濟南型鋼是一種有一定截面形狀和尺寸的條型鋼材,是鋼材四大品種(板、管、型、絲)之一。根據(jù)斷面形狀，型鋼分簡單斷面型鋼和復雜斷面型鋼（異型鋼）。前者指方鋼、圓鋼、扁鋼、角鋼、六角鋼等；后者指工字鋼、槽鋼、鋼軌、窗框鋼、彎曲型鋼等。

Jinan section steel is a kind of strip steel with a certain section shape and size, which is one of the four major varieties of steel (plate, pipe, shape, wire). According to the section shape, the section steel can be divided into simple section section steel and complex section section steel (special section steel). The former refers to square steel, round steel, flat steel, angle steel, hexagonal steel, etc; The latter refers to I-beam, channel steel, steel rail, window frame steel, bending steel, etc.

按照鋼的冶煉質量不同，型鋼分為普通型鋼和優(yōu)良型鋼。

According to different smelting quality of steel, section steel can be divided into ordinary section steel and excellent section steel.

普通型鋼按現(xiàn)行金屬產品目錄又分為大型型鋼、中型型鋼、小型型鋼。普通型鋼按其斷面形狀又可分為工字鋼、槽鋼、角鋼、圓鋼等。

According to the current metal product catalog, ordinary section steel can be divided into large section steel, medium section steel and small section steel. Ordinary section steel can be divided into I-beam, channel steel, angle steel, round steel, etc. according to its section shape.

大型型鋼：

Large section steel:

大型型鋼中工字鋼、槽鋼、角鋼、扁鋼都是熱軋的，圓鋼、方鋼、六角鋼除熱軋外，還有鍛制、冷拉等。

In large section steel, I beam, channel steel, angle steel and flat steel are all hot rolled. In addition to hot rolling, round steel, square steel and hexagonal steel are also forged and cold drawn.

工字鋼、槽鋼、角鋼廣泛應用于工業(yè)建筑和金屬結構，如廠房、橋梁、船舶、農機車輛制造、輸電鐵塔，運輸機械，往往配合使用。扁鋼在建筑工地中用作橋梁、房架、柵欄、輸電船舶、車輛等。圓鋼、方鋼用作各種機械零件、農機配件、工具等。

I-beam, channel steel and angle steel are widely used in industrial buildings and metal structures, such as factory buildings, bridges, ships, agricultural machinery and vehicle manufacturing, power transmission towers, and transportation machinery, often used together. Flat steel is used for bridges, frames, fences, power transmission ships, vehicles, etc. in construction sites. Round steel and square steel are used as various mechanical parts, agricultural machinery accessories, tools, etc.

中型型鋼：

Medium section steel:

中型型鋼中工、槽、角、圓、扁鋼用途與大型型鋼相似。

The medium, groove, angle, round and flat steel of medium section steel are similar to those of large section steel.

小型型鋼：

Small section steel:

小型型鋼中角、圓、方、扁鋼加工和用途與大型型鋼相似，小直徑圓鋼常用作建筑鋼筋。

The processing and use of angle, round, square and flat steel in small section steel are similar to those of large section steel. Small diameter round steel is often used as building reinforcement.

型鋼應用特點：

Features of profile steel application:

根據(jù)不同用途合理分配截面尺寸的高寬比，具有優(yōu)良的力學性能和優(yōu)越的使用性能。

The ratio of height to width of the section size is reasonably distributed according to different uses, which has excellent mechanical properties and superior service performance.

設計風格靈活、豐富。在梁高相同的情況下，鋼結構的開間可比混凝土結構的開間大50%，從而使建筑布置更加靈活。

The design style is flexible and rich. With the same beam height, the bay of steel structure can be 50% larger than that of concrete structure, which makes the building layout more flexible.

結構自重輕。與混凝土結構自重相比更輕，結構自重的降低，減少了結構設計內力，可使建筑結構基礎處理要求低，施工簡便，造價降低。

The self weight of the structure is light. Compared with the dead weight of concrete structure, it is lighter. The reduction of the dead weight of the structure reduces the internal force of the structure design, which can make the foundation treatment requirements of the building structure low, the construction simple, and the cost reduced.

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