Steel structure exhibition center glass dome




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What is the difference between a girder, rafter, and purlin in steel structures?

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  In steel structures , girders, rafters, and purlins are all structural components that play different roles in supporting the building's load and providing stability. Here's a breakdown of each: 1. Girder:     - A girder is a large horizontal beam that supports other beams or loads across an open space, such as a roof or floor.     - Girders are typically placed perpendicular to the beams they support and are designed to carry heavy loads over long spans.     - In steel construction, girders are often used in building frames and bridges to distribute loads from the beams to the columns or supports. 2. Rafter:     - A rafter is a sloped structural member that supports the roof covering and transfers its load to the walls or other supporting elements.     - Rafters are commonly used in roof framing to provide structural support and to create the pitched shape of the roof.     - In steel constr...
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ROOFING CONSTRUCTION TECHNOLOGY OF SADDLE-SHAPED OVERHANGING STEEL STRUCTURE RETICULATED SHELL SKIRT BUILDING OF HANGZHOU GATE SUPER HIGH-RISE BUILDING

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  Hangzhou Century Center, which is the tallest building under construction in Hangzhou and the tallest twin tower building in the Hangzhou Bay area, is known as the gate of Hangzhou. The wings of the two towers of Hangzhou Gate, together with the surrounding Olympic Sports Center, natatorium, International Expo Center, as well as the civic center, international Convention center, and grand Theater on the other side of the Qian River, form a "seven-star bright" urban picture. The Gate of Hangzhou is like a cloud floating in the seven stars, with a strong sense of design and visual impact.   The main body of Hangzhou Gate is composed of symmetrical 63-story east and west towers, with a building height of 302.6m and a total construction area of about 532,500 square meters. The east and west towers are connected by steel arch Bridges on the 1st to 6th floors above ground. The maximum span of the bridge is 85m at the north and south ends, the minimum span is 55m in the middle...
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The Development of the Structural Form of Gas Station Canopy

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Since Portland cement was invented in 1824, after half a century of research and development, it was not until the middle of the 19th century that concrete structures began to be applied. Because the quality of concrete and cement was relatively poor at that time, and the theory of design technology had not yet started, the development was relatively slow. At the end of the 19th century and the beginning of the 20th century, China began to build buildings with reinforced concrete structures, such as Shamian in Guangzhou and The Bund in Shanghai. However, when our country was first established, the steel output was very low, only 1.35 million tons per year. At that time, the construction of steel structures in China could only rely on the economic and technical assistance of the Soviet Union. It can be seen that the appearance of reinforced concrete structures in China was earlier than steel structures. The structure of the gas station canopy in China was a reinforced concrete frame s...
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