Basement large-span post-cast strip independent supporting device

Abstract

The utility model discloses a basement large-span post-cast strip independent supporting device which comprises at least two pairs of vertical rod assemblies, a plurality of horizontal cross rods are connected between every two adjacent vertical rod assemblies, inclined rods are connected between every two vertically adjacent cross rods, and height-adjustable base assemblies are arranged at the bottoms of the vertical rod assemblies. A height-adjustable post-cast strip supporting assembly is arranged at the top of the vertical rod assembly; the vertical rod assembly comprises a connecting sleeve and a plurality of vertical rod units connected through the connecting sleeve, each vertical rod unit is composed of a hollow round rod and a horizontal flange plate coaxially fixed to the middle of the round rod, and a plurality of through bolt holes are evenly formed in the flange plate around the disc face. Through bolt holes are formed in the side walls of the upper ends and the lower ends of the round rods and the connecting sleeves. The device can be quickly disassembled, and the construction risk and the structural damage are reduced; the supporting system can reduce interference to a main body structure, modular components are adopted, accurate adjustment of parameters can be achieved, and meanwhile the overall stability of the system can be effectively improved through inclined rod supporting.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building engineering equipment, concretely to a basement large -span post -poured band independent support device. BACKGROUND

[0002] In modern building engineering, especially in large underground structure, post-poured band as an important component connecting main structure, its construction quality is directly related to the overall stability and safety of structure. Post-poured band is mainly used to solve the problem of concrete shrinkage and deformation, reduce concrete cracking and ensure the integrity of structure. In the process of basement construction, especially in large-span structure, the setting of post-poured band and the design of support system directly affect the engineering quality and construction safety.

[0003] The traditional post-poured band support system generally adopts the mode of integral cooperation with the main structure or formwork, which has the following disadvantages: 1. Strong dependence: the traditional support is attached to the main structure or formwork, which is easily affected by construction deformation, formwork vibration and other factors, and it is difficult to ensure the independence and stability of the support. This dependence is particularly evident during concrete vibration, as monitoring data shows that the strain fluctuation range of the support system during concrete vibration is-53.00με to +22.05με; 2. Limited adjustment capacity: in large-span construction, post-poured band often has the problem of uneven local stress and large displacement error, and the traditional support system is difficult to achieve accurate adjustment. In actual construction, the maximum displacement value of post-poured band on both sides is usually 0.5-1.0mm, and the traditional support system is difficult to effectively control such small deformation; 3. Complicated installation and removal: the assembly and removal process of the traditional system is complex, which not only prolongs the construction period, but also increases the construction safety hazards; 4. Low standardization: the existing support system is mostly customized for projects, lacks standardized design, and is difficult to be used in different projects, which increases the engineering cost.

[0004] Therefore, there is an urgent need for a support device that can independently bear the load of post-poured band, adjust flexibly and install and remove simply to meet the requirements of large-span basement post-poured band construction. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a basement large-span post-poured band independent support device to solve the problems in the above background technology.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The basement large-span post-cast strip independent support device comprises not less than two pairs of vertical stand rod assemblies, a plurality of horizontal cross bars are connected between adjacent stand rod assemblies, and inclined rods are connected between adjacent cross bars in the up and down direction, the bottom of the stand rod assembly is provided with a height-adjustable base assembly, and the top of the stand rod assembly is provided with a height-adjustable post-cast strip support assembly; the stand rod assembly comprises a plurality of stand rod units connected through a connecting sleeve, the stand rod unit is composed of a hollow round rod and a horizontal flange plate coaxially fixed in the middle of the round rod, a plurality of penetrating bolt holes are uniformly arranged on the circumferential surface of the flange plate, and penetrating bolt holes are arranged on the side walls of the upper and lower ends of the round rod and the connecting sleeve; when connected, the adjacent round rods in the up and down direction are inserted into the same connecting sleeve and are fixed to each other through bolts.

[0008] In further embodiments, horizontal grooves matched with the flange plates are arranged at the two ends of the cross bar, vertical bolt holes penetrating the top and bottom are arranged on the grooves, and when connected, the flange plates are embedded in the grooves of the cross bar and are fixed to each other through bolts.

[0009] In further embodiments, a plurality of horizontal penetrating bolt holes are arranged on the side walls of the two ends of the cross bar, the two ends of the inclined rod are provided with connecting protrusions, and penetrating bolt holes are arranged on the connecting protrusions; when connected, the inclined rod is bolt-connected to the adjacent cross bars in the up and down direction through the connecting protrusions at the two ends.

[0010] In further embodiments, the base assembly comprises a horizontal bottom plate, a vertical bottom screw rod is fixed to the top surface of the bottom plate, a limiting nut is threadedly connected to the bottom screw rod, and an anti-skid rubber layer is attached to the bottom surface of the bottom plate; when connected, the bottom screw rod is inserted into the round rod, and the round rod can vertically slide on the bottom screw rod.

[0011] In further embodiments, the post-cast strip support assembly comprises an internally-threaded sleeve, a top screw rod is threadedly connected in the internally-threaded sleeve, the top end of the top screw rod protrudes from the internally-threaded sleeve and is rotationally connected with a horizontal post-cast strip support plate, the post-cast strip support plate is provided with reinforcing ribs on the top and bottom surfaces, and a rotating handle is fixed to the side wall of the top end of the top screw rod; a horizontal penetrating bolt hole is arranged at the other end of the internally-threaded sleeve, and when connected, the bottom end of the internally-threaded sleeve is inserted into the connecting sleeve and is fixed through a bolt.

[0012] Compared with the prior art, the basement large-span post-cast strip independent support device has the following beneficial effects:

[0013] This utility model adopts a modular design, with all components standardized and modularized, allowing for flexible combination according to different engineering needs, thus improving the system's versatility. The modular design enables the system to be quickly dismantled after the concrete reaches its design strength, shortening the construction period and reducing construction risks and secondary damage to the structure that may result from long-term support. The support system is relatively independent from the main structure and formwork, and can independently bear the load of the post-pouring strip during construction, reducing interference with the main structure. The use of modular components such as base components, upright components, horizontal bars, and diagonal bars allows for precise adjustment of parameters such as height and spacing, meeting the requirements of large-span construction. At the same time, the diagonal bracing can also effectively improve the overall stability of the system, distribute and balance the load, and ensure optimal support effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the connection relationship between the horizontal bar, diagonal bar, and round bar of this utility model;

[0016] Figure 3 This is a schematic diagram of the post-cast strip support assembly structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the base assembly structure of this utility model.

[0018] In the diagram: 1. Horizontal bar; 2. Diagonal bar; 3. Connecting sleeve; 4. Round bar; 5. Flange; 6. Groove; 7. Connecting protrusion; 8. Base plate; 9. Bottom screw; 10. Limit nut; 11. Internal threaded sleeve; 12. Top screw; 13. Post-cast strip support plate; 14. Reinforcing rib; 15. Rotating handle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Implementation, for example Figures 1-4 As shown, this embodiment provides an independent support device for a large-span post-pouring strip in a basement, including no less than two pairs of vertical pole assemblies, several horizontal bars 1 connected between adjacent pole assemblies, diagonal bars 2 connected between adjacent horizontal bars 1, a height-adjustable base assembly at the bottom of the pole assembly, and a height-adjustable post-pouring strip support assembly at the top of the pole assembly.

[0021] Wherein, the vertical rod assembly includes several vertical rod units connected by the connecting sleeve 3, and the vertical rod unit is composed of a hollow round rod 4 and a horizontal flange plate 5 coaxially fixed in the middle of the round rod 4. A plurality of through bolt holes are uniformly arranged on the flange plate 5 around the disc surface, and the through bolt holes are arranged on the side walls of the upper and lower ends of the round rod 4 and the connecting sleeve 3. When connected, the adjacent round rods 4 are inserted into the same connecting sleeve 3 and fixed by bolts. In this embodiment, the round rod 4 is made of a cold-rolled steel pipe with a diameter of 48-60mm and a wall thickness of 3-4mm, and the surface is treated for corrosion prevention. The length of the round rod 4 is divided into three specifications of 500mm, 1000mm and 1500mm, and the connecting sleeve 3 can realize arbitrary length combination.

[0022] Wherein, the horizontal rod 1 is provided with a horizontal groove 6 matched with the flange plate 5 at both ends, and a vertical bolt hole penetrating the top and bottom is arranged on the groove 6; when connected, the flange plate 5 is embedded in the groove 6 of the horizontal rod 1 and fixed by bolts. In this embodiment, the horizontal rod 1 is made of a cold-rolled steel pipe with a diameter of 42-48mm and a wall thickness of 2.5-3.5mm, and the length of the horizontal rod has three specifications of 600mm, 900mm and 1200mm.

[0023] Wherein, a plurality of horizontal through bolt holes are arranged on the side walls of the two ends of the horizontal rod 1, and the connecting protrusions 7 are arranged at both ends of the inclined rod 2, and the connecting protrusions 7 are provided with through bolt holes; when connected, the inclined rod 2 is connected with the adjacent horizontal rods 1 above and below by the connecting protrusions 7 at both ends. In this embodiment, the inclined rod 2 is made of a steel pipe with a diameter of 38-42mm, and the angle adjustment between the inclined rod 2 and the adjacent horizontal rods 1 above and below can be ±30°.

[0024] Wherein, the base assembly includes a horizontal bottom plate 8, and a vertical bottom screw 9 is fixed on the top surface of the bottom plate 8. A limiting nut 10 is threadedly connected on the bottom screw 9, and a non-slip rubber layer is pasted on the bottom surface of the bottom plate 8; when connected, the bottom screw 9 is inserted into the round rod 4, and the round rod 4 can vertically slide on the bottom screw 9. In this embodiment, the bottom plate 8 is made of a steel plate with a diameter of 150-200mm and a thickness of 8-12mm, the bottom screw 9 is made of a high-strength threaded steel with a diameter of 30-40mm, the pitch is 3-5mm, and the limiting nut 10 can have two, which are the main nut and the safety nut.

[0025] The post-cast strip support assembly comprises an inner threaded sleeve 11, a top screw 12 is threadedly connected in the inner threaded sleeve 11, the top end of the top screw 12 is higher than the inner threaded sleeve 11 and is rotatably connected with a horizontal post-cast strip support plate 13, the post-cast strip support plate 13 is provided with a reinforcing rib 14 at the top and the bottom, and a rotating handle 15 is fixed on the top end side wall of the top screw 12; a horizontal through bolt hole is formed in the other end of the inner threaded sleeve 11, and when connected, the bottom end of the inner threaded sleeve 11 is inserted into the connecting sleeve 3 and is fixed by a bolt. In the embodiment, the post-cast strip support assembly has a height fine adjustment function of ±25 mm, the top screw 12 is designed with a fine thread, and 1 mm of accurate adjustment can be realized by one rotation, the post-cast strip support plate 13 is made of a multi-layer plate with a thickness of 15-20 mm, and the surface is covered with a 1 mm thick steel plate, and the size of the post-cast strip support plate 13 is 300 mm*600 mm.

[0026] In use, first, no less than two pairs of base assemblies are placed at predetermined support points, the lowermost round rod 4 is sleeved on the bottom screw 9 on the base assembly, then the first layer of horizontal rods 1 is installed, then the second layer of round rods 4 is installed through the connecting sleeve 3, then the second layer of horizontal rods 1 is installed, thereby forming a horizontal and vertical support grid layer by layer, the inclined rods 2 are installed between the upper and lower adjacent horizontal rods 1 to enhance the overall stability, the inner threaded sleeve 11 in the post-cast strip support assembly is installed on the connecting sleeve 3 at the top, finally, the supporting plate is placed below the horizontal rod 1 at the bottom, the two ends of the supporting plate are respectively connected with the jacks, the jacks are used to lift the supporting plate together with the whole frame, when lifted to a certain height, the upper rotation limiting nut 10 fixes the height of the whole frame, then the supporting plate and the jacks are removed. Finally, the rotating handle 15 in the post-cast strip support assembly is rotated to fine adjust the height of the top of the top screw 12, and then fine adjust the height of the post-cast strip support plate 13. When disassembled, the reverse operation of the above steps can be performed.

[0027] In addition, the load capacity of the jack is 50-100 kN, the stroke is 0-50 mm, a pressure sensor can be installed in the jack, the range of the pressure sensor is 0-100 kN, the accuracy is ±0.5% F.S, the pressure sensor comprises a data acquisition unit, a control terminal and an automatic adjusting execution mechanism; the data acquisition unit comprises a microprocessor, a data storage module and a communication module; the control terminal is used for displaying monitoring data, analyzing the state of the support system, issuing early warning and control instructions; the automatic adjusting execution mechanism is integrated with the jack support system, and the support height is automatically adjusted according to the monitoring data and the control instructions.

[0028] The embodiments of the utility model have been shown and described, for those skilled in the art, can understand that these embodiments can be changed, modified, replaced and changed in many ways without departing from the principles and spirits of the utility model, the range of the utility model is defined by the appended claims and its equivalents.

Claims

1. An independent support device for large-span post-cast strips in basements, characterized in that: It includes no less than two pairs of vertical pole assemblies, with several horizontal crossbars (1) connecting adjacent pole assemblies, and diagonal bars (2) connecting adjacent horizontal crossbars (1) at the top and bottom. The pole assembly is provided with a height-adjustable base assembly at the bottom and a height-adjustable post-pouring strip support assembly at the top. The pole assembly includes a number of pole units connected by a connecting sleeve (3). Each pole unit consists of a hollow round rod (4) and a horizontal flange (5) coaxially fixed in the middle of the round rod (4). The flange (5) has a number of through bolt holes evenly distributed around its surface. The round rod (4) and the side walls at both ends of the connecting sleeve (3) also have through bolt holes. When connected, adjacent round rods (4) are inserted into the same connecting sleeve (3) and fixed to each other with bolts.

2. The independent support device for large-span post-cast strips in basements according to claim 1, characterized in that: Both ends of the crossbar (1) are provided with horizontal grooves (6) that match the flange (5). Vertical bolt holes that penetrate the top and bottom are provided on the grooves (6). When connecting, the flanges (5) are embedded in the grooves (6) and then fixed to each other with bolts.

3. The independent support device for large-span post-cast strips in basements according to claim 2, characterized in that: The horizontal bar (1) has several horizontal through bolt holes on its two side walls. The diagonal bar (2) has connecting protrusions (7) at both ends, and the connecting protrusions (7) have through bolt holes. When connected, the diagonal bar (2) is bolted to the adjacent horizontal bar (1) at the top and bottom through the connecting protrusions (7) at both ends.

4. The independent support device for large-span post-cast strips in basements according to claim 1, characterized in that: The base assembly includes a horizontal base plate (8), a vertical bottom screw (9) is fixed on the top surface of the base plate (8), a limit nut (10) is threaded onto the bottom screw (9), and an anti-slip rubber layer is pasted on the bottom surface of the base plate (8); when connected, the bottom screw (9) is inserted into the round rod (4), and the round rod (4) can slide vertically on the bottom screw (9).

5. The independent support device for large-span post-cast strips in basements according to claim 1, characterized in that: The post-cast strip support assembly includes an internally threaded sleeve (11), in which a top screw (12) is threadedly connected. The top of the top screw (12) extends above the internally threaded sleeve (11) and is rotatably connected to a horizontal post-cast strip support plate (13). The top and bottom of the post-cast strip support plate (13) are provided with reinforcing ribs (14). A rotating handle (15) is fixed on the side wall of the top of the top of the top screw (12). The other end of the internally threaded sleeve (11) has a horizontal through bolt hole. When connecting, the bottom end of the internally threaded sleeve (11) is inserted into the connecting sleeve (3) and fixed by bolts.

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