Wall purline connecting device and construction method

Abstract

The invention discloses a wall purline connecting device and a construction method, and belongs to the field of structural engineering. The device comprises a main beam, a moving part and a positioning mechanism, the moving parts and the purlines are fixedly connected through the connecting components to form a group of secondary beams, and the positioning mechanisms clamp the end parts of the purlines on the adjacent secondary beams and are used for keeping the relative stability of a plurality of preset mounting positions of the adjacent secondary beams and the main beam; the positioning mechanism forms temporary constraint on the moving part and the purline, and the constraint is relieved after the auxiliary beam and the main beam are installed; the main beam is provided with a positioning hole which is perpendicular to the purline direction and corresponds to the through hole in the moving piece, and the moving piece is in sliding fit with the positioning hole through a pre-tightening assembly. The pre-tightening force of the pre-tightening assembly is set to allow the moving part to slide relative to the main beam in the axial direction of the positioning hole and limit displacement of the moving part in the direction perpendicular to the sliding direction. Through the cooperation of the positioning mechanism and the moving part, the mounting precision of the wall surface purline is improved, and the complexity and difficulty of on-site construction of the purline are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of structural engineering, and in particular to a wall purlin connecting device and a construction method. BACKGROUND

[0002] In the field of building steel structures, light steel structure systems are widely used in industrial plants, warehouse facilities and large public buildings. Purlins, as key supporting components of roofs and walls, directly affect the stability, durability and construction efficiency of the overall structure. Traditional purlin connection methods mainly use bolt rigid fixation or welding. Although they can ensure the initial installation strength, they have many inherent defects: temperature stress accumulation problem, steel structure is significantly affected by environmental temperature changes, thermal expansion and cold contraction effect causes axial deformation of purlins; traditional rigid connection cannot release stress, long-term effect easily causes roof deformation, sealing failure, and even leads to enclosure cracking, increasing maintenance costs. Low installation efficiency, each purlin needs to be drilled, aligned and bolted, with an average time of 40-60 seconds per purlin, and two workers are required to work together. It is difficult to adjust later, when the plant function changes or the equipment is upgraded, the purlin position needs to be completely disassembled to adjust the purlin position, and the construction flexibility is poor.

[0003] Although there are improved schemes such as elastic connecting pieces and sliding supports in the prior art, there are still the following deficiencies: complex structure: large number of parts (≥7), high machining precision requirement, cost increase of more than 30%; weak wind vibration resistance: no self-locking mechanism, easy to slip and dislocate under typhoon or mechanical vibration; poor adaptability: cannot be compatible with different cross-section (C / Z) purlins, and the adjustment range is limited (±5mm). SUMMARY

[0004] The purpose of the present application is to provide a wall purlin connecting device and a construction method, which realizes the effects of fast wall purlin construction, self-adapting temperature deformation and anti-sliding performance, to improve the construction efficiency, durability and life cycle economy of steel structure plants.

[0005] To achieve the above purpose, the present application adopts the following technical scheme: A wall purlin connecting device, comprising a main beam, a moving piece, and a positioning mechanism; the moving piece and the purlin are fixedly connected through a connecting member to form a group of secondary beams, the positioning mechanism clamps the end of the purlin on the adjacent secondary beam, and is used to keep the relative stability of the adjacent secondary beams and the multiple preset installation positions of the main beam; the positioning mechanism temporarily restricts the moving piece and the purlin, and releases the restriction after the secondary beam and the main beam are installed; The main beam is provided with a positioning hole that is perpendicular to the purlin direction and corresponds to the through hole on the moving part. The moving part forms a sliding fit with the positioning hole through a pre-tightening assembly. The pre-tightening force of the pre-tightening assembly is set to allow the moving part to slide relative to the main beam along the axial direction of the positioning hole, and to limit the displacement of the moving part in the direction perpendicular to the sliding direction.

[0006] As a further improvement of the present invention, the positioning mechanism includes a clamping arm and a horizontal plate. The length of the horizontal plate is equal to the interval between adjacent purlins. The horizontal plate and the clamping arm are connected by threads. The top and bottom of the moving part are provided with ear plates. The clamping arm and the ear plates of the moving part are fixedly connected by positioning pins.

[0007] As a further improvement of the present invention, the inner wall of the positioning hole is provided with a wear-resistant layer.

[0008] As a further improvement of the present invention, the ear plate of the movable member is provided with staggered protrusions on the surface facing the purlin direction.

[0009] As a further improvement of the present invention, the pre-tightening assembly includes a bolt and an anti-loosening spring, the moving part is connected to the main beam by bolts, and the anti-loosening spring is installed in an annular groove provided in the head of the bolt.

[0010] Correspondingly, a wall purlin connection construction method is implemented by the wall purlin connection device described above; The construction method includes the following steps: A. Select purlins that match the pre-installed dimensions on the wall, and use connecting components to fix the movable parts to the purlins to form a set of secondary beams; B. The purlins on adjacent sub-beams are clamped together by a positioning mechanism to form a purlin assembly; C. Hoist the purlin assembly to the preset installation height of the main beam; D. Using tools, the moving part and the multiple pre-set positioning holes on the main beam are made to slide together under the action of the pre-tightening assembly; E. After the secondary beam and main beam are installed, release the constraints of the positioning mechanism.

[0011] As a further improvement of the present invention, the threaded portion of the pre-tightening component connected to the positioning hole in step D is pre-coated with graphite lubricant.

[0012] As a further improvement of the present invention, after step E is completed, the bolts used to connect the sub-beam and the main beam are tightened to 30-40 Nm.

[0013] The beneficial effects achieved by this invention are as follows: 1. The wall purlin connection device and construction method of the present invention fixes the moving part to the purlin, converting the deformation and slippage of the purlin caused by the influence of the steel structure into free sliding of the moving part in the positioning hole of the main beam. This allows the purlin to adapt to thermal contraction and deformation within a certain range, while limiting the displacement of the purlin in the direction perpendicular to the axial direction. Under the temporary constraint of the positioning mechanism on multiple purlins, the installation is carried out, achieving the effects of fast construction of wall purlins, adaptive temperature deformation, and anti-slip performance, thereby improving the construction efficiency, durability and economic efficiency of steel structure workshops throughout their entire life cycle.

[0014] 2. The wall purlin connection device and construction method of the present invention temporarily constrains the ends of multiple purlins before hoisting them by means of a positioning mechanism, which can effectively improve safety, prevent purlins from slipping or falling due to collisions, or reduce the risk of equipment overload, and reduce the difficulty of operation; at the same time, it can improve efficiency, reduce hoisting adjustment and subsequent tidying time, and complete the transfer of multiple purlins in one hoisting, reducing the number of hoistings and adjustment time, and achieving accurate and fast positioning; it can also protect the quality of the purlins, avoid deformation, damage and accuracy deviation caused by collisions, and ensure subsequent performance.

[0015] 3. The wall purlin connection device and construction method of the present invention adjusts the alignment between two purlins by adjusting the end plates of two positioning mechanisms, ensuring that the through holes of the moving parts after hoisting correspond one-to-one with the preset installation holes on the main beam of the steel structure, thereby improving the installation accuracy of the wall purlins, reducing the installation difficulty and installation time, and significantly improving the on-site construction efficiency of purlins. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a wall purlin connection device according to the present invention.

[0017] The meanings of the markings in the attached diagram are as follows: 1. Main beam; 2. Purlin; 3. Moving parts; 4. Anti-loosening snap ring; 5. Positioning hole; 6. Positioning mechanism; 61. Horizontal plate; 62. Clamping arm. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] Example 1: like Figure 1As shown, a wall purlin connection device includes a main beam 1, a movable component 3, and a positioning mechanism 6. The movable component 3 and the purlin 2 are fixedly connected by connecting members to form a set of secondary beams. The positioning mechanism 6 clamps the ends of the purlin 2 on adjacent secondary beams to maintain the relative stability of multiple preset installation positions of adjacent secondary beams and the main beam 1. The positioning mechanism 6 forms a temporary constraint on the movable component 3 and the purlin 2, which is released after the secondary beams and the main beam 1 are installed. The main beam 1 is provided with a positioning hole 5 along the direction perpendicular to the purlin 2 and corresponding to the through hole on the movable component. The movable component 3 forms a sliding fit with the positioning hole 5 through a pre-tightening component. The pre-tightening force of the pre-tightening component is set to allow the movable component 3 to slide relative to the main beam 1 along the axial direction of the positioning hole 5, and to restrict the displacement of the movable component 3 in the direction perpendicular to the sliding direction. Before hoisting, the gaps between the purlins 2 at different heights relative to the main beam are pre-arranged on the ground according to the construction requirements. The moving part 3 and the purlins 2 are fixedly connected to each other using common connecting components such as angle steel to form a secondary beam. Multiple purlins 2 of different lengths can be spliced ​​together and fixedly connected to the moving part 3 to form a secondary beam of the required length for construction. Under the action of the positioning mechanism, two adjacent secondary beams with a preset distance are clamped. After hoisting and clamping, multiple secondary beams can be quickly installed by a single person in a single operation. At the same time, the pre-tightening component's partial locking of the moving part 3 and the main beam 1 allows the deformation of the purlins 2 to be converted into free sliding of the moving part 3 within the positioning hole 5, ensuring the long-term load after the installation of the purlins 2 and the main beam 1, and improving the economic efficiency of the entire life cycle of the device.

[0020] The positioning mechanism 6 includes a clamping arm 62 and a horizontal plate 61. The length of the horizontal plate 61 corresponds to the interval between adjacent purlins 2. The horizontal plate 61 and the clamping arm 62 are connected by threads. The top and bottom of the moving part 3 are provided with ear plates. The clamping arm 62 and the ear plates of the moving part 3 are fixedly connected by positioning pins. Different sizes of horizontal plates 61 can be freely selected according to the preset installation interval of the purlins. The wide surface of the horizontal plate 61 ensures that the ends of multiple purlins 2 are aligned. Under the action of the end plates 61 at both ends, a double constraint can be formed on both ends of the purlins 2, improving the accuracy of the purlins 2 in the installation position and the structural strength of the entire assembly after being lifted.

[0021] The inner wall of the positioning hole 5 is provided with a wear-resistant layer. This ensures that long-term sliding of the moving part 3 will not reduce the lifespan of the main beam 1, and extends the service life of the moving part 3, thereby improving system reliability.

[0022] The lugs of the movable member 3 have staggered protrusions on their surface facing the purlin 2. The purlin 2 is restricted in its displacement in the vertical direction of the axial direction by the lugs of the movable member 3, and the displacement constraint in the vertical direction of the axial direction is strengthened by the protrusions of the movable member 3. At the same time, the stress of the purlin 2 after deformation is dispersed, which can ensure sufficient constraint force and prevent the purlin 2 from deforming due to excessive local stress, thus balancing the needs of "constraint strength" and "purlin protection".

[0023] The pre-tightening assembly includes bolts and anti-loosening springs 4. The movable component 3 is connected to the main beam 1 by bolts, and the anti-loosening spring 4 is installed in the annular groove on the bolt head. By setting the anti-loosening spring 4 in the positioning hole 5, the pre-tightening force of the movable component 3 is enhanced, resisting external interference such as vibration and impact, ensuring that the bolts installed on the movable component 3 and the main beam 1 can adapt to slight deformation under dynamic working conditions, achieving long-term and reliable locking of the movable component, and improving the safety and durability of the mechanical structure. Under the load requirements of the wall purlin 2 construction, purlins 2 of different lengths and sizes can be selected and fixedly connected to the movable component 3 to form a secondary beam, reserving the positions of multiple main beams 1 required for the construction of the wall. The movable component 3 is directly connected to the main beam 1 by bolts. The beginning and end of multiple purlins 2 are fixedly connected to the main beam 1 using common connecting components such as angle steel, avoiding the situation where the connection between the main beam 1 and the movable component 3 needs to pass through or skip the purlins 2, increasing the overall structure's adaptability to deformable purlins 2. Example

[0024] The wall purlin connection device in this embodiment is a further improvement on the first embodiment. Specifically, the positioning mechanism has at least two horizontal plates 61. The normal spacing between purlins 2 is approximately 1.5 meters, with varying installation gaps at different heights. In most cases, the gap between purlins installed from bottom to top gradually decreases. Correspondingly, the number of horizontal plates 61 in the positioning mechanism 6 can be freely expanded. When the spacing between two purlins 2 is only a few tens of centimeters, based on the average adult height of 1.7 meters, the positioning mechanism 6 can have three horizontal plates 61 and four clamping arms 62. Before hoisting, the four purlins 2 are arranged according to the preset gap, and the moving parts 3 are respectively connected to... The four purlins 2 are fixedly connected and then double-aligned by the horizontal plates 61 at both ends. They are then fixed by the positioning pins on the clamping arms 62 and the ear plates of the moving parts 3, forming a purlin 2 assembly. This allows a single person to install all four purlins 2 at once, significantly improving installation efficiency (more than 20 times higher than traditional methods) and greatly shortening the construction cycle. At the same time, it reduces labor intensity, reduces the risk of occupational injuries and diseases, and single-person operation reduces manpower requirements, thus reducing labor and management costs. Furthermore, standardized operation ensures installation accuracy and fixing reliability, reducing potential maintenance risks in the later stages. It is especially suitable for complex environments and emergency projects, achieving multiple advantages such as cost reduction, speed increase, and safety assurance.

[0025] Working principle: First, in the ground pre-assembly stage, the required dimensions and quantity of purlins 2 are checked according to the wall purlin 2 installation and laying drawings at the construction site. Multiple purlins 2 are pre-arranged on the ground at predetermined intervals. Angle steel is used to fix the movable parts 3, which are of the same type as the purlins 2, to the purlins 2. Then, according to the preset installation gap between the wall purlins 2, a matching horizontal plate 61 is selected. The horizontal plate 61 is used to align the two ends of the purlins 2 multiple times. A clamp arm 62 matching the single lifting load is selected and fixedly connected to the horizontal plate 61. Finally, the movable parts 3 are fixedly connected to the horizontal plate 61 using positioning pins. The moving part 3 is fixedly connected to the clamping arm 62; then, during the high-altitude installation stage, the purlin 2 assembly is hoisted to the designed position of the main beam 1. While the workers align the pre-drilled through holes on the moving part 3 with the positioning holes 5 on the main beam, they use an impact electric wrench to drive the bolts into the through holes and positioning holes 5. They use snap ring pliers to press the anti-loosening snap ring 4 into the annular groove on the bolt. After confirming that all the through holes of the moving parts 3 are installed in accordance with the positioning holes 5 on the main beam 1, the clamping arm 62 and the cross plate 61 are released from their constraints on the purlin 2 and the moving part 3, and the single construction is completed. Example

[0026] The wall purlin connection construction method in this embodiment is implemented by the devices in Embodiment 1 and Embodiment 2, and the specific steps are as follows: A. Select purlin 2 that matches the pre-installed dimensions on the wall, and fix the movable part 3 to purlin 2 through connecting components to form a set of secondary beams; B. The purlin 2 assemblies are formed by clamping the ends of the purlins 2 on the adjacent sub-beams through the positioning mechanism 6. The size of the positioning mechanism 6 can be freely selected according to the installation and layout requirements of the purlins 2. Angle steel is used to fix and connect the two purlins 2 to two movable parts 3 of similar size on the web of each purlin 2 to form the purlin 2 assemblies.

[0027] C. Hoist the purlin 2 assembly to the preset installation height of the main beam 1; install the purlin 2 assembly one by one according to the multiple preset installation heights of the main beam 1.

[0028] D. Using tools, the movable part 3 and the multiple pre-set positioning holes 5 on the main beam 1 are made to slide into a fit under the action of the pre-tightening component; before lifting, the movable part 3 is set to correspond one by one with the positions of the pre-set positioning holes 5 on the main beam 1. After lifting a set of purlin 2 assemblies, multiple purlins 2 can be installed by a single person at a time. The bolts are pre-tightened by an impact electric wrench, achieving an average installation speed of 3 seconds per purlin per person, which is 20 times more efficient than the traditional method. Moreover, no special tools are required, which significantly reduces the construction cost of steel structure factory buildings.

[0029] E. After the secondary beam and main beam 1 are installed, the constraints of the positioning mechanism 6 are released. The temporary constraints of the positioning mechanism 6 reduce the installation difficulty of the purlin 2, reduce the types of connecting accessories used, and increase the adaptability of purlins 2 with different cross-sections.

[0030] In step D, the threaded portion connecting the pre-tightening assembly to the positioning hole is pre-coated with graphite lubricant. Utilizing the lubricating properties of graphite, the device ensures long-term lubrication of the moving part 3 under extreme environments such as high temperature, heavy load, and dust, while also providing friction reduction, wear resistance, and protection.

[0031] After step E is completed, tighten all bolts used to connect the main beam and the sub-beam to 30-40 Nm. After installation, balance the preload strength of the bolts on the moving parts by pressing the anti-loosening spring 4 into the annular groove on the bolt until the jaw pressure gauge shows 50±5 N. This ensures the safety of the connection between the moving part 3 and the main beam 1, resisting wind vibration under static friction and ensuring that the moving part 3 can overcome friction and slide when the temperature stress exceeds the threshold.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A wall purlin connection device, characterized in that, It includes a main beam (1), a moving part (3), and a positioning mechanism (6); the moving part (3) and the purlin (2) are fixedly connected by connecting members to form a set of secondary beams, and the positioning mechanism (6) clamps the ends of the purlins (2) on the adjacent secondary beams to maintain the relative stability of the secondary beams and the main beam (1) at multiple preset installation positions; The positioning mechanism (6) forms a temporary constraint on the moving part (3) and the purlin (2), and the constraint is released after the sub-beam and the main beam (1) are installed. The main beam (1) is provided with a positioning hole (5) that is perpendicular to the purlin (2) and corresponds to the through hole on the moving part (3). The moving part (3) forms a sliding fit with the positioning hole (5) through a pre-tightening assembly. The pre-tightening force of the pre-tightening assembly is set to allow the moving part (3) to slide relative to the main beam (1) along the axial direction of the positioning hole (5) and to restrict the displacement of the moving part (3) in the direction perpendicular to the sliding direction.

2. The wall purlin connecting device according to claim 1, characterized in that: The positioning mechanism (6) includes a clamping arm (62) and a horizontal plate (61). The length of the horizontal plate (61) is equal to the interval between adjacent purlins (2). The horizontal plate (61) and the clamping arm (62) are connected by threads. The top and bottom of the moving part (3) are provided with ear plates. The clamping arm (62) and the ear plates of the moving part (3) are fixedly connected by positioning pins.

3. The wall purlin connecting device according to claim 1, characterized in that: The inner wall of the positioning hole (5) is provided with a wear-resistant layer.

4. The wall purlin connecting device according to claim 1, characterized in that: The ear plate of the moving part (3) has staggered protrusions on the surface facing the purlin (2).

5. The wall purlin connecting device according to claim 1, characterized in that: The pre-tightening assembly includes a bolt and a locking spring (4). The moving part (3) is connected to the main beam (1) by bolts, and the locking spring (4) is installed in the annular groove provided on the head of the bolt.

6. A method for connecting wall purlins, characterized in that: This construction method is achieved by the wall purlin connection device as described in claim 1; The construction method includes the following steps: A. Select purlins (2) that are consistent with the pre-installed dimensions of the wall surface, and fix the movable part (3) to the purlins (2) through connecting components to form a set of secondary beams; B. The ends of the purlins (2) on the adjacent sub-beams are clamped by the positioning mechanism (6) to form a purlin (2) assembly; C. Hoist the purlin (2) assembly to the preset installation height of the main beam (1); D. Using tools, the moving part (3) and the multiple positioning holes (5) on the main beam (1) are made to slide together under the action of the pre-tightening assembly. E. After the sub-beam and main beam (1) are installed, release the constraint of the positioning mechanism (6).

7. The wall purlin connection construction method according to claim 6, characterized in that: In step D, the threaded portion of the pre-tightening component connected to the positioning hole is pre-coated with graphite lubricant.

8. The wall purlin connection construction method according to claim 6, characterized in that: After step E is completed, tighten the bolts used to connect the sub-beam and the main beam to 30-40 Nm.

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