阅读说明：本技术 一种屈曲约束钢板剪力墙混凝土盖板的制作方法 (Manufacturing method of buckling restrained steel plate shear wall concrete cover plate ) 是由 韩华 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种屈曲约束钢板剪力墙混凝土盖板的制作方法,包括在水平放置的支撑板上放置定位板,调整定位板表面的平整度小于1mm；在定位板上以混凝土盖板左下角为坐标原点,建立直角坐标系XOY,然后根据设计图纸中所有加固机构的中心坐标依次在定位板上开设螺纹定位孔；在每个定位孔内安装定位螺杆,然后在定位板上绘制出加固机构内隔组件在X方向的水平内轮廓线,用于控制隔板安装时在X、Y方向位置的精度；根据绘制的每个加固机构内隔组件的水平内轮廓线将加固机构放置在定位板上,然后在内隔组件平板外侧的定位螺杆上套设紧固螺母；安装钢筋网片后浇筑混凝土。该制作方法能对加固结构进行精准定位,同时也有利于提高混凝土盖板的制作精度。(The invention discloses a manufacturing method of a concrete cover plate of a buckling restrained steel plate shear wall, which comprises the steps of placing a positioning plate on a horizontally placed supporting plate, and adjusting the flatness of the surface of the positioning plate to be less than 1 mm; establishing a rectangular coordinate system XOY on the positioning plate by taking the lower left corner of the concrete cover plate as an origin of coordinates, and then sequentially forming threaded positioning holes on the positioning plate according to the central coordinates of all reinforcing mechanisms in a design drawing; installing a positioning screw in each positioning hole, and drawing a horizontal inner contour line of a partition component in the reinforcing mechanism in the X direction on the positioning plate to control the accuracy of the position of the partition in the X, Y direction when the partition is installed; placing the reinforcing mechanisms on the positioning plates according to the drawn horizontal inner contour line of the internal partition component of each reinforcing mechanism, and then sleeving a fastening nut on the positioning screw rod on the outer side of the flat plate of the internal partition component; and (5) pouring concrete after installing the reinforcing mesh. The manufacturing method can accurately position the reinforced structure and is beneficial to improving the manufacturing precision of the concrete cover plate.)

1. A manufacturing method of a buckling restrained steel plate shear wall concrete cover plate is characterized in that a plurality of reinforcing mechanisms are distributed on the buckling restrained steel plate shear wall concrete cover plate in an array mode, each reinforcing mechanism comprises an outer partition component and an inner partition component, the outer partition component and the inner partition component are identical in structure, the size of the inner partition component is smaller than that of the outer partition component, each outer partition component and the inner partition component are composed of a flat plate with an annular track structure and an annular pipe arranged on one side of the flat plate, the annular pipe is axially perpendicular to the flat plate, one end of each annular pipe is fixedly connected with the edge of an inner ring of the corresponding flat plate, the outer side face of the flat plate of the outer partition component is flush with one side face of the concrete cover plate, the free end of each annular pipe of the outer partition component is fixedly connected with the other side face of the flat plate of the inner partition component, the free end of each annular pipe of the inner partition component is flush with the other side face of the concrete cover plate, and a strip-shaped through hole penetrating through the concrete cover plate is formed between the inner partition component and the outer partition component, the strip-shaped through hole is horizontally arranged for a split bolt to pass through; the manufacturing method is characterized by comprising the following steps:

(1) manufacturing a working platform: placing a positioning plate on a horizontally placed support plate so as to form a working platform, and adjusting the flatness of the surface of the working platform to be less than 1 mm;

(2) setting a positioning hole: establishing a rectangular coordinate system XOY on the positioning plate by taking the lower left corner of the concrete cover plate as the origin of coordinates, sequentially marking the central points of all the reinforcing mechanisms on the rectangular coordinate system XOY according to the central coordinates of all the reinforcing mechanisms in the design drawing, sequentially connecting the central points of all rows in the X direction and the Y direction, and sequentially forming threaded positioning holes at the central points on the positioning plate;

(3) installing a reinforcing mechanism: installing a positioning screw in each positioning hole, drawing a horizontal inner contour line of the inner partition component of the reinforcing mechanism in the X direction on the positioning plate, controlling the precision of the position of the partition plate in the direction X, Y when the partition plate is installed, and marking a vertical scale line at the midpoint position of the annular pipes of all the inner partition components in the X direction; placing the reinforcing mechanisms on the positioning plate, enabling the positioning screws to penetrate out of the strip-shaped through holes of the inner partition component, moving the reinforcing mechanisms to enable the horizontal inner contour lines of the inner partition component to be aligned with the horizontal inner contour lines drawn on the positioning plate, enabling the vertical scale lines of each reinforcing mechanism to be superposed with the corresponding central line in the X direction, and then sleeving fastening nuts on the positioning screws on the outer sides of the flat plates of the inner partition component to position the reinforcing mechanisms on the positioning plate;

(4) installing a steel bar mesh: according to a design drawing, installing a reinforcing steel bar mesh sheet according to the principle that a lower reinforcing steel bar is firstly welded and then bound;

(5) pouring concrete: and (5) firstly, erecting the formwork and then pouring concrete.

2. The manufacturing method of the buckling restrained steel plate shear wall concrete cover plate as claimed in claim 1, wherein three points which are not collinear are randomly selected near three corners of the working platform in the step (1), the relative height difference of the three points is measured by using a laser level, and the absolute value of the difference between any two of the three points is required to be not more than 1 mm; if the flatness is larger than 1mm, the flatness of the working platform is readjusted.

3. The manufacturing method of the buckling restrained steel plate shear wall concrete cover plate as claimed in claim 1, wherein in the step (3), a gasket and a cover plate are sleeved on the positioning screw rod between the inner partition component flat plate and the fastening nut, and the cover plate is located above the gasket and used for improving the pretightening force of the fastening nut.

4. The method for manufacturing the concrete cover plate of the buckling restrained steel plate shear wall as claimed in claim 1, wherein a release agent is uniformly coated on the surface of the positioning plate before the reinforcing mesh is installed, so that the concrete cover plate after pouring can be smoothly separated from the positioning plate.

5. The manufacturing method of the buckling restrained steel plate shear wall concrete cover plate as claimed in claim 1, wherein the concrete steps of installing the reinforcing mesh in the step (4) are as follows: firstly, welding lower reinforcing steel bars which are broken by a reinforcing mechanism in the X direction and the Y direction with the reinforcing mechanism, then sequentially binding the lower reinforcing steel bars which are full long in the X direction, the lower reinforcing steel bars near the reinforcing mechanism in the X direction and the reinforcing steel bars at the lower edge in the X direction, and then sequentially binding the lower reinforcing steel bars which are full long in the Y direction, the lower reinforcing steel bars near the reinforcing mechanism in the Y direction and the reinforcing steel bars at the lower edge in the Y direction; and then welding the upper reinforcing steel bars which are broken by the reinforcing mechanisms in the X direction and the Y direction with the reinforcing mechanisms, then sequentially binding the upper reinforcing steel bars with the full length in the X direction, the upper reinforcing steel bars near the reinforcing mechanisms in the X direction and the reinforcing steel bars at the upper edge in the X direction, and finally sequentially binding the upper reinforcing steel bars with the full length in the Y direction, the upper reinforcing steel bars near the reinforcing mechanisms in the Y direction and the reinforcing steel bars at the upper edge in the Y direction.

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a manufacturing method of a buckling restrained steel plate shear wall concrete cover plate.

Background

The buckling restrained steel plate shear wall (BRSPW) is a novel lateral force resistant component of a multi-story and high-rise steel structure, and has good energy dissipation and shock absorption functions. The buckling restrained steel plate shear wall is composed of an embedded steel plate and concrete cover plates, the precast concrete cover plates on two sides are tightly connected with the embedded steel plate through the split bolts which are uniformly arranged, no gap is reserved between the concrete cover plates and the embedded steel plate, and therefore the lateral stiffness of the buckling restrained steel plate shear wall is improved. The concrete cover plate does not directly participate in the stress of the main structure, only limits the out-of-plane deformation of the internally-embedded steel plate, and compared with the common steel plate wall and the stiffening steel plate wall, the embedded steel plate of the buckling restrained steel plate wall is restrained by the outer side cover plate, the buckling deformation is effectively restrained, the energy consumption capability is obviously improved, the buckling noise of the steel plate is favorably controlled, and the fire prevention and sound insulation performance is obviously improved.

Traditional bucking restraint steel sheet shear force wall is direct evenly to set up a plurality of bolt holes on concrete cover plate, then couples together concrete cover plate and embedded steel sheet with split bolt, though concrete cover plate does not participate in the major structure atress, but is being in the state of bending always to the concrete cover plate of in-process of retraining to the embedded steel sheet, and the bolt hole on the concrete cover plate is very easily taken place to damage under the stress state to can lead to the fact the influence to the restraint of inlaying the steel sheet.

Based on the above, the applicant provides a buckling restrained steel plate shear wall concrete cover plate, the structure of which is shown in fig. 1-4, a reinforcing mechanism is embedded at a position corresponding to a bolt hole of an existing concrete cover plate 1 for reinforcing the stability of the bolt hole, and a through hole for a split bolt to pass through is formed in the middle of the reinforcing mechanism. The bolt hole is a stepped hole, the cross section of the bolt hole is in an annular runway shape, the reinforcing mechanism comprises an outer partition component 3 and an inner partition component 2, the outer partition component 3 and the inner partition component 2 are in the same structure, the size of the inner partition component 2 is smaller than that of the outer partition component 3, the outer partition component 3 and the inner partition component 2 are both formed by a flat plate of the annular runway structure and an annular pipe arranged on one side of the flat plate, the annular pipe is axially vertical to the flat plate, one end of the annular pipe is fixedly connected with the edge of an inner ring of the corresponding flat plate, the outer side face of the flat plate of the outer partition component 3 is flush with one side face of the concrete cover plate 1, the annular pipe of the outer partition component 3 is attached to the large hole wall of the stepped hole, the flat plate of the inner partition component 2 is attached to the small hole of the stepped hole, the free end of the annular pipe of the outer partition component 3 is fixedly connected with the other side face of the flat plate of the inner partition component 2, the free end of the annular pipe of the inner partition component 2 is flush with the side face of the concrete cover plate 1, form the bar via hole that runs through concrete cover plate both sides face in the middle of separating subassembly 2 and separating subassembly 3 outward, bar via hole level sets up and passes in order to supply the split bolt.

The buckling restrained steel plate shear wall has high requirements on the flatness and the size of the assembled surface of the concrete cover plate, and the positioning accuracy of the reinforcing mechanism embedded in the concrete cover plate also has high requirements, so that the manufacturing accuracy of the reinforcing mechanism reaches a millimeter level, the existing manufacturing accuracy is low, and the manufacturing accuracy cannot reach the millimeter level.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the manufacturing method of the buckling restrained steel plate shear wall concrete cover plate, which can accurately position the reinforced structure and is also beneficial to improving the manufacturing precision of the concrete cover plate, so that the manufacturing precision reaches the millimeter level.

The technical scheme of the invention is realized as follows:

a manufacturing method of a buckling restrained steel plate shear wall concrete cover plate is characterized in that a plurality of reinforcing mechanisms are distributed on the buckling restrained steel plate shear wall concrete cover plate in an array mode, each reinforcing mechanism comprises an outer partition component and an inner partition component, the outer partition component and the inner partition component are identical in structure, the size of the inner partition component is smaller than that of the outer partition component, each outer partition component and the inner partition component are composed of a flat plate with an annular track structure and an annular pipe arranged on one side of the flat plate, the annular pipe is axially perpendicular to the flat plate, one end of each annular pipe is fixedly connected with the edge of an inner ring of the corresponding flat plate, the outer side face of the flat plate of the outer partition component is flush with one side face of the concrete cover plate, the free end of each annular pipe of the outer partition component is fixedly connected with the other side face of the flat plate of the inner partition component, the free end of each annular pipe of the inner partition component is flush with the other side face of the concrete cover plate, and a strip-shaped through hole penetrating through the concrete cover plate is formed between the inner partition component and the outer partition component, the strip-shaped through hole is horizontally arranged for a split bolt to pass through; the manufacturing method comprises the following steps:

(1) manufacturing a working platform: placing a positioning plate on a horizontally placed support plate so as to form a working platform, and adjusting the flatness of the surface of the working platform to be less than 1 mm;

(2) setting a positioning hole: establishing a rectangular coordinate system XOY on the positioning plate by taking the lower left corner of the concrete cover plate as the origin of coordinates, sequentially marking the central points of all the reinforcing mechanisms on the rectangular coordinate system XOY according to the central coordinates of all the reinforcing mechanisms in the design drawing, sequentially connecting the central points of all rows in the X direction and the Y direction, and sequentially forming threaded positioning holes at the central points on the positioning plate;

(3) installing a reinforcing mechanism: installing a positioning screw in each positioning hole, drawing a horizontal inner contour line of the inner partition component of the reinforcing mechanism in the X direction on the positioning plate, controlling the precision of the position of the partition plate in the direction X, Y when the partition plate is installed, and marking a vertical scale line at the midpoint position of the annular pipes of all the inner partition components in the X direction; placing the reinforcing mechanisms on the positioning plate, enabling the positioning screws to penetrate out of the strip-shaped through holes of the inner partition component, moving the reinforcing mechanisms to enable the horizontal inner contour lines of the inner partition component to be aligned with the horizontal inner contour lines drawn on the positioning plate, enabling the vertical scale lines of each reinforcing mechanism to be superposed with the corresponding central line in the X direction, and then sleeving fastening nuts on the positioning screws on the outer sides of the flat plates of the inner partition component to position the reinforcing mechanisms on the positioning plate;

(4) installing a steel bar mesh: according to a design drawing, installing a reinforcing steel bar mesh sheet according to the principle that a lower reinforcing steel bar is firstly welded and then bound;

(5) pouring concrete: and (5) firstly, erecting the formwork and then pouring concrete.

Further, randomly selecting three points which are not collinear near three angles of the working platform in the step (1), measuring the relative height difference of the three points by using a laser level gauge, and requiring that the absolute value of the difference between any two of the relative height differences of the three points is not more than 1 mm; if the flatness is larger than 1mm, the flatness of the working platform is readjusted.

Further, in the step (3), a gasket and a cover plate are sleeved on the positioning screw rod between the inner partition component flat plate and the fastening nut, and the cover plate is located above the gasket and used for improving the pretightening force of the fastening nut.

Furthermore, before the reinforcing mesh is installed, the surface of the positioning plate is uniformly coated with a release agent, so that the poured concrete cover plate can be smoothly separated from the positioning plate.

Further, the concrete steps of installing the steel mesh in the step (4) are as follows: firstly, welding lower reinforcing steel bars which are broken by a reinforcing mechanism in the X direction and the Y direction with the reinforcing mechanism, then sequentially binding the lower reinforcing steel bars which are full long in the X direction, the lower reinforcing steel bars near the reinforcing mechanism in the X direction and the reinforcing steel bars at the lower edge in the X direction, and then sequentially binding the lower reinforcing steel bars which are full long in the Y direction, the lower reinforcing steel bars near the reinforcing mechanism in the Y direction and the reinforcing steel bars at the lower edge in the Y direction; and then welding the upper reinforcing steel bars which are broken by the reinforcing mechanisms in the X direction and the Y direction with the reinforcing mechanisms, then sequentially binding the upper reinforcing steel bars with the full length in the X direction, the upper reinforcing steel bars near the reinforcing mechanisms in the X direction and the reinforcing steel bars at the upper edge in the X direction, and finally sequentially binding the upper reinforcing steel bars with the full length in the Y direction, the upper reinforcing steel bars near the reinforcing mechanisms in the Y direction and the reinforcing steel bars at the upper edge in the Y direction.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the threaded positioning hole is formed in the positioning plate, the positioning screw is fixed in the positioning hole, the reinforcing mechanism is arranged on the positioning screw, so that the positioning of the reinforcing mechanism is realized, the positioning hole can be mechanically operated, and compared with the method for manually positioning the reinforcing mechanism during the manufacturing of the concrete cover plate, the positioning precision of the reinforcing mechanism can be effectively improved, thereby being beneficial to improving the manufacturing precision of the concrete cover plate and enabling the manufacturing precision to reach millimeter level.

2. According to the invention, the reinforcing mechanism embedded in the concrete cover plate is positioned by manufacturing the working platform, so that the standardization and integration degree of the concrete cover plate production is improved, and the popularization of the subsequent construction of the buckling restrained steel plate shear wall is facilitated.

Drawings

FIG. 1-structural schematic diagram of concrete cover plate of buckling restrained steel plate shear wall

Fig. 2-an enlarged view of portion F of fig. 1.

Fig. 3-a cross-section view of fig. 2.

Fig. 4-B cross-sectional view of fig. 2.

Fig. 5-a schematic view of the structure of the positioning structure.

Fig. 6-fig. 5 are enlarged views of portion G.

Fig. 7-a cross-sectional view of fig. 6.

Fig. 8-B cross-sectional view of fig. 6.

Wherein: 1-a concrete cover plate; 2-an inner partition component; 3-an outer spacer assembly; 4-fastening a nut; 5-positioning the screw rod; 6-cover plate; 7-a gasket; 8, positioning a plate; 9-support plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-8, a method for manufacturing a buckling restrained steel plate shear wall concrete cover plate comprises a plurality of reinforcing mechanisms distributed on the buckling restrained steel plate shear wall concrete cover plate in an array manner, wherein each reinforcing mechanism comprises an outer partition component 3 and an inner partition component 2, the outer partition component 3 and the inner partition component 2 are identical in structure, the size of the inner partition component 2 is smaller than that of the outer partition component 3, each outer partition component 3 and the inner partition component 2 are respectively composed of a flat plate with an annular runway structure and an annular pipe arranged on one side of the flat plate, the annular pipe is axially vertical to the flat plate, one end of the annular pipe is fixedly connected with the edge of an inner ring of the corresponding flat plate, the outer side surface of the flat plate of the outer partition component 3 is flush with one side surface of the concrete cover plate 1, the free end of the annular pipe of the outer partition component 3 is fixedly connected with the other side surface of the flat plate of the inner partition component 2, and the free end of the annular pipe of the inner partition component 2 is flush with the other side surface of the concrete cover plate 1, a strip-shaped through hole penetrating through two side surfaces of the concrete cover plate is formed between the inner partition component 2 and the outer partition component 3, and the strip-shaped through hole is horizontally arranged for a split bolt to pass through; the manufacturing method comprises the following steps:

(1) manufacturing a working platform: placing a positioning plate 8 on a horizontally placed supporting plate 9 so as to form a working platform, and adjusting the flatness of the surface of the working platform to be less than 1 mm;

(2) setting a positioning hole: establishing a rectangular coordinate system XOY on the positioning plate 8 by taking the lower left corner of the concrete cover plate as an origin of coordinates, sequentially marking the central points of all the reinforcing mechanisms on the rectangular coordinate system XOY according to the central coordinates of all the reinforcing mechanisms in a design drawing, sequentially connecting the central points of all rows in the X direction and the Y direction, and sequentially forming threaded positioning holes at all the central points on the positioning plate 8;

(3) installing a reinforcing mechanism: installing a positioning screw rod 5 in each positioning hole, and then drawing a horizontal inner contour line of the partition assembly 2 in the reinforcement mechanism in the X direction on a positioning plate 8 to control the accuracy of the position of the partition in the X, Y direction during installation; placing the reinforcing mechanisms on a positioning plate 8, enabling the positioning screws 5 to penetrate through the strip-shaped through holes of the inner partition component 2, moving the reinforcing mechanisms to enable the horizontal inner contour lines of the inner partition component 2 to be aligned with the horizontal inner contour lines drawn on the positioning plate 8, enabling the vertical scale lines of each reinforcing mechanism to be coincided with the corresponding central line in the X direction, and then sleeving fastening nuts 4 on the positioning screws 5 on the outer side of the flat plate of the inner partition component 2 to position the reinforcing mechanisms on the positioning plate 8;

(4) installing a steel bar mesh: according to a design drawing, installing a reinforcing steel bar mesh sheet according to the principle that a lower reinforcing steel bar is firstly welded and then bound;

(5) pouring concrete: and (5) firstly, erecting the formwork and then pouring concrete.

In the embodiment, the external separation component is made of L-shaped equilateral angle steel, the length of a single side is 50mm, and the thickness is 5 mm; the inner partition component is also made of L-shaped angle steel, wherein the length of the flat plate of the inner partition component is 55mm, the length of the annular pipe of the inner partition component is 50mm, and the thickness of the annular pipe of the inner partition component is 5 mm. The thickness of the positioning plate is 3cm, the depth of the positioning hole is 2cm, the diameter of the positioning hole is 2cm, and the length of the positioning screw is 9 cm. The positioning mode of the invention can realize effective positioning of the reinforcing mechanism, and is beneficial to improving the manufacturing precision of the concrete cover plate.

In the specific implementation, three points which are not collinear are randomly selected near three angles of the working platform in the step (1), the relative height difference of the three points is measured by using a laser level, and the absolute value of the difference between any two of the relative height differences of the three points is required to be not more than 1 mm; if the flatness is larger than 1mm, the flatness of the working platform is readjusted.

During specific implementation, in the step (3), a gasket 7 and a cover plate 6 are sleeved on the positioning screw rod 5 between the flat plate of the internal partition component 2 and the fastening nut 4, and the cover plate 6 is located above the gasket 7 and used for improving the pretightening force of the fastening nut 4.

The gasket here is the polytetrafluoroethylene gasket, and supplementary fastening nut through cover plate and gasket couples together reinforcing mechanism and locating plate like this, makes location structure firm more reliable.

During specific implementation, before the reinforcing mesh is installed, the surface of the positioning plate 8 is uniformly coated with a release agent, so that the poured concrete cover plate can be smoothly separated from the positioning plate.

When the concrete implementation is carried out, the concrete steps of installing the reinforcing mesh in the step (4) are as follows: firstly, welding lower reinforcing steel bars which are broken by a reinforcing mechanism in the X direction and the Y direction with the reinforcing mechanism, then sequentially binding the lower reinforcing steel bars which are full long in the X direction, the lower reinforcing steel bars near the reinforcing mechanism in the X direction and the reinforcing steel bars at the lower edge in the X direction, and then sequentially binding the lower reinforcing steel bars which are full long in the Y direction, the lower reinforcing steel bars near the reinforcing mechanism in the Y direction and the reinforcing steel bars at the lower edge in the Y direction; and then welding the upper reinforcing steel bars which are broken by the reinforcing mechanisms in the X direction and the Y direction with the reinforcing mechanisms, then sequentially binding the upper reinforcing steel bars with the full length in the X direction, the upper reinforcing steel bars near the reinforcing mechanisms in the X direction and the reinforcing steel bars at the upper edge in the X direction, and finally sequentially binding the upper reinforcing steel bars with the full length in the Y direction, the upper reinforcing steel bars near the reinforcing mechanisms in the Y direction and the reinforcing steel bars at the upper edge in the Y direction.

Because the concrete cover plate has high requirements on the processing, positioning and binding accuracy of the reinforcing steel bars, the reinforcing steel bar net sheets are required to be installed in sequence, and each step of procedure has the irreversible characteristic. Namely, the completion of the previous procedure must be accurate, otherwise, the previous procedure is found to be wrong after the completion of the next procedure, and the defects of the previous procedure cannot be effectively improved. Therefore, the accuracy of the installation of the reinforcing steel bars must be ensured, and the step-by-step acceptance of each step of the installation of the reinforcing steel bar meshes is required.

Finally, it should be noted that the above-mentioned examples of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes and modifications of the present invention are within the scope of the present invention.