CN205387784U - C shaped steel for building - Google Patents

Abstract

The utility model relates to a C shaped steel for building, its structure is the shaped steel body that is the C type by the cross section that steel plate rolling becomes the surface adhesion of shaped steel body has the galvanizing coat, the shaped steel body includes that bottom plate, curb plate and dog -ear go back to the edge, the curb plate by the both sides syntropy of bottom plate is stretched out, and with the face of bottom plate constitutes 90 contained angles, the dog -ear returns along being located the tip of curb plate, and with the board surface parallel of bottom plate, the width that the dog -ear went back to the edge does floor width's 10 - 20%. The utility model discloses a torsional strength improves, both can correspondingly reduce the thickness of C shaped steel body and the volume of using the steel of steel construction, makes the whole weight of building reduce, and the bulk strength improves, and anti -seismic performance improves by a wide margin. The utility model discloses the galvanizing coat of surface adhesion and the connected mode between the steelframe make the anti -corrosion performance of C shaped steel improve by a wide margin, the synchronous improvement of corrosion resistance performance of the steel construction made, and steel structure building's bulk life time is obvious the improvement consequently.

Description

A kind of C-type steel for building

Technical field

This utility model relates to a kind of construction material, specifically a kind of C-type steel for building.

Background technology

Deformed steel is complicated and special-shaped section shaped steel abbreviation, belongs to the one of shaped steel, and is different from the call of simple shape.Difference according to technique, can be divided into again hot rolling deformed steel, cold-drawn deformed steel, clod wash deformed steel, welding deformed steel etc..

In recent years, deformed steel body has been increasingly being applied in building, builds chassis body, forms steel construction.But, owing to building deformed steel body is in the process building chassis body, it is typically all use welding manner and realizes interconnective, and deformed steel body itself does not generally do preservative treatment yet, this results in deformed steel body itself and particularly at weld, oxidation reaction very easily occurs, thus shortening intensity and the service life of steel structure frame, shortening the service life of place building accordingly, this is also an existing steel construction general not high main cause in service life.

Utility model content

The purpose of this utility model is just to provide a kind of C-type steel for building, to solve the problem that steel building anti-seismic performance is poor and service life is relatively low.

This utility model is achieved in that a kind of C-type steel for building, steel plate rolling the cross section become is the shaped steel body of C type, and the surface attachment at described shaped steel body has zinc coat.

Described shaped steel body includes base plate, side plate and knuckle and goes back to edge；Described side plate is stretched out in the same direction by the both sides of described base plate, and with the plate face structure angle in 90 ° of described base plate；Described knuckle returns along the end being positioned at described side plate, and parallels with the plate face of described base plate；Described knuckle goes back to width is described baseplate width the 10 20% of edge.

The described side plate of described shaped steel body has the connecting hole that rivet bolt connects.

This utility model goes back to edge by adding two knuckles in C-type steel, the torsional strength making C-type steel is greatly improved, thus both can reduce thickness and the steel using amount of C-type steel body accordingly, the overall weight making steel construction in building reduces, the bulk strength that can make again steel structure frame improves, and makes the anti-seismic performance of place building be greatly improved.On the other hand, the zinc coat due to the surface attachment at shaped steel body, and, spot welding and rivet bolt can be passed through between steelframe connect, the employing of these measures, it is to avoid the welding operation between steelframe, there is no the destruction of shaped steel body surface zinc coat, the corrosion resistance making C-type steel is greatly improved, and the corrosion resistant performance of made steel construction synchronizes to improve, and therefore the bulk life time of steel construction significantly improves.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

In figure: 1, shaped steel body, 2, zinc coat, 3, base plate, 4, side plate, 5, knuckle go back to edge, 6, connecting hole.

Detailed description of the invention

As it is shown in figure 1, this utility model is to be rolled into molding with galvanized steel plain sheet, the cross section of shaped steel body 1 is C type, and the surface attachment at shaped steel body 1 is improved corrosion-resistant antioxidative zinc coat 2.

Shaped steel body 1 includes base plate 3, side plate 4 and knuckle and returns along 5.The both sides that side plate 4 is from base plate 3 are stretched out in the same direction, and it stretches out highly equal, and the angle in 90 ° with the plate face structure of base plate 3.Knuckle returns along 5 ends being positioned at side plate 4, and parallels with the plate face of base plate 3.It is that the 15% of baseplate width is advisable that knuckle returns the width along 5.Knuckle on two side plates 4 returns along 5 bending formings in opposite directions, makes the cross section of shaped steel body 1 become C type.

The side plate 4 of shaped steel body 1 has the connecting hole 6 of cross-under tightening latch; when building steel structure frame; by these connecting holes can and other shaped steel between adopt riveted joint or the mode of bolt to be fastenedly connected; thus avoid the integral solder between steel structure frame assembly to connect; both the zinc coat 2 on shaped steel body 1 surface had been protected; the construction work making again steel structure frame is simple to operate, and work efficiency improves.

This utility model compact conformation, torsional property is high, reduces steel construction cost, it is ensured that the Stability Analysis of Structures of building body is firm.

Claims (2)

1. a C-type steel for building, is characterized in that, steel plate rolling the cross section become is the shaped steel body of C type, and the surface attachment at described shaped steel body has zinc coat；

Described shaped steel body includes base plate, side plate and knuckle and goes back to edge；Described side plate is stretched out in the same direction by the both sides of described base plate, and with the plate face structure angle in 90 ° of described base plate；Described knuckle returns along the end being positioned at described side plate, and parallels with the plate face of described base plate；Described knuckle goes back to width is described baseplate width the 10 20% of edge.

2. C-type steel for building according to claim 1, is characterized in that, has the connecting hole that rivet bolt connects on the described side plate of described shaped steel body.