Finish rolling steel bar monitoring device in hanging basket construction

Abstract

The utility model discloses a finish rolling steel bar monitoring device in hanging basket construction, and belongs to the field of finish rolling steel bar tension monitoring. The monitoring device comprises a steel sleeve, the steel sleeve comprises connecting ends and a rod body, the connecting ends are arranged at the two ends of the rod body, and the connecting ends are used for being connected with finish rolling steel bars; a cavity is formed in the rod body, and the vibrating wire type sensing component is arranged in the cavity; the data transmitter is in communication connection with the vibrating wire type sensing component; the data acquisition unit is in communication connection with the data transmitter; and the alarm is in communication connection with the data acquisition unit. The utility model provides a device for carrying out safety monitoring on the tension of the finish rolling reinforcing steel bar in the construction process.

Description

Technical Field

[0001] The utility model relates to the technical field of fine-rolled steel bar tension monitoring, in particular to a fine-rolled steel bar monitoring device in hanging basket construction. Background Art

[0002] At present, when casting cantilever beam bridges with larger spans, the hanging basket construction method is widely used because it does not require the erection of scaffolding and large cranes, and compared with other methods, it has the advantages of light structure, simple and convenient assembly, and no weight.

[0003] The most dangerous working conditions of hanging basket construction are moving the basket and pouring concrete. Before the hanging basket moves forward, the constraints and connections must be fully checked. Before pouring concrete, the anchoring state and the stress state of the sling must be carefully checked. Among them, the fine-rolled steel bar, as the main load-bearing component of the hanging basket, is directly related to whether the hanging basket can work safely and reliably. There are many examples of the hanging basket overturning and falling due to the brittle fracture of the hanging basket sling. The root cause is due to the characteristics of the fine-rolled steel bar and the operation based on personal subjective experience during the construction, which has caused significant personnel and economic losses.

[0004] Therefore, there is an urgent need for a monitoring device to safely monitor the tension of the fine-rolled steel bars during the construction process. Utility Model Content

[0005] The main purpose of the utility model is to provide a monitoring device for fine-rolled steel bars in hanging basket construction, aiming at carrying out real-time monitoring of fine-rolled steel bars in hanging basket construction.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a monitoring device for finely rolled steel bars in hanging basket construction, and the monitoring device comprises:

[0007] A steel sleeve, the steel sleeve comprising a connecting end and a rod body, the connecting ends are arranged at both ends of the rod body, and the connecting ends are used to connect the finished rolled steel bars;

[0008] A vibrating-string induction component, wherein a cavity is provided inside the rod body, and the vibrating-string induction component is arranged in the cavity;

[0009] a data transmitter in communication with the vibrating-wire sensing component;

[0010] A data collector, the data collector is communicatively connected with the data transmitter;

[0011] An alarm is communicatively connected with the data collector.

[0012] Optionally, in an embodiment of the utility model, the steel sleeve connects two of the high-quality rolled steel bars, one of which is connected to the hanging basket truss through a nut, and the other of which is connected to the concrete bridge body through a nut.

[0013] Optionally, in an embodiment of the present invention, the monitoring device further comprises an electronic level bubble, and the electronic level bubble is communicatively connected to the data transmitter.

[0014] Optionally, in an embodiment of the present utility model, the monitoring device further comprises a temperature sensor, the temperature sensor monitors the temperature of the vibrating-wire sensing component, and the temperature sensor is communicatively connected to the data transmitter.

[0015] Optionally, in an embodiment of the utility model, the monitoring device further comprises a bellows, the data transmitter is arranged on the outer surface of the rod body, and the bellows is sleeved on the outer periphery of the steel sleeve and the fine-rolled steel bar and avoids the data transmitter.

[0016] Optionally, in an embodiment of the utility model, one end of the bellows is fixedly connected to the rod body.

[0017] Optionally, in an embodiment of the present invention, the alarm is an audible and / or visual alarm.

[0018] Optionally, in an embodiment of the present invention, the steel bar is threadedly connected to the connecting end.

[0019] Compared with the prior art, the utility model can at least achieve the following beneficial effects. During the construction of the hanging basket, it is usually necessary to use multiple sections of steel bars to provide support for the hanging basket. Therefore, the tension of the steel bars that provide support for the hanging basket is an important factor affecting the safety of the hanging basket construction. When connecting multiple sections of steel bars, steel sleeves are usually used to connect them, and the connecting end of the steel sleeve can connect the steel sleeve to the steel bars. A cavity is opened inside the rod body of the steel sleeve to accommodate relevant devices for monitoring the steel bars. The vibrating string sensing component is used to monitor the tension of the steel bars in real time, and the real-time tension of the steel bars is sent to the data collector through the data transmitter, and the data collector compares and analyzes the real-time tension of the steel bars. If the tension of the steel bars exceeds the preset safety threshold, the data collector controls the alarm to sound an alarm to achieve a safety warning. The function of real-time safety monitoring of the tension of the finished rolled steel bars during the construction process is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1It is a structural schematic diagram of an embodiment of a monitoring device for finely rolled steel bars in hanging basket construction of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the utility model after the installation of a monitoring device for fine-rolled steel bars in hanging basket construction.

[0023] Description of Figure Numbers:

[0024] 100, steel sleeve; 110, connection end; 120, rod body; 200, vibrating string induction component; 300, data transmitter; 400, data collector; 500, alarm; 610, hanging basket truss; 620, concrete bridge body; 630, finely rolled steel bar; 700, electronic level bubble; 800, temperature sensor; 900, bellows;

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] Reference Figure 1~Figure 2 The utility model provides a monitoring device for fine-rolled steel bars in hanging basket construction. It includes:

[0031] The steel sleeve 100 includes a connecting end 110 and a rod body 120. The connecting ends 110 are provided at both ends of the rod body 120. The connecting ends 110 are used to connect the fine-rolled steel bars 630.

[0032] Vibrating-string induction component 200, a cavity is provided inside the rod body 120, and a vibrating-string induction component 200 is provided in the cavity;

[0033] A data transmitter 300, the data transmitter 300 is communicatively connected with the vibrating-wire sensing component 200;

[0034] A data collector 400, the data collector 400 is in communication connection with the data transmitter 300;

[0035] The alarm 500 is connected to the data collector 400 for communication.

[0036] In this embodiment, when connecting multiple sections of steel bars, a steel sleeve 100 is usually selected to connect them, and the connecting end 110 of the steel sleeve 100 can connect the steel sleeve 100 and the steel bars. A cavity is provided inside the rod body 120 of the steel sleeve 100 to accommodate relevant devices for monitoring the steel bars. The vibrating string sensing component 200 is used to monitor the tension of the steel bars in real time, and the real-time tension of the steel bars is sent to the data collector 400 through the data transmitter 300, and the data collector 400 compares and analyzes the real-time tension of the steel bars. If the tension of the steel bars exceeds a preset safety threshold, the data collector 400 controls the alarm 500 to sound an alarm to implement a safety warning. The function of real-time safety monitoring of the tension of the finished rolled steel bars 630 is implemented during the construction process.

[0037] Specifically, the connection section and the steel bar are connected by a thread. Compared with other connection methods, the thread connection is simple and reliable, and can be disassembled and reused.

[0038] The alarm 500 can be a sound alarm 500, a flash alarm 500 or a sound and light alarm 500, preferably a sound and light alarm.

[0039] Furthermore, the steel sleeve 100 is connected to two finely rolled steel bars 630 , one of which is connected to the hanging basket truss 610 through a nut, and the other of which is connected to the concrete bridge body 620 through a nut.

[0040] At present, in order to avoid unnecessary damage to the fine rolled steel bar 630 caused by excessive anchoring prestress, anchoring is often performed based on personal subjective experience, using a small hammer to gently tap the fine rolled steel bar 630, and judging whether the anchor is in place based on its echo. Insufficient tightening of the nut is often the main cause of insufficient tension. However, the tension inspection in the prior art is not accurate, which poses a safety hazard in the subsequent construction process.

[0041] By setting the vibrating wire sensing component 200, the tension of the fine rolled steel bar 630 can be monitored in real time during the anchoring process to ensure that the prestress of the fine rolled steel bar 630 is appropriate. Compared with personal subjective experience, the specific prestress data is more reliable, reducing hidden dangers and improving construction safety.

[0042] Furthermore, the monitoring device also includes an electronic level bubble 700 , which is communicatively connected to the data transmitter 300 .

[0043] The electronic level bubble 700 is used to monitor the verticality of the steel bar in real time. During the construction process, the fine-rolled steel bar 630 supports the hanging basket for a long time, and the shaking of the hanging basket will inevitably cause the steel bar to bend and deform. The bending of the steel bar within a certain range is allowed. If the bending degree of the steel bar exceeds a certain threshold, it may cause safety hazards. Therefore, a level bubble is set to monitor the verticality of the steel bar in real time. If the verticality of the steel bar changes beyond a predetermined threshold, the data collector 400 controls the alarm 500 to issue an alarm.

[0044] Furthermore, the monitoring device further includes a temperature sensor 800 , which monitors the temperature of the vibrating-wire sensing component 200 . The temperature sensor 800 is in communication connection with the data transmitter 300 .

[0045] Temperature will affect the measurement accuracy of the vibrating-wire sensing component 200, and the ambient temperature of the construction is not stable. It is higher in summer and lower in winter. In addition to environmental factors, there are many other factors that will affect the temperature of the steel sleeve 100. Therefore, a temperature sensor 800 is set to monitor the working temperature of the vibrating-wire sensing component 200, and the tension of the finished steel bar 630 is accurately measured according to the corresponding calculation formula based on the working temperature. It is understandable that the data collector 400 can be pre-set to combine the signal transmitted by the vibrating-wire sensing component 200 with the temperature sensed by the temperature sensor 800, and then calculate the precise tension according to the calculation formula. Prevent false alarms caused by temperature changes.

[0046] The fine-rolled steel bar 630 has strong tensile properties, small size and light weight, but its shear resistance is not strong. The fine-rolled steel bar 630 is a prestressed threaded steel bar produced by hot rolling, post-rolling residual heat treatment or heat treatment. It is a special steel material and is very easy to break after multiple bending, heating and electric welding. At present, the exposed fine-rolled steel bar 630 is wrapped with rubber or plastic tubes to avoid damage during accident operations. However, in actual projects, due to the inconvenience of PVC tube wrapping, tape wrapping is often used, which has a greater engineering risk.

[0047] The monitoring device further includes a bellows 900 . The data transmitter 300 is arranged on the outer surface of the rod body 120 . The bellows 900 is sleeved on the outer periphery of the steel sleeve 100 and avoids the data transmitter 300 . One end of the bellows 900 is fixedly connected to the rod body 120 .

[0048] This solution uses a corrugated tube 900 to protect the fine-rolled steel bar 630 and the steel sleeve 100. Compared with the PVC pipe, the corrugated tube 900 can be retracted. During the installation process, the corrugated tube 900 can be retracted first, and then the retracted corrugated tube 900 can be extended after the installation is completed. Compared with the installation of the PVC pipe, it is easier. In addition, the retractable feature of the corrugated tube 900 allows the operator to check the status of the fine-rolled steel bar 630 in the daily process, thereby improving the safety during the construction process.

[0049] The following is an implementation process of this solution:

[0050] 1. The steel sleeve 100 is manufactured according to the design requirements of the fine-rolled steel bar 630 so that it can be firmly connected with the fine-rolled steel bar 630;

[0051] 2. Connect one end of the fine-rolled steel bar 630 to a connecting end 110 on the steel sleeve 100, and fix the other end of the fine-rolled steel bar 630 to the hanging basket truss 610 through a nut;

[0052] 3. The other end connecting end 110 is connected to another section of fine rolled steel bar 630 by the same operation, and the other end of this section of fine rolled steel bar 630 is fixed to the concrete bridge body 620;

[0053] 4. Turn on the data collector 400 and the alarm 500 and check whether the connection is smooth;

[0054] 5. Observe the information on the display screen of the data collector 400, and adjust the tightness of the upper and lower nuts of the finished rolled steel bar 630 to ensure that the applied prestressing force meets the design requirements;

[0055] 6. After the anchoring is completed, the corrugated sleeve is extended up and down to cover the exposed fine-rolled steel bars 630;

[0056] 7. As the hanging basket moves forward, reverse the above steps to complete the disassembly.

[0057] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A monitoring device for fine-rolled steel bars in hanging basket construction, characterized in that: The monitoring device comprises: A steel sleeve, the steel sleeve comprising a connecting end and a rod body, the connecting ends are arranged at both ends of the rod body, and the connecting ends are used to connect the finished rolled steel bars; A vibrating-string induction component, wherein a cavity is provided inside the rod body, and the vibrating-string induction component is arranged in the cavity; a data transmitter in communication with the vibrating-wire sensing component; A data collector, the data collector is communicatively connected with the data transmitter; An alarm is communicatively connected with the data collector.

2. The monitoring device for finely rolled steel bars in hanging basket construction according to claim 1 is characterized in that: The steel sleeve is connected to the two precision-rolled steel bars, one of which is connected to the hanging basket truss through a nut, and the other is connected to the concrete bridge body through a nut.

3. The monitoring device for finely rolled steel bars in hanging basket construction according to claim 1 is characterized in that: The monitoring device further comprises an electronic level bubble which is communicatively connected with the data transmitter.

4. The monitoring device for finely rolled steel bars in hanging basket construction according to claim 3 is characterized in that: The monitoring device further includes a temperature sensor, which monitors the temperature of the vibrating-wire sensing component and is communicatively connected to the data transmitter.

5. The monitoring device for finely rolled steel bars in hanging basket construction according to claim 4 is characterized in that: The monitoring device further comprises a bellows, the data transmitter is arranged on the outer surface of the rod body, and the bellows is sleeved on the outer periphery of the steel sleeve and the fine-rolled steel bar and avoids the data transmitter.

6. The monitoring device for finely rolled steel bars in hanging basket construction according to claim 5, characterized in that: One end of the corrugated tube is fixedly connected to the rod body.

7. The monitoring device for finely rolled steel bars in hanging basket construction according to claim 5, characterized in that: The alarm is an audible and / or visual alarm.

8. The monitoring device for finely rolled steel bars in hanging basket construction according to claim 1, characterized in that: The steel bar is threadedly connected to the connection end.

Images