Nearly nine months after a stray fireworks rocket set alight a 520-foot tower during Lunar New Year celebrations, destroying part of downtown Beijing’s massive new state television headquarters, the project’s chief architect was quoted as saying that reconstruction of the fire-gutted building would begin soon and should be finished next year. The architect, Ole Scheeren of the Rotterdam-based firm OMA, said that an official inquiry into the fire was almost complete and that preparations were under way to begin repairs to the building, known as the CCTV Cultural Center, The Associated Press reported Thursday. The fire, on the last evening of China’s Lunar New Year celebrations, erupted as officials of China Central Television staged a spectacular and illegal fireworks display on the grounds of their new complex. At least 20 people are reported to have been arrested or detained in connection with the fire.