, Civil Engineering School, Univ. of A Coruña, Campus de Elviña s/n, 15071, A Coruña, Spain. E-mail: jpuertas@udc.es
4. Associate Professor, Applied Mathematics Dept., Univ. of Santiago de Compostela, Campus Sur s/n, Santiago de Compostela, Spain. E-mail: maelenav@usc.es
5. Associate Professor, Civil Engineering School, Univ. of A Coruña, Campus de Elviña s/n, 15071, A Coruña, Spain. E-mail: epena@udc.es