A pipe truss skeleton membrane structure suitable for soft soil foundation

Abstract

The utility model belongs to building structure technical field, especially relate to a pipe truss skeleton membrane structure suitable for soft soil foundation, including 2 pipe truss end module, a plurality of pipe truss standard module and PE membrane structure module, the pipe truss end module is located at the both ends of structure, the middle of 2 pipe truss end module is equipped with a plurality of pipe truss standard module, and the pipe truss end module and pipe truss standard module are connected, and the bottom of pipe truss end module, pipe truss standard module and the short column of concrete are connected with pin shaft, and the PE membrane structure module is covered and is installed on the outside of pipe truss end module and pipe truss standard module, is used for the connection between pipe truss end module and a plurality of pipe truss standard module, forms the main body space structure, and the structure is strong in resistance support displacement ability, and the construction cycle is short, and the lighting performance is good, and the corrosion resistance is strong, can effectively reduce the cost of building structure, obtains better economic benefit and social benefit.

Description

Technical Field

[0001] This utility model belongs to the field of building structure technology, and specifically relates to a tubular truss frame membrane structure suitable for soft soil foundations. Background Technology

[0002] Many domestic stockpile enclosure projects are built in coastal areas, where the sites are mostly reclaimed land with soft soil foundations. After the stockpile is enclosed, the foundation will experience uneven settlement under the combined loads of the stockpiled materials and the superstructure, leading to support displacement and adversely affecting the superstructure. Currently, most stockpile enclosures for this type of enclosure use reticulated shell structures with metal roof panels. These structures are sensitive to support displacement and have high foundation requirements. To strictly limit support displacement, pile foundations must be used, resulting in higher construction costs. Utility Model Content

[0003] To address the aforementioned issues, this application proposes a tubular truss frame membrane structure suitable for soft soil foundations. This structure exhibits strong resistance to support displacement, short construction period, good lighting performance, and strong corrosion resistance, effectively reducing building structure costs and achieving better economic and social benefits.

[0004] To achieve the above objectives, the following technical solution is adopted: a tubular truss frame membrane structure suitable for soft soil foundations, comprising two tubular truss end modules, several tubular truss standard modules, and PE membrane structure modules; the tubular truss end modules are located at both ends of the structure, and several tubular truss standard modules are provided in the middle of the two tubular truss end modules. There is no connection between the tubular truss end modules and the tubular truss standard modules, nor between the tubular truss standard modules. The bottoms of the tubular truss end modules and the tubular truss standard modules are connected to short concrete columns by pins. The PE membrane structure modules are installed on the outside of the tubular truss end modules and the tubular truss standard modules for connection between the tubular truss end modules and the tubular truss standard modules, forming the main spatial structure.

[0005] Both the tubular truss end module and the tubular truss standard module include a three-hinged arch space tubular truss structure and a buckling restraint brace, with the three-hinged arch space tubular truss structure and the buckling restraint brace connected by a pin.

[0006] The truss end module also includes a gable steel structure. The three-hinged arch space truss structure and the gable steel structure are connected by high-strength bolts, and the gable steel structure is hinged to the short concrete column.

[0007] The PE membrane structure module consists of a PE membrane, an aluminum alloy track, and a waterproof membrane; the PE membrane is fixed in the aluminum alloy track, which is connected to the three-hinged arch space truss structure; a waterproof membrane is fixedly connected at the interface of every two PE membranes.

[0008] The three-hinged arch space truss structure consists of several three-hinged arch trusses, longitudinal trusses, and horizontal web members; the three-hinged arch trusses are connected by several longitudinal trusses; the horizontal web members are connected between the three-hinged arch trusses and the longitudinal trusses; the three-hinged arch trusses, longitudinal trusses, and horizontal web members are all connected by high-strength bolts.

[0009] The three-hinged arch truss consists of two arched trusses connected by pins, and both ends are connected to short concrete columns by pins. The arched truss consists of an upper chord, a lower chord, and web members. The upper chord, lower chord, and web members are connected by welding.

[0010] The longitudinal truss consists of a longitudinal truss upper chord, a longitudinal truss lower chord, a longitudinal truss web member, and corner braces; the longitudinal truss upper chord, lower chord, and web member are connected by welding; the corner braces are connected to the longitudinal truss upper chord by high-strength bolts.

[0011] The buckling restraint support consists of a core unit and a restraint unit; there is no connection between the core unit and the restraint unit, and a lateral gap is reserved.

[0012] The advantages of this utility model are:

[0013] The tubular truss frame membrane structure of this application adopts a "track-like" arrangement longitudinally and a statically determinate structural system laterally, forming a "rigid-flexible" frame membrane structure. This significantly reduces the static indeterminacy degree of the structure, ensuring the safety of the steel structure even with certain horizontal displacement or vertical settlement at the supports. Furthermore, this frame membrane structure system has advantages such as good corrosion resistance, long service life, and short construction period, effectively reducing the investment cost of building structures and achieving better economic and social benefits. Attached Figure Description

[0014] Figure 1 An elevation view of a tubular truss frame membrane structure suitable for soft soil foundations provided by this utility model;

[0015] Figure 2 A plan view of a tubular truss frame membrane structure suitable for soft soil foundation provided by this utility model;

[0016] Figure 3 A schematic diagram of the end module of the tubular truss frame membrane structure suitable for soft soil foundation provided by this utility model;

[0017] Figure 4 A schematic diagram of a standard truss module in a truss frame membrane structure suitable for soft soil foundations provided by this utility model;

[0018] Figure 5 A schematic diagram of a three-hinged arch space tubular truss structure in a tubular truss frame membrane structure suitable for soft soil foundations provided by this utility model;

[0019] Figure 6 A schematic diagram of a three-hinged arch truss structure in a tubular truss frame membrane structure suitable for soft soil foundations provided by this utility model;

[0020] Figure 7 A schematic diagram of the longitudinal truss structure in a tubular truss frame membrane structure suitable for soft soil foundations provided by this utility model;

[0021] Figure 8 A schematic diagram of a buckling-restrained support in a tubular truss frame membrane structure suitable for soft soil foundations, provided by this utility model;

[0022] Figure 9 A schematic diagram of a PE membrane structure module in a tubular truss frame membrane structure suitable for soft soil foundations provided by this utility model;

[0023] In the diagram, 1. End module of the tubular truss; 2. Standard module of the tubular truss; 3. PE membrane structure module; 31. PE membrane; 32. Aluminum alloy track; 33. Waterproof membrane; 4. Concrete short column; 5. Three-hinged arch space tubular truss structure; 51. Three-hinged arch truss; 511. Arch truss; 5111. Top chord of the arch truss; 5112. Bottom chord of the arch truss; 5113. Web member of the arch truss; 52. Longitudinal truss; 521. Top chord of the longitudinal truss; 522. Bottom chord of the longitudinal truss; 523. Web member of the longitudinal truss; 524. Corner brace; 53. Horizontal web member; 6. Buckling-restrained brace; 61. Core unit; 62. Restrained unit; 7. Gable steel structure. Detailed Implementation

[0024] To make the purpose, technical solution, and advantages of this skeleton membrane structure clearer, the skeleton membrane structure will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1-9As shown, a tubular truss frame membrane structure suitable for soft soil foundation includes two tubular truss end modules 1, several tubular truss standard modules 2, and PE membrane structure modules 3. The tubular truss end modules 1 are located at both ends of the structure, and several tubular truss standard modules 2 are provided in the middle of the two tubular truss end modules 1. There is no connection between the tubular truss end modules 1 and the tubular truss standard modules 2, nor between the tubular truss standard modules 2. The bottom of the tubular truss end modules 1 and the tubular truss standard modules 2 are connected to the concrete short columns 4 by pins. The PE membrane structure modules 3 are installed on the outside of the tubular truss end modules 1 and the tubular truss standard modules 2, and are used for the connection between the tubular truss end modules 1 and the tubular truss standard modules 2 to form the main spatial structure.

[0026] In this embodiment, the truss end module 1, the truss standard module 2, and the PE membrane structure module 3 all adopt a standard modular structure, and each module is prefabricated in the factory. There are no steel components between the truss end module 1 and the truss standard module 2 and several truss standard modules 2, and they are only connected by the PE membrane structure module 3.

[0027] This embodiment primarily addresses buildings in soft soil foundation areas. Due to the low bearing capacity of soft soil foundations, settlement and deformation are prone to occur. Therefore, the truss end modules 1 and several standard truss modules 2 are not interconnected. The two truss end modules 1, several standard truss modules 2, and the external PE membrane structure module 3 constitute the main spatial structure. This spatial system adopts a "track-like" arrangement longitudinally and a three-hinged arch statically determinate structural system laterally, forming a "rigid-flexible" skeleton membrane structure. This significantly reduces the static indeterminacy degree of the structure, ensuring structural safety even with certain horizontal displacement or vertical settlement at the supports. Furthermore, the individual forces on the truss end modules 1 or several standard truss modules 2 do not affect each other. When a support of one module shifts outward, it will not affect the force on other modules, ensuring the safety of the steel structure. Simultaneously, the structure of this application also has advantages such as good corrosion resistance, long service life, short construction period, and effective reduction of investment costs for building structures, resulting in better economic and social benefits.

[0028] Both the tubular truss end module 1 and the tubular truss standard module 2 include a three-hinged arch space tubular truss structure 5 and a buckling restraint brace 6, with the three-hinged arch space tubular truss structure 5 and the buckling restraint brace 6 connected by a pin.

[0029] In this embodiment, the three-hinged arch space truss structure 5 is hinged to the buckling restraint brace 6. When the structure experiences support displacement, the energy dissipation effect of the buckling restraint brace 6 is utilized to reduce the impact of the support displacement on the structure.

[0030] The truss end module 1 also includes a gable steel structure 7. The three-hinged arch space truss structure 5 and the gable steel structure 7 are connected by high-strength bolts, and the gable steel structure 7 is hinged to the concrete short column 4.

[0031] In this embodiment, the steel structure 7 of the gable wall resists the longitudinal horizontal load of the gable wall and transfers the longitudinal horizontal load to the concrete short column 4 and the main spatial structure.

[0032] The PE membrane structure module 3 consists of a PE membrane 31, an aluminum alloy track 32, and a waterproof membrane 33. The PE membrane 31 is fixed in the aluminum alloy track 32, and the aluminum alloy track 32 is connected to the three-hinged arch space tube truss structure 5. A waterproof membrane 33 is fixedly connected to the interface of every two PE membranes 31. Specifically, the waterproof membrane 33 is located above the interface of each PE membrane 31 and is welded to the PE membrane 31.

[0033] The PE membrane structure module 3 serves as the enclosure structure, forming the building space and shape. It distributes the loads acting on it to the end module 1 of the tubular truss and several standard tubular truss modules 2 via aluminum alloy tracks. Finally, the PE membrane structure module 3 and the main spatial structure system constitute a complete skeleton membrane structure.

[0034] The three-hinged arch space truss structure 5 is composed of several three-hinged arch trusses 51, longitudinal trusses 52, and horizontal web members 53; the three-hinged arch trusses 51 are connected by several longitudinal trusses 52; the horizontal web members 53 are connected between the three-hinged arch trusses 51 and the longitudinal trusses 52; the three-hinged arch trusses 51, longitudinal trusses 52, and horizontal web members 53 are all connected by high-strength bolts.

[0035] The three-hinged arch truss 51 is composed of two arch trusses 511, which are connected by pins and connected to the short concrete columns 4 at both ends by pins. The arch truss 511 is composed of an upper chord 5111, a lower chord 5112, and a web member 5113. The upper chord 5111, lower chord 5112, and web member 5113 are connected by welding.

[0036] In this embodiment, the two arched trusses 511 are hinged together and both ends are hinged to the short concrete columns 4, forming a three-hinged arch system. This is a statically determinate structure. Even if the supports experience horizontal displacement or vertical settlement, the structure will not generate additional internal forces, ensuring the safety of the steel structure.

[0037] The longitudinal truss 52 is composed of a longitudinal truss upper chord 521, a longitudinal truss lower chord 522, a longitudinal truss web member 523, and a corner brace 524; the longitudinal truss upper chord 521, the longitudinal truss lower chord 522, and the longitudinal truss web member 523 are connected by welding; the corner brace 524 is connected to the longitudinal truss upper chord 521 by high-strength bolts.

[0038] The buckling-restrained brace 6 consists of a core unit 61 and a restraint unit 62; the core unit 61 and the restraint unit 62 are not connected and a lateral gap is provided. During normal use, the core unit 61 bears conventional loads such as structural gravity loads and wind loads, and the deformation is within the elastic range. When the structure experiences support displacement and the force exceeds the yield strength of the core unit 61, the core unit 61 enters plastic deformation and generates hysteretic energy dissipation through axial tensile-compressive cyclic yielding. The restraint unit 62 prevents the core unit from buckling through lateral restraint, ensuring that its bearing capacity does not decrease under compression.

[0039] The embodiments of the skeleton membrane structure have been described in detail above with reference to the accompanying drawings. However, the skeleton membrane structure is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the skeleton membrane structure system.

Claims

1. A tubular truss frame membrane structure suitable for soft soil foundations, characterized in that, It includes two tubular truss end modules, several tubular truss standard modules, and a PE membrane structure module. The tubular truss end modules are located at both ends of the structure. Several tubular truss standard modules are located in the middle of the two tubular truss end modules. There is no connection between the tubular truss end modules and the tubular truss standard modules, nor between the tubular truss standard modules. The bottom of the tubular truss end modules and the tubular truss standard modules are connected to the short concrete columns by pins. The PE membrane structure module is installed on the outside of the tubular truss end modules and the tubular truss standard modules for connection between the tubular truss end modules and the tubular truss standard modules, forming the main spatial structure.

2. The tubular truss frame membrane structure suitable for soft soil foundations according to claim 1, characterized in that, Both the tubular truss end module and the tubular truss standard module include a three-hinged arch space tubular truss structure and a buckling-restrained brace, with the three-hinged arch space tubular truss structure and the buckling-restrained brace connected by a pin.

3. A tubular truss frame membrane structure suitable for soft soil foundations according to claim 2, characterized in that, The truss end module also includes a gable steel structure. The three-hinged arch space truss structure and the gable steel structure are connected by high-strength bolts, and the gable steel structure is hinged to the concrete short column.

4. A tubular truss frame membrane structure suitable for soft soil foundations according to claim 1, characterized in that, The PE membrane structure module consists of a PE membrane, an aluminum alloy track, and a waterproof membrane; the PE membrane is fixed in the aluminum alloy track, which is connected to the three-hinged arch space truss structure; a waterproof membrane is fixedly connected at the interface of every two PE membranes.

5. A tubular truss frame membrane structure suitable for soft soil foundations according to claim 2, characterized in that, The three-hinged arch space truss structure consists of several three-hinged arch trusses, longitudinal trusses, and horizontal web members; the three-hinged arch trusses are connected by several longitudinal trusses; the horizontal web members are connected between the three-hinged arch trusses and the longitudinal trusses; the three-hinged arch trusses, longitudinal trusses, and horizontal web members are all connected by high-strength bolts.

6. A tubular truss frame membrane structure suitable for soft soil foundations according to claim 5, characterized in that, The three-hinged arch truss consists of two arched trusses connected by pins, and both ends are connected to short concrete columns by pins. The arched truss consists of an upper chord, a lower chord, and web members. The upper chord, lower chord, and web members are connected by welding.

7. A tubular truss frame membrane structure suitable for soft soil foundations according to claim 5, characterized in that, The longitudinal truss consists of a longitudinal truss upper chord, a longitudinal truss lower chord, a longitudinal truss web member, and corner braces; the longitudinal truss upper chord, lower chord, and web member are connected by welding; the corner braces are connected to the longitudinal truss upper chord by high-strength bolts.

8. A tubular truss frame membrane structure suitable for soft soil foundations according to claim 2, characterized in that, The buckling restraint support consists of a core unit and a restraint unit; there is no connection between the core unit and the restraint unit, and a lateral gap is reserved.

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