The building, designed by Fr. Roque Ruaño, O.P., is the first earthquake-resistant building in the Philippines. Ruaño was influenced by Frank Lloyd Wright's Imperial Hotel, Tokyo.
Design and structure
In 1920, Roque Ruaño was assigned to draw up plans for the UST Main Building to be constructed at the Sulucan property of the Dominican Order. During the years 1922 and 1923, the plans were finally completed. However, some fine tunings may have been made on the design criteria as a result of the new lessons learned from the Great Kantō earthquake of September 1, 1923 which flattened Tokyo and Yokohama. Eventually, construction began in 1924. The structure is a rectangular building having a dimension of 86 meters long and 74 meters wide with two interior courtyards or patios. The most significant feature is the fact that it is actually made up of 40 separate structures independent from one another with the only opportunity provided by pre-cast stab flooring. But some locations of the separations are now difficult to determine exactly because of the numerous cosmetic changes the interior of the building which has undergone over the years. According to an article written by the former dean of Faculty of Engineering, Manuel Mañosa, this is how it is divided:
two stair section adjacent to tower and elevator core
Statues
Standing on the pedestals of the fourth floor of the building are statues symbolizing the spiritual and intellectual aspiration of the University. Designed by the Italian Francesco Monti, faculty member of the College of Architecture, they were installed between 1949 and 1953.
Surrounding the clock, the so-called "Tria Haec" are three statues representing, from left to right:
* Hope
* Faith
* Love
To the right of the Tria Haec are theologians and historians:
Construction began on 1924 and first classes were held on July 2, 1927. The faculties of Philosophy and Letters, Liberal Arts, Faculties of Medicine and Pharmacy, Faculty of Engineering, and the College of Education were the first occupants who transferred to the new building. Since then, the Main Building has been the focal point of the campus. It is where all succeeding structures revolved. After the invasion and occupation of the Philippines by the Japanese during World War II, the Japanese converted the university into the Santo Tomas Internment Camp for Americans and other non-Filipinos starting on January 4, 1942. Three floors of the building were occupied by the internees. Several internees were located in the Education Building and other buildings. On February 3, 1945, during the Battle for Manila the university was liberated by the 1st Cavalry Division, tanks from the 44th Tank Battalion and Filipino guerrillas. On February 4, Japanese commander Toshio Hayashi took some of the internees hostage in the nearby Education Building and negotiated for the Japanese soldiers to rejoin Japanese forces in the south of the city in exchange for the internees. A plaque dedicated in 1954 commemorates the event. After the war, UST resumed operation, holding classes in the building. The university and the building was visited by Pope Paul VI in 1970 and Pope John Paul II in 1995 when UST hosted World Youth Day 1995.
