CN110984475A

CN110984475A - Straight groove-shaped component connected by assembly type construction steel bars

Info

Publication number: CN110984475A
Application number: CN201911289858.3A
Authority: CN
Inventors: 王海崴; 王本淼
Original assignee: Hunan BDF Energy Saving Technology Co Ltd
Current assignee: Hunan BDF Energy Saving Technology Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-04-10
Also published as: CN110984474A; CN110984477A; CN110984478A; CN110185203A; CN110984476A

Abstract

The invention provides a straight channel-shaped member connected by an assembly type construction steel bar, which is characterized in that the straight channel-shaped member is formed by channel steel and a screw hole, wherein the steel and the screw hole are blocked at the end of the channel steel; the width of the channel steel is more than 60mm, and the height of the channel steel wall is more than 40 mm; the wall thickness of the channel steel is more than 4 mm; the end port of the channel steel is plugged with steel to plug two end ports of the channel steel; the U-shaped steel is in a U-shaped shape, and two vertical edges of the U-shaped steel are welded with two side wall plates of the U-shaped steel; steel sheets are arranged on the inner wall of the U-shaped steel bottom plate and welded, so that the steel strength of the steel for plugging the end of the channel steel is enhanced; and a screw hole for connecting the steel bars is prefabricated in the plugging steel.

Description

Straight groove-shaped component connected by assembly type construction steel bars

Technical Field

The invention relates to a frame structure assembly type building system technology, in particular to a straight groove-shaped component connected by assembly type building steel bars; this application is a divisional application of the 201910579549.3 original application.

Background

The reinforced concrete assembly type frame structure is a difficult point to be overcome in the assembly type building technology, and the connector of the PC component steel bar of the assembly type building seriously influences the structure safety and the connection cost; the assembly type building is widely popularized in China to promote adjustment of the structure of the building industry, improve the building quality, accelerate the construction speed, realize energy conservation and environmental protection and promote scientific and technical progress of the building; however, the fabricated building of the reinforced concrete frame structure system is not widely used, and the common technology is that a common composite floor slab and a double-T plate floor slab are adopted; and because the beam column node, the superposed formation of the beam and the floor slab and the connection method of the member steel bar of the reinforced concrete frame structure assembly type building are not well solved, the original purpose of reducing the engineering cost in China is not realized, but the cost is increased, the ground gas is not generated, and the development of the assembly type building industry is seriously restricted.

Like the inventor's "an assembly type building cavity floor" authorization notice No. CN106381951B, solved the weight of assembly type building floor, the super large area of floor component, transportation and construction hoist, the flexible connection problem of assembly type building cavity floor and girder, laid a foundation for the assembly type building floor.

In order to realize rigid connection of the assembly type building components, the inventor's ' assembly type prefabricated convex beam ' with the authorization notice number CN208777555U changes the structural form of the main beam, combines the traditional square beam and the wide flat beam into the convex beam, not only solves the superposition form of the beam and the plate, but also realizes the minimization of the superposition height of the assembly type building beam and the plate under the state of rigid connection or flexible connection, thus leading the structure of the reinforced concrete frame structure assembly type building to be innovated and taking a key step.

In order to realize the change of beam-column joints of the fabricated building with the reinforced concrete frame structure, the inventor's ' building with the prefabricated reinforced concrete support ', the application number of which is 201811424448.0; the rigid connection of the support and the beam is carried out from the negative bending moment point of the beam; the dream that no steel bar node exists at the beam column intersection is realized, and the world building problem that no steel bar node exists at the beam column intersection of the fabricated building with the reinforced concrete frame structure is solved; the invention gradually forms the technology of a reinforced concrete assembly type frame structure system, and because the inventor solves the key technology that the beam and floor slab superposition form and the beam column intersection have no reinforced bar node, the invention can save the construction of the frame structure system in the existing assembly type construction from a complicated and expensive assembly type shear wall structure system, and also reduce the construction cost by more than 20 percent; however, the steel bar connection of each assembly type component can only adopt the connection mode of the prior art, such as: binding and connecting reinforcing steel bars, welding, mechanically connecting screw sleeves and connecting outer sleeves in a grouting manner; the binding connection and welding in the methods can not meet the standard requirements; the screw sleeve mechanical connection is characterized in that two fixed component steel bars cannot be connected in a rotating way; the grouting connection of the outer sleeve is very complicated and has high cost, and the outer sleeve has large volume and no space for connecting the steel bars, so the steel bars cannot be connected.

At present, the technology of the assembly type building system of the reinforced concrete frame structure is gradually improved by the initiative of the inventor, in order to further form a system technical system, a straight groove-shaped component connected by the assembly type building steel bars is researched, the purposes that the PC component steel bars of the assembly type building are simply connected, the connection is safe and reliable, the economical efficiency is best are achieved, and the assembly type building system of the reinforced concrete frame structure is an urgent need for innovation in the technical field of the reinforced concrete assembly type frame structure building system.

Disclosure of Invention

The invention aims to solve the problems of a steel bar connection method and a connection device between a frame structure support fulcrum and a convex beam, between the convex beam and a cavity plate member and between the cavity plate member and a cavity plate member in the technology of an assembly type structure system, and transform and upgrade the existing assembly type building structure technology; the straight channel-shaped member connected by the assembly type construction steel bars is adopted, the end plugging steel of the channel steel is U-shaped steel, and two vertical edges of the U-shaped steel are welded with two side wall plates of the channel steel; steel sheets are arranged on the inner wall of the U-shaped steel bottom plate and welded, so that the steel degree of the U-shaped steel bottom plate at the end of the channel steel is enhanced; the method optimizes the steel bar connection technology of the existing assembly type building PC component, and overcomes a series of defects of the steel bar connection method and the connection device of the existing assembly type building PC component.

The technical scheme of the invention is that the straight channel-shaped member connected by the assembly type construction steel bars is characterized in that the straight channel-shaped member is formed by channel steel and a screw hole which is blocked by a channel steel port; the width of the channel steel is more than 60mm, and the height of the channel steel wall is more than 40 mm; the wall thickness of the channel steel is more than 4 mm; the end port of the channel steel is plugged with steel to plug two end ports of the channel steel; the U-shaped steel is in a U-shaped shape, and two vertical edges of the U-shaped steel are welded with two side wall plates of the U-shaped steel; steel sheets are arranged on the inner wall of the U-shaped steel bottom plate and welded, so that the steel strength of the steel for plugging the end of the channel steel is enhanced; and a screw hole for connecting the steel bars is prefabricated in the plugging steel.

According to another preferred scheme, the channel steel port plugging steel is manufactured by two side wall plates of channel steel and a bottom plate of the channel steel.

Another preferred scheme of the invention is that the channel steel is cut along the side wall edge to form a conjoined bottom plate and two conjoined side wall plates.

Another preferable scheme of the invention is that after the channel steel bottom plate and the two side wall plates of the channel steel are bent, a steel die is placed in the channel steel, and a heavy punch or an air hammer is used for impact forming to form a right angle in the bent channel steel.

Another preferable scheme of the invention is that two adjacent PC member steel bars are respectively inserted into the screw holes of the straight channel-shaped member in the screw holes for connecting the steel bars prefabricated in the plugging steel, and the screw caps of the two adjacent PC member steel bars are respectively screwed.

The invention relates to a straight groove-shaped member connected by assembly type construction steel bars, which is characterized in that on the basis of a construction structure design drawing, columns, beams, floor slabs, supports and walls which form a building in the overall structure design drawing are decomposed into a plurality of PC members, a factory organizes the decomposed PC members to produce the PC members with required specification models, and the PC members are transported to a project site.

Drawings

Figure 1 is an illustration of an embodiment of the present invention of a straight channel member channel end cut.

Fig. 2 is a drawing of an embodiment of direct steel end plugging of a channel of a straight channel-shaped member according to the invention.

The specific implementation mode is as follows:

the invention is further described below with reference to the accompanying drawings.

FIG. 1 is a view of an embodiment of the present invention for cutting a channel end of a straight channel member, in accordance with the present invention; determining the size of the sectional area of the channel steel 1 according to the tensile force borne by the steel bar of the PC component to be connected; the channel steel 1 consists of a bottom plate A1 and two side walls A2, and the selected channel steel 1 is cut into required specifications in a mass production mode; cutting a bottom plate A1 of the channel steel 1 along the side wall A2, cutting a cut A6 of a bottom plate A1 of the channel steel 1, and cutting the depth A61 of the cut A6; three integrated plates are formed after the two end heads of the channel steel 1 are cut, namely: a conjoined bottom plate A11 and two conjoined side wall plates A22.

FIG. 2 is a drawing of an embodiment of direct steel plugging of a channel end of a straight channel member according to the present invention, in practice of the present invention; determining the sectional area of the channel steel according to the tensile force borne by the steel bar of the PC component to be connected; the channel steel consists of a bottom plate A1 and two side walls A2, and the selected channel steel is cut into required specifications in a mass production mode; cutting two corners of the channel steel into a channel steel bottom plate A11 and two side wall plates A22, wherein the channel steel bottom plate A11 and the two side wall plates A22 are separated from each other at the channel steel ports; bending a channel steel bottom plate A11 for 90 degrees inwards the channel steel; then bending two side wall plates of the channel steel by 90 degrees oppositely, adjusting the cutting depth of two corners of the channel steel to control the length of the A22 of the two side wall plates of the channel steel, and after the two side wall plates of the channel steel are bent by 90 degrees oppositely, the top points of the two side wall plates are superposed to form the optimal cutting depth; the channel steel bottom plate A11 is bent into the channel steel by 90 degrees, the side wall plates A22 on the two sides of the channel steel are bent by 90 degrees in opposite directions, the end ports of the two ends of the channel steel are combined to be used for blocking the steel, and whether the channel steel bottom plate A11 and the side wall plates A22 on the two sides of the channel steel are welded and reinforced with the channel steel main body or not is determined according to the stress state and the bending accuracy; the bending of the channel steel bottom plate A11 and the channel steel two-side wall plate A22 cannot reach the standard of right angle, after the bending, a steel die is placed in the channel steel, and then in the bent channel steel, two ends of the bent channel steel are impacted and formed into a right angle by a heavy punch or an air hammer. And then drilling screw holes for connecting the reinforcing steel bars of the PC members in the combined channel steel port plugging steel, respectively inserting the two adjacent floor reinforcing steel bars A3 and A4 to be connected into the straight channel-shaped members, and respectively screwing the screw caps A31 and A41 of the two adjacent floor reinforcing steel bars A3 and A4 to be connected.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the specific embodiments of the present invention without departing from the spirit and scope of the present invention, and all modifications or equivalent substitutions should be covered by the claims of the present invention.

Claims

1. A straight channel-shaped member connected by an assembly type construction steel bar is characterized in that the straight channel-shaped member is formed by channel steel, channel steel port plugging steel and screw holes; the width of the channel steel is more than 60mm, and the height of the channel steel wall is more than 40 mm; the wall thickness of the channel steel is more than 4 mm; the end port of the channel steel is plugged with steel to plug two end ports of the channel steel; the U-shaped steel is in a U-shaped shape, and two vertical edges of the U-shaped steel are welded with two side wall plates of the U-shaped steel; steel sheets are arranged on the inner wall of the U-shaped steel bottom plate and welded, so that the steel strength of the steel for plugging the end of the channel steel is enhanced; and a screw hole for connecting the steel bars is prefabricated in the plugging steel.

2. The fabricated structural rebar-connecting straight channel member of claim 1, wherein the channel end plugging steel is made of two side wall plates of the channel and a bottom plate of the channel.

3. A fabricated construction rebar junction straight channel member as claimed in claim 1 wherein the channel steel is cut along the side wall edges into one joined base plate and two joined side wall plates.

4. The fabricated structural rebar joined straight channel member of claim 1, wherein after the channel bottom plate and the channel side wall plates are bent, a steel die is placed in the channel, and the bent channel is impacted and formed into a right angle by a heavy punch or an air hammer.

5. The assembled constructional steel bar connecting straight channel-shaped member as claimed in claim 1, wherein the screw holes of the steel bar connecting prefabricated in the plugging steel are respectively inserted into the screw holes of the straight channel-shaped member by two adjacent PC member steel bars, and the screw caps of the two adjacent PC member steel bars are respectively screwed.