A wind resistant system for a monolithic steel platform climbing formwork

Abstract

The application discloses a wind resistance system for a whole steel platform climbing formwork, which comprises at least one set of damping mechanisms supported on each face outer wall of a building structure and connected to the whole steel platform climbing formwork, each set of the damping mechanisms sequentially comprises a wall guide roller supported on the corresponding face outer wall of the building structure in sliding contact, a viscous damper with a force sensor and a limiting support, and the limiting support is fixedly arranged on the whole steel platform climbing formwork. The application can prevent the whole steel platform climbing formwork from being separated from the building structure under the action of wind load, avoid the safety hidden danger of overturning risk, and increase the safety and adaptability of the whole steel platform climbing formwork of the super high-rise building in the wind environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a wind-resistant system for a whole steel platform climbing formwork. BACKGROUND

[0002] In super high-rise buildings, a whole steel platform climbing formwork is usually used as a construction platform. With the continuous increase of building height, the influence of wind load on super high-rise buildings also increases. In the high-altitude working environment, the whole steel platform climbing formwork (hereinafter referred to as formwork) greatly improves the safety of construction compared with the traditional landing type scaffold. The wind load is the main lateral load borne by the formwork during construction. When the wind blows towards the formwork, it will bypass the edges, corners or pass through the holes, gaps between the outer surface of the formwork and the building structure, and make the formwork separate from the building structure in the wind direction, one side forming an unstable vortex, and the vortex periodically shedding to form a wake, resulting in a decrease in static pressure and forming a local low pressure area. On the other side, due to the dynamic effect of wind load, the acceleration of airflow, the movement of airflow separation point and other dynamic processes will produce a strong instantaneous negative pressure area. When the inner surface of the formwork is located at or close to this instantaneous negative pressure area, the inner surface will bear negative pressure. The negative pressure on the inner surface of the formwork is related to multiple factors. The smaller the opening rate of the building structure, the greater the negative pressure on the inner surface of the formwork. According to the opening condition of the formwork and the wind shielding effect, and further considering the influence of the wind permeability of the porous structure of the formwork on the wind load, the negative pressure on the inner surface is more uncontrollable compared with the solid plate. In the case that the negative pressure exceeds the threshold value, since the direction of the negative pressure acting on the inner surface of the formwork and the positive pressure on the windward surface both tend to push the formwork away from the building structure, the overturning moment of the formwork as a whole increases, resulting in that the structural safety of the formwork is difficult to meet the construction needs. SUMMARY

[0003] The purpose of the present application is to provide a wind-resistant system for a whole steel platform climbing formwork to solve the problem of safety hazard of the formwork separating from the building structure under the action of wind load in the high-altitude environment.

[0004] In order to solve the above technical problems, the technical scheme provided by the present application is as follows: a wind-resistant system for a whole steel platform climbing formwork, comprising at least one set of damping mechanism supported on each face outer wall of a building structure and connected to the whole steel platform climbing formwork, each set of damping mechanism comprising in sequence an attached wall guide roller slidingly contacting and supported on the corresponding face outer wall of the building structure, a viscous damper with a force sensor, and a limiting support fixedly arranged on the whole steel platform climbing formwork.

[0005] Further, the wind-resistant system for a whole steel platform climbing formwork provided by the present application, each set of damping mechanism is longitudinally uniformly spaced on the building structure and the whole steel platform climbing formwork.

[0006] Further, the wind-resistant system for the integral steel platform climbing formwork provided by the present application, the limiting support is a U-shaped rod composed of two vertical rods and a horizontal rod, one viscous damper is connected to each of the two vertical rods of the U-shaped rod, and one wall guide wheel is connected to each of the viscous dampers.

[0007] Further, the wind-resistant system for the integral steel platform climbing formwork provided by the present application, the horizontal rod and part of the vertical rods of the U-shaped rod extend out of the integral steel platform climbing formwork, and two steel cables are symmetrically connected between the two ends of the horizontal rod and the integral steel platform climbing formwork.

[0008] Further, the wind-resistant system for the integral steel platform climbing formwork provided by the present application, when the building structure is a core tube building, the damping mechanism is distributed in four groups on the four walls of the core tube building, and the outer rods are fixedly arranged on the corners of the integral steel platform climbing formwork and extend out of the integral steel platform climbing formwork, and the steel cables connected by two adjacent groups of the damping mechanism share one and are fixed to the integral steel platform climbing formwork through the outer side ends of the outer rods.

[0009] Further, the wind-resistant system for the integral steel platform climbing formwork provided by the present application, the two ends of the horizontal rod and the outer ends of the outer rods are provided with ball nodes connected with the steel cables.

[0010] Further, the wind-resistant system for the integral steel platform climbing formwork provided by the present application, the limiting support is a straight rod, the straight rod extends out of the integral steel platform climbing formwork, and two steel cables are symmetrically connected between the outer side ends of the straight rod and the integral steel platform climbing formwork.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] The application provides a wind resistance system for a whole steel platform climbing formwork. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a front view structural schematic diagram of the wind resistance system for the whole steel platform climbing formwork;

[0014] Figure 2 is a top view structural schematic diagram of the wind resistance system for the whole steel platform climbing formwork;

[0015] Figure 3 is a top view structural schematic diagram of a certain group of damping mechanisms in the first embodiment and the connection of the damping mechanisms with steel ropes;

[0016] Figure 4 is a top view structural schematic diagram of the certain group of damping mechanisms in the first embodiment attached to the building structure;

[0017] Figure 5 is a top view structural schematic diagram of an outer extension rod and a ball node connected to the end of the outer extension rod;

[0018] Figure 6 is a top view structural schematic diagram of a certain group of damping mechanisms in the second embodiment and the connection of the damping mechanisms with steel ropes;

[0019] Figure 7 is a top view structural schematic diagram of the certain group of damping mechanisms in the second embodiment attached to the building structure;

[0020] The drawings show:

[0021] 100, building structure, 200, integral steel platform climbing formwork, 300, damping mechanism, 310, wall guide wheel, 320, viscous damper, 330, limiting support, 400, cable, 500, outrigger, 600, spherical joint. DETAILED DESCRIPTION

[0022] The present application will be described in detail below with reference to the drawings. The advantages and features of the present application will be more apparent from the following description. It should be noted that the drawings are very simplified and are not drawn to scale, and are only used to facilitate and clarify the purpose of illustrating the embodiments of the present application.

[0023] Referring to Figures 1 to 5 The embodiment of the present application provides a wind-resistant system for an integral steel platform climbing formwork, which comprises at least one set of damping mechanisms 300 supported on each face outer wall of a building structure 100 and connected to an integral steel platform climbing formwork 200. Each set of damping mechanisms 300 comprises, in sequence, a wall guide wheel 310 slidingly and contactingly supported on the corresponding face outer wall of the building structure 100, a viscous damper 320 with a force sensor, and a limiting support 330 fixedly arranged on the integral steel platform climbing formwork 200. The limiting support 330 can be connected to the upright pole of the integral steel platform climbing formwork 200 by means of bolts or pipe clamps.

[0024] Referring to Figure 2The wind resistance system for the whole steel platform climbing formwork provided by the embodiment of the present application is used when the whole steel platform climbing formwork 200 on the building structure 100 is used as the operation platform for the construction of the super high-rise building. When the whole steel platform climbing formwork 200 in the high altitude is moved outward from the building structure 100 under the action of the wind load, the force sensor monitors the pulling force value of the outward movement of the whole steel platform climbing formwork 200. The viscous damper 320 controls the extension and retraction change of the length of the damping mechanism 300 in the opposite direction according to the outward pulling force value detected by the force sensor to change the length of the damping mechanism 300 in the corresponding direction, so that the wall guide wheel 310 makes the final attachment contact on the building structure 100 to prevent the whole steel platform climbing formwork 200 from being separated from the building structure 100, to offset the lateral load applied on the whole steel platform climbing formwork 200 by the wind load, to restore the whole steel platform climbing formwork 200 to be connected to the building structure 100, to prevent the whole steel platform climbing formwork 200 from being overturned, to avoid the safety hazard problem of the whole steel platform climbing formwork 200 being overturned under the action of the wind load, to enable the whole steel platform climbing formwork 200 to be stably, reliably and safely connected to the building structure 100 in the severe wind environment, and to avoid the major safety accident of the whole steel platform climbing formwork 200 falling due to the overturning under the action of the wind load. That is, during the operation of the super high-rise building, the posture of the whole steel platform climbing formwork 200 can be adjusted by the damping mechanism 300 according to the wind load on the outer surface of the whole steel platform climbing formwork 200 and the negative pressure state generated on the inner surface, to reduce the influence of the wind load on the whole steel platform climbing formwork 200, and to increase the safety and adaptability of the whole steel platform climbing formwork 200 of the super high-rise building in the wind environment.

[0025] The wind resistance system for the integral steel platform climbing formwork provided by the embodiment of the present application, the integral steel platform climbing formwork 200 appears negative pressure on the inner surface in the severe wind environment, which causes the overturning moment of the integral steel platform climbing formwork 200 to increase, and the structural safety degree is difficult to meet the construction safety, so that the integral steel platform climbing formwork 200 may produce displacement in the direction away from the building structure 100 in the state of the negative pressure on the inner surface, the opposite displacement amount is produced by the damping mechanism 300 to make the integral steel platform climbing formwork 200 produce displacement in the direction close to the building structure 100, the motion posture of the integral steel platform climbing formwork 200 is adjusted, and the integral steel platform climbing formwork 200 is restored to be connected to the building structure 100 and is not separated. Wherein the integral steel platform climbing formwork 200 contacts the wall of the building structure 100 through the wall-attached guide wheel 310 of the damping mechanism 300 before and after lifting, so that the stability of the integral steel platform climbing formwork 200 can be ensured, and the wall-attached guide wheel 310 of the damping mechanism 300 moves along the wall of the building structure 100 in the lifting process, so that the stability of the integral steel platform climbing formwork 200 in the lifting process is ensured. That is, since the wind resistance system is arranged on the integral steel platform climbing formwork 200, the wind resistance system can be lifted along with the lifting of the integral steel platform climbing formwork.

[0026] Please refer to Figure 1 , in order to improve the wind resistance adjustment and correction effect on the integral steel platform climbing formwork 200, the wind resistance system for the integral steel platform climbing formwork provided by the embodiment of the present application, each group of the damping mechanism 300 is longitudinally and uniformly spaced on the two walls of the building structure 100 and the integral steel platform climbing formwork 200. Two damping mechanisms 300 ensure the stable wind resistance adjustment of the integral steel platform climbing formwork 200.

[0027] Please refer to Figure 2 and Figure 3 , in order to improve the wind resistance capacity of the damping mechanism 300, the wind resistance system for the integral steel platform climbing formwork provided by the embodiment of the present application, the limiting support 330 is a U-shaped rod composed of two vertical rods and a horizontal rod, and each of the two vertical rods of the U-shaped rod is connected with one of the viscous dampers 320, and each of the viscous dampers 320 is connected with one of the wall-attached guide wheels 310. At this time, each group of damping mechanisms 300 is two damping mechanisms 300 connected by the horizontal rod of the U-shaped rod and arranged in parallel, and at the wind resistance node, the two viscous dampers 320 adjust the lateral load applied on the integral steel platform climbing formwork 200 by the wind load in opposite directions, so as to improve the wind resistance capacity of each group of damping mechanisms 300. Wherein the limiting support 330 is a U-shaped rod, which can improve the structural stability of a group of damping mechanisms 300 constructed by two damping mechanisms 300 and the structural stability of the integral steel platform climbing formwork 200 on which the damping mechanisms 300 are installed.

[0028] Please refer toFigures 2 to 3 In order to make the opposite direction reliability adjustment of the lateral load of the wind load applied on the integral steel platform climbing formwork 200, the wind resistance system for the integral steel platform climbing formwork provided by the embodiment of the present application, the transverse rods and part of the vertical rods of the U-shaped rod extend out of the integral steel platform climbing formwork 200, and further comprises two steel cables 400 symmetrically connected between the two ends of the transverse rods and the integral steel platform climbing formwork 200. At this time, when the integral steel platform climbing formwork 200 moves outward of the building structure 100 under the wind load, the viscous damper 320 of the damping mechanism 300 generates an opposite resistance, which is transmitted to the integral steel platform climbing formwork 200 through the limiting support 330 and the steel cable 400, so that the integral steel platform climbing formwork 200 generates a movement in the opposite direction or prevents it from moving outward, thereby ensuring that the integral steel platform climbing formwork 200 remains connected to the building structure 100 and avoids the problem of overturning. The steel cable 400 improves the reliability of the transmission path of the damping mechanism 300, that is, the damping mechanism 300 is double-fixedly connected to the integral steel platform climbing formwork 200 through the limiting support 330 and the steel cable 400, which can improve the transmission path of the damping mechanism 300.

[0029] Please refer to Figure 2 When the building structure 100 is a core tube building, the damping mechanism 300 is distributed on four walls of the core tube building, and further comprises an outer extension rod 500 fixedly arranged on each corner of the integral steel platform climbing formwork 200 and extending out of the integral steel platform climbing formwork 200, and the steel cables 400 connected between adjacent two groups of damping mechanisms 300 share one steel cable and are fixed to the integral steel platform climbing formwork 200 through the outer side end of the outer extension rod 500. Wherein, each wall of the core tube building is not limited to one damping mechanism 300, and when the cross-sectional size of the core tube building is large, the cross-sectional size can be increased for adjustment. At this time, the outer extension rods 500 at the four corners of the integral steel platform climbing formwork 200 are pulled together through the steel cable 400, and under the condition that the viscous damper 320 of the damping mechanism 300 generates resistance, the transmission path of the damping mechanism 300 is: viscous damper 320-limiting support 330-steel cable 400-integral steel platform climbing formwork 200, thereby preventing the movement trend of the integral steel platform climbing formwork 200 from moving outward. That is, through the cooperation of the outer extension rod 500 and the steel cable 400, the reaction force support supported on the building structure 100 by the wall guide roller 310 after the viscous damper 320 generates resistance is improved, thereby correcting and adjusting the integral steel platform climbing formwork 200.

[0030] Please refer to Figures 2 to 5In order to facilitate the connection of the steel cable 400, the wind-resistant system for the integral steel platform climbing formwork provided by the embodiment of the present application is provided with a ball joint 600 connected with the steel cable 400 at the two ends of the transverse rod and the outer end of the outrigger 500. The ball joint 600 can be a spherical hole articulated piece to facilitate the connection of the steel cable 400 on the ball joint 600.

[0031] Please refer to Figures 6 to 7 In order to achieve the wind-resistant purpose of the integral steel platform climbing formwork 200, the wind-resistant system for the integral steel platform climbing formwork provided by the embodiment of the present application is provided with a straight rod as the limiting support 330, which extends outside the integral steel platform climbing formwork 200 and further includes two steel cables 400 symmetrically connected between the outer end of the straight rod and the integral steel platform climbing formwork 200. At this time, the steel cable 400 can be connected at any position of the integral steel platform climbing formwork 200, not limited to the corner. At this time, the structural design is suitable for the wind-resistant of the integral steel platform climbing formwork 200 on the building structure 100 of the non-core tube building.

[0032] The present application is not limited to the above-mentioned specific embodiments. Obviously, the above-mentioned described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application. Those skilled in the art can make other levels of modifications and changes to the present application. Thus, if these modifications and changes of the present application belong to the scope of the claims of the present application, the present application also intends to include these modifications and changes.

Claims

1. A wind resistant system for a monolithic steel platform climbing formwork, characterized in that, The invention relates to a damping mechanism for a building structure, comprising at least one set of damping mechanisms supported on the outer walls of the building structure and connected to the integral steel platform climbing formwork, each set of damping mechanisms comprising in sequence a wall guide wheel supported on the corresponding outer wall of the building structure by sliding contact, a viscous damper with a force sensor, and a limiting support fixedly arranged on the integral steel platform climbing formwork; the limiting support is a U-shaped bar member composed of two vertical bars and a horizontal bar, the two vertical bars of the U-shaped bar member are respectively connected with one viscous damper, and each viscous damper is connected with one wall guide wheel; the horizontal bar and part of the vertical bars of the U-shaped bar member extend out of the integral steel platform climbing formwork, and the U-shaped bar member further comprises two steel cables symmetrically connected between the two ends of the horizontal bar and the integral steel platform climbing formwork; when the building structure is a core tube building, the damping mechanism is four sets of damping mechanisms distributed on the four walls of the core tube building, and the U-shaped bar member further comprises an outrigger fixedly arranged on each corner of the integral steel platform climbing formwork and extending out of the integral steel platform climbing formwork, and the steel cables connected by adjacent two sets of damping mechanisms share one steel cable and are fixed to the integral steel platform climbing formwork through the outer end of the outrigger.

2. The wind resistance system for an integral steel platform climbing ring as claimed in claim 1, wherein, Each set of damping mechanisms is two rows of damping mechanisms longitudinally and uniformly spaced on the building structure and the integral steel platform climbing formwork.

3. The wind resistance system for an integrated steel platform climbing scaffold of claim 1, wherein, The two ends of the horizontal bar and the outer end of the outrigger are each provided with a ball joint connected with the steel cable.

4. The wind resistant system for an integral steel platform climbing ring as defined in claim 1 wherein, The limiting support is a straight bar member, the straight bar member extends out of the integral steel platform climbing formwork, and the straight bar member further comprises two steel cables symmetrically connected between the outer end of the straight bar member and the integral steel platform climbing formwork.

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