CN206292036U - A kind of device for detecting simply supported girder bridge seat empty amount - Google Patents

Abstract

The utility model discloses a device for detecting the emptying amount of simply supported girder bridge supports, which includes a scale surface, two measuring rods at the front end of the main body, the left measuring rod is fixed on the main body, and the right measuring rod can be stretched back and forth There is a nut on the main body to temporarily fix it, and there is a ring-shaped indicator line on the measuring rod for reading, and the two measuring rods can be folded. The utility model device is simple, easy to carry, easy to operate and has high precision, no need to install the sensor device in advance during the construction period, no need to jack up the bridge, especially suitable for the measurement of the void volume of simply supported beam supports in the city; effectively improved The efficiency of bridge bearing inspection also reduces the workload and difficulty of inspection personnel, and has good economic and social benefits.

Description

A device for detecting the emptying amount of simply supported beam bridge supports

technical field

The utility model belongs to the technical field of bridge support detection in civil engineering, and relates to a device for detecting the emptying amount of a simply supported beam bridge support.

Background technique

The bridge bearing is an important component in the bridge, which is used to transmit the force of the upper structure to the lower structure, and its force characteristic is that it can only bear pressure. If the support is not under pressure, it means that the support has not played its due role, and this state is the support void. The void of the support means that the bridge has changed its original state, which makes the bridge deviate from the stress form at the time of design, which is generally a precursor to the bridge overturning. The empty support means that the bridge is out of control. During the project, this situation should be avoided as much as possible to ensure the safety of the bridge structure. Therefore, it is necessary to detect the void of the bridge support.

There are generally two methods for checking the void of bridge bearings. One is the pressure sensor method, that is, during the installation of the support, the sensor and the support are placed up and down, and the change of the sensor is used to confirm whether the support is empty. However, this method requires the sensor to be installed on the support before the bridge is completed, which is obviously not suitable for the bridge that has been built. Therefore, there is another method that is easier to implement - the blade method, that is, use a very thin blade to penetrate into the direct gap between the support and the bridge to judge whether the support is empty. However, this method cannot measure the specific distance, and in actual engineering, limited by the height, environment, and even the influence of light, many measurements of support voids are subjectively determined only by manual observation. Therefore, it is very necessary to develop a high-precision measuring device that does not need to install sensors in advance during construction and can adapt to environmental conditions and personnel levels to the greatest extent, so as to ensure the accuracy and convenience of bridge bearing detection in service.

Contents of the invention

In view of the above-mentioned problems or defects in the prior art, the purpose of this utility model is to provide a device for detecting the emptying amount of simply supported beam bridge supports.

In order to achieve the above object, the utility model adopts the following technical solutions:

A device for detecting the emptying amount of a simply supported bridge support, comprising a main body of a scale surface, on which a first measuring rod and a second measuring rod are installed; the second measuring rod is provided with an installation channel, and the second measuring rod The end of the rod runs through the installation channel, and the second measuring rod can move along the length direction of the installation channel.

Further, scales are provided on the main body of the ruler surface along its length direction, ring-shaped indicator lines are provided on the second measuring rod; bar-shaped reading holes are provided on the side wall of the installation channel, when the first measuring rod and the When the top of the second measuring rod is flush, the circular indicator line is aligned with the 0 scale line in the scale.

Further, a fixing nut is arranged on the main body of the scale surface, and the end of the fixing nut extends into the installation channel to contact with the second measuring rod.

Further, the top end of the first measuring rod is movably provided with a first measuring hook, and the top end of the second measuring rod is movably provided with a second measuring hook.

Optionally, the top end of the first measuring rod is hinged to the first measuring hook, and the second measuring rod is hinged to the second measuring hook.

Further, the second measuring rod can rotate in the installation channel.

Further, a vial is provided on the main body of the ruler surface.

Compared with the prior art, the utility model has the following technical effects:

1. The device of the present utility model adjusts the tightness of the fixing nut by adjusting the angle and extension length of the second measuring rod, and by reading the reading on the main body of the scale surface, the support and the main beam, the support and the cover beam can be measured. The distance between them is used to judge whether the support is empty and the margin of the support.

2. The device of the utility model can tighten the nut, fix the right measuring rod and take it out to measure the degree, which is more convenient.

In summary, the utility model has a simple device, reliable results, and is easy to implement. It does not need to install sensor devices in advance during the construction period, and it does not need to jack up the bridge. The measurement accuracy is relatively high, and it is especially suitable for measuring the clearance of the bearings of bridges in service. Measurement; It effectively improves the efficiency of bridge bearing detection, and at the same time reduces the workload and difficulty of the detection personnel, and has good economic and social benefits.

The scheme of the present utility model is further explained and described in detail in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a side view of the utility model;

Fig. 3 is a measurement schematic diagram of the utility model;

The meanings of the symbols in the figure: 1—the first measuring hook, 2—the second measuring hook, 3—the hinge point, 4—the bar reading hole, 5—the main body of the scale surface, 6—the ring indicator line, 7—the fixing nut, 8—level bubble, 9—the first measuring rod, 10—the second measuring rod.

The scheme of the present utility model is further explained and described in detail in conjunction with the accompanying drawings and specific embodiments.

detailed description

According to the above-mentioned technical scheme, referring to Fig. 1-3, the device for detecting the emptying amount of a simply supported bridge support of the present invention includes a main body 5 of a scale surface, on which a first measuring rod 9 and a second measuring rod are installed. 10. An installation passage is provided inside the second measuring rod 10, the end of the second measuring rod 10 runs through the installation passage, and the second measuring rod 10 can move along the length direction of the installation passage.

In the device of the present utility model, the top end of the second measuring rod 10 is adjusted to extend the length of the installation passage, so that the top end of the second measuring rod 10 is aligned with the end of the main beam or the cover beam, and the top end of the first measuring rod 9 is aligned with the support. The side walls of the seat are flush, and by measuring the difference between the top of the first measuring rod 9 and the top of the second measuring rod 10, the void or margin between the main beam or the cover beam and the support is obtained.

In order to obtain the difference between the top end of the first measuring rod 9 and the top end of the second measuring rod 10, a scale is arranged on the said scale surface main body 5 along its length direction, and a ring indicator is arranged on the second measuring rod 10. Line 6, the side wall of the installation channel is provided with a bar-shaped reading hole 4, when the tops of the first measuring rod 9 and the second measuring rod 10 are flush, the ring indicator line 6 is aligned with the 0 scale line in the scale. Wherein, the 0 scale line in the scale is located at the center of the scale. When measuring the void volume or the margin, if the ring-shaped indicator line 6 indicates above the 0 scale line, the scale reading at this time is the percentage of the margin. On the contrary, if the ring-shaped indicator line 6 is below the 0 scale line, the scale reading at this time is the value of the void volume.

After the second measuring rod 10 is adjusted to a suitable position, in order to facilitate fixing its position, a fixing nut 7 is arranged on the said scale surface main body 5, and the end of the fixing nut 7 extends into the said installation channel and is in contact with the said second measuring rod 10. The two measuring rods 10 are in contact; when the fixing nut 7 is tightened, the position of the second measuring rod 10 is fixed, and when the fixing nut 7 is loosened, the length of the second measuring rod 10 extending out of the installation channel can be changed.

In order to ensure that the device of the present utility model is in use, the top end of the first measuring rod 9 is aligned and fixed with the side wall of the support, and the top end of the second measuring rod 10 is aligned and fixed with the end of the main beam or the cover beam. The top end of the first side measuring rod 9 is movably provided with a first measuring hook 1 , and the top end of the second measuring rod 10 is movably provided with a second measuring hook 2 . The first measuring hook 1 is used to hook the support, and the second measuring hook 2 is used to hook the main beam or the cover beam.

Optionally, the top end of the first measuring rod 9 is hinged to the first measuring hook 1 , and the second measuring rod 10 is hinged to the second measuring hook 2 . This design enables the first measuring hook 1 to rotate around the hinge point, and the second measuring hook 2 to rotate around the hinge point. When not measuring, the first measuring hook 1 can be overlapped with the first measuring rod 9, and the second measuring hook 2 It overlaps with the second measuring rod 10 and is easy to carry.

Under the above-mentioned hinged design mode, in order to ensure that the first measuring hook 1 can hook the support, and the second measuring hook 2 can hook the main beam or the cover beam, the second measuring rod 10 needs to be able to rotate in the installation channel, Make the first measuring hook 1 and the second measuring hook 2 perpendicular to each other, so as to measure the empty volume or the surplus volume.

When the device of the utility model is in use, it is necessary to ensure that the main body 5 of the scale surface is always in a horizontal state, so as to avoid the inclination of the bearing or the cover beam and other parts themselves, which will cause inaccurate measurement distances and cause misjudgment. Therefore, the main body 5 of the scale surface The end of the end is provided with level bubble 8, guarantees the level of the device of the present utility model by adjusting level bubble 8.

The device of the utility model is simple and reliable, and is easy to implement. It does not need to install a sensor device in advance during the construction period, and does not need to jack up the bridge. The measurement accuracy is relatively high, and it is especially suitable for the measurement of the support of the bridge in service. The efficiency of bridge support detection is effectively improved, and the workload and work difficulty of the detection personnel are also reduced at the same time, which has good economic and social benefits.

Claims (7)

1. a kind of device for detecting simply supported girder bridge seat empty amount, including chi face main body (5), it is characterised in that chi face main body (5) On the first measurement bar (9) and the second measurement bar (10) are installed；Installation passage, second are provided with second measurement bar (10) Installation passage is run through in the end of measurement bar (10), and the second measurement bar (10) can be moved along the length direction of installation passage.

2. the device of simply supported girder bridge seat empty amount is detected as claimed in claim 1, it is characterised in that chi face main body (5) scale is provided with along its length, ring-type instruction line (6) is provided with second measurement bar (10)；Installation passage Side wall on be provided with bar shaped reading hole (4), when the top of the first measurement bar (9) and the second measurement bar (10) flushes, ring-type Instruction line (6) is alignd with 0 graduation mark in scale.

3. the device of simply supported girder bridge seat empty amount is detected as claimed in claim 1, it is characterised in that chi face main body (5) be provided with fixing nut (7) on, the end of fixing nut (7) stretch into the installation passage with second measurement bar (10) contact.

4. the device of simply supported girder bridge seat empty amount is detected as claimed in claim 1, it is characterised in that first measurement bar (9) top is movably set with the first Measuring hook (1), and the top of the second measurement bar (10) is movably set with the second Measuring hook (2)。

5. the device of simply supported girder bridge seat empty amount is detected as claimed in claim 4, it is characterised in that first measurement bar (9) top and the first Measuring hook (1) is hinged, and the second measurement bar (10) and the second Measuring hook (2) are hinged.

6. the device of simply supported girder bridge seat empty amount is detected as claimed in claim 5, it is characterised in that second measurement bar (10) can be rotated in the installation passage.

7. the device of simply supported girder bridge seat empty amount is detected as claimed in claim 1, it is characterised in that chi face main body (5) air level (8) is provided with.