Design and construction method of an assembled exhibition hall building structure system and the building structure system

Abstract

The present invention provides a design and construction method for an assembled exhibition hall building structure system, including a design process, which includes modular design and detailed design. The modular design divides the entire assembled exhibition hall building structure system into at least a roof structure, a support structure, a concrete structure, and a foundation structure from top to bottom. During the modular design process, the roof structure is preferentially subjected to fuzzification treatment to simulate the load and stiffness of the roof structure. After obtaining the load and stiffness of the roof structure, the support structure design process is started. The present invention first performs modular design on the roof structure, which takes a long time to design, to obtain the data required for the start of the design of the support structure, concrete structure, and foundation structure, thereby advancing the design processes of the support structure, concrete structure, and foundation structure and shortening the overall design time.

Description

Technical Field

[0001] The present invention relates to a design and construction method for a building structure system, and particularly to a design and construction method for a prefabricated exhibition hall building structure system. Background Art

[0002] An exhibition hall building refers to a large building complex with an exhibition space as the core space, an exhibition venue as a large space, and necessary equipment rooms arranged around. Due to space requirements, large-span steel structures are generally used. There are mainly two building structure forms for conventional exhibition halls. One is that the surrounding buildings adopt a concrete frame structure and the roof adopts a steel structure roof; the other is that the steel structure system is adopted throughout, the column feet adopt steel structures, and the components are directly connected by welding.

[0003] The normal sequence of building structure design follows the load transfer path from the roof structure, support system to the foundation structure; while the construction process is from the foundation, floor slab, support system to the roof structure, and the two sequences are opposite. Generally, there are three more processes between the completion of building steel structure design and the arrival of components at the construction site, namely steel structure detailed design, material procurement, and component processing and fabrication. Generally, the detailed design time for an exhibition hall of general scale is about 1 month, the material procurement time is normally not less than half a month, and the processing and fabrication time is about 1 month. In view of Chinese specifications and actual usage requirements, the scale of a single standard exhibition hall building in China is generally not more than 10,000 ㎡ at present; public buildings have relatively high requirements for building shapes, and the external shape scheme is generally determined in a short time and needs to be finally determined through repeated reports and reviews, so it takes a long time. Summary of the Invention

[0004] The present invention provides a design and construction method for a prefabricated exhibition hall building structure system and a building structure system, so as to carry out construction in advance and shorten the total construction period of design and construction.

[0005] The present invention provides a design and construction method for a prefabricated exhibition hall building structure system, including a design process, and the design process includes modular design and detailed design. The modular design divides the entire prefabricated exhibition hall building structure system into at least a roof structure, a support structure, a concrete structure, and a foundation structure from top to bottom. During the modular design process, the roof structure is preferentially subjected to fuzzification treatment to simulate the load and stiffness of the roof structure. After obtaining the load and stiffness of the roof structure, the support structure design process is started.

[0006] Further, the design process includes:

[0007] S101. Obtain the design requirements of the exhibition hall building structure system;

[0008] S102. Based on the design requirements, modular design is adopted to divide the functional areas of the exhibition hall building structure system, forming several building modules. The building modules at least include a roof structure, a support structure, a concrete structure, and a foundation structure;

[0009] S103. According to the design requirements, the roof structure is fuzzified to calculate the range of mechanical property requirements of the roof structure. The range of mechanical property requirements at least includes the load range and the stiffness range of the roof structure; further deep design is carried out based on the fuzzification of the roof structure to obtain the accurate modeling data of the roof structure;

[0010] S104. After modular design, based on the range of mechanical property requirements, accurate modeling calculation is carried out on the support structure to at least determine the cross-section of the support frame beams and columns and the support layout plan of the support structure, so that the support structure can meet the support for the roof structure;

[0011] S105. Based on the fuzzification data of the roof structure and the modeling data of the support structure, accurate modeling is carried out on the concrete structure and the foundation structure to form a specific construction plan.

[0012] Furthermore, it also includes the construction process:

[0013] S201. Construction of the foundation structure;

[0014] S202. Construction of the concrete structure;

[0015] S203. Construction of the support structure;

[0016] During the deep design of the roof structure, the construction process is started.

[0017] Even further, it also includes the process of ordering materials for the support structure. After completing S104, the process of ordering materials for the support structure is executed.

[0018] Even further, in S104, the section stress ratio of the support structure model is controlled within 0.8 - 0.9, preferably 0.81.

[0019] Furthermore, the fuzzification process includes:

[0020] S301. Model the roof structure using a truss or a space frame;

[0021] S302. Calculate the range of mechanical property requirements of the roof structure. The range of mechanical property requirements at least includes the load range and the stiffness range of the roof structure.

[0022] The present invention also discloses an assembled exhibition hall building structure system, which is constructed by using the design and construction method of the above-mentioned assembled exhibition hall building structure system.

[0023] Furthermore, the roof structure is a steel roof structure, including main trusses, secondary trusses, longitudinal horizontal supports of the roof, transverse horizontal supports of the roof, and roof steel beams. The main trusses are arranged at intervals. Secondary trusses are provided on both opposite long sides of the roof structure. The secondary trusses are fixedly connected to one end of each main truss to form a frame structure. The transverse horizontal supports of the roof are arranged on the secondary trusses. The longitudinal horizontal supports of the roof are arranged at the edges of the roof structure, and the longitudinal horizontal supports of the roof are fixedly connected to the adjacent main trusses. A plurality of roof steel beams are provided between the two secondary trusses, and the roof steel beams are fixedly connected to each main truss.

[0024] Furthermore, steel support components are provided on both opposite long sides of the support structure. Both opposite short sides of the support structure are composed of a plurality of wind-resistant columns arranged at intervals. The steel support components include steel frame columns, longitudinal inter-column supports, transverse inter-column supports, steel frame beams, and steel secondary beams. The steel frame columns are composed of two or more steel columns, and longitudinal inter-column supports are provided on some or all of the steel frame columns; the longitudinal inter-column supports are connected to the steel columns of the steel frame columns, and transverse inter-column supports are provided between at least some adjacent steel frame columns; the steel frame beams are horizontal to the ground, and the steel frame beams are fixedly connected to the steel frame columns, and steel secondary beams are provided on the steel frame beams.

[0025] Furthermore, a hinged support is provided at the top of the steel column, and the hinged support is connected to the roof structure so that the steel column can deflect relative to the roof structure.

[0026] Compared with the prior art, the present invention first performs a fuzzification process on the roof structure with a long design time to obtain the data required for starting the design of the support structure, concrete structure, and foundation structure, thereby advancing the design process of the support structure, concrete structure, and foundation structure and shortening the overall design time. Description of the Drawings

[0027] Figure 1 is the design and construction process;

[0028] Figure 2 is the layout diagram of the roof structure of the embodiment of the present invention;

[0029] Figure 3 is the layout diagram of the support structure of the embodiment of the present invention;

[0030] Figure 4 is the structural schematic diagram of the connection mode of the roof structure and the support structure of the embodiment of the present invention;

[0031] Figure 5 is the structural schematic diagram of the hinged support of the embodiment of the present invention.

[0032] 1. Main truss; 2. Secondary truss; 3. Longitudinal horizontal roof bracing; 4. Transverse horizontal roof bracing; 5. Roof steel beam; 6. Steel frame column; 7. Longitudinal inter-column bracing; 8. Transverse inter-column bracing; 9. Steel frame beam; 10. Steel secondary beam; 11. Wind-resistant column. Detailed implementation manners

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0034] The embodiment of the present invention discloses a design and construction method for an assembled exhibition hall building structure system, including a design process, and the design process includes modular design and detailed design. The modular design divides the entire assembled exhibition hall building structure system into at least a roof structure, a support structure, a concrete structure, and a foundation structure from top to bottom. During the modular design process, the roof structure is preferentially subjected to fuzzification processing to simulate the load and stiffness of the roof structure. After obtaining the load and stiffness of the roof structure, the support structure design process is started.

[0035] Due to the influence of forces such as wind pressure and wind uplift, the traditional roof structure is complex and takes a long time for design. Compared with the roof structure, the support structure, the concrete structure, and the foundation structure are simple and require less design time. Therefore, in the traditional design and construction process, the roof structure design takes the longest time. The embodiment of the present invention calculates only the physical force information such as the weight of the roof structure itself and the influence of environmental factors such as wind load through modular design, rather than precisely designing the specific composition of the roof structure, so that the support structure, the concrete structure, and the foundation structure can be quickly started in the early stage, reducing the design time required and accelerating the construction progress.

[0036] Optionally, the design process includes:

[0037] S101. Obtain the design requirements of the exhibition hall building structure system;

[0038] Among them, before starting the design, determine the design requirements of the exhibition hall building structure system, such as the area and height of the exhibition hall, and the local environmental characteristics (such as environmental factors such as typhoon, earthquake, and temperature change during the year);

[0039] S102. Based on the design requirements, adopt modular design to divide the functions of the exhibition hall building structure system to form several building modules, and the building modules at least include a roof structure, a support structure, a concrete structure, and a foundation structure;

[0040] Among them, the building modules respectively include a roof structure, a support structure, a concrete structure, and a foundation structure. By functionally dividing the exhibition hall building structure system, separate designs for each module are realized. Compared with the traditional integrated design, the design difficulty can be effectively reduced;

[0041] S103. According to the design requirements, perform fuzzy processing on the roof structure, calculate the range of mechanical performance requirements of the roof structure, and the range of mechanical performance requirements at least includes the load range and stiffness range of the roof structure; continue to carry out in-depth design based on the fuzzy processing of the roof structure to obtain accurate modeling data of the roof structure;

[0042] Among them, when performing fuzzy processing on the roof structure, mainly calculate the stress condition of the roof structure, and then calculate the forces generated on the support structure, such as vertical gravity, wind pressure, etc.;

[0043] S104. After modular design, based on the range of mechanical performance requirements, accurately model and calculate the support structure, and at least determine the cross-sectional areas of the support frame beams and columns and the support layout plan of the support structure, so that the support structure can meet the support requirements for the roof structure;

[0044] S105. Based on the fuzzy processing data of the roof structure and the modeling data of the support structure, accurately model the concrete structure and the foundation structure to form a specific construction plan.

[0045] In particular, in S104, the section stress ratio of the support structure model is controlled within 0.8 - 0.9, preferably 0.81.

[0046] Among them, after the fuzzy processing of the roof structure, approximate physical information of the roof structure can be obtained. Based on this information, the support structure can be designed to meet the stress requirements of the roof structure. No matter what method is used for the specific design of the roof structure, the support structure can meet it. Based on the design of this support structure, the modeling designs of the concrete structure and the foundation structure are further completed, and the construction plans of the concrete structure and the foundation structure are obtained respectively.

[0047] Optionally, it also includes the construction process:

[0048] S201. Construction of the foundation structure;

[0049] Among them, the construction of the foundation structure specifically refers to the construction of the foundation;

[0050] S202. Construction of the concrete structure;

[0051] Among them, the construction of the concrete structure specifically refers to the specific load-bearing concrete structures such as load-bearing columns, load-bearing walls, and floors set on the foundation;

[0052] S203. Construction of the support structure;

[0053] Among them, the support structure is installed on the ground and is used to support the roof structure;

[0054] In the detailed design of the roof structure, the construction process is started.

[0055] Among them, the detailed design of the roof structure takes a long time. During the detailed design process of the roof structure, the support structure design, concrete structure design, and foundation structure design can all be completed. Therefore, the construction process can be started in advance during the detailed design process of the roof structure.

[0056] Particularly, it also includes the process of ordering materials for the support structure. After S104 is completed, the process of ordering materials for the support structure is executed.

[0057] Among them, the foundation structure construction and concrete structure construction itself have many requirements for materials such as concrete raw materials and steel bars, while the support structure has special requirements for materials. Therefore, after S104 is completed, by ordering materials for the support structure in advance, the production and preparation process of the support structure materials can be accelerated, facilitating the rapid start of the construction process of the support structure.

[0058] Optionally, the fuzzy processing includes:

[0059] S301. Model the roof structure using a truss or grid.

[0060] S302. Calculate the range of mechanical property requirements of the roof structure, and the range of mechanical property requirements includes at least the load range and stiffness range of the roof structure.

[0061] In the design, the entire building structure is divided into multiple sub - structure units such as the roof structure, lower support structure, lower concrete structure, and foundation structure, and each part is connected by nodes with high adaptability to form an overall force - bearing system; after each sub - structure unit is divided, when the roof shape is not determined, simply model the roof using a truss or grid (no need for accurate modeling, only for load and stiffness calculation simulation), accurately model and calculate the support frame, obtain the cross - sections of the support frame beams and columns and the support layout (to ensure structural safety, the stress ratio of the cross - section can be controlled at about 0.81). This support frame structure system meets the various parameter requirements of the building structure design, including stress, displacement, deflection, etc. Make full use of the time for steel structure detailed design and material procurement to gradually stabilize the upper - structure plan and carry out the upper - structure design work.

[0062] The embodiment of the present invention also discloses an assembled exhibition hall building structure system, and the assembled exhibition hall building structure system is constructed by using the design and construction method of the above - mentioned assembled exhibition hall building structure system.

[0063] Among them, according to the layout and mechanical characteristics of the building structure, each structural member of the prefabricated exhibition hall building structure system is divided into horizontal members and vertical members. The plane members bear the structural self-weight and the additional loads on the upper part; the vertical members bear the vertical loads such as the roof and floor loads transmitted by the plane members and at the same time bear the loads generated by horizontal actions such as wind and earthquake; the roof members form a stable structural system through steel beams and steel horizontal supports; the vertical members form a stable structural system through column feet and vertical supports; the vertical members are connected to the foundation or the embedded layer through hinged column feet, and at the same time, the large-span roof truss or grid is connected to the vertical members through supports to form a stable structural system; both the horizontal members and the vertical members are made of steel structures, and the materials are Q235B, Q355B, Q390, Q420, etc., and the elastic modulus is 2.06×10 5 Mpa; all connection nodes adopt bolt connections, and the bolts mainly adopt 10.9S high-strength bolts; the anchor bolts adopt Q235B, Q355B, Q390 steel.

[0064] Optionally, as Figure 2 shown, the roof structure is a roof steel structure, including main trusses 1, secondary trusses 2, longitudinal roof horizontal braces 3, transverse roof horizontal braces 4, and roof steel beams 5. Each of the main trusses 1 is arranged at intervals, and secondary trusses 2 are provided on both opposite long sides of the roof structure. One end of each secondary truss 2 is fixedly connected to each main truss 1 to form a frame structure. The transverse roof horizontal braces 4 are arranged on the secondary trusses 2, and the longitudinal roof horizontal braces 3 are arranged at the edge of the roof structure, and the longitudinal roof horizontal braces 3 are fixedly connected to the adjacent main trusses 1. A plurality of roof steel beams 5 are provided between the two secondary trusses 2, and the roof steel beams 5 are fixedly connected to each main truss 1.

[0065] Among them, as Figure 2 shown, the main trusses 1 and the roof steel beams 5 mainly bear the vertical loads of the roof structure. In addition to bearing the vertical loads, the secondary trusses 2 and the roof steel beams 5 also provide lateral constraints for the main trusses 1 to prevent the main trusses 1 from experiencing lateral instability; the longitudinal roof horizontal braces 3 and the transverse roof horizontal braces 4 bear and transmit the horizontal loads, ensure the spatial integral action of the structure, avoid the lateral instability of the compression bars, and at the same time ensure the stability and convenience during the installation of the structure.

[0066] In the embodiment of the present invention, the roof part is installed according to the divided structural units, and the steps are successively: main truss 1 → secondary truss 2 → transverse roof horizontal brace 4 → longitudinal horizontal brace → roof steel beam 5.

[0067] Particularly, steel support assemblies are provided on both long sides of the support structure that face each other, and both short sides of the support structure that face each other are composed of a plurality of wind-resistant columns 11 spaced apart. The steel support assembly includes steel frame columns 6, longitudinal inter-column braces 7, transverse inter-column braces 8, steel frame beams 9, and steel secondary beams 10. The steel frame columns 6 are composed of two or more steel columns, and longitudinal inter-column braces 7 are provided on some or all of the steel frame columns 6; the longitudinal inter-column braces 7 are connected to the steel columns of the steel frame columns 6, and transverse inter-column braces 8 are provided between at least some adjacent steel frame columns 6; the steel frame beams 9 are horizontal to the ground and are fixedly connected to the steel frame columns 6, and steel secondary beams 10 are provided on the steel frame beams 9.

[0068] Among them, as Figure 3 shown, the support structure forms an integral frame structure by the steel frame columns 6 and the steel frame beams 9. To increase the structural stiffness, inter-column braces are arranged between the columns, and wind-resistant columns 11 are arranged on both sides of the building to form a closed building. The steel frame beams 9 and the steel frame columns 6 form a basic frame, steel secondary beams 10 are arranged in the middle, braces are arranged between the columns, and the steel beams and the steel columns are connected by all bolts.

[0069] Particularly, a hinged support is provided at the top of the steel column, and the hinged support is connected to the roof structure, enabling the steel column to deflect relative to the roof structure.

[0070] Among them, the hinged support is as Figure 5 shown, and the top can swing relative to the steel column.

[0071] The embodiment of the present invention adopts the design of a fully prefabricated building structure system. As Figure 4 shown, bolted fixed connections are used between the steel column feet and the foundation structure, and hinged supports are used to connect the tops of the steel columns and the roof structure. The hinged supports enable the tops of the steel columns and the roof structure to deflect, simplifying the construction difficulty and conforming to the development direction of prefabricated buildings. At the same time, the hinged supports in the embodiment of the present invention simplify the connection method between the support structure and the roof structure, so that the support structure and the roof structure can be divided into independent building modules, meeting the above-mentioned design and construction methods, and thus achieving the effect of shortening the design and construction process.

[0072] In summary, compared with the prior art, the embodiment of the present invention has the following advantages:

[0073] (1) The embodiment of the present invention adopts a design method adapted to the construction sequence according to the characteristics of the exhibition hall, divides the entire building into several relatively independent and stable modules, and uses hinged joints to connect the modules; each module independently forms an independent force system, and the structural calculation and construction check are relatively simple;

[0074] (2) The embodiments of the present invention can fully adapt to the construction sequence of buildings. First, the lower structure is designed to meet the on-site construction requirements. The time for the in-depth design and material procurement of the lower support frame is utilized to complete the design work of the roof structure, and finally the building structure design work is completed, thereby achieving the purpose of shortening the overall project duration. Generally, the design cycle of a project using traditional methods is 6 months, including 2 - 3 months for the plan, 2 months for the preliminary design, and Figure 2 months (including the time for the preliminary design review and construction drawing review). The construction period is 2 - 3 years (using the on-site construction method instead of the prefabricated method of the present invention); while for the project adopting the embodiments of the present invention, the total construction period from design to construction is 9 months, effectively shortening the overall design and construction cycle.

[0075] (3) The embodiments of the present invention are prefabricated buildings, and all structural components are processed and manufactured in the factory and installed on-site using bolt connections;

[0076] (4) In terms of construction, the components of the present invention are all installed by means of engineering prefabrication and on-site bolt connection. The construction site is less affected by environmental interference factors, which is conducive to on-site construction operations. At the same time, it has the advantages of fast construction progress, energy conservation, environmental protection, labor saving, and improved working conditions;

[0077] (5) The column foot of the present invention adopts a hinged connection, and the foundation structure mainly bears vertical tensile and compressive forces and does not need to bear structural bending moments, ensuring that the foundation design and construction are relatively simple and convenient. It has obvious advantages in terms of construction period and cost, especially for projects with relatively complex geological conditions and relatively fast project construction progress requirements;

[0078] When the design and construction method of the embodiments of the present invention is actually applied, it can meet the needs of existing exhibition groups with multiple exhibition areas of about 10,000 ㎡, and can also be applied to buildings with other building scales and usage functions.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that after reading the specification of this application, they can still modify the specific implementation manners of the present invention or make equivalent substitutions, but these modifications or changes do not depart from the protection scope of the pending claims of this invention application.

Claims

1. A design and construction method for an assembled exhibition hall building structure system, including the design process, characterized in that, The prefabricated exhibition hall building structure system at least includes a roof structure, a support structure, a concrete structure, and a foundation structure from top to bottom. The design process successively includes roof structure design, support structure design, concrete structure design, and foundation structure design according to the start time. The roof structure design successively includes modular design and detailed design according to the start time. After the modular design is completed, the support structure design process is started; The design process includes: S101. Obtain the design requirements of the exhibition hall building structure system; S102. Based on the design requirements, use modular design to divide the functions of the exhibition hall building structure system to form several building modules. The building modules at least include a roof structure, a support structure, a concrete structure, and a foundation structure; S103. According to the design requirements, perform fuzzy processing on the roof structure, calculate the range of mechanical performance requirements of the roof structure. The range of mechanical performance requirements at least includes the load range and stiffness range of the roof structure; continue to perform detailed design based on the fuzzy processing of the roof structure to obtain the accurate modeling data of the roof structure; S104. After modular design, based on the range of mechanical performance requirements, after obtaining the load and stiffness of the roof structure, start the support structure design process; perform accurate modeling calculation on the support structure to at least determine the cross-section of the support frame beam and column and the support layout plan of the support structure so that the support structure can meet the support for the roof structure; S105. Based on the fuzzy processing data of the roof structure and the modeling data of the support structure, perform accurate modeling on the concrete structure and the foundation structure to form a specific construction plan.

2. The design and construction method of an assembled exhibition hall building structure system according to claim 1, characterized in that, It also includes a construction process: S201. Foundation structure construction; S202. Concrete structure construction; S203. Support structure construction; In the detailed design of the roof structure, start the construction process.

3. The design and construction method of an assembled exhibition hall building structure system according to claim 1, characterized in that It also includes a support structure material ordering process. After completing S104, execute the support structure material ordering process.

4. According to the design and construction method of a prefabricated exhibition hall building structure system described in claim 1, characterized in that In S104, the section stress ratio of the support structure model is controlled within 0.8 - 0.

9.

5. According to the design and construction method of a prefabricated exhibition hall building structure system described in claim 4, characterized in that In S104, the section stress ratio of the support structure model is preferably controlled at 0.

81.

6. The design and construction method of an assembled exhibition hall building structure system according to claim 1, characterized in that, The fuzzy processing includes: S301. Model the roof structure using a truss or a grid; S302. Calculate the range of mechanical performance requirements of the roof structure. The range of mechanical performance requirements at least includes the load range and stiffness range of the roof structure.

7. An assembled exhibition hall building structure system, characterized in that, The prefabricated exhibition hall building structure system is constructed by using the design and construction method of the prefabricated exhibition hall building structure system described in any one of claims 1 - 6.

8. The prefabricated exhibition hall building structure system according to claim 7, characterized in that, The roof structure is a steel roof structure, including main trusses, secondary trusses, longitudinal roof horizontal bracings, transverse roof horizontal bracings, and roof steel beams. The main trusses are arranged at intervals, and secondary trusses are provided on both opposite long sides of the roof structure. The secondary trusses are fixedly connected to one end of each main truss to form a frame structure. The transverse roof horizontal bracings are arranged on the secondary trusses, and the longitudinal roof horizontal bracings are arranged at the edges of the roof structure and are fixedly connected to the adjacent main trusses. A number of roof steel beams are provided between the two secondary trusses, and the roof steel beams are fixedly connected to each main truss.

9. The prefabricated exhibition hall building structure system according to claim 8, characterized in that Steel support assemblies are provided on both opposite long sides of the support structure, and both opposite short sides of the support structure are composed of a number of wind-resistant columns at intervals. The steel support assembly includes steel frame columns, longitudinal inter-column bracings, transverse inter-column bracings, steel frame beams, and steel secondary beams. The steel frame columns are composed of two or more steel columns, and longitudinal inter-column bracings are provided on some or all of the steel frame columns; the longitudinal inter-column bracings are connected to the steel columns of the steel frame columns, and transverse inter-column bracings are provided between at least some adjacent steel frame columns; the steel frame beams are horizontal to the ground and are fixedly connected to the steel frame columns, and steel secondary beams are provided on the steel frame beams.

10. The prefabricated exhibition hall building structure system according to claim 9, characterized in that, A hinged support is provided at the top of the steel column, and the hinged support is connected to the roof structure so that the steel column can deflect relative to the roof structure.

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