阅读说明：本技术 基于bim的成型钢筋与定型模板组合应用施工方法 (BIM-based formed steel bar and forming template combined application construction method ) 是由 周书东 张彤炜 叶雄明 郑阳焱 顾德常 汪嫄全 麦镇东 刘亮 张益� 于 2019-09-04 设计创作，主要内容包括：本发明提供了一种基于BIM的成型钢筋与定型模板组合应用施工方法,包括以下步骤：预先对建筑物的已有设计文件及配模方案的资料进行收集,并依据所述资料,用BIM软件进行建模；将各柱成型钢筋通过机械吊运及人工辅助的方式吊运至相应施工位置并进行安装,形成多个柱钢筋模块；将各立杆竖直地安装于施工位置,将各横杆分别安装于立杆上；将各梁定型模板安装于相邻两柱钢筋模块之间,将各板定型模板安装于立杆的上方；将各次梁成型钢筋安装于第二安装空间,将各主梁钢筋安装于第一安装空间,将板钢筋网安装于板定型模板上；安装连接钢筋,从而形成钢筋模板结构；对钢筋模板结构浇筑混凝土。(The invention provides a BIM-based construction method for combined application of a formed steel bar and a formed template, which comprises the following steps: collecting the existing design files of the building and the data of the mold matching scheme in advance, and modeling by using BIM software according to the data; hoisting each column forming steel bar to a corresponding construction position in a mechanical hoisting and manual assistance mode and installing to form a plurality of column steel bar modules; vertically installing each upright post at a construction position, and respectively installing each cross rod on the upright posts; mounting each beam shaping template between two adjacent column steel bar modules, and mounting each plate shaping template above the vertical rods; installing each secondary beam forming steel bar in the second installation space, installing each main beam steel bar in the first installation space, and installing a plate steel bar net on the plate forming template; installing connecting steel bars so as to form a steel bar formwork structure; and pouring concrete into the steel bar formwork structure.)

1. A BIM-based construction method for combined application of formed steel bars and forming templates is characterized by comprising the following steps:

(1) collecting the existing design files of the building and the data of the model distribution scheme in advance, and modeling by using BIM software according to the data to optimize the building scheme so as to obtain an optimized scheme;

(2) providing data support, engineering quantity statistics, raw material purchasing and finished product information management for processing equipment of the formed steel bar and the formed template according to the optimized BIM model;

(3) providing a formed steel bar, a forming template, vertical rods and transverse rods, wherein the formed steel bar comprises a plurality of column forming steel bars, secondary beam forming steel bars, main beam steel bars and a plate steel bar net, and the forming template comprises a plurality of column forming templates, beam forming templates and plate forming templates;

(4) the processed formed reinforcing steel bars and the formed templates are transported to a construction site and classified, stacked and stored according to corresponding requirements;

(5) according to the optimization scheme, positioning and paying off are carried out on the columns, the column forming reinforcing steel bars are hoisted to corresponding construction positions in a mechanical hoisting and manual assisting mode and are installed, and the column forming templates are respectively arranged on the peripheries of the column forming reinforcing steel bars in a surrounding mode, so that a plurality of column reinforcing steel bar modules are formed;

(6) according to the optimization scheme, vertically installing the vertical rods at the construction positions, and respectively installing the cross rods on the vertical rods;

(7) according to the optimization scheme, the beam sizing templates are respectively and vertically arranged between the tops of two adjacent column steel bar modules, the plate sizing templates are respectively and alternately arranged above the vertical rods, a first installation space is formed between the adjacent beam sizing templates and the adjacent plate sizing templates, and a second installation space is formed between the two adjacent plate sizing templates;

(8) according to the optimization scheme, the secondary beam forming steel bars, the main beam steel bars and the plate steel bar net are sequentially and correspondingly installed on the second installation space, the first installation space and the plate shaping template;

(9) according to the optimization scheme, connecting steel bars are arranged among the column forming steel bars, the secondary beam forming steel bars and the main beam steel bars, so that a steel bar formwork structure is formed;

(10) and pouring concrete into the reinforced formwork structure.

2. The BIM-based shaped rebar and form work combined application construction method as claimed in claim 1, wherein in the step (5), the area percentage of the connection joint of the column-shaped rebar is controlled within a range of not more than 50%.

3. The BIM-based formed rebar and form combined application construction method of claim 1, wherein in the step (5), the column form is installed in sequence from end closing plates to the periphery and from bottom to top according to the positioning line.

4. The BIM-based formed rebar and form combined application construction method of claim 1, wherein in the step (5), back ridges and alignment bolts are installed on the column form.

5. The BIM-based formed rebar and formworks combined application construction method of claim 1, wherein in the step (5), the diagonal brace is installed on the column formworks.

6. The BIM-based formed reinforcing bar and form work combined application construction method of claim 1, wherein in the step (7), after the plate form work is installed, the flatness and the elevation of the layer are detected, and if the flatness of the plate form work deviates from the elevation of the layer, the correction is performed by adjusting the vertical rods.

7. The BIM-based formed steel bar and formworks combined application construction method of claim 1, wherein in the step (9), the connection modes of the column formed steel bar, the secondary beam formed steel bar and the main beam steel bar and the connecting steel bar include but are not limited to binding, welding and mechanical connection.

8. The BIM-based formed steel bar and form work combined application construction method of claim 1, wherein in the step (10), when the strength of the concrete meets the form removal requirement, the column form work, the beam form work and the plate form work are disassembled according to the principle of first installation and then removal and then installation and first removal.

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a BIM-based construction method for combined application of formed steel bars and a forming template.

Background

In recent years, with the development of our society and the increase of economy, the population dividend of our country is disappearing, and the construction industry faces the problems of labor shortage and rapid rise of labor cost. Meanwhile, the traditional construction mode also faces increasingly outstanding problems of environmental pollution, poor operation environment, low construction efficiency, difficulty in ensuring construction quality and the like. Aiming at the problems, China vigorously develops the fabricated building, develops and develops a series of policy measures, and supports and promotes the development of the fabricated building. At present, assembly type buildings achieve certain results, but still have some problems which need to be solved urgently, such as high construction cost, lack of industrial workers, uncontrollable construction period and quality, safety problems of vertical member structures and the like.

Therefore, a BIM-based formed steel bar and shaping template combined application construction method which can ensure the engineering quality and has low cost is urgently needed.

Disclosure of Invention

The invention aims to provide a BIM-based formed steel bar and shaping template combined application construction method which can ensure the engineering quality and has low cost.

In order to achieve the aim, the invention provides a BIM-based construction method for combined application of formed steel bars and forming templates, which comprises the following steps: (1) collecting the existing design files of the building and the data of the model distribution scheme in advance, and modeling by using BIM software according to the data to optimize the building scheme so as to obtain an optimized scheme; (2) providing data support, engineering quantity statistics, raw material purchasing and finished product information management for processing equipment of the formed steel bar and the formed template according to the optimized BIM model; (3) providing a formed steel bar, a forming template, vertical rods and transverse rods, wherein the formed steel bar comprises a plurality of column forming steel bars, secondary beam forming steel bars, main beam steel bars and a plate steel bar net, and the forming template comprises a plurality of column forming templates, beam forming templates and plate forming templates; (4) the processed formed reinforcing steel bars and the formed templates are transported to a construction site and classified, stacked and stored according to corresponding requirements; (5) according to the optimization scheme, positioning and paying off are carried out on the columns, the column forming reinforcing steel bars are hoisted to corresponding construction positions in a mechanical hoisting and manual assisting mode and are installed, and the column forming templates are respectively arranged on the peripheries of the column forming reinforcing steel bars in a surrounding mode, so that a plurality of column reinforcing steel bar modules are formed; (6) according to the optimization scheme, vertically installing the vertical rods at the construction positions, and respectively installing the cross rods on the vertical rods; (7) according to the optimization scheme, the beam sizing templates are respectively and vertically arranged between the tops of two adjacent column steel bar modules, the plate sizing templates are respectively and alternately arranged above the vertical rods, a first installation space is formed between the adjacent beam sizing templates and the adjacent plate sizing templates, and a second installation space is formed between the two adjacent plate sizing templates; (8) according to the optimization scheme, the secondary beam forming steel bars, the main beam steel bars and the plate steel bar net are sequentially and correspondingly installed on the second installation space, the first installation space and the plate shaping template; (9) according to the optimization scheme, connecting steel bars are arranged among the column forming steel bars, the secondary beam forming steel bars and the main beam steel bars, so that a steel bar formwork structure is formed; (10) and pouring concrete into the reinforced formwork structure.

Preferably, in the step (5), the area percentage of the coupling joint of the column-shaped reinforcing bars is controlled to be not more than 50%.

Preferably, in the step (5), the column sizing templates are installed in sequence from the end sealing plates to the periphery and from bottom to top according to the positioning and paying-off.

Preferably, in the step (5), a back edge and an alignment bolt are installed on the column sizing template.

Preferably, in the step (5), a diagonal brace is installed on the column sizing form.

Preferably, in the step (7), after the board sizing template is installed, the flatness of the board sizing template and the elevation of the floor are detected, and if the flatness of the board sizing template has a deviation from the elevation of the floor, the board sizing template is corrected by adjusting the vertical rod.

Preferably, in the step (9), the connection modes of the column-forming reinforcing steel bars, the secondary beam-forming reinforcing steel bars and the main beam reinforcing steel bars and the connecting reinforcing steel bars include, but are not limited to, binding, welding and mechanical connection.

Preferably, in the step (10), when the strength of the concrete meets the form removal requirement, the column forming formwork, the beam forming formwork and the plate forming formwork are removed according to the principle of removing after installation and removing after installation.

Compared with the prior art, in the aspect of engineering quality, the construction simulation, collision inspection and design optimization are carried out on the formed steel bars and the shaped templates (namely the column formed steel bars, the secondary beam formed steel bars, the main beam steel bars, the column shaped templates, the beam shaped templates and the plate shaped templates) of the main body structure of the building by virtue of the visualization, simulation analysis and collision inspection functions of the BIM technology, the intersection content of the construction technology is displayed to constructors in a model or video mode, and the constructors are helped to understand the intersection content more accurately and efficiently; meanwhile, the established BIM model can provide data support, engineering quantity statistics, raw material purchasing, finished product information management and the like for processing equipment of the formed steel bars and the formed templates (namely the column formed steel bars, the secondary beam formed steel bars, the main beam steel bars, the column formed templates, the beam formed templates and the plate formed templates), and is strong in traceability, clear in responsibility main body and more beneficial to ensuring the engineering quality; the column forming reinforcing steel bars, the secondary beam forming reinforcing steel bars, the main beam reinforcing steel bars, the column forming templates, the beam forming templates and the plate forming templates can be mechanically produced in a factory, the forming precision is high, the quality is good, the reinforcing steel bar quality and the concrete forming quality are improved, the plastering-free requirement is met, fine project casting is facilitated, the operation strength of a construction site is reduced, and the operation environment of workers is improved. In the aspect of engineering cost, compared with a concrete prefabricated component, the column-shaped reinforcing steel bar, the secondary beam-shaped reinforcing steel bar and other shaped reinforcing steel bars are lighter in weight, the construction machinery cost is favorably reduced, the construction efficiency is higher, the investment of constructors is favorably reduced, the labor cost is reduced, the material price is lower, and the material cost is favorably reduced, so the engineering cost is lower. In the aspect of structural safety, because the invention is constructed based on the BIM technology, the joint connection is safe and reliable, the integrity is good, and compared with a vertical concrete prefabricated component, the structure is safer and more reliable; compared with the traditional construction mode, the column forming reinforcing steel bars, the secondary beam forming reinforcing steel bars and other forming reinforcing steel bars are firm in connection and high in quality, and the structural safety of the whole building is guaranteed.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure constructed by applying the BIM-based formed steel bar and the forming template in a combined manner.

Fig. 2 is a schematic view of a connection structure among the column-shaped reinforcing steel bars, the secondary beam-shaped reinforcing steel bars and the main beam reinforcing steel bars of the present invention.

Fig. 3 is a schematic perspective view of a column-shaped reinforcing bar according to the present invention.

Fig. 4 is a schematic perspective view of the secondary beam-forming reinforcing bar according to the present invention.

Fig. 5 is a schematic structural view of the reinforcing mesh formed under the plate of the present invention.

Fig. 6 is a schematic structural view of the reinforcing mesh formed on the upper part of the plate according to the present invention.

Fig. 7 is a schematic structural view of the back edge and the alignment bolt of the present invention.

Fig. 8 is a perspective view of the sprag of the present invention.

Fig. 9 is a schematic view of the cross bar of the present invention.

Figure 10 is a schematic view of the construction of the pole of the present invention.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 10, the construction method of the present invention for combining and applying the formed steel bar and the form template based on BIM includes the following steps:

s1, collecting the existing design files and the data of the model matching scheme of the building in advance, modeling by using BIM software according to the data, and optimizing the building scheme through the functions of visualization, simulation analysis, collision check and the like after the BIM software is modeled so as to obtain an optimized scheme, thereby ensuring that the effects of simplicity, high efficiency, economy and environmental protection can be achieved when the formed steel bars and the formed templates on the layer are constructed on site;

s2, according to the optimized BIM model, data support, engineering quantity statistics, raw material purchasing, finished product information management and the like can be provided for processing equipment of the formed steel bars and the formed templates, traceability is strong, a responsibility main body is clear, and engineering quality is guaranteed;

s3, providing a formed steel bar, a shaped template, upright rods 7 and cross rods 8, wherein the formed steel bar comprises a plurality of column formed steel bars 1, secondary beam formed steel bars 2, main beam steel bars 3 and a plate steel bar net 9, and the shaped template comprises a plurality of column shaped templates 4, beam shaped templates 5 and plate shaped templates 6;

s4, the processed formed steel bars and the formed templates are transported to a construction site and classified, stacked and stored according to corresponding requirements;

s5, positioning and paying off the columns according to the optimized scheme, hoisting and transporting each column-shaped steel bar 1 to a corresponding construction position in a mechanical hoisting and manual assistance mode, and installing, wherein the area percentage of the connecting joints of the column-shaped steel bars 1 is controlled within a range not more than 50%, and the connecting modes of the steel bars include but are not limited to binding connection, welding connection and mechanical connection; respectively enclosing each column sizing template 4 at the periphery of the column forming steel bar 1 so as to form a plurality of column steel bar modules, wherein the column sizing templates 4 are sequentially installed from an end sealing plate to the periphery and from bottom to top according to positioning and paying-off, back ridges 41, alignment bolts 42 and inclined struts 43 are installed on the column sizing templates 4, and meanwhile, the verticality of the column sizing templates 4 is corrected so as to meet the specified requirements;

s6, vertically installing the upright posts 7 at the construction position according to the optimization scheme, and respectively installing the cross bars 8 on the upright posts 7;

s7, according to an optimization scheme, vertically installing each beam forming template 5 between the tops of two adjacent column reinforcement modules, and installing each plate forming template 6 above the vertical rods 7 at intervals, wherein whether the bottom plate of the beam forming template 5 is vertical to the column forming template 4 is checked, if deviation exists, the verticality between the bottom plate of the beam forming template 5 and the column forming template 4 is corrected, and then the side plates of the beam forming template 5 are installed; checking whether the diagonal line of the floor is correct, if not, starting to install the panels of the plate forming template 6, firmly connecting the panels of the plate forming template 6 through a connecting piece, detecting the flatness of the plate forming template 6 and the elevation of the floor after the plate forming template 6 is installed, and if the flatness of the plate forming template 6 has deviation from the elevation of the floor, correcting by adjusting the vertical rods 7; a first installation space 31 is formed between the adjacent beam shaping templates 5 and the adjacent plate shaping templates 6, and a second installation space 21 is formed between the adjacent two plate shaping templates 6;

s8, according to the positioning lines and control lines of the optimized scheme, the secondary beam-forming steel bars 2, the main beam steel bars 3, and the plate steel bar net 9 are sequentially and correspondingly installed on the second installation space 21, the first installation space 31, and the plate-shaping formwork 6, that is, the secondary beam-forming steel bars 2 are sequentially installed in the second installation space 21, the main beam steel bars 3 are installed in the first installation space 31, and the plate steel bar net 9 is installed on the plate-shaping formwork 6;

s9, checking and correcting the position relation among the secondary beam forming steel bars 2, the main beam steel bars 3 and the plate steel bar net 9, a positioning line and a control line according to the optimization scheme, and installing connecting steel bars among the column forming steel bars 1, the secondary beam forming steel bars 2 and the main beam steel bars 3 after no error exists, so as to form a steel bar template structure, wherein the connecting modes of the column forming steel bars 1, the secondary beam forming steel bars 2 and the main beam steel bars 3 and the connecting steel bars include but are not limited to binding, welding and mechanical connection;

s10, pouring concrete into the steel bar formwork structure, and disassembling the column shaping formwork 4, the beam shaping formwork 5 and the plate shaping formwork 6 according to the principle of firstly assembling and then disassembling and secondly assembling and firstly disassembling when the strength of the concrete meets the formwork disassembling requirement;

and S11, cleaning the disassembled column sizing templates 4, beam sizing templates 5 and plate sizing templates 6, and classifying, stacking and storing the column sizing templates, the beam sizing templates and the plate sizing templates according to the regulations, or continuously using the column sizing templates, the beam sizing templates and the plate sizing templates for other building constructions.

In step S3, the surface of the pillar setting jig 4 is cleaned before installation, and a suitable amount of a mold release agent for the setting jig is applied. In step S6, the plate reinforcing mesh 9 includes a plate lower portion formed reinforcing mesh piece 91 and a plate upper portion formed reinforcing mesh piece 92, and the specific connection manner of the plate lower portion formed reinforcing mesh piece 91 and the plate upper portion formed reinforcing mesh piece 92 is well known to those skilled in the art, so it is not cumbersome here.

The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.