CN105319082A - Historic building wooden pillar overturning deformation loading measurement device and loading measurement method thereof - Google Patents
Historic building wooden pillar overturning deformation loading measurement device and loading measurement method thereof Download PDFInfo
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- CN105319082A CN105319082A CN201510886530.5A CN201510886530A CN105319082A CN 105319082 A CN105319082 A CN 105319082A CN 201510886530 A CN201510886530 A CN 201510886530A CN 105319082 A CN105319082 A CN 105319082A
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Abstract
The invention relates to a historic building wooden pillar overturning deformation loading measurement device. The historic building wooden pillar overturning deformation loading measurement device comprises a concrete bearing platform and a steel sleeve, wherein a plurality of pull rings are uniformly distributed on a peripheral wall of the steel sleeve along the peripheral direction at intervals; an upper steel strand for calibrating is bound on and dragged out from each pull ring; each upper steel strand is connected with a force sensor, a lower steel strand, an extension spring and a calibrating screw rod in sequence; a nut which is anchored into a ground anchor hole sleeves each calibrating screw rod. The device further comprises a loading steel strand, a flat plate, a first dial indicator and a second dial indicator. The invention further comprises a loading measurement method of the historic building wooden pillar overturning deformation loading measurement device. With the adoption of the historic building wooden pillar overturning deformation loading measurement device and the loading measurement method thereof, boundary conditions of a pillar bottom partition of a measured historic building wooden pillar can be really reflected under laboratory conditions and the historic building wooden pillar can realize overturning deformation under the state that the whole body keeps stable; and the loading amplitude precision is high, the manual operation is simple and large-size fields are not needed.
Description
Technical field
The present invention relates to the distortion of toppling of a kind of ancient building pin and load measurement mechanism and measuring method thereof.
Background technology
It is inevitable and ubiquitous problem in historic building structure that pillar entirety is toppled always.Study real pillar topple distortion on research ancient Wood construction impact then seem very important.But in reality, one in-service ancient building scene is carried out pushing away cover load and unrealistic, and the traditional inclination load mode in laboratory is difficult to reappear the deformation condition that in real ancient Wood construction, pillar topples: on the one hand, due to bottom true ancient building pillar and stone base of column stone be mutually cut off, excessive angle of inclination can cause pillar that rollover or unstability occur very soon, and therefore every grade of angle of inclination loaded is very small.In traditional load mode, the axial pressure of trabeation is applied by lifting jack on the other hand, and the axial pressure on such top can make it cannot keep stable to pillar generation moment-in-plane and second-order effects in column inclination process.Owing to usually adopting hinged bottom pillar in traditional load mode or just having connect, therefore the problems referred to above do not exist, but do not conform to the boundary condition that real center pillar the stone base of a column and pillar cut off.
Summary of the invention
In view of the deficiencies in the prior art, technical matters to be solved by this invention is to provide the distortion of toppling of a kind of ancient building pin and loads measurement mechanism and measuring method thereof, the boundary condition cut off at the bottom of true ancient building pin can not only being reacted, to topple the loading measurement mechanism of distortion keeping stable ancient building pin in ancient building pin tilting procedure again.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of ancient building pin topples to be out of shape and loads measurement mechanism, comprise the concrete bearing platform in order to fixing measured ancient building pin bottom of vertically placing, and in order to be set in the steel bushing of measured ancient building wood column top, described steel bushing periphery wall circumferentially has several draw rings uniformly at intervals, each draw ring is all bound, pull out the upper steel strand wires in order to calibration, described upper steel strand wires and force snesor, lower steel strand wires, extension spring, calibration screw is linked in sequence from top to bottom successively, described calibration screw is arranged with the nut in order to be anchored in earth anchor hole, also comprise drawing measured ancient building pin toward the loading steel strand wires of direction run-off the straight rotation of toppling, the flat board being separately positioned on measured ancient building pin shaft both sides, at least one first clock gauge perpendicular to the setting of plate work face and the second clock gauge being erected at measured ancient building pin column cap place, the workplace of described flat board, the operative orientation of the second clock gauge all parallel with direction of toppling.
Preferably, described plate work face is vertically installed with three the first clock gauges, and described three the first clock gauges are arranged along horizontal homogeneous interval, plate work face.
Preferably, described flat board adopts poly (methyl methacrylate) plate.
Preferably, described concrete bearing platform is whole casting concrete cushion cap, and described concrete bearing platform is fixed on ground through earth anchor screw rod.
Ancient building pin topple distortion load measurement mechanism add a load measuring method, comprise any one ancient building pin described above topple distortion load measurement mechanism, comprise following steps:
(1) measured ancient building pin is vertically placed on concrete bearing platform reposefully, described concrete bearing platform is fixed on ground through earth anchor screw rod, and add that temporary lateral support ensures that it can not topple in installation, calibration process at measured ancient building pin periphery, several draw rings are welded on steel bushing lateral wall equably, and described steel bushing is set in measured ancient building wood column top;
(2) described upper steel strand wires head end is bundled on each draw ring, described upper steel strand wires end is bound with force snesor one working end and is connected, another working end of described force snesor is bound with the lower steel strand wires head end in order to calibrate and is connected, described lower steel strand wires end is bound with extension spring one working end and is connected, another working end of described extension spring is welded with calibration screw head end, and described calibration screw is anchored through nut and is fixed in earth anchor hole;
(3) calibration screw is regulated, come to apply drawing stress to upper and lower steel strand wires by extension spring, and read out applied pulling force reading by force snesor, when the data consistent of institute's force sensor, namely think that measured ancient building pin reaches equilibrium state, the temporary lateral support of now dismantling around measured ancient building pin, and can calculate by the reading of upper steel strand wires and measured ancient building pin angulation and force snesor the vertical tension that measured ancient building pin bears and be capital axle power;
(4) direction of toppling of measured ancient building pin is determined, a flat board is sticked respectively in measured ancient building pin shaft both sides, described plate work face parallels with direction of toppling, and three the first clock gauges are vertically installed with on described plate work face, and described three the first clock gauges are arranged along horizontal homogeneous interval, plate work face, topple in process at measured ancient building pin, the angle of the torsion of measured ancient building pin and plane outer incline can be derived by the reading reading the first clock gauge, judge whether the direction of toppling of measured ancient building pin deflects,
(5) when loading beginning, choose a draw ring paralleled with direction of toppling, and on described draw ring, additionally bind steel strand wires as loading steel strand wires, and the horizontal tilt amount of measured ancient building pin column cap is read at measured ancient building pin column cap place erection one second clock gauge, the operative orientation of described second clock gauge also parallels with direction of toppling, and reaches by drawing described loading steel strand wires the loading that measured ancient building pin topples.
Compared with prior art, the present invention has following beneficial effect: the present invention adopts the method for Method of Steel Strand Stretching to replace the load mode of traditional column cap lifting jack axial pressure, the boundary condition that can either cut off at the bottom of actual response post in laboratory conditions, true historic building structure can be realized under the state keeping measured ancient building pin be tilted in monolithic stability again to topple distortion, loading amplitude precision is high, manual operation is simple, without large-scale site requirements.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the schematic front view of embodiment of the present invention structure.
Fig. 2 is the schematic top plan view of embodiment of the present invention structure.
In figure: the measured ancient building pin of 1-, 2-concrete bearing platform, 3-steel bushing, 4-draw ring, the upper steel strand wires of 5-, 6-force snesor, steel strand wires under 7-, 8-extension spring, 9-calibration screw, 10-nut, 11-loads steel strand wires, and 12-is dull and stereotyped, 13-first clock gauge, 14-second clock gauge, 15-earth anchor screw rod.
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
As shown in Figure 1 and 2, a kind of ancient building pin topples to be out of shape and loads measurement mechanism, comprise the concrete bearing platform 2 in order to fixing measured ancient building pin 1 bottom of vertically placing, and in order to be set in the steel bushing 3 on measured ancient building pin 1 top, described steel bushing 3 periphery wall circumferentially has several draw rings 4 uniformly at intervals, the number of described draw ring 4 preferably eight, be not limited thereto, each draw ring 4 is all bound, pull out the upper steel strand wires 5 in order to calibration, described upper steel strand wires 5 end is connected with force snesor 6 one working end, described another working end of force snesor 6 is connected with lower steel strand wires 7 head end, described lower steel strand wires 7 end is connected with extension spring 8 one working end, described another working end of extension spring 8 is connected with calibration screw 9 head end, described calibration screw 9 is arranged with in order to be anchored the nut 10 in earth anchor hole, also comprise drawing measured ancient building pin 1 toward the loading steel strand wires 11 of direction run-off the straight rotation of toppling, the flat board 12 being separately positioned on measured ancient building pin 1 shaft both sides, at least one first clock gauge 13 perpendicular to dull and stereotyped 12 workplaces settings and the second clock gauge 14 being erected at measured ancient building pin 1 column cap place, the operative orientation of the described workplace of dull and stereotyped 12, the second clock gauge 14 all parallels with direction of toppling.
In embodiments of the present invention, the described workplace of dull and stereotyped 12 is vertically installed with three the first clock gauges 13, and described three the first clock gauges 13 are along the workplace horizontal homogeneous interval layout of dull and stereotyped 12.
In embodiments of the present invention, described dull and stereotyped 12 poly (methyl methacrylate) plate is adopted.
In embodiments of the present invention, described concrete bearing platform 2 is whole casting concrete cushion cap, and described concrete bearing platform 2 is fixed on ground through earth anchor screw rod 15.
In embodiments of the present invention, a kind of ancient building pin topple distortion load measurement mechanism add load measuring method, comprise any one ancient building pin as described above topple distortion load measurement mechanism, comprise following steps:
(1) measured ancient building pin 1 is vertically placed on concrete bearing platform 2 reposefully, described concrete bearing platform 2 is fixed on ground through earth anchor screw rod 15, and add that temporary lateral support ensures that it can not topple in installation, calibration process at measured ancient building pin 1 periphery, several draw rings 4 are welded on steel bushing 3 lateral wall equably, and described steel bushing 3 is set in measured ancient building pin 1 top;
(2) described upper steel strand wires 5 head end is bundled on each draw ring 4, described upper steel strand wires 5 end is bound with force snesor 6 one working end and is connected, described another working end of force snesor 6 is bound with lower steel strand wires 7 head end in order to calibrate and is connected, described lower steel strand wires 7 end is bound with extension spring 8 one working end and is connected, described another working end of extension spring 8 is welded with calibration screw 9 head end, and described calibration screw 9 is anchored through nut 10 and is fixed in earth anchor hole;
(3) calibration screw 9 is regulated, by extension spring 8, drawing stress is applied to upper steel strand wires 5, lower steel strand wires 7, and read out applied pulling force reading by force snesor 6, when the data consistent of institute's force sensor 6, namely think that measured ancient building pin 1 reaches equilibrium state, the temporary lateral support of now dismantling around measured ancient building pin 1, and can calculate by the reading of upper steel strand wires 5 and measured ancient building pin 1 angulation and force snesor 6 vertical tension that measured ancient building pin 1 bears and be capital axle power;
(4) direction of toppling of measured ancient building pin 1 is determined, a flat board 12 is sticked respectively in measured ancient building pin 1 shaft both sides, the described workplace of dull and stereotyped 12 parallels with direction of toppling, and on the described workplace of dull and stereotyped 12, be vertically installed with three the first clock gauges 13, and described three the first clock gauges 13 are along the workplace horizontal homogeneous interval layout of dull and stereotyped 12, topple in process at measured ancient building pin 1, the angle of the torsion of measured ancient building pin 1 and plane outer incline can be derived by the reading reading the first clock gauge 13, judge whether the direction of toppling of measured ancient building pin 1 deflects, described dull and stereotyped 12 can adopt poly (methyl methacrylate) plate,
(5) when loading beginning, choose a draw ring 4 paralleled with direction of toppling, and on described draw ring 4, additionally bind steel strand wires as loading steel strand wires 11, and the horizontal tilt amount of the column cap of measured ancient building pin 1 is read at measured ancient building pin 1 column cap place erection one second clock gauge 14, the operative orientation of described second clock gauge 14 also parallels with direction of toppling, and reaches by drawing described loading steel strand wires 11 loading that measured ancient building pin 1 topples.
The present invention is not limited to above-mentioned preferred forms, and anyone can show that under enlightenment of the present invention other various forms of ancient building pins topple to be out of shape and load measurement mechanism and measuring method thereof.All equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (5)
1. an ancient building pin topples to be out of shape and loads measurement mechanism, it is characterized in that: comprise the concrete bearing platform in order to fixing measured ancient building pin bottom of vertically placing, and in order to be set in the steel bushing of measured ancient building wood column top, described steel bushing periphery wall circumferentially has several draw rings uniformly at intervals, each draw ring is all bound, pull out the upper steel strand wires in order to calibration, described upper steel strand wires and force snesor, lower steel strand wires, extension spring, calibration screw is linked in sequence from top to bottom successively, described calibration screw is arranged with the nut in order to be anchored in earth anchor hole, also comprise drawing measured ancient building pin toward the loading steel strand wires of direction run-off the straight rotation of toppling, the flat board being separately positioned on measured ancient building pin shaft both sides, at least one first clock gauge perpendicular to the setting of plate work face and the second clock gauge being erected at measured ancient building pin column cap place, the workplace of described flat board, the operative orientation of the second clock gauge all parallel with direction of toppling.
2. ancient building pin according to claim 1 topples to be out of shape and loads measurement mechanism, it is characterized in that: described plate work face is vertically installed with three the first clock gauges, and described three the first clock gauges is arranged along horizontal homogeneous interval, plate work face.
3. ancient building pin according to claim 1 topples to be out of shape and loads measurement mechanism, it is characterized in that: described flat board adopts poly (methyl methacrylate) plate.
4. ancient building pin according to claim 1 topples to be out of shape and loads measurement mechanism, it is characterized in that: described concrete bearing platform is whole casting concrete cushion cap, and described concrete bearing platform is fixed on ground through earth anchor screw rod.
5. ancient building pin topple distortion load measurement mechanism add a load measuring method, any one the ancient building pin comprised as described in claim 1 ~ 4 topple distortion load measurement mechanism, it is characterized in that, comprise following steps:
(1) measured ancient building pin is vertically placed on concrete bearing platform reposefully, described concrete bearing platform is fixed on ground through earth anchor screw rod, and add that temporary lateral support ensures that it can not topple in installation, calibration process at measured ancient building pin periphery, some draw rings are welded on steel bushing lateral wall equably, and described steel bushing is set in measured ancient building wood column top;
(2) described upper steel strand wires head end is bundled on each draw ring, described upper steel strand wires end is bound with force snesor one working end and is connected, another working end of described force snesor is bound with the lower steel strand wires head end in order to calibrate and is connected, described lower steel strand wires end is bound with extension spring one working end and is connected, another working end of described extension spring is welded with calibration screw head end, and described calibration screw is anchored through nut and is fixed in earth anchor hole;
(3) calibration screw is regulated, come to apply drawing stress to upper and lower steel strand wires by extension spring, and read out applied pulling force reading by force snesor, when the data consistent of institute's force sensor, namely think that measured ancient building pin reaches equilibrium state, the temporary lateral support of now dismantling around measured ancient building pin, and can calculate by the reading of upper steel strand wires and measured ancient building pin angulation and force snesor the vertical tension that measured ancient building pin bears and be capital axle power;
(4) direction of toppling of measured ancient building pin is determined, a flat board is sticked respectively in measured ancient building pin shaft both sides, described plate work face parallels with direction of toppling, and three the first clock gauges are vertically installed with on described plate work face, and described three the first clock gauges are arranged along horizontal homogeneous interval, plate work face, topple in process at measured ancient building pin, the angle of the torsion of measured ancient building pin and plane outer incline can be derived by the reading reading the first clock gauge, judge whether the direction of toppling of measured ancient building pin deflects,
(5) when loading beginning, choose a draw ring paralleled with direction of toppling, and on described draw ring, additionally bind steel strand wires as loading steel strand wires, and the horizontal tilt amount of measured ancient building pin column cap is read at measured ancient building pin column cap place erection one second clock gauge, the operative orientation of described second clock gauge also parallels with direction of toppling, and reaches by drawing described loading steel strand wires the loading that measured ancient building pin topples.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510886530.5A CN105319082B (en) | 2015-12-07 | 2015-12-07 | Ancient building pin, which topples, deforms loading measurement apparatus and its loading measuring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510886530.5A CN105319082B (en) | 2015-12-07 | 2015-12-07 | Ancient building pin, which topples, deforms loading measurement apparatus and its loading measuring method |
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| CN106501083A (en) * | 2016-12-12 | 2017-03-15 | 兰州理工大学 | Large scale structure multiple spot ground anchor type drag-line charger and test method |
| CN109357840A (en) * | 2018-12-15 | 2019-02-19 | 浙江禾城工程管理有限公司 | A kind of pin topples deformation load measuring device |
| CN110567737A (en) * | 2018-06-05 | 2019-12-13 | 深圳光启尖端技术有限责任公司 | Equivalent wind load loading method |
| CN115492418A (en) * | 2022-10-12 | 2022-12-20 | 上海建为历保科技股份有限公司 | Correcting process for displaced members |
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Cited By (4)
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| CN105319082B (en) | 2017-11-17 |
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