CN113216695A - Template support vibration attenuation rod piece and anti-collapse control method - Google Patents

Template support vibration attenuation rod piece and anti-collapse control method Download PDF

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CN113216695A
CN113216695A CN202110516036.5A CN202110516036A CN113216695A CN 113216695 A CN113216695 A CN 113216695A CN 202110516036 A CN202110516036 A CN 202110516036A CN 113216695 A CN113216695 A CN 113216695A
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sleeve
rod
formwork support
inner rod
damper
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CN113216695B (en
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高欣
段庚鑫
兰春光
王泽强
秦泳
张楚傲
何舰
吴奕瞳
曲媛媛
王瑞强
李洋
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Beijing Anyuhao Museum Iot Technology Co ltd
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Jilin University
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G2025/042—Shores or struts; Chocks telescopic with devices to avoid accidental disengagement of the telescopic elements, e.g. during transport
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
    • G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Architecture (AREA)
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  • Civil Engineering (AREA)
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  • General Engineering & Computer Science (AREA)
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  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

本发明属于建筑施工技术领域，具体为一种模板支撑减振杆件与防垮塌控制方法，其包括：限位块、弹簧、阻尼器、应力应变传感器、数据线、连接螺栓、最大伸长卡槽、最大压缩卡槽、套筒、内杆和限位滑槽，所述内杆插入套筒内，所述套筒与内杆之间设置限位块，所述限位块内侧设置弹簧，所述阻尼器设置在套筒内腔右端侧壁上，所述阻尼器与应力应变传感器连接，所述应力应变传感器连接伸出套筒外部的数据线，所述阻尼器与内杆之间通过连接螺栓连接，所述套筒内壁开设最大伸长卡槽和最大压缩卡槽，所述套筒与内杆之间设置配合的限位滑槽，在提升模板支撑工程安全监测方法的同时也提升了模板支撑工程整体稳定性、可靠性。

Figure 202110516036

The invention belongs to the technical field of building construction, in particular to a formwork support vibration damping rod and an anti-collapse control method. a slot, a maximum compression slot, a sleeve, an inner rod and a limit chute, the inner rod is inserted into the sleeve, a limit block is arranged between the sleeve and the inner rod, and a spring is arranged inside the limit block, The damper is arranged on the side wall of the right end of the inner cavity of the sleeve, the damper is connected with the stress and strain sensor, the stress and strain sensor is connected with the data line extending out of the sleeve, and the damper and the inner rod pass through Connecting bolts, the inner wall of the sleeve is provided with a maximum elongation slot and a maximum compression slot, and a matching limit chute is set between the sleeve and the inner rod, which improves the safety monitoring method of the formwork support project at the same time. The overall stability and reliability of the formwork support project are improved.

Figure 202110516036

Description

Template support vibration attenuation rod piece and anti-collapse control method
Technical Field
The invention relates to the technical field of building construction, in particular to a template support vibration damping rod piece and an anti-collapse control method.
Background
The large-scale formwork support system is an important temporary facility in the construction of high-clearance and large-span concrete cast-in-place engineering and is a key factor for ensuring the safe and smooth operation of the construction process. At present, the collapse accident of the formwork support system becomes the main type of major production safety accident of the house municipal engineering in China.
Because the components of the existing formwork support are mainly connected in a semi-rigid manner and are easy to shake, the stress of the structure cannot be adjusted according to the actual situation, and the energy consumption and vibration reduction performance is limited, the random vibration of the formwork support caused by various external loads becomes one of the main causes of the collapse of the formwork support.
Meanwhile, the support collapse accident of the template often occurs suddenly, and the constructors are difficult to safely evacuate the dangerous area in time. Therefore, a collapse prevention control method capable of timely sending out correct early warning signals aiming at the risk of the support collapse of the template is urgently needed.
Disclosure of Invention
The invention aims to provide a template support vibration attenuation rod piece and an anti-collapse control method, energy generated by template support vibration is consumed by a damping device in the vibration attenuation rod piece, instability or potential risks of a formwork support system are prevented through the cooperation of a limiting block and a clamping groove, the rod piece is simple in structure and convenient to use, the instability and collapse risks of the template support system can be effectively resisted, the safety of the template support system is improved, and the anti-collapse control method is invented by combining the rod piece, so that the overall stability and the bearing capacity of the template support system are ensured, and the problems of easiness in shaking, low vibration resistance and poor safety guarantee existing in the conventional template support structure for the building in the background art are solved.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a template support damping rod piece, which comprises: stopper, spring, attenuator, stress strain sensor, data line, connecting bolt, the biggest draw-in groove that extends, the biggest compression draw-in groove, sleeve, interior pole and spacing spout, interior pole inserts in the sleeve, set up the stopper between sleeve and the interior pole, the stopper inboard sets up the spring, the attenuator sets up on sleeve inner chamber right-hand member lateral wall, the attenuator is connected with stress strain sensor, stress strain sensor connects the outside data line of stretching out the sleeve, pass through connecting bolt between attenuator and the interior pole and be connected, the biggest extension draw-in groove and the biggest compression draw-in groove are seted up to the sleeve inner wall, set up the spacing spout of complex between sleeve and the interior pole.
As a preferable aspect of the formwork support damper member according to the present invention, wherein: and the limiting block rod piece is popped out to be riveted with the maximum extension clamping groove and the maximum compression clamping groove when the compression and extension of the limiting block rod piece reach the limiting position.
As a preferable aspect of the formwork support damper member according to the present invention, wherein: the limiting block is fixedly connected with the inner rod and is compressed and extended under the action of the spring.
As a preferable aspect of the formwork support damper member according to the present invention, wherein: the sleeve fixes the damper, and the sleeve and the inner rod act together to allow the relative displacement of the rod piece of the inner rod to increase the overall deformation capacity and limit the maximum displacement of the rod piece of the inner rod.
As a preferable aspect of the formwork support damper member according to the present invention, wherein: the data line is provided with protective pad with telescopic hookup location, the sleeve outer wall is provided with the wearing layer.
A template support anti-collapse control method comprises the following steps:
the method comprises the following steps: establishing a finite element model of a template support system, analyzing an instability path and weak nodes of the finite element model, and additionally arranging a damping rod piece at a corresponding position and connecting a sensor and a processor;
step two: the sensor transmits data back in real time, and the processor analyzes the transmitted data back in real time according to a preset program;
step three: when the system judges that the whole template supporting system possibly has instability risk, the system sends out a prompt, and the damper is in a working state;
step four: the system continuously monitors, if the risk is further increased, the vibration reduction rod piece further plays a role, and the system sends a signal to prompt people to evacuate;
step five: when the template supporting system deforms beyond the controllable range to trigger the limiting block to act, the rod piece is converted into a rigid rod which is used as an additional structure of the template supporting system to supplement the stress of the participating structure, so that the overall rigidity and stability are improved, and the time is won for people to evacuate;
step six: and meanwhile, when the limiting block and the clamping groove act together, an audible and visual alarm is triggered to make a safety prompt.
Compared with the prior art: the energy generated when the inner sleeve and the outer sleeve move relatively is transmitted to the damper, and the damper consumes redundant energy to improve the overall stability and reliability of the formwork support system;
by utilizing the matching action of the limiting blocks and the clamping grooves, the rod piece can be converted from the vibration reduction rod piece into a rigid rod participating in structural stress, the reliability of the template support system under extreme conditions is improved, and time is won for people to evacuate under extreme conditions;
stress-strain sensors arranged in the vibration damping rod piece are used for collecting the stress-strain condition in the rod piece, a plurality of point positions can be monitored simultaneously, and the monitoring efficiency and the reliability are improved by matching with the existing monitoring means;
the method comprises the steps of predicting the overall instability path and possible weak points of a formwork support system through finite element numerical simulation, then utilizing a vibration reduction rod piece to consider safety monitoring equipment and collapse prevention equipment, effectively collecting and analyzing the internal deformation and instability conditions of the formwork support system, absorbing vibration energy of the formwork support system to improve overall reliability, converting the vibration energy into a rigid rod to participate in structural stress when the formwork support system is possibly collapsed, preventing or delaying collapse of formwork support, and improving overall stability and reliability of formwork support engineering while improving the safety monitoring method of the formwork support engineering.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 3 is a schematic side sectional view of the structure of the present invention;
FIG. 4 is a flow chart of an anti-collapse control method of the present invention;
FIG. 5 is a schematic diagram of an embodiment of the present invention.
In the figure: the device comprises a limiting block 1, a spring 2, a damper 3, a stress-strain sensor 4, a data line 5, a connecting bolt 6, a clamping groove with the largest extension of 7, a clamping groove with the largest compression of 8, a sleeve 9, an inner rod 10, a limiting sliding groove 11 and a vibration reduction rod piece a.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The invention provides a template support vibration damping rod piece and an anti-collapse control method, energy generated by vibration and deformation of a template support is consumed by a damping device in the vibration damping rod piece, instability or potential risk of a formwork supporting system is prevented through the cooperation of a limiting block and a clamping groove, the rod piece is simple in structure and convenient to use, the instability risk of the template support system can be effectively resisted, the safety of the template support system is improved, the anti-collapse control method is invented by combining the rod piece, so that the overall stability and the bearing capacity of the template support system are ensured, and the problems of easiness in shaking, low vibration resistance and poor safety guarantee existing in the existing template support structure for buildings in the background art are solved, and the anti-collapse control method comprises the following steps: the device comprises a limiting block 1, a spring 2, a damper 3, a stress strain sensor 4, a data line 5, a connecting bolt 6, a maximum extension clamping groove 7, a maximum compression clamping groove 8, a sleeve 9, an inner rod 10 and a limiting sliding groove 11;
interior pole 10 inserts in sleeve 9, set up stopper 1 between sleeve 9 and the interior pole 10, 1 inboard of stopper sets up spring 2, attenuator 3 sets up on sleeve 9 inner chamber right-hand member lateral wall, attenuator 3 is connected with stress strain sensor 4, stress strain sensor 4 connects the outside data line 5 of stretching out sleeve 9, be connected through connecting bolt 6 between attenuator 3 and the interior pole 10, sleeve 9 inner wall is seted up and is maximally extended draw-in groove 7 and maximally compressed draw-in groove 8, set up the spacing spout 11 of complex between sleeve 9 and the interior pole 10.
Wherein: a limiting block 1: when the inner rod 10 is compressed (extended) to reach a limiting position, the rod is popped out to be in mortise engagement with the maximum extension clamping groove 7 and the maximum compression clamping groove 8, so that the overall rigidity is improved;
and (3) a spring 2: giving a thrust to the limiting block 1, and pushing out the limiting block 1 when the limiting block 1 reaches a preset position;
the damper 3: the vibration energy of the structure is absorbed, the support stability of the template is improved, and the inner and outer rods 10 are allowed to generate relative displacement;
stress-strain sensor 4: collecting stress strain data of a rod piece of the inner rod 10;
data line 5: conducting the collected data;
the connecting bolt 6: connecting the inner rod with the damper 3;
maximum extension neck 7: limiting the maximum extension distance of the rod piece of the inner rod 10 under the combined action of the limiting block 1;
maximum compression card slot 8: limiting the maximum compression distance of the rod piece of the inner rod 10 under the combined action of the limiting block 1;
sleeve 9: the fixed damper 3 and the inner rod 10 act together to allow the relative displacement of the rod piece of the inner rod 10 to increase the overall deformation capacity and limit the maximum displacement of the rod piece of the inner rod 10;
an inner rod 10: the damper 3 is connected and coacts with the inner rod 10 to transmit energy such as vibration and the like to the damper 3;
limiting sliding groove 11: the rotation of the inner rod 10 is limited, and the relative movement of the inner rod 10 and the outer rod 10 is one-dimensional.
A template support anti-collapse control method comprises the following steps:
the method comprises the following steps: establishing a finite element model of a template support system, analyzing an instability path and weak nodes of the finite element model, and additionally arranging a damping rod piece at a corresponding position and connecting a sensor and a processor;
step two: the sensor transmits data back in real time, and the processor analyzes the transmitted data back in real time according to a preset program;
step three: when the system judges that the whole template supporting system possibly has instability risk, the system sends out a prompt, and the damper is in a working state;
step four: the system continuously monitors, if the risk is further increased, the vibration reduction rod piece further plays a role, and the system sends a signal to prompt people to evacuate;
step five: when the template supporting system deforms beyond the controllable range to trigger the limiting block to act, the rod piece is converted into a rigid rod which is used as an additional structure of the template supporting system to supplement the stress of the participating structure, so that the overall rigidity and stability are improved, and the time is won for people to evacuate;
step six: and meanwhile, when the limiting block and the clamping groove act together, an audible and visual alarm is triggered to make a safety prompt.
The principle of the vibration damping rod piece is realized: a vibration reduction rod piece (as shown in figure 5) is additionally arranged on a finite element software analysis instability path and a weak node, under certain conditions (such as a vibrator, a material distributor, wind, earthquake and the like), extra load is generated on a template support system from the outside, extra energy is applied to the template support system, the template support system vibrates integrally, the energy is transmitted to a damper 3 through an inner rod piece and an outer rod piece through the vibration reduction rod piece connected to the template support system, the damper 3 consumes the energy, so that the integral stability of the template support is ensured, the instability risk is reduced, if the energy generated from the outside is too large, the damper 3 cannot completely consume the generated energy, the inner rod piece and the outer rod piece generate too large relative displacement and exceed a preset safety allowable deformation amount, and when the maximum allowable deformation amount just exceeds the preset maximum allowable deformation amount, a limiting block 1 is popped up under the action of a spring 2 and is riveted and fixed in a clamping groove and clamped, form a rigid rod on the whole, the whole atress of template support system is participated in again to the rigid rod, additional safety guarantee is provided, the extra energy of template support system has not only been consumed to the damping rod, more postpone the template support and collapse when unavoidable danger as the safety reserve, withdraw for the personnel and strive for the time, guarantee personnel's safety, the damping member can erect inside the template support system as monitoring system's important constitution simultaneously, the problem of using optical instrument can only monitor the outside deformation of template support system in the past has been solved.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (6)

1.一种模板支撑减振杆件，其特征在于，包括：限位块(1)、弹簧(2)、阻尼器(3)、应力应变传感器(4)、数据线(5)、连接螺栓(6)、最大伸长卡槽(7)、最大压缩卡槽(8)、套筒(9)、内杆(10)和限位滑槽(11)，所述内杆(10)插入套筒(9)内，所述套筒(9)与内杆(10)之间设置限位块(1)，所述限位块(1)内侧设置弹簧(2)，所述阻尼器(3)设置在套筒(9)内腔右端侧壁上，所述阻尼器(3)与应力应变传感器(4)连接，所述应力应变传感器(4)连接伸出套筒(9)外部的数据线(5)，所述阻尼器(3)与内杆(10)之间通过连接螺栓(6)连接，所述套筒(9)内壁开设最大伸长卡槽(7)和最大压缩卡槽(8)，所述套筒(9)与内杆(10)之间设置配合的限位滑槽(11)。1. A formwork support damping rod, characterized in that it comprises: a limit block (1), a spring (2), a damper (3), a stress strain sensor (4), a data line (5), a connecting bolt (6), the maximum extension slot (7), the maximum compression slot (8), the sleeve (9), the inner rod (10) and the limit chute (11), the inner rod (10) is inserted into the sleeve Inside the cylinder (9), a limit block (1) is arranged between the sleeve (9) and the inner rod (10), a spring (2) is arranged inside the limit block (1), and the damper (3) A Line (5), the damper (3) and the inner rod (10) are connected by connecting bolts (6), and the inner wall of the sleeve (9) is provided with a maximum extension slot (7) and a maximum compression slot (7) (8), a matching limit chute (11) is provided between the sleeve (9) and the inner rod (10). 2.根据权利要求1所述的一种模板支撑减振杆件，其特征在于，所述限位块(1)杆件压缩(伸长)达到限位位置时弹出与最大伸长卡槽(7)和最大压缩卡槽(8)卯合。2. A formwork support damping rod according to claim 1, characterized in that, when the limit block (1) rod is compressed (extended) to reach the limit position, it pops out and the maximum elongation slot ( 7) Snap together with the maximum compression card slot (8). 3.根据权利要求1所述的一种模板支撑减振杆件，其特征在于，所述限位块(1)与内杆(10)固定连接，所述限位块(1)在弹簧(2)的作用下压缩与伸长。3. A formwork support damping rod according to claim 1, wherein the limit block (1) is fixedly connected with the inner rod (10), and the limit block (1) is in the spring (1). 2) under the action of compression and elongation. 4.根据权利要求1所述的一种模板支撑减振杆件，其特征在于，所述套筒(9)固定阻尼器(3)，与内杆(10)共同作用，允许内杆(10)杆件相对位移增加整体变形能力，同时限制内杆(10)杆件最大位移。4. A formwork support damping rod according to claim 1, characterized in that the sleeve (9) fixes the damper (3), and cooperates with the inner rod (10) to allow the inner rod (10) ) The relative displacement of the rod increases the overall deformation capacity, while limiting the maximum displacement of the inner rod (10). 5.根据权利要求1所述的一种模板支撑减振杆件，其特征在于，所述数据线(5)与套筒(9)的连接位置设置有防护垫片，所述套筒(9)外壁设置有耐磨层。5. A formwork support damping rod according to claim 1, characterized in that, a protective gasket is provided at the connection position of the data cable (5) and the sleeve (9), and the sleeve (9) ) The outer wall is provided with a wear-resistant layer. 6.一种模板支撑防垮塌控制方法，其特征在于，包括以下步骤：6. A formwork support anti-collapse control method, characterized in that, comprising the following steps: 步骤一：建立模板支撑体系的有限元模型，并分析其失稳路径和薄弱节点，在对应位置加设减振杆件并连接传感器与处理器；Step 1: Establish a finite element model of the formwork support system, analyze its instability path and weak nodes, add vibration-damping rods at the corresponding positions, and connect sensors and processors; 步骤二：传感器实时回传数据，处理器按预设程序实时分析回传数据；Step 2: The sensor sends back data in real time, and the processor analyzes the returned data in real time according to the preset program; 步骤三：当系统判断模板支撑体系整体可能存在失稳风险时，系统发出提醒，阻尼器处于工作状态；Step 3: When the system judges that the overall formwork support system may have a risk of instability, the system will issue a reminder that the damper is in working condition; 步骤四：系统持续监测，若风险进一步增加，减振杆件进一步发挥作用，系统发出信号提示人员撤离；Step 4: The system continuously monitors, if the risk further increases, the damping rod will play a further role, and the system will send a signal to remind personnel to evacuate; 步骤五：当模板支撑体系变形超出可控范围触发限位块作用时，杆件转变为刚性杆，作为模板支撑体系的额外结构补充参与结构受力，提升整体刚度和稳定性，为人员撤离争取时间；Step 5: When the deformation of the formwork support system exceeds the controllable range and triggers the action of the limit block, the rod is transformed into a rigid rod, which is used as an additional structure of the formwork support system to supplement the force of the participating structure, improve the overall stiffness and stability, and strive for the evacuation of personnel. time; 步骤六：同时限位块与卡槽共同作用时触发声光报警，做出安全提示。Step 6: At the same time, when the limit block and the card slot work together, the sound and light alarm will be triggered to make a safety prompt.
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CN113216695B CN113216695B (en) 2022-02-18

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CN209907645U (en) * 2019-04-27 2020-01-07 刘丽 Support arrangement for building damping damper
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Publication number Priority date Publication date Assignee Title
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