阅读说明：本技术 屈曲约束支撑埋件部位梁钢筋安装方法 (Method for mounting beam steel bars at embedded part of buckling restrained brace ) 是由 乌凤文 张贺喜格图 王宣 尚波 郑纪明 于 2020-06-11 设计创作，主要内容包括：本发明提供一种屈曲约束支撑埋件部位梁钢筋安装方法,包括如下步骤：在主体结构的预设部位设置梁模板,并在所述梁模板上进行钢埋件定位放线标记；根据定位放线标记将预设的钢埋件安装在所述梁模板的预设位置；将预设的梁主筋的一端与主体结构相连并将所述梁主筋的主体与所述钢埋件固定；安装梁侧模,以使所述梁侧模将所述钢埋件和所述梁主筋包裹；对所述钢埋件的安装成效进行验收。利用上述发明以解决现有的屈曲约束支撑钢埋件安装方法效率低、不经济且不安全的问题。(The invention provides a method for installing beam steel bars at a buckling restrained brace embedded part, which comprises the following steps: arranging a beam template at a preset part of the main body structure, and carrying out positioning and paying-off marking on a steel embedded part on the beam template; installing a preset steel embedded part at a preset position of the beam template according to the positioning paying-off mark; connecting one end of a preset beam main rib with a main body structure and fixing the main body of the beam main rib with the embedded steel part; mounting a beam side die so that the beam side die wraps the steel embedded part and the beam main rib; and checking and accepting the installation effect of the steel embedded part. The invention is utilized to solve the problems of low efficiency, uneconomic and unsafe of the existing method for installing the buckling restrained brace steel embedded part.)

1. A method for installing beam steel bars at a buckling restrained brace embedded part comprises the following steps:

arranging a beam template at a preset part of the main body structure, and carrying out positioning and paying-off marking on a steel embedded part on the beam template;

installing a preset steel embedded part at a preset position of the beam template according to the positioning paying-off mark;

connecting one end of a preset beam main rib with a main body structure and fixing the main body of the beam main rib with the embedded steel part;

mounting a beam side die so that the beam side die wraps the steel embedded part and the beam main rib;

and checking and accepting the installation effect of the steel embedded part.

2. The buckling-restrained brace embedded part beam steel bar installation method according to claim 1, wherein the steel embedded part at least comprises a T-shaped steel embedded part and an I-shaped steel embedded part, and each of the T-shaped steel embedded part and the I-shaped steel embedded part comprises an upper flange plate, a lower flange plate and a grid web plate connected between the upper flange plate and the lower flange plate: wherein the content of the first and second substances,

the length of the upper flange plate of the T-shaped steel embedded part is shorter than that of the lower flange plate of the T-shaped steel embedded part.

3. The method for installing the beam steel bars at the buckling restrained brace embedded part according to claim 2, wherein the preset process of the T-shaped steel embedded part comprises the following steps:

inserting preset U-shaped opening stirrups into gaps of grid webs of the T-shaped steel embedded part from two sides of the T-shaped steel embedded part;

and fixedly connecting the U-shaped opening stirrup with the T-shaped steel embedded part to form a large-sized stirrup.

4. The method for installing the beam steel bar at the buckling restrained brace embedded part according to claim 3,

at least two grid webs are arranged between the upper flange plate and the lower flange plate, and web gaps are formed among the grid webs; and the number of the first and second electrodes,

the gap width between each web gap is equal.

5. The method for installing the beam steel bars at the buckling restrained brace embedded part according to claim 4, wherein when the steel embedded part is a T-shaped steel embedded part, the presetting process of the T-shaped steel embedded part comprises the following steps:

the lower ends of the two U-shaped opening stirrups penetrate through the same web plate gap from two sides of the grid web plate and are locked; locking the upper ends of the two U-shaped opening stirrups from the upper side of the upper flange plate;

and fixedly connecting the two U-shaped opening stirrups with the T-shaped steel embedded part to form a large-scale stirrup.

6. The method for installing the beam steel bar at the buckling restrained brace embedded part according to claim 5, wherein when the steel embedded part is a T-shaped steel embedded part, the process of installing the beam main bar and fixing the beam main bar and the steel embedded part comprises the following steps:

determining the installation position of the beam main reinforcement according to the profile of the large stirrup and fixedly connecting the beam main reinforcement with the main body structure;

and fixing the beam main reinforcement, the U-shaped opening stirrup and the T-shaped steel embedded part.

7. The method for installing the beam steel bar at the buckling restrained brace embedded part according to claim 4, wherein when the embedded steel part is an I-shaped steel embedded part, the process of installing the beam main steel bar and fixing the beam main steel bar and the embedded steel part comprises the following steps:

installing the beam main rib according to the outline of the I-shaped steel embedded part;

inserting U-shaped opening stirrups into web plate gaps of grid web plates of the I-shaped steel embedded part from two sides of the I-shaped steel embedded part and enabling the U-shaped opening stirrups to be attached to the beam main reinforcements;

and fixing the beam main reinforcement, the U-shaped opening stirrup and the I-shaped steel embedded part.

8. The method for installing the beam steel bar at the buckling restrained brace embedded part according to claim 7,

when the steel embedded part is an I-shaped steel embedded part, the upper end and the lower end of each U-shaped opening stirrup penetrate through the gap of the same web plate from the two sides of the grid web plate and are correspondingly locked.

9. The buckling-restrained brace embedded part beam reinforcing steel bar installation method according to any one of claims 3 to 8,

welding spots are arranged on the embedded steel part, and the U-shaped opening stirrups and the beam main reinforcements are welded and fixed with the embedded steel part through the welding spots.

10. The method for installing reinforcing steel bars of a beam at a buckling restrained brace embedded part according to claim 9,

the beam main reinforcement and the U-shaped opening stirrup are fixed in a welding mode.

Technical Field

The invention relates to the technical field of building construction, in particular to a method for installing beam steel bars at a buckling restrained brace embedded part.

Background

With the rapid development of economic technology in China, steel flexible shock insulation, shock absorption and shock absorption technologies are generally adopted in the shock-proof design scheme of high-rise buildings, in order to improve the shock-proof performance of the structure, the traditional shock-proof mode is usually used for resisting the earthquake action through structural reinforcement, the shock-proof effect of the method needs to be improved, with the rapid development of scientific technology, buckling restrained braces are generally adopted in modern structural design, and the main structure is lightened or even prevented from being damaged in the earthquake through the self-rigidity of the buckling restrained braces and the energy consumption generated before the main structure yields.

Usually, each floor in a building is provided with a buckling restrained brace, and the buckling restrained brace embedded parts with different specifications, different section sizes and different forms are various. The buckling restrained brace is connected with the main body structure through the steel embedded part, the steel embedded part is arranged at the position with larger stress in the beam-column joint or the beam span of the concrete structure, and the installation of the beam steel bar at the position of the steel embedded part of the buckling restrained brace directly influences the structure safety.

Under the general condition, the buckling restrained brace steel embedded part is formed by connecting flange plates on two sides through a grid web, and at least the following defects exist in the installation of the steel bars at the complex node of the steel embedded part:

(1) the buckling restrained brace steel embedded part and the beam column steel bar installation construction process are unreasonable, the beam column steel bar is installed when the steel embedded part is installed, and the steel embedded part can be installed only by cutting the beam longitudinal bar or the stirrup.

(2) When the buckling restrained brace steel embedded part and the beam steel bar are installed simultaneously, the beam stirrup cannot be installed at the steel embedded part, secondary cutting is needed, and the stirrup at the embedded part is installed again.

(3) When bucking restraint support steel and burying piece and beam reinforcement bar and installing simultaneously, the steel is buried a position cutting beam stirrup, waits to bury the piece and has installed the stirrup and weld again, because bury the piece and have two flange boards from top to bottom and form, can't weld to beam bottom stirrup, has the not closed phenomenon in stirrup beam bottom.

(4) When the buckling restrained brace steel embedded part and the beam steel bar are installed simultaneously, the phenomenon that the distance between the beam stirrups at the steel embedded part is too large is avoided.

(5) The above construction techniques all have low working efficiency, are not only uneconomical but also unsafe.

Based on the above, an efficient buckling restrained brace steel embedded part installation method is needed.

Disclosure of Invention

In view of the above problems, the present invention aims to provide a method for installing a beam reinforcement at a buckling restrained brace embedded part to solve the problems of low efficiency, uneconomical and unsafe of the existing method for installing the buckling restrained brace embedded part.

The invention provides a method for installing beam steel bars at an embedded part of a buckling restrained brace, which comprises the following steps: arranging a beam template at a preset part of the main body structure, and carrying out positioning and paying-off marking on a steel embedded part on the beam template;

installing a preset steel embedded part at a preset position of the beam template according to the positioning paying-off mark;

connecting one end of a preset beam main rib with a main body structure and fixing the main body of the beam main rib with the embedded steel part;

mounting a beam side die so that the beam side die wraps the steel embedded part and the beam main rib;

and checking and accepting the installation effect of the steel embedded part.

In addition, the preferable scheme is that the steel embedded part at least comprises a T-shaped steel embedded part and an I-shaped steel embedded part, and the T-shaped steel embedded part and the I-shaped steel embedded part both comprise an upper flange plate, a lower flange plate and a grid web plate connected between the upper flange plate and the lower flange plate: wherein the content of the first and second substances,

the length of the upper flange plate of the T-shaped steel embedded part is shorter than that of the lower flange plate of the T-shaped steel embedded part.

In addition, preferably, the preset process of the T-shaped steel embedded part comprises the following steps:

inserting preset U-shaped opening stirrups into gaps of grid webs of the T-shaped steel embedded part from two sides of the T-shaped steel embedded part;

and fixedly connecting the U-shaped opening stirrup with the T-shaped steel embedded part to form a large-sized stirrup.

In addition, preferably, at least two grid webs are arranged between the upper flange plate and the lower flange plate, and a web gap is formed between the grid webs; and the number of the first and second electrodes,

the gap width between each web gap is equal.

In addition, preferably, when the steel embedded part is a T-shaped steel embedded part, the preset process of the T-shaped steel embedded part includes:

the lower ends of the two U-shaped opening stirrups penetrate through the same web plate gap from two sides of the grid web plate and are locked; locking the upper ends of the two U-shaped opening stirrups from the upper side of the upper flange plate;

and fixedly connecting the two U-shaped opening stirrups with the T-shaped steel embedded part to form a large-scale stirrup.

In addition, preferably, when the embedded steel part is a T-shaped embedded steel part, the process of mounting the beam main bar and fixing the beam main bar and the embedded steel part includes:

determining the installation position of the beam main reinforcement according to the profile of the large stirrup and fixedly connecting the beam main reinforcement with the main body structure;

and fixing the beam main reinforcement, the U-shaped opening stirrup and the T-shaped steel embedded part.

In addition, preferably, when the embedded steel part is an i-shaped embedded steel part, the process of installing the beam main reinforcement and fixing the beam main reinforcement and the embedded steel part includes:

installing the beam main rib according to the outline of the I-shaped steel embedded part;

inserting U-shaped opening stirrups into web plate gaps of grid web plates of the I-shaped steel embedded part from two sides of the I-shaped steel embedded part and enabling the U-shaped opening stirrups to be attached to the beam main reinforcements;

and fixing the beam main reinforcement, the U-shaped opening stirrup and the I-shaped steel embedded part.

In addition, preferably, when the steel embedded part is an i-shaped steel embedded part, the upper end and the lower end of each of the two U-shaped open stirrups penetrate through the same web gap from the two sides of the grid web and are correspondingly locked.

In addition, the preferable scheme is that welding points are arranged on the steel embedded part, and the U-shaped opening stirrup and the beam main reinforcement are welded and fixed with the steel embedded part through the welding points.

In addition, preferably, the beam main reinforcement and the U-shaped opening stirrup are fixed through a welding mode.

The method for installing the beam steel bars at the embedded part of the buckling restrained brace improves the traditional steel embedded part construction process, sets corresponding installation methods for different types of steel embedded parts, adopts different construction modes, and ensures the embedded part and the beam stirrups to form an integral large-scale stirrup, thereby ensuring the stirrup spacing at the embedded part, the closure of the stirrups and the spacing between beam main reinforcements, and further ensuring the construction quality and the durability of the beam stirrup encryption area and the construction quality and the durability of the structure.

To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.

Drawings

Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:

FIG. 1 is a flow chart of a method for installing beam reinforcements at an embedded part of a buckling-restrained brace according to an embodiment of the invention;

FIG. 2 is an overall installation view of a steel insert according to an embodiment of the invention;

FIG. 3 is a front view of an I-beam embedment according to an embodiment of the invention;

FIG. 4 is a front view of a T-shaped steel insert according to an embodiment of the present invention;

FIG. 5 is a side view of a steel insert according to an embodiment of the invention;

FIG. 6 is an installation view of an I-shaped steel insert according to an embodiment of the present invention;

FIG. 7 is an installation view of a T-shaped steel embedded part according to an embodiment of the invention;

FIG. 8 is a side view of a steel insert according to an embodiment of the invention;

fig. 9 is an installation locking view of a U-shaped opening stirrup according to an embodiment of the present invention.

Wherein the reference numerals include: the steel embedded part 11, the grid web 12, the lower flange plate 13, the upper flange plate 14, the U-shaped opening stirrup 15, the welding spot 16, the beam template 17, the beam main rib 18 and the main structure 19.

The same reference numbers in all figures indicate similar or corresponding features or functions.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 illustrates a flow of a buckling-restrained brace embedded part beam reinforcement installation method according to an embodiment of the present invention, fig. 2 illustrates an overall installation diagram of a steel embedded part according to an embodiment of the present invention, fig. 3 illustrates a front view structure of an i-shaped steel embedded part according to an embodiment of the present invention, fig. 4 illustrates a front view structure of a T-shaped steel embedded part according to an embodiment of the present invention, fig. 5 illustrates a side view structure of a steel embedded part according to an embodiment of the present invention, fig. 6 illustrates an installation structure of an i-shaped steel embedded part according to an embodiment of the present invention, fig. 7 illustrates an installation diagram of a T-shaped steel embedded part according to an embodiment of the present invention, fig. 8 illustrates a side view installation diagram of a steel embedded part according to an embodiment of the present invention, fig. 9 illustrates an installation locking diagram of a U-shaped open stirrup according to an embodiment of the present invention, and as collectively shown in fig. 1 to fig. 9, the buckling-restrained brace embedded part beam reinforcement installation method provided by the present invention, the method comprises the following steps:

s110: arranging a beam template at a preset position (preset height, preset direction and the like) of a main structure 19 (generally a main beam rib) of a building to be built, wherein the beam template is generally vertical to the main structure 19 and is mainly used for pre-supporting the positioning of a steel embedded part 11 to be installed at the position; after the beam template is fixed, steel embedded part positioning and paying-off marking is carried out on the beam template so as to realize the positioning of the steel embedded part 11 to be installed.

S120: installing a preset steel embedded part 11 at a preset position of a beam template according to a positioning paying-off mark, wherein the positioning paying-off mark is generally a contour line of the steel embedded part 11, and the steel embedded part 11 is fixed on the beam template according to the contour line so as to realize accurate positioning of the steel embedded part 11;

s130: one end of a preset beam main rib 18 is connected with a main body structure 19, the main body of the beam main rib 18 is fixed with the embedded steel part 11, wherein the beam main rib 18 is a main supporting structure of the embedded steel part 11, the embedded steel part 11 can be fixedly connected with the main body structure 19 by arranging the beam main rib 18, and the stability of the building at the position is obviously improved;

s140: after the beam main ribs 18 are installed, the beam side die is installed, so that the beam side die is matched with the beam template to wrap the steel embedded part 11 and the beam main ribs 18;

s150: the installation effect of the beam steel bars at the buckling restrained brace embedded part is checked, whether the parts such as the steel embedded part 11, the beam main bars 18 and the beam template are completely fixed or not is judged, and the stability of the building at the position is ensured.

Specifically, in the actual operation process, the steel embedded parts 11 at least include T-shaped steel embedded parts 11 and i-shaped steel embedded parts 11 according to different construction requirements, and each of the T-shaped steel embedded parts 11 and the i-shaped steel embedded parts 11 includes an upper flange plate 14, a lower flange plate 13, and a grid web 12 connected between the upper flange plate 14 and the lower flange plate 13: the length of the upper flange plate 14 of the T-shaped steel embedded part 11 is shorter than that of the lower flange plate 13 thereof.

In a preferred embodiment of the present invention, in order to improve the installation efficiency of the steel embedded parts 11, different types of case processes may be set according to different types of steel embedded parts 11, and in particular, the preset process of the T-shaped steel embedded parts 11 includes:

inserting a preset U-shaped opening stirrup 15 into a gap of a grid web 12 of the T-shaped embedded steel part 11 from two sides of the T-shaped embedded steel part 11, wherein the U-shaped opening stirrup 15 is a preset stirrup for connecting the embedded steel part 11 and a beam main reinforcement 18, and the U-shaped opening stirrup 15 can also play a role of auxiliary support;

and fixedly connecting the U-shaped open stirrup 15 with the T-shaped embedded steel part 11 to form a large stirrup.

More specifically, at least two grid webs 12 are arranged between the upper flange plate 14 and the lower flange plate 13, and web gaps are formed between the grid webs; in order to improve the stability of the steel insert 11, the gap width between the web gaps is equal.

Wherein, when piece 11 is buried for T style of calligraphy steel to steel when burying piece 11, T style of calligraphy steel buries a preset process of 11 and includes: the lower ends of the two U-shaped opening stirrups 15 penetrate through the same web plate gap from two sides of the grid web plate 12 and are locked; the upper ends of the two U-shaped opening stirrups 15 are locked from above the upper flange plate 14;

and fixedly connecting the two U-shaped open stirrups 15 with the T-shaped embedded steel part 11 to form a large-sized stirrup.

Through burying a piece 11 for a large-scale stirrup with T style of calligraphy steel in advance, not only can guarantee to bury the closure of a position stirrup interval, stirrup, the interval between the roof beam owner muscle 18, can also guarantee the construction quality and the durability of roof beam stirrup encryption district construction quality and structure.

More specifically, when the embedded steel part 11 is a T-shaped embedded steel part 11, the process of installing the beam main rib 18 and fixing the beam main rib 18 and the embedded steel part 11 includes:

determining the installation position of the beam main reinforcement 18 according to the profile of the large stirrup and fixedly connecting the beam main reinforcement 18 with the main structure 19;

the beam main rib 18 is fixed to the U-shaped open stirrup 15 and the T-shaped embedded steel member 11.

The preset large stirrups can be arranged on the beam template and fixed in such a way; the construction method can not generate the problem of secondary repeated construction, can not generate cutting, adjustment and the like on 19-beam steel bars of the original main body structure, and has the advantages of simple and convenient site construction, high construction speed and high efficiency.

In another preferred embodiment of the present invention, when the embedded steel part 11 is an i-shaped embedded steel part 11, the process of installing the beam main rib 18 and fixing the beam main rib 18 to the embedded steel part 11 includes:

mounting a beam main rib 18 according to the outline of the I-shaped steel embedded part 11;

inserting the U-shaped opening stirrup 15 into a web plate gap of a grid web plate 12 of the I-shaped steel embedded part 11 from two sides of the I-shaped steel embedded part 11 and attaching the U-shaped opening stirrup 15 to a beam main rib 18;

and fixing the beam main rib 18, the U-shaped opening stirrup 15 and the I-shaped steel embedded part 11.

It should be noted that, because the specific structures of the T-shaped embedded steel part 11 and the i-shaped embedded steel part 11 are different, different installation modes are provided for different structures, so that the installation stability of the embedded steel part 11 is enhanced while the construction efficiency is improved.

Specifically, when the steel embedded part 11 is an i-shaped steel embedded part 11, the upper and lower ends of the two U-shaped open stirrups 15 both penetrate through the same web gap from both sides of the grid web 12 and are correspondingly locked, and the upper and lower ends of the two U-shaped open stirrups 15 both penetrate through the same web gap from both sides of the grid web 12, so that the stability of fixation between the U-shaped open stirrups 15 and the steel embedded part 11 can be ensured.

In addition, because parts such as the embedded steel part 11, the U-shaped opening stirrup 15, the beam main reinforcement 18 and the like are made of steel, a welding spot 16 can be arranged on the embedded steel part 11, the U-shaped opening stirrup 15 and the beam main reinforcement 18 are welded and fixed with the embedded steel part 11 through the welding spot 16, and the mode of welding and fixing is used, so that the embedded steel part is convenient and fast, and the fixing effect is stable. Of course, the beam main rib 18 and the U-shaped opening stirrup 15 can also be fixed by welding.

During the in-service use, after the installation success of buckling restrained brace embedded part position beam reinforcing bar is checked and accepted, can carry out the concrete filling to reinforcing bar (including roof beam owner muscle 18, steel embedded part 11, U type opening stirrup 15 etc.) clearance department in roof beam side mould and the beam form, after the concrete solidifies completely, can accomplish the construction of waiting to build building this moment.

As can be seen from the foregoing embodiments, the method for installing the beam reinforcing steel bar at the embedded part of the buckling restrained brace provided by the present invention has at least the following advantages:

1. construction is convenient, and the traditional construction technology construction process has the disadvantages of unnecessary damage to the beam steel bar caused by mismatching, material consumption and incapability of ensuring construction quality.

2. Construction quality is guaranteed, different construction modes are adopted for the characteristics of the embedded part structure, the steel embedded part forms a whole large stirrup on the beam stirrup, the stirrup spacing at the embedded part and the closure of the stirrups are guaranteed, the spacing between the beam main reinforcements is guaranteed, and then the construction quality and the durability of the beam stirrup encryption area construction quality and structure are guaranteed.

3. The construction method does not generate the problem of secondary repeated construction, does not generate cutting, adjustment and the like on the original main body structure beam steel bar, and has simple and convenient site construction and high construction speed.

4. The construction process provided by the invention is simple and convenient for site construction, saves labor, accelerates construction progress, saves cost, and can effectively ensure construction quality.

A buckling restrained brace embedded part beam reinforcement installation method according to the present invention is described above by way of example with reference to fig. 1 to 9. However, it should be understood by those skilled in the art that various modifications may be made to the method for installing the beam reinforcing steel bar at the embedded part of the buckling-restrained brace, which is proposed by the present invention, without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.