CN210533885U - A device for existing curtain anti-wind performance field test - Google Patents

A device for existing curtain anti-wind performance field test Download PDF

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Publication number
CN210533885U
CN210533885U CN201921167803.0U CN201921167803U CN210533885U CN 210533885 U CN210533885 U CN 210533885U CN 201921167803 U CN201921167803 U CN 201921167803U CN 210533885 U CN210533885 U CN 210533885U
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Prior art keywords
curtain wall
counter
field test
existing curtain
contact head
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CN201921167803.0U
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张广灿
陈浩
陈动
李晓东
席向东
易桂香
韩腾飞
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Central Research Institute of Building and Construction Co Ltd MCC Group
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Central Research Institute of Building and Construction Co Ltd MCC Group
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Abstract

The utility model relates to a device for the field test of the wind resistance performance of the existing curtain wall, which belongs to the technical field of the construction curtain wall engineering detection and mainly comprises a hydraulic jack, a pressurizing contact head, a counter-force support rod, a displacement meter, a strain gauge, an extension joint and an anchor bolt; the counter-force support rod is anchored on the building main body structure through an anchor bolt, and the pressurizing contact head and the displacement meter are arranged on the counter-force support rod; the pressurizing contact head is connected with the counter force supporting rod through a lengthened joint; the hydraulic jack is connected with the pressurizing contact head through a hydraulic pipe; and the strain gauge is bonded with the curtain wall. This device is through installing at the existing curtain in scene, through detecting existing curtain wind resistance can not dismantling, do not carry, do not install again to existing curtain under the prerequisite.

Description

A device for existing curtain anti-wind performance field test
Technical Field
The utility model relates to a device for existing curtain anti-wind performance field test is applicable to existing building curtain field test, belongs to building curtain engineering and detects technical field.
Background
The building curtain wall is an outer enclosure structure of a building, and the building curtain wall is a complete structural system, directly bears loads and effects applied to the building curtain wall, and transmits the loads and the effects to a main structure. The building curtain wall seals the structural main body and does not expose the structural main body. Meanwhile, the building curtain wall is also an outer decoration part of a building, and has a building function and a strong aesthetic effect. The main materials of the building curtain wall are products of modern industry, the glass has light reflection capability, the aluminum plate and the metal plate are rich in modern feeling, and strong building artistic effect can be generated.
As a novel modern building envelope structure technology, the building curtain wall is widely recognized by the advantages of light dead weight, strong modern sense, easiness in maintenance and the like. Along with the rapid development of the building curtain wall, the method brings opportunities to the building industry and also generates some problems, because the development speed is too high, the cultivation speed of people engaged in curtain wall technology and engineering management construction in China can not catch up with the development speed of the industry, partial enterprises have insufficient technical preparation, the people are forced to be on the horse in a warehouse, and the personnel such as design, materials, processing, construction, acceptance check and the like are seriously insufficient; the necessary equipment for curtain wall processing and the inspection and measurement instruments are difficult to be fully positioned, and the guarantee capability of the whole process of building curtain wall construction is influenced, so that certain hidden dangers can be avoided. In recent years, accidents of personal injury and property loss caused by glass burst or stone falling of building exterior walls happen occasionally, attention of the public and governments on safety management problems of building curtain walls is attracted, and safety influence of the building curtain walls cannot be ignored.
The technology of the existing building curtain wall is not perfect at the initial construction stage, so that the safety of most existing curtain walls is not high. The glass curtain wall industry has up to now been rated for designs of 25 years, and the shelf life of the key materials for glass bonding is 10 years, such as silicone structural adhesives. In addition, the structural members of the glass curtain wall can deform or loosen in the using process, and if the structural members are not detected and reinforced in time, the outer wall material is easy to fall or damaged due to the invasion of natural disasters such as typhoon and the like. Therefore, the safety detection of the building curtain wall becomes a problem to be solved urgently in the building engineering field.
The wind resistance performance of the building curtain wall is an important safety index of the building curtain wall, and the wind resistance performance detection of the building curtain wall can be divided into laboratory detection and field detection. The curtain wall wind resistance performance detection in the laboratory can involve multiple operations of material taking, disassembly, transportation, laboratory installation and the like on site, and after the tested curtain wall is installed in the laboratory, the curtain wall is loaded by simulating various working conditions through the air box. The wind resistance performance test of the curtain wall in a laboratory has the defects of time consumption, labor waste, material consumption and the like. Need provide pressure tank and supply pressure system when witnessed inspections, wherein the pressure tank will adjust according to the size of the curtain wall of surveying, also has the shortcoming of complicacy, hard and consumptive material to a certain extent.
Therefore, if a device can detect the wind resistance performance of the curtain wall on site, the defects of time consumption, labor consumption and material consumption of laboratory detection can be avoided, the defects of complexity, labor consumption and material consumption of original site detection can be avoided, and the problem which needs to be solved urgently in the technical field is solved.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to provide a device for existing curtain scene anti-wind performance is experimental, the device can carry out anti-wind performance test to the curtain at existing curtain engineering scene, detects the curtain through the concentrated load that applys equivalent wind load to the curtain, and the position and the size of load are concentrated in the adjustment, make the effect of control point similar with the effect under the design wind load effect, then whether the atress that detects panel, crossbeam, stand and pendant satisfies the safety requirement.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a device that is used for on-spot wind resistance of existing curtain performance test, its characterized in that: the device mainly comprises a hydraulic jack, a hydraulic pipe, a pressurizing contact head, a counter-force supporting rod, a displacement meter, a strain gauge, a lengthened joint and an anchor bolt; the counter-force support rod is anchored on the building main body structure through an anchor bolt, and the pressurizing contact head and the displacement meter are arranged on the counter-force support rod; the pressurizing contact head is connected with the counter force supporting rod through a lengthened joint; the hydraulic jack is connected with the pressurizing contact head through a hydraulic pipe; and the strain gauge is bonded with the curtain wall.
Preferably, the reaction force supporting rod is made of square steel.
Preferably, the hydraulic jack is a pressurizing device with a liquid crystal digital display screen.
Preferably, the hydraulic pipe is a rubber pipe with a steel wire rope.
Preferably, the pressurizing contact head is a cylinder which can be expanded and contracted according to the internal pressure.
Preferably, the displacement meter is a displacement detection device with a liquid crystal digital display screen.
Preferably, the strain gauge is a vibrating wire type flat rate strain gauge.
Preferably, the pressure contact is circular and has a diameter of 100 mm.
Preferably, the hydraulic jack is a pressure providing device, is provided with a digital display screen and can display the applied pressure, and the range of the hydraulic jack is 0-50 kN.
Preferably, the pressurizing contact head can transversely slide on the counter-force supporting rod, so that the function of quickly adjusting the direction is realized.
Preferably, the reaction support rod is fixed on the building structure main body through anchor bolts, and each 2m section has a plurality of bolt holes for installing and fixing the anchor bolts at two ends of a single section.
Preferably, the displacement meter is a device for detecting the deformation of the curtain wall, and is provided with a digital display screen which can directly display the displacement value.
Preferably, the number of the displacement meters is two.
Preferably, the strain gauge is an instrument for detecting changes in curtain wall stress.
Preferably, the strain gauges are three.
Preferably the elongate joints are for lengthening the strain gauge and the pressure contact, the single elongate joint being 50mm long.
Preferably, the anchor is a chemical anchor for anchoring the counter-force bearing stem to the building structural body.
The utility model also aims to provide an installation method of above-mentioned existing curtain resistance to wind performance field test device.
The above object of the utility model is achieved through the following technical scheme:
the utility model provides a device that is used for existing curtain wind resistance performance field test, its installation includes following step:
(1) anchoring counter-force support rod
Punching holes on walls, beams or columns of the main structure of the building, and fixing the counter-force support rods on the main structure of the building through fixing anchor bolts;
(2) mounting a pressurized contact
Fixing a pressurizing contact head on a counter-force supporting rod, selecting a lengthened joint according to the distance between the counter-force supporting rod and the curtain wall to enable the pressurizing contact head to contact the curtain wall, and then connecting the pressurizing contact head to a hydraulic jack through a pressurizing pipe;
(3) mounting displacement meter
Fixing a displacement meter on the reaction support rod, and selecting a lengthened joint according to the distance between the reaction support rod and the curtain wall to enable the displacement meter to contact the curtain wall;
(4) mounting strain gauge
Sticking the strain gauges to the curtain wall, selecting the number of the strain gauges according to different working conditions, and then connecting the strain gauges with a frequency acquisition instrument;
(5) initial reading
After the devices are installed, carrying out initial reading on the displacement meter and the strain gauge, and recording original data;
(6) zero setting of hydraulic jack
Adjusting the initial reading of the hydraulic jack to enable the pressure value on the digital display screen of the hydraulic jack to return to zero for pressurization;
(7) pressure test
According to the equivalent pressure calculated in advance, the hydraulic jack is utilized to carry out graded pressurization on the curtain wall, and the displacement meter and the strain gauge are read and recorded respectively in the graded reinforcing process;
(8) final reading
And (5) after the hydraulic jack reaches a preset pressure value, carrying out final reading and recording.
Preferably, the range of the displacement meter in the step (3) is 0-100 mm.
Preferably, the stroke of the hydraulic jack in the step (6) is 0-50 kN.
Has the advantages that:
the utility model discloses a device for existing curtain anti-wind performance field test installs on the existing curtain wall in scene, exerts pressure to existing curtain through hydraulic jack, can detect the stress and the displacement of curtain after exerting pressure, realizes can carrying out anti-wind performance test to existing curtain at the scene.
The invention is further illustrated by the accompanying drawings and the detailed description, which are not meant to limit the scope of the invention.
Drawings
Fig. 1 is a schematic view of an installation elevation for an existing curtain wall wind resistance performance field test device of the utility model.
Fig. 2 is a schematic plan view of the field test device for wind resistance of existing curtain walls.
Name of major component
1 counter-force support rod 2 hydraulic jack
3 hydraulic pipe 4 pressure contact
5 Displacement meter 6 strain gauge
7 lengthening joint 8 anchor bolt
Detailed Description
The present invention will be further explained with reference to the following specific drawings. After reading the teaching of the present invention, the skilled person can make various changes and modifications to the invention, and these equivalents fall within the scope of the claims of the present application.
Example 1
As shown in fig. 1, be the utility model discloses an installation facade schematic diagram for existing curtain wind resistance performance field test device, the utility model discloses a be used for existing curtain wind resistance performance field test device to be located the curtain inboard, the building structure is indoor, and the anchor utilizes hydraulic jack to apply the load to the curtain in the main structure. As shown in fig. 2, it is a schematic plan view of the field test device for wind resistance of existing curtain wall. Wherein, 1 is the reaction bracing piece, 2 is hydraulic jack, 3 is the hydraulic pressure pipe, 4 is the pressurization contact, 5 is the displacement meter, 6 is the strainometer, 7 is the extension joint, 8 is the crab-bolt. The device for the existing curtain wall wind resistance performance field test mainly comprises a counter-force support rod 1, a hydraulic jack 2, a hydraulic pipe 3, a pressurizing contact head 4, a displacement meter 5, a strain gauge 6, an extended joint 7 and an anchor bolt 8; the counter-force support rod 1 is mainly used for providing counter-force for the pressurizing contact head 4 so that the pressurizing contact head 4 can apply load to the curtain wall; the reaction force support rod 1 is fixed on the structure main body through an anchor bolt 8, and the number and the size of the anchor bolts are determined according to the load to be applied in the test; the hydraulic pipe 3 is mainly connected with the hydraulic jack 2 and the pressurizing contact head 4, and the length of the hydraulic pipe 3 can be selected according to the actual situation of the curtain wall on site so as to be convenient for on-site pressurizing; the hydraulic jack 2 mainly provides pressure for the pressurizing contact head 4, and a liquid crystal digital display screen is arranged on the hydraulic jack 2 and can read the pressure at any time; the pressurizing contact head 4 applies pressure to the curtain wall by utilizing the pressure transmitted by the hydraulic jack 2, the pressurizing contact head 4 is circular, the diameter of the pressurizing contact head is 100mm, and the pressurizing contact head is connected with the counter-force support rod 1 through the lengthened joint 7 and can transversely slide on the counter-force support rod 1, so that the function of quickly adjusting the direction is realized; the two displacement meters 5 are mainly used for detecting the displacement generated by the curtain wall structure after the curtain wall is pressed, and can transversely slide on the counter-force supporting rod 1, so that the function of quickly adjusting the direction is realized; the three strain gauges 6 are instruments for detecting the stress change of the curtain wall and are adhered to the detected curtain wall according to the test scheme; the lengthening joint 7 can increase the length of the displacement meter 5 and the pressurizing contact 4 so as to adjust the distance between the counter-force support rod 1 and the curtain wall; the anchor bolt 8 is mainly used for anchoring the reaction force support rod 1 to the building structure. The counter-force support rod 1 is made of square steel; the hydraulic jack 2 is a pressurizing device with a liquid crystal digital display screen; the hydraulic pipe 3 is a rubber pipe with a steel wire rope; the pressurizing contact head 4 is a cylinder and can be stretched according to the internal pressure; the displacement meter 5 is displacement detection equipment with a liquid crystal digital display screen; the strain gauge 6 is a vibrating wire type flat rate strain gauge; the lengthened joint 7 is a round steel pipe with a bolt buckle; the anchor 8 is a chemical anchor.
The hydraulic jack 2 is a pressure providing device and is provided with a digital display screen, the applied pressure can be displayed, and the measuring range of the hydraulic jack 2 is 0-50 kN.
The reaction force support rod 1 is fixed on the building structure main body through anchor bolts 8, and each 2m section has a plurality of bolt holes for installing and fixing the anchor bolts at two ends of a single section.
The displacement meter 5 is a device for detecting the deformation of the curtain wall, and is provided with a digital display screen which can directly display a displacement value.
The extension joints 7 are used to extend the strain gauges and the pressure contacts, and the single extension joint is 50mm long.
The anchor bolt 8 is a chemical anchor bolt for anchoring the counter-force support shank to the building construction body.
The utility model discloses a device for existing curtain anti-wind performance field test when placing the scene in and testing existing curtain, including following step:
(1) anchoring counter-force support rod
Punching holes on walls, beams or columns of the main building structure by using a special tool, and fixing the counter-force support rod 1 on the main building structure through a fixing anchor bolt 8;
(2) mounting a pressurized contact
After the counter-force supporting rod 1 is installed, the pressurizing contact head 4 is fixed on the counter-force supporting rod 1, the lengthened joint 7 is selected according to the distance between the counter-force supporting rod 1 and the curtain wall, so that the pressurizing contact head 4 is in contact with the curtain wall, and then the pressurizing contact head is connected to the hydraulic jack 2 through the hydraulic pipe 3;
(3) mounting displacement meter 5
After the counter-force supporting rod 1 is installed, the displacement meter 5 is fixed on the counter-force supporting rod 1, and the lengthened joint 7 is selected according to the distance between the counter-force supporting rod 1 and the curtain wall, so that the displacement meter 5 is in contact with the curtain wall;
(4) mounting strain gauge 6
Sticking the strain gauges 6 to a curtain wall through structural glue, selecting the number of the strain gauges 6 to be used according to different working conditions, and then connecting the strain gauges 6 with a frequency acquisition instrument;
(5) initial reading
After the devices are installed, carrying out initial reading on the displacement meter 5 and the strain gauge 6, and recording original data;
(6) hydraulic jack 2 zero setting
Adjusting the initial reading of the hydraulic jack 2 to enable the pressure value on the digital display screen of the hydraulic jack 2 to return to zero to be pressurized;
(7) pressure test
According to the equivalent pressure calculated in advance, the hydraulic jack 2 is utilized to carry out graded pressurization on the curtain wall, and the displacement meter 5 and the strain gauge 6 are read and recorded respectively in the graded reinforcing process;
(8) final reading
And after the hydraulic jack 2 reaches a preset pressure value, carrying out final reading and recording.
And (3) measuring range of the displacement meter is 0-100 mm.
The stroke of the hydraulic jack in the step (6) is 0-50 kN.
The utility model discloses a device for existing curtain anti-wind performance field test, through counter-force device to existing curtain applys the load, reach the purpose that carries out the witnessed inspections to existing curtain anti-wind performance technical indicator, the utility model discloses a device both can avoid the laboratory to detect the shortcoming consuming time, hard, consumptive material, can avoid the shortcoming of original witnessed inspections complicacy, hard and consumptive material again, plays crucial effect to the detection of curtain anti-wind performance.

Claims (9)

1. The utility model provides a device that is used for existing curtain anti-wind performance field test which characterized in that: the device mainly comprises a counter-force supporting rod, a hydraulic jack, a hydraulic pipe, a pressurizing contact head, a displacement meter, a strain gauge, a lengthened joint and an anchor bolt; the counter-force support rod is anchored on the building main body structure through an anchor bolt, and the pressurizing contact head and the displacement meter are arranged on the counter-force support rod; the pressurizing contact head is connected with the counter force supporting rod through a lengthened joint; the hydraulic jack is connected with the pressurizing contact head through a hydraulic pipe; and the strain gauge is bonded with the curtain wall.
2. The device for the existing curtain wall wind resistance performance field test according to claim 1, is characterized in that: the counter-force supporting rod is made of square steel.
3. The device for the existing curtain wall wind resistance performance field test according to claim 2, is characterized in that: the hydraulic jack is a pressurizing device with a liquid crystal digital display screen.
4. The device for the existing curtain wall wind resistance performance field test according to claim 3, is characterized in that: the hydraulic pipe is a rubber pipe with a steel wire rope.
5. The device for the existing curtain wall wind resistance performance field test according to claim 4, is characterized in that: the pressurizing contact head is a cylinder.
6. The device for the existing curtain wall wind resistance performance field test according to claim 5, is characterized in that: the displacement meter is a displacement detection device with a liquid crystal digital display screen.
7. The device for the existing curtain wall wind resistance performance field test according to claim 6, is characterized in that: the strain gauge is a vibrating wire type flat rate strain gauge.
8. The device for the existing curtain wall wind resistance performance field test according to claim 1, is characterized in that: the lengthened joint is a round steel pipe with a bolt buckle.
9. The device for the existing curtain wall wind resistance performance field test according to claim 1, is characterized in that: the anchor bolt is a chemical anchor bolt.
CN201921167803.0U 2019-07-23 2019-07-23 A device for existing curtain anti-wind performance field test Active CN210533885U (en)

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Application Number Priority Date Filing Date Title
CN201921167803.0U CN210533885U (en) 2019-07-23 2019-07-23 A device for existing curtain anti-wind performance field test

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112649286A (en) * 2021-01-16 2021-04-13 中冶建筑研究总院有限公司 Flexible roof wind-resistant uncovering performance field detection equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112649286A (en) * 2021-01-16 2021-04-13 中冶建筑研究总院有限公司 Flexible roof wind-resistant uncovering performance field detection equipment

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