世界貿易中心七號大樓
7 World Trade Center

context: zh_tw: 世貿中心七號新大樓於 2002 年開工，並於 2006 年完工。大樓樓高 52 層（外加地下一層），是紐約市排名第 28 高的建築物。新大樓的基地面積跟原先相比稍微縮小，以使格林威治街（從翠貝卡起穿越世貿一直延伸到南方的砲臺公園）得以重建。新樓周邊是格林威治街、維斯街、華盛頓街和巴克萊街。格林威治街對面的一座小公園曾是舊樓的一部分。新樓的設計針對安全性做考量，核心結構為鋼筋混凝土，並加寬安全樓梯，以及更厚實的鋼樑防火塗層。此外，新大樓也有許多永續設計的特色。世貿中心七號大樓是紐約市第一棟獲得美國綠建築協會領先能源與環境設計（LEED）認證的商業辦公大樓。同時也是一個參與綠建築協會領先能源與環境設計－結構體開發（LEED-CS）前導專案的建築計劃。
en: On September 11, 2001, the structure was damaged by debris when the nearby North Tower of the World Trade Center collapsed. The debris also ignited fires, which continued to burn throughout the afternoon on lower floors of the building. The building's internal fire suppression system lacked water pressure to fight the fires, and the building collapsed completely at 5:21:10 pm, according to FEMA, while the 2008 NIST study placed the final collapse time at 5:20:52 pm. The collapse began when a critical internal column buckled and triggered structural failure throughout, which was first visible from the exterior with the crumbling of a rooftop penthouse structure at 5:20:33 pm. The collapse made the old 7 World Trade Center the first tall building known to have collapsed primarily due to uncontrolled fires, and at the time, the only steel skyscraper in the world to have collapsed due to fire.Construction of the new 7 World Trade Center began in 2002, and was completed in 2006. The building is 52 stories tall (plus one underground floor), making it the 28th-tallest in New York. It is built on a smaller footprint than the original, and is bounded by Greenwich, Vesey, Washington, and Barclay Streets on the east, south, west, and north, respectively. A small park across Greenwich Street occupies space that was part of the original building's footprint. The current building's design emphasizes safety, with a reinforced concrete core, wider stairways, and thicker fireproofing of steel columns. It also incorporates numerous green design features. The building was the first commercial office building in New York City to receive the U.S. Green Building Council's Leadership in Energy and Environmental Design (LEED) certification, where it won a gold rating. It was also one of the first projects accepted to be part of the Council's pilot program for Leadership in Energy and Environmental Design – Core and Shell Development (LEED-CS).
qas: question: zh_tw: 此建築物多高？
en: How tall was the building?
answers: zh_tw: text: 高 52 層
en: text: 52 stories tall

context: zh_tw: 同年 11 月，所羅門兄弟暫停在中城哥倫布圓環建一個大型新複合商業區的計劃，並同意租賃世貿中心七號大樓最上面 19 個樓層長達 20 年。該建築於 1989 年經過全面翻新，以符合所羅門企業的需求。因此建築便更名為所羅門企業大廈（Salomon Brothers building）。共三個樓層清空給所羅門企業使用，同時租戶仍可繼續使用其他樓層，並且新增超過 350 噸的鋼材以構建三個雙倍高度的樓層。五樓則安裝了 9 臺柴油發電機作為備用發電站的一部分。
en: Spicer & Oppenheim agreed to lease 14 percent of the space, but for more than a year, as Black Monday and other factors adversely affected the Lower Manhattan real estate market, Silverstein was unable to find tenants for the remaining space. By April 1988, he had lowered the rent and made other concessions.In November 1988, Salomon Brothers withdrew from plans to build a large new complex at Columbus Circle in Midtown, and agreed to a 20-year lease for the top 19 floors of 7 World Trade Center. The building was extensively renovated in 1989 to accommodate the needs of Salomon Brothers. This led to the alternative naming of the building as the Salomon Brothers building. Most of three existing floors were removed as tenants continued to occupy other floors, and more than 350 tons (U.S.) of steel were added to construct three double-height trading floors. Nine diesel generators were installed on the 5th floor as part of a backup power station. "Essentially, Salomon is constructing a building within a building – and it's an occupied building, which complicates the situation", said a district manager of Silverstein Properties. The unusual task was possible, said Larry Silverstein, because it was designed to allow for "entire portions of floors to be removed without affecting the building's structural integrity, on the assumption that someone might need double-height floors."At the time of the September 11, 2001, attacks, Salomon Smith Barney was by far the largest tenant in 7 World Trade Center, occupying 1,202,900 sq ft (111,750 m2) (64 percent of the building) which included floors 28–45. Other major tenants included ITT Hartford Insurance Group (122,590 sq ft/11,400 m2), American Express Bank International (106,117 sq ft/9,900 m2), Standard Chartered Bank (111,398 sq ft/10,350 m2), and the Securities and Exchange Commission (106,117 sq ft/9,850 m2). Smaller tenants included the Internal Revenue Service Regional Council (90,430 sq ft/8,400 m2) and the United States Secret Service (85,343 sq ft/7,900 m2). The smallest tenants included the New York City Office of Emergency Management, National Association of Insurance Commissioners, Federal Home Loan Bank, First State Management Group Inc., Provident Financial Management, and the Immigration and Naturalization Service. The Department of Defense (DOD) and Central Intelligence Agency (CIA) shared the 25th floor with the IRS. (The clandestine CIA office was revealed only after the 9/11 attacks.)  Floors 46–47 were mechanical floors, as were the bottom six floors and part of the seventh floor.
qas: question: zh_tw: 為建築物添加了多少鋼材？
en: How much steel was added to the structure?
answers: zh_tw: text: 350 噸
en: text: 350 tons