Frame-based gas rib type gas film structure and construction method

Abstract

The invention discloses an air rib type air film system based on a frame and a construction method. The air rib type air film system comprises a frame supporting structure, an air rib structure and a film structure. The frame supporting structure comprises a supporting unit; the supporting units are arranged at intervals in the longitudinal direction. The supporting unit comprises a stand column and a top support. The air rib structure is mounted on the outer side of the frame supporting structure and is formed by splicing a plurality of air rib type membrane structure units; each air rib type membrane structure unit comprises an air rib and a connecting pipe; the air ribs are arranged in parallel at intervals, and one group of air ribs are horizontally arranged; the group of air ribs are communicated with one another through connecting pipes to form one or more independent inflation loops; pressure sensors are arranged on the surfaces of the air ribs; and the membrane structure covers the outside of the air rib structure and is detachably connected with the air rib structure. The technical problems that a traditional gas film structure is small in application range and insufficient in stability, too large film surface deformation and gas rib instability are prone to occurring, and a gas rib type film structure is poor in adjustment flexibility, large in operation difficulty and high in cost are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground engineering construction, and in particular to a frame-based air-ribbed air membrane system and a construction method. Background Art

[0002] The foundation pit air film can form a relatively closed space, thus achieving the green and environmentally friendly effect of controlling dust and noise; at the same time, it can eliminate the impact of adverse weather such as rain on the construction progress and save construction costs; it can also greatly enhance the safety and civilized image of the construction site and has been gradually promoted and applied in the construction of urban foundation pit projects.

[0003] At present, the foundation pit air membrane mainly includes air-supported membrane structure and air-ribbed membrane structure. The maximum span of the air membrane is less than 200m. The main rib tube needs to increase with the span. The top is usually curved, which is not suitable for the narrow and long construction site of the urban rail transit foundation pit and the space requirements such as straight up and straight down rectangular blocks due to site constraints. In addition, the traditional air-supported membrane structure and air-ribbed membrane structure have certain limitations in stability and bearing capacity. For example, when facing a complex external load environment, it may be insufficient to rely solely on the inflation pressure of the air membrane to maintain the stability of the overall structure, and it is easy to cause problems such as excessive deformation of the membrane surface and instability of the air ribs. Moreover, the traditional air-ribbed membrane structure has poor adjustment flexibility in its structural form under different usage scenarios and functional requirements, and it is difficult to quickly and conveniently transform or expand it to meet the diverse building requirements. In addition, during the installation and maintenance process, due to the lack of an effective auxiliary frame structure, the operation is difficult and the cost is high. Summary of the invention

[0004] The present invention provides a frame-based air-ribbed air membrane system and construction method, which aims to solve the technical problems that traditional air membrane structures have a small application range, insufficient stability, and are prone to excessive deformation of the membrane surface and instability of the air ribs. It also aims to solve the technical problems that traditional air-ribbed membrane structures have poor adjustment flexibility, greater operational difficulty and higher cost.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions.

[0006] A frame-based air-rib air membrane system, comprising a frame support structure, an air-rib structure and a membrane structure; the frame support structure comprises a support unit; the support unit has a group and is arranged at intervals in the longitudinal direction; the support unit comprises a column and a top support; the columns have at least two and are arranged at intervals in the transverse direction; the top support is a triangular truss structure, which is arranged on the top of a group of columns arranged correspondingly in the transverse direction; longitudinal beams are connected between longitudinally adjacent columns and longitudinally adjacent top supports; the air-rib structure is installed on the outside of the frame support structure, and the air-rib structure is formed by splicing a plurality of air-rib membrane structure units. Each air-rib membrane structure unit is connected to the corresponding side of the frame support structure; the air-rib membrane structure unit includes air ribs and connecting pipes; the air ribs are arranged in a group in parallel and spaced apart, and the air ribs in a group are arranged horizontally; the connecting pipes connect the adjacent air ribs, and the air ribs in a group are interconnected through the connecting pipes to form one or more independent inflation circuits; a pressure sensor is arranged on the surface of the air rib, and the pressure sensor monitors the pressure changes inside the air rib in real time and transmits the data to the control system; the membrane structure covers the outside of the air rib structure and is detachably connected to the air rib structure; A sensor group for sensing the external environment is installed at intervals on the surface of the membrane structure, and each sensor in the sensor group is connected to the central control system respectively; the sensor group collects external environment data in real time and transmits the data to the central control system; The ribbed membrane structure unit is connected to an air pump and an air release valve, and the air pump and the air release valve are connected to a central control system; the central control system calculates the required air rib pressure value according to the sensor data and instructs the air pump or the air release valve to work; An electric tension regulator is installed at the connection between the membrane structure and the air rib structure, and tension sensors are arranged at intervals on the membrane structure; the tension sensors and the electric tension regulator are respectively connected to the central control system; the electric tension regulator keeps the membrane surface in a uniform stress state by adjusting the tension of the membrane structure.

[0007] Preferably, there are six air-rib membrane structure units, which are respectively arranged on the front side, rear side, left side, right side and top two slopes of the supporting structure; door openings are left on the front air-rib membrane structure units and the membrane structure; and doors are installed at the door openings.

[0008] Preferably, the top support includes a triangular outer frame, a middle vertical support and side vertical supports; the middle vertical support is arranged between the middle of the bottom rod and the top angle of the triangular outer frame; there are two side vertical supports, which are respectively arranged between the middle vertical support and the bottom angles on both sides of the triangular outer frame; the upper end of the side vertical support is supported on the bottom of the oblique rod on the corresponding side of the triangular outer frame, and the lower end of the side vertical support is supported on the bottom rod of the triangular outer frame; an oblique support is arranged between the bottom of the middle vertical support and the top of the side vertical support.

[0009] Preferably, a longitudinal connecting rod is provided between the middle parts of longitudinally adjacent columns.

[0010] Preferably, the membrane structure and the air rib structure are connected by a clamp, and the clamp is made of an aluminum alloy clamp or a stainless steel clamp, and is connected to the connecting pipe of the air rib structure; a reinforcing rope or a reinforcing belt is arranged at the edge of the membrane structure, and the reinforcing rope or the reinforcing belt is tied to the frame support structure or the connecting pipe of the air rib structure to improve the tensile strength and tear resistance of the membrane structure.

[0011] Preferably, a fine-tuning device for a frame structure: an independent foundation is provided at the bottom of the column; electric fine-tuning jacks and displacement sensors are spaced apart at the top of the independent foundation, and the displacement sensor and the fine-tuning jacks are respectively connected to a central control system; a base plate is provided at the bottom of the column, and the base plate is installed on the top of a group of fine-tuning jacks; when the frame support structure is subjected to lateral force or uneven settlement, the central control system instructs the fine-tuning jacks to work according to the data fed back by the sensors, and fine-tunes the frame support structure.

[0012] Preferably, the sensor group includes a wind speed sensor, a temperature sensor and a snow pressure sensor; the wind speed sensor, the temperature sensor and the snow pressure sensor are respectively connected to the central control system.

[0013] Preferably, the air-ribbed membrane structure unit is connected to the frame support structure by binding; and binding belts are preset on the air-ribbed membrane structure unit.

[0014] A construction method of a frame-based air-ribbed air membrane system comprises the following steps: Step 1: Design the air-ribbed air membrane system based on the frame construction drawing, process and manufacture it at the manufacturer, and transport it to the construction site.

[0015] Step 2: Install the columns.

[0016] Step 3: Install longitudinal beams on top of longitudinally adjacent columns.

[0017] Step 4: Make the top support.

[0018] Step 5: Install the top support on the top of the corresponding horizontal column.

[0019] Step 6: Connect the longitudinal beams between the tops of the adjacent longitudinal supports. When all the supports are connected, the construction of the frame support structure is completed.

[0020] Step 7: Install the air-rib membrane structure units one by one on the outside of the frame support structure.

[0021] Step 8: After all air-ribbed membrane structure units are installed, the construction of the entire air-ribbed membrane system is completed.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention discloses a frame-based air-ribbed air membrane system and a construction method. Compared with the existing air-ribbed membrane structure, the present invention overcomes the problem that the span of the traditional membrane structure is limited and the main rib tube needs to be increased as the span increases. In the frame-based air-ribbed air membrane system provided by the present invention, the air ribs are arranged in the horizontal plane instead of the traditional vertical plane, which reduces the pressure, power consumption and cross-section required to support the shape of the air ribs, thereby reducing the engineering cost.

[0023] 2. Compared with the existing air-ribbed membrane structure, the frame-based air-ribbed air membrane system and construction method disclosed in the present invention overcome the problem of limited spatial shape. The frame-based air-ribbed air membrane system and construction method provided by the present invention utilize the frame to set and maintain the spatial shape. The air-ribbed membrane structure is filled in the frame and forms an enclosed space together with the frame, avoiding the problem that the top of the existing air-ribbed membrane structure can only be arc-shaped, thereby broadening the scope of application and usability.

[0024] 3. The vertical load bearing capacity of the frame-based air rib air membrane system disclosed in the present invention is enhanced: the existence of the frame support structure enables the structure to effectively bear vertical loads such as deadweight and snow load. The frame support structure is composed of multiple support units connected, and its stable spatial geometry (such as a triangular combination structure) can evenly transfer the vertical load to the foundation. For example, in the case of heavy snow accumulation, the frame shares most of the snow pressure, and the pressure on the air rib and membrane structure is relatively reduced, reducing the risk of collapse of the structure due to excessive snow load.

[0025] 4. The lateral load resistance of the frame-based air-rib air membrane system of the present invention is improved: through reasonable frame design and air-rib layout, it can effectively resist lateral forces such as wind load and earthquake load; the air rib provides internal support and works with the frame to ensure that the membrane structure will not be excessively deformed or damaged under the action of lateral force. This mechanism of coordinated resistance to lateral loads enables the structure to remain stable under severe climatic conditions (such as strong winds and earthquakes).

[0026] 5. The frame support structure of the present invention is connected by bolts or welding, and reinforcing plates or reinforcing ribs are arranged at key positions to ensure the integrity of the frame. This stable connection method enables the various rods to work together when the structure is subjected to stress, avoiding local damage that causes failure of the overall structure. For example, the reinforcement measures at the nodes can effectively disperse stress concentration, making the frame more reliable when subjected to complex and variable loads. The air rib structure and the membrane structure closely cooperate with the frame support structure to form an organic whole. The air ribs provide uniform support for the membrane structure, allowing the membrane structure to maintain a stable shape; the membrane structure transfers the external load to the air ribs and the frame. At the same time, by monitoring and controlling the real-time adjustment of the internal pressure of the air ribs by the system, and optimizing the connection between the membrane structure, the frame and the air ribs, the reliability of the entire structure is further improved, and the safety hazards caused by the failure of local components are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the frame-based air-rib air membrane system of the present invention.

[0029] Figure 2 It is a schematic diagram of the overall structure in which the air rib membrane structure unit of the present invention is arranged outside the frame support structure.

[0030] Figure 3 It is a schematic diagram of the frame support structure in the present invention.

[0031] Figure 4 It is a schematic diagram of the side structure of the air rib membrane structure unit in the present invention arranged on the outside of the frame support structure.

[0032] Figure 5 It is a structural schematic diagram of the connection between the column and the independent foundation in the present invention.

[0033] Figure 6 It is a structural schematic diagram of the connection between the membrane structure and the air rib membrane structure unit in the present invention.

[0034] Figure numerals: 1 - frame support structure, 1.1 - support unit, 1.1.1 - column, 1.1.2 - top support, 1.1.2a - triangular outer frame, 1.1.2b - middle vertical support, 1.1.2c - side vertical support, 1.1.2d - diagonal support, 1.2 - longitudinal beam, 1.3 - longitudinal connecting rod, 2 - membrane structure, 3 - air rib membrane structure unit, 3.1 - air rib, 3.2 - connecting pipe, 4 - pressure sensor, 6 - air pump, 7 - air release valve, 8 - electric tension regulator, 9 - door opening, 10 - clamp, 13 - independent foundation, 14 - displacement sensor, 15 - fine-tuning jack, 16 - bottom plate, 17 - binding belt, 18 - tension sensor, 19 - sensor group. DETAILED DESCRIPTION

[0035] like Figure 1-6 As shown, this frame-based air-rib air membrane system includes a frame support structure 1, an air-rib structure and a membrane structure 2; the frame support structure includes a support unit 1.1; the support unit 1.1 has a group and is arranged at intervals along the longitudinal direction; the support unit 1.1 includes a column 1.1.1 and a top support 1.1.2; there are at least two columns 1.2, which are arranged at intervals along the transverse direction; the top support 1.1.2 is a triangular truss structure, which is arranged on the top of a group of columns 1.1.1 arranged correspondingly in the transverse direction; longitudinal beams 1.2 are connected between longitudinally adjacent columns 1.1.1 and between longitudinally adjacent top supports 1.1.2; the air-rib structure is installed on the outside of the frame support structure, and the air-rib structure consists of multiple The air-rib membrane structure units 3 are spliced ​​together; each air-rib membrane structure unit 3 is connected to the corresponding side of the frame support structure; the air-rib membrane structure unit 3 includes air ribs 3.1 and connecting pipes 3.2; there is a group of air ribs 3.1, which are arranged in parallel and spaced apart, and a group of air ribs 3.1 are all horizontally arranged; the connecting pipes 3.2 connect adjacent air ribs 3.1, and a group of air ribs 3.1 are interconnected through connecting pipes to form one or more independent inflation circuits; the air ribs 3.1 are made of high-strength, weather-resistant rubber or plastic materials, and the interior is an inflation channel, which can be inflated and deflated by inflation equipment to adjust the internal pressure of the air ribs, thereby providing support for the membrane structure 2. A pressure sensor 4 is arranged on the surface of the air rib 3.1, and the pressure sensor 4 monitors the pressure changes inside the air rib 3.1 in real time and transmits the data to the control system; the membrane structure 2 covers the outside of the air rib structure and is detachably connected to the air rib structure, and adopts high-performance membrane structure materials with functions such as waterproof, sunscreen, and self-cleaning, such as polytetrafluoroethylene PTFE coated glass fiber membrane or polyvinyl chloride PVC membrane, etc. The membrane structure is tightly connected to the air rib structure through connectors, so that the external load is evenly transferred to the air rib structure and the frame support structure.

[0036] Sensor groups 19 for sensing the external environment are installed at intervals on the surface of the membrane structure 2, and each sensor in the sensor group 19 is connected to the central control system respectively; the sensor group 19 collects external environment data in real time and transmits the data to the central control system; a heating wire is arranged on the inner side of the membrane structure 2; the air rib membrane structure unit 3 is connected to the inflation pump 6 and the deflation valve 7, and the inflation pump 6 and the deflation valve 7 are connected to the central control system; the central control system calculates the required air rib pressure value according to the sensor data, and instructs the inflation pump 6 or the deflation valve 7 to work; An electric tension regulator 8 is installed at the connection between the membrane structure 2 and the air rib structure; in this embodiment, the electric tension regulator 8 is arranged on the connecting pipe 3.2 and is located at the edge position and / or corner position of each air rib membrane structure unit 3; tension sensors 18 are arranged at intervals on the membrane structure 2; the tension sensors 18 and the electric tension regulator 8 are respectively connected to the central control system; the electric tension regulator 8 keeps the membrane surface in a uniform stress state by adjusting the tension of the membrane structure.

[0037] In this embodiment, the air rib membrane system is arranged above the foundation pit, and the air membrane of the foundation pit forms a relatively closed space, thereby achieving the green environmental protection effect of controlling dust and noise; at the same time, it can eliminate the influence of adverse weather such as rain on the progress of foundation pit construction. Therefore, the support unit 1.1 spans across the foundation pit, and two columns 1.1.1 are arranged in the support unit 1.1, and the two columns 1.1.1 are arranged on the opposite sides of the foundation pit. There are six air rib membrane structure units 3, which are respectively arranged on the front side, rear side, left side, right side and top two slopes of the frame support structure 1; door openings 9 are left on the front air rib membrane structure unit 3 and membrane structure 2; doors are installed at the door openings 9.

[0038] In this embodiment, the top support 1.1.2 includes a triangular outer frame 1.1.2a, a middle vertical support 1.1.2b and a side vertical support 1.1.2c; the middle vertical support 1.1.2b is arranged between the middle of the bottom rod and the top corner of the triangular outer frame 1.1.2a; there are two side vertical supports 1.1.2c, which are respectively arranged between the middle vertical support 1.1.2b and the bottom corners on both sides of the triangular outer frame 1.1.2a; the upper end of the side vertical support 1.1.2c is supported on the bottom of the oblique rod on the corresponding side of the triangular outer frame 1.1.2a, and the lower end of the side vertical support 1.1.2c is supported on the bottom rod of the triangular outer frame 1.1.2a; an oblique support 1.1.2d is arranged between the bottom of the middle vertical support 1.1.2b and the top of the side vertical support 1.1.2c.

[0039] In this embodiment, the diagonal rod of the triangular outer frame 1.1.2a is connected to the middle vertical brace 1.1.2b, the side vertical brace 1.1.2c and the diagonal brace 1.1.2d by bolts; the bottom rod of the triangular outer frame 1.1.2a is connected to the middle vertical brace 1.1.2b, the side vertical brace 1.1.2c and the diagonal brace 1.1.2d by bolts; the bottom rod of the triangular outer frame 1.1.2a is connected to the columns 1.1.1 on both sides by bolts; the longitudinal beam 1.2 is connected to the top of the column 1.1.1 / triangular outer frame 1.1.2a by bolts. The connection parts of each rod of the frame support structure 1 are reinforced to ensure the integrity and stability of the frame. For example, reinforcing plates or reinforcing ribs are set at the nodes to improve the local bearing capacity of the frame.

[0040] In this embodiment, the top support 1.1.2 is an isosceles triangle, and three groups of longitudinal beams 1.2 are provided, wherein one group of longitudinal beams 1.2 is connected between the top corners of one group of top supports 1.1.2, and two groups of longitudinal beams 1.2 are respectively connected between the bottom corners on both sides of one group of top supports 1.1.2.

[0041] In this embodiment, a longitudinal connecting rod 1.3 is provided between the middle parts of the longitudinally adjacent upright posts 1.1.1.

[0042] In this embodiment, the membrane structure 2 and the air rib structure are connected by a clamp 10, and the clamp 10 is an aluminum alloy clamp or a stainless steel clamp, and is connected to the connecting pipe 3.2 of the air rib structure; the shape and size of the clamp 10 connection are customized according to the shape of the frame and the air rib structure to ensure a tight and firm connection while avoiding damage to the membrane structure. The clamp 10 here includes an upper clamp, a lower clamp and a bolt; a connecting membrane is preset on the inner side of the membrane structure 2; the clamp 10 is clamped on the edge of the connecting membrane or the membrane structure 2. A reinforcing rope or a reinforcing belt is provided at the edge of the membrane structure 2, and the reinforcing rope or the reinforcing belt is tied to the frame support structure 1 or the connecting pipe 3.2 of the air rib structure to improve the tensile strength and tear resistance of the membrane structure.

[0043] In this embodiment, the frame structure fine-tuning device: an independent foundation 13 is provided at the bottom of the column 1.2; an electric fine-tuning jack 15 and a displacement sensor 14 are spaced apart at the top of the independent foundation 13, and the displacement sensor 14 and the fine-tuning jack 15 are respectively connected to the central control system; a base plate 16 is provided at the bottom of the column 1.1.1, and the base plate 16 is installed on the top of a group of fine-tuning jacks 15; when the frame support structure 1 is subjected to lateral force or uneven settlement, the central control system instructs the fine-tuning jack 15 to work according to the data fed back by the sensor, and fine-tunes the shape and posture of the frame support structure 1 to ensure the stability and safety of the overall structure.

[0044] In this embodiment, the sensor group includes a wind speed sensor, a light intensity sensor, a temperature sensor and a snow pressure sensor; the wind speed sensor, the light intensity sensor, the temperature sensor and the snow pressure sensor are respectively connected to the central control system. For example, in a strong wind environment, the wind speed sensor can quickly detect the change of wind speed. When the wind speed exceeds the preset safety threshold, the central control system will start the corresponding adjustment mechanism. The light intensity sensor can adjust the light transmittance of the membrane structure according to different lighting conditions. When the sunlight is strong, by controlling the dimming device inside the membrane structure, such as a liquid crystal dimming film or an electrochromic film, the amount of light entering the structure is reduced, the indoor temperature is reduced, and the energy consumption of refrigeration equipment such as air conditioners is reduced; when the light is insufficient, the light transmittance is increased, the natural lighting is fully utilized, and the lighting electricity is saved. The temperature sensor can not only be set on the outside of the membrane structure 2 to monitor the external environment temperature, but also be set on the membrane structure 2 to monitor the temperature inside the membrane structure. When the internal temperature is too high or too low, the central control system can adjust the inflation pressure of the air rib 3.1, change the shape of the membrane structure 2, and promote the circulation and heat exchange of the internal air. For example, in hot summer, the pressure of air rib 3.1 is appropriately reduced to make the membrane surface slightly concave, forming a natural ventilation channel and accelerating the discharge of hot air; in cold winter, the pressure of air rib 3.1 is increased to make the membrane surface tighter and reduce heat loss. Snow pressure sensors play a key role in snowy weather. Once the snow pressure is detected to reach a level that may affect the safety of the structure, the central control system will automatically start the snow removal device such as the membrane surface heating wire or the vibrating snow remover, and adjust the pressure of air rib 3.1 at the same time to enhance the bearing capacity of the structure and prevent excessive snow accumulation from causing the membrane surface to rupture or the frame to deform.

[0045] In this embodiment, the edges of the membrane structure and the parts where the force is concentrated, such as the connection parts between the corners of the membrane structure and the frame and the air rib structure, are reinforced by means of reinforcement belts, reinforcement ropes, etc. The reinforcement belt can be a polyester fiber belt or a carbon fiber belt, which is fixed to the membrane structure by sewing or gluing to enhance the local tensile strength of the membrane structure.

[0046] In this embodiment, the air rib membrane structure unit 3 is connected to the frame support structure 1 by binding; a binding belt 17 is preset on the air rib membrane structure unit 3 .

[0047] In this embodiment, the tension sensor 18 senses the tension of the membrane structure 2, and the electric tension regulator 8 first obtains the current tension information of the membrane material through the tension sensor 18; the tension sensor 18 is installed on the transmission path of the membrane structure 2 or near the connection point, and can sense the tension of the membrane material in real time. For example, the strain gauge tension sensor measures the tension according to the change in resistance caused by the strain generated by the tension of the membrane material. When the tension of the membrane material changes, the tension sensor 18 converts this physical quantity (such as resistance change) into an electrical signal. This electrical signal is usually a weak analog signal, and its size is in a certain proportional relationship with the actual tension of the membrane material. The weak electrical signal generated by the tension sensor 18 will be transmitted to the central control system connected to the electric tension regulator 8. During the transmission process, it may pass through a signal amplification circuit to enhance the signal strength and ensure that the signal can be accurately recognized by the control system. The central control system is generally composed of a microcontroller (such as a single-chip microcomputer), which performs analog-to-digital conversion (A / D conversion) on the incoming signal and converts the analog signal into a digital signal. Then, the microcontroller compares the current tension value represented by this digital signal with the preset target tension value. If the current tension value is not equal to the target tension value, the central control system will drive the motor in the electric tension regulator 8 according to the difference. When the current tension value is less than the target tension value, the motor will run, and the film material will be tightened through the transmission device (such as gears, belts or ball screws, etc.) in the electric tension regulator 8. For example, the motor drives a reel to rotate, and a connecting film is arranged inside the film material and at the tension regulator 8 corresponding to the middle position. The connecting film is rolled on the reel of the electric tension regulator 8. When the reel rotates, the film material will be tightened and the tension will be increased. The bottom edge of the membrane structure is rolled on the reel of the electric tension regulator 8 at the corresponding position. On the contrary, at the bottom of the membrane structure, when the current tension value is greater than the target tension value, the motor will run in the opposite direction to relax the film material, thereby reducing the tension. The speed and running time of the motor can be accurately controlled according to the size of the tension difference. For example, when the tension difference is large, the motor can run at a higher speed for a longer time to quickly adjust the tension; when the tension difference is small, the motor runs at a lower speed for a shorter time to achieve fine adjustment. During the process of adjusting the tension of the membrane material by the motor drive, the tension sensor 18 will continuously sense the tension change of the membrane material and feed back the new tension signal to the control system. In this way, the central control system can make dynamic adjustments based on the new tension information until the tension of the membrane material reaches the target setting value and remains stable. This feedback mechanism can ensure that the tension of the membrane material can still be maintained within the set range under the influence of various external factors (such as temperature changes, wind loads, etc.).

[0048] The construction method of the frame-based air-rib air membrane system includes the following steps.

[0049] Step 1: Design the air-ribbed air membrane system based on the frame construction drawing, process and manufacture it at the manufacturer, and transport it to the construction site.

[0050] Step 2: Install the columns 1.1.1.

[0051] Step 3: Install the longitudinal beams 1.2 on the tops of the longitudinally adjacent columns 1.1.1 respectively.

[0052] Step 4: Make the top support 1.1.2.

[0053] Step 5: Install the top support 1.1.2 on the top of the corresponding horizontal column 1.1.1.

[0054] Step 6: Connect the longitudinal beams 1.2 between the tops of the longitudinally adjacent top supports 1.1.2. When all the top supports 1.1.2 are connected, the construction of the frame support structure is completed.

[0055] The above embodiments are not exhaustive of specific implementation methods, and there may be other embodiments. The above embodiments are intended to illustrate the present invention rather than to limit the protection scope of the present invention. All applications derived from simple variations of the present invention fall within the protection scope of the present invention.

Claims

1. A frame-based air-rib air film system, characterized in that: The invention comprises a frame support structure (1), an air rib structure and a membrane structure (2); the frame support structure (1) comprises a support unit (1.1); the support unit (1.1) has a group and is arranged at intervals in the longitudinal direction; the support unit (1.1) comprises a column (1.1.1) and a top support (1.1.2); there are at least two columns (1.2) arranged at intervals in the transverse direction; the top support (1.1.2) is a triangular truss structure and is arranged on top of a group of columns (1.1.1) arranged in a corresponding manner in the transverse direction; longitudinal beams (1.2) are connected between longitudinally adjacent columns (1.1.1) and between longitudinally adjacent top supports (1.1.2); the air rib structure is installed on the outside of the frame support structure, and the air rib structure is composed of a plurality of air rib membrane structure units (3) spliced ​​together. ; Each air-rib membrane structure unit (3) is connected to the corresponding side of the frame support structure; the air-rib membrane structure unit (3) comprises air ribs (3.1) and connecting pipes (3.2); the air ribs (3.1) are arranged in parallel and spaced apart, and the air ribs (3.1) of a group are arranged horizontally; the connecting pipes (3.2) connect adjacent air ribs (3.1), and the air ribs (3.1) of a group are interconnected through the connecting pipes (3.2) to form one or more independent inflation circuits; a pressure sensor (4) is arranged on the surface of the air rib (3.1), and the pressure sensor (4) monitors the pressure change inside the air rib (3.1) in real time and transmits the data to the control system; the membrane structure (2) covers the outside of the air rib structure and is detachably connected to the air rib structure; Sensor groups (19) for sensing the external environment are installed at intervals on the surface of the membrane structure (2), and each sensor in the sensor group (19) is connected to a central control system respectively; the sensor group (19) collects external environment data in real time and transmits the data to the central control system; The air rib type membrane structure unit (3) is connected to an air pump (6) and an air release valve (7), and the air pump (6) and the air release valve (7) are connected to a central control system; the central control system calculates the required air rib pressure value based on data from the pressure sensor (4), and instructs the air pump (6) or the air release valve (7) to operate; An electric tension regulator (8) is installed at the connection position between the membrane structure (2) and the air rib structure, and tension sensors (18) are arranged at intervals on the membrane structure (2); the tension sensors (18) and the electric tension regulator (8) are respectively connected to a central control system; the electric tension regulator (8) adjusts the tension of the membrane structure so that the membrane surface maintains a uniform stress state.

2. The frame-based air-ribbed air membrane system according to claim 1, characterized in that: There are six air-rib membrane structure units (3), which are respectively arranged on the front side, rear side, left side, right side and top two slopes of the frame support structure (1); door openings (9) are left on the front air-rib membrane structure units (3) and the membrane structure (2); and doors are installed at the door openings (9).

3. The frame-based air-ribbed air membrane system according to claim 1, characterized in that: The top support (1.1.2) comprises a triangular outer frame (1.1.2a), a middle vertical support (1.1.2b) and a side vertical support (1.1.2c); the middle vertical support (1.1.2b) is arranged on the triangular outer frame ( 1.1.2a); there are two side vertical supports (1.1.2c), which are respectively arranged at the positions between the middle vertical support (1.1.2b) and the bottom corners on both sides of the triangular outer frame (1.1.2a); the upper end of the side vertical support (1.1.2c) is supported on the bottom of the diagonal rod on the corresponding side of the triangular outer frame (1.1.2a), and the lower end of the side vertical support (1.1.2c) is supported on the bottom rod of the triangular outer frame (1.1.2a); and a diagonal support (1.1.2d) is arranged between the bottom of the middle vertical support (1.1.2b) and the top of the side vertical support (1.1.2c).

4. The frame-based air-ribbed air membrane system according to claim 1, characterized in that: A longitudinal connecting rod (1.3) is arranged between the middle parts of longitudinally adjacent upright posts (1.1.1).

5. The frame-based air-ribbed air membrane system according to claim 1, characterized in that: The membrane structure (2) and the air rib structure are connected by a clamp (10), wherein the clamp (10) is an aluminum alloy clamp or a stainless steel clamp and is connected to the connecting pipe (3.2) of the air rib structure; a reinforcing rope or a reinforcing belt is provided at the edge of the membrane structure (2), and the reinforcing rope or the reinforcing belt is tied to the frame support structure (1) or the connecting pipe (3.2) of the air rib structure, thereby improving the tensile strength and tear resistance of the membrane structure.

6. The frame-based air-ribbed air membrane system according to claim 1, characterized in that: A frame structure fine-tuning device: an independent foundation (13) is provided at the bottom of the column (1.2); an electric fine-tuning jack (15) and a displacement sensor (14) are provided at intervals on the top of the independent foundation (13), and the displacement sensor (14) and the fine-tuning jack (15) are respectively connected to a central control system; a bottom plate (16) is provided at the bottom of the column (1.1.1), and the bottom plate (16) is installed on the top of a group of fine-tuning jacks (15); when the frame support structure (1) is subjected to lateral force or uneven settlement, the central control system instructs the fine-tuning jack (15) to work according to data fed back by the sensor, so as to fine-tune the frame support structure (1).

7. The frame-based air-ribbed air membrane system according to claim 1, characterized in that: The sensor group includes a wind speed sensor, a temperature sensor and a snow pressure sensor; the wind speed sensor, the temperature sensor and the snow pressure sensor are respectively connected to the central control system.

8. The frame-based air-ribbed air membrane system according to claim 1, characterized in that: The air-ribbed membrane structure unit (3) is connected to the frame support structure (1) by binding; a binding belt (17) is preset on the air-ribbed membrane structure unit (3).

9. A construction method of a frame-based air-ribbed air membrane system according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: According to the construction drawing design of the air-ribbed air membrane system based on the frame, it is processed and manufactured at the manufacturer and transported to the construction site; Step 2: Install the columns (1.1.1); Step 3: Install the longitudinal beams (1.2) on the tops of the longitudinally adjacent columns (1.1.1); Step 4: Make the top support (1.1.2); Step 5: Install the top support (1.1.2) on the top of the corresponding horizontal column (1.1.1); Step 6: Connect the longitudinal beams (1.2) between the tops of the longitudinally adjacent top supports (1.1.2), and when all the top supports (1.1.2) are connected, the construction of the frame support structure (1) is completed; Step 7: Install the air rib membrane structure units (3) one by one on the outside of the frame support structure (1); Step 8: After all air-ribbed membrane structure units (3) are installed, the construction of the entire air-ribbed membrane system is completed.

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