One World Trade Center and Two World Trade Center, commonly referred to as the Twin Towers, were designed by architect Minoru Yamasaki as framed tube structures, which provided tenants with open floor plans, uninterrupted by columns or walls.

One World Trade Center (WTC 1), the "North Tower", was, at 1,368 ft (417 m), six feet taller than Two World Trade Center (WTC 2), the "South Tower", which was 1,362 ft (415 m) tall. Numerous closely spaced perimeter columns provided much of the structural strength, along with gravity load shared with the steel box columns of the core. [ 23 ]

2 World Trade Center (2 WTC; also known as 200 Greenwich Street) is a skyscraper being developed as part of the rebuilt World Trade Center complex in Manhattan, New York City. [1]

Abstract: This paper summarizes the primary structural systems that comprised World Trade Center 1, World Trade Center 2, and World Trade Center 7, which were destroyed in the terrorist attacks of September 11, 2001. There were four major structural subsystems in the towers: the exterior walls, the core, the floor system, and the hat truss.

2011年9月14日 · What were World Trade Center (WTC) Buildings 1 and 2? The original WTC Buildings 1 and 2 (WTC 1 and WTC 2; also known as the North Tower and South Tower, respectively) were two 110-story skyscrapers within the WTC complex in New York City's Lower Manhattan Central Business District.

2012年8月30日 · This paper summarizes the primary structural systems that comprised World Trade Center (WTC) 1, 2, and 7, which were destroyed in the terrorist attacks of September 11, 2001. There were four major structural subsystems in the towers: the exterior walls, the core, the floor system, and the hat truss.

The WTC towers, also known as WTC 1 and WTC 2, were the primary components of the seven building World Trade Center complex. Each of the towers encompassed 110 stories above the Plaza level and seven levels below.

世界贸易中心（World Trade Center），是位于美国纽约曼哈顿岛西南端的一个建筑群，始建于1966年8月25日，由2座110层并立的塔式摩天楼与1座8层、2座9层、1座22层、1座47层的大楼组成。

2012年8月12日 · The National Institute of Standards and Technology (NIST) conducted an extensive investigation of the collapse of World Trade Center towers (WTC 1 and WTC 2) and the WTC 7 building. This paper describes the reconstruction of impact damage to each of the WTC buildings, as well as analytical studies related to the WTC building collapses.

Das World Trade Center [wɝːldˈtɹeɪdˌsɛntɚ] (deutsch Welthandelszentrum, abgekürzt WTC) war ein im Jahr 1973 eröffneter Bürokomplex im Financial District an der Südspitze von Lower Manhattan in New York City. Er bestand aus sieben Gebäuden; sein Kernstück bildeten die weltbekannten Zwillingstürme (Twin Towers, WTC 1 und 2).