CN209975876U

CN209975876U - Steel bar layer and interval combined controller

Info

Publication number: CN209975876U
Application number: CN201920576436.3U
Authority: CN
Inventors: 张晓亮; 张玉民; 董豪
Original assignee: China Railway 12th Bureau Group Co Ltd; Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Current assignee: China Railway 12th Bureau Group Co Ltd; Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-21
Anticipated expiration: 2029-04-25

Abstract

The utility model belongs to the technical field of city subway engineering reinforced concrete structure construction, specifically be a reinforcing bar layer, interval joint controller. The concrete protective layer is characterized by comprising a limiting block and a limiting rod, wherein the limiting block is used for limiting the distance between reinforcing steel bars and the thickness of a concrete protective layer, the limiting block comprises a galvanized square pipe and a limiting steel plate, the upper side and the lower side of the galvanized square pipe are respectively welded with the symmetrically arranged limiting steel plates, a plurality of circular arc-shaped reinforcing steel bar clamping grooves are formed in the limiting steel plates, the limiting rod comprises a hollow rod pipe with a U-shaped adjusting seat at the end and a tooth pipe with a U-shaped adjusting seat at the end, the tooth pipe penetrates through the hollow rod pipe, a rotary adjusting ring is arranged in the middle of the tooth pipe, and a round hole I; the limiting block is provided with round holes II used for fixing the limiting rod plugs at two ends, the round holes I are arranged corresponding to the round holes II, the positioning pins are arranged in the middle in a penetrating mode, and the limiting rod is arranged between the limiting blocks symmetrically arranged on two sides. The problems of cracking and water leakage of the concrete structure are solved, and the durability of the structure is improved.

Description

Steel bar layer and interval combined controller

Technical Field

The utility model belongs to the technical field of city subway engineering reinforced concrete structure construction, specifically be a reinforcing bar layer, interval joint controller.

Background

As a stress and durability structure, the concrete structure is applied to the wide building market because the superiority is higher than other building materials, along with the increasing progress of concrete technology, the durability of concrete is widely concerned and controlled, as a reinforced concrete structure is used as a good stress structure, the durability of the reinforced concrete structure becomes the most outstanding problem, the durability of the reinforced concrete is influenced by the material of the reinforced concrete and the concrete, the main reason influencing the durability of the reinforced concrete is whether the thickness of a concrete protective layer is effectively controlled or not, in the reinforced concrete construction of urban subway engineering, the control of a side wall protective layer, the distance between reinforcing steel bars and the layer distance cannot be effectively controlled, the cracking and water leakage of the concrete structure are caused, the durability of the structure is seriously influenced, the traditional concrete protective layer cushion block only can limit the distance between the reinforcing steel bars and a template, but can't restrain the skew template of reinforcing bar and be greater than the trend of protective layer thickness, because subway station side wall height generally is greater than 5 meters, the concrete placement operation under the high formwork circumstances seriously influences framework of steel reinforcement's stability, and its unfavorable phenomenon has two kinds, and is first: the inner and outer layer steel bars of the concrete structure are close to the center of the structure, so that the thickness of the inner and outer side protective layers is too large; secondly, the method comprises the following steps: the outer/inner steel bars are drawn toward the center of the structure, resulting in an excessively large outer/inner protective layer. The excessive thickness of the protective layer can cause the concrete cracking to be aggravated, and the durability of the concrete is directly influenced.

Disclosure of Invention

The utility model discloses a solve above-mentioned problem, provide a reinforcing bar layer, interval joint control ware.

The utility model adopts the following technical proposal: a reinforcing steel bar layer and space combined controller comprises limiting blocks and limiting rods, wherein the limiting blocks are used for limiting the distance between reinforcing steel bars and the thickness of a concrete protective layer, each limiting block comprises a galvanized square pipe and a limiting steel plate, the upper side and the lower side of each galvanized square pipe are respectively welded with the corresponding limiting steel plate which are symmetrically arranged, a plurality of circular arc-shaped reinforcing steel bar clamping grooves are formed in the limiting steel plates, each limiting rod comprises a hollow rod pipe with a U-shaped adjusting seat at the end and a tooth pipe with a U-shaped adjusting seat at the end, the tooth pipes penetrate through the hollow rod pipes, a rotary adjusting ring is arranged in the middle of each tooth pipe, and a round hole I used for being fixed with the limiting; the limiting block is provided with round holes II used for fixing the limiting rod plugs at two ends, the round holes I are arranged corresponding to the round holes II, the positioning pins are arranged in the middle in a penetrating mode, and the limiting rod is arranged between the limiting blocks symmetrically arranged on two sides.

Furthermore, the U-shaped adjusting seat is a galvanized channel steel with the width of 50mm, the length of 50mm and the height of 32mm, and round holes with the diameter of phi 12 are symmetrically formed in two sides of the U-shaped adjusting seat.

Furthermore, the limiting block is arranged between the template and the steel reinforcement cage, and steel reinforcements in the template are bound and fixed in the circular-arc-shaped steel reinforcement clamping grooves in the limiting block through binding wires.

Compared with the prior art, the utility model discloses concrete protective layer thickness can obtain effectual control to in city subway engineering reinforced concrete construction, control side wall protective layer and steel bar interval and layer are apart from, solve the problem of concrete structure fracture, percolating water, thereby improve the durability of structure.

Drawings

FIG. 1 is a schematic diagram of a restriction block structure;

FIG. 2 is a schematic view of a stop lever;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic view of the installation structure of the present invention;

in the figure, 1-a limiting block, 2-a limiting rod, 3-a limiting steel plate, 4-a galvanized square tube, 5-an arc-shaped reinforcing steel bar clamping groove, 6-a U-shaped adjusting seat, 7-a tooth tube, 8-an empty rod tube, 9-a rotary adjusting ring, 10-a horizontal rib, 11-a template, 12-a main rib and 13-a maintenance structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, 2 and 3, a reinforcing steel layer and space combined controller comprises a limiting block 2 and a limiting rod 1, wherein the limiting block 2 is used for limiting the distance between reinforcing steel bars and the thickness of a concrete protective layer, the limiting block 2 comprises a galvanized square tube 4 and a limiting steel plate 3, the upper side and the lower side of the galvanized square tube 4 are respectively welded with the limiting steel plate 3 which are symmetrically arranged, a plurality of circular arc-shaped reinforcing steel bar clamping grooves 5 are arranged on the limiting steel plate 3, the limiting rod 1 comprises a hollow rod tube 8 with a U-shaped adjusting seat at the end and a tooth tube 7 with a U-shaped adjusting seat at the end, the tooth tube 7 is arranged in the hollow rod tube 8 in a penetrating manner, a rotary adjusting ring 9 is arranged in the middle of the tooth tube 7, and a round hole I for; the both ends of the limiting block 2 are provided with round holes II used for fixing the stop rod 1 in a plug mode, the round holes I correspond to the round holes II, a locating pin is arranged in the middle of the round holes I in a penetrating mode, and the limiting block 1 is arranged between the limiting blocks 2 symmetrically arranged on two sides.

The U-shaped adjusting seat 6 is a galvanized channel steel with the width of 50mm, the length of 50mm and the height of 32mm, and round holes with the diameter of 12 are symmetrically formed in two sides of the U-shaped adjusting seat 6.

The limiting block 2 is arranged between the template and the reinforcement cage, and the reinforcement in the template is bound and fixed in the circular-arc-shaped reinforcement clamping groove 5 on the limiting block 2 through the binding wires.

The preparation method comprises the following steps: the limiting block for the steel bar spacing and the concrete protective layer thickness is characterized in that firstly, a steel plate is cut into long strips with the size of 1350mm multiplied by 60mm by a plasma cutting machine (the width of the steel plate is related to the design thickness of the protective layer, and the limiting block is customized according to the design), one side is cut into arc-shaped steel bar clamping grooves with the spacing of 150+300mm (the arrangement mode of 150+300mm exists in the general subway side wall structure, and most of the arrangement mode is 150mm, and the specific situation is changed according to the design), the radius of the arc-shaped steel bar clamping grooves is 15mm, and the chord height of the arc-shaped steel bar clamping grooves is 10mm, a 30 multiplied by 30 square pipe is cut into small sections for standby, the processed semi-finished product is placed on a processing platform, a steel plate with the clamping grooves cut is placed at the lower layer according to the installation sequence, the cut square pipe is placed above, one side of the square, the contact positions of the square tube and the steel plate are fully welded, then bright red lead anti-rust paint is coated to prevent corrosion in the use process, then a phi 12 round hole is formed at the 1/4 position of the limiting block of the distance between the reinforcing steel bars and the thickness of the concrete protective layer, and a phi 10 stud is used for fixing the limiting rod plug.

The limiting rod consists of a hollow rod tube with a U-shaped adjusting seat at the end and a tooth tube with a U-shaped adjusting seat at the end, wherein the U-shaped adjusting seat is a customized galvanized channel steel with the width of 50mm, the length of 50mm and the height of 32mm, the upper layer surface and the lower layer surface are provided with phi 12 round holes, and phi 10 studs are used for fixing a reinforcing steel bar spacing, a concrete protective layer thickness limiting block and the limiting rod; the limiting rod and the hollow rod pipe are phi 32 galvanized steel pipes, the tooth pipe is phi 30 thickened wire galvanized steel pipe, and a rotary adjusting ring is arranged to adjust the side distance of the steel bars; with U type adjustment seat and hollow rod pipe, tooth pipe centering welding, during the tooth pipe worn to hollow rod pipe, formed the gag lever post structure, this structural length should be according to the construction design customization, satisfy in principle convenient and practical can.

The reinforcing steel bar layer and space combined controller is provided with a protective layer active control part at one side close to the template, the purpose is achieved by using reinforcing steel bar space and a concrete protective layer thickness limiting block, and in order to ensure that the reinforcing steel bars are effectively fixed, the reinforcing steel bars and the limiting block are bound and fixed by using binding wires on site; keep away from template one side reinforcing bar and be passive control part, both used reinforcing bar interval, concrete protective layer thickness restriction piece to play the effect of reinforcing bar interval control, the colleague with the ligature of wire in the outside reinforcing bar fix soon in the restriction, the existence of gag lever post aims at controlling the layer distance of structural reinforcement.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a reinforcing bar layer, interval joint control ware which characterized in that: the concrete protective layer is characterized by comprising limiting blocks (2) and limiting rods (1) for limiting the distance between reinforcing steel bars and the thickness of a concrete protective layer, wherein each limiting block (2) comprises a galvanized square tube (4) and a limiting steel plate (3), the upper side and the lower side of each galvanized square tube (4) are respectively welded with the corresponding limiting steel plate (3) which are symmetrically arranged, a plurality of circular arc-shaped reinforcing steel bar clamping grooves (5) are formed in each limiting steel plate (3), each limiting rod (1) comprises a hollow rod tube (8) with a U-shaped adjusting seat at the end and a tooth tube (7) with a U-shaped adjusting seat at the end, each tooth tube (7) is arranged in each hollow rod tube (8) in a penetrating mode, a rotary adjusting ring (9) is arranged in the middle of each tooth tube (7), and each U-shaped adjusting seat (; two ends of the limiting block (2) are provided with round holes II used for fixing the limiting rod (1) in a plug mode, the round holes I are arranged corresponding to the round holes II, a positioning pin is arranged in the middle of the round holes I in a penetrating mode, and the limiting rod (1) is arranged between the limiting blocks (2) symmetrically arranged on two sides.

2. The tendon layer and interval combined controller of claim 1, wherein: the U-shaped adjusting seat (6) is galvanized channel steel with the width of 50mm, the length of 50mm and the height of 32mm, and round holes with the diameter of 12 are symmetrically formed in two sides of the U-shaped adjusting seat (6).

3. The tendon layer and interval combined controller according to claim 2, wherein: the limiting block (2) is arranged between the template and the reinforcement cage, and the reinforcement in the template is bound and fixed in the circular-arc-shaped reinforcement clamping groove (5) on the limiting block (2) through binding wires.