CN103698148B - Surface deformation resistance experimental method for self-balance portal - Google Patents
Surface deformation resistance experimental method for self-balance portal Download PDFInfo
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- CN103698148B CN103698148B CN201310724853.5A CN201310724853A CN103698148B CN 103698148 B CN103698148 B CN 103698148B CN 201310724853 A CN201310724853 A CN 201310724853A CN 103698148 B CN103698148 B CN 103698148B
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- door frame
- bottom girder
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Abstract
The invention discloses a kind of surface deformation resistance experimental method for self-balance portal, belong to construction engineering technical field.First method of the present invention makes door frame back timber, door frame post I, door frame post II and door frame bottom girder be rigidly connected into self-equilibrating portal-framed structure, then, accommodation space is had at door frame bottom girder internal production, top flange makes the long slot bore connected with accommodation space, accommodation space, built with multiple vertical deformation device, forms non-uniform settling space; Then, door frame bottom girder is connected and fixed by earth anchor and ground; Then, test component is positioned over the long slot bore place of door frame bottom girder top flange, the upper end of multiple vertical deformation device is linked to be a horizontal plane at initial position and forms support; Then test component is loaded, regulate the staggered lifting of multiple vertical deformation device simultaneously, simulation earth's surface non-uniform settling, realize earth's surface distortion to the experiment of superstructure impact.
Description
Technical field
The present invention relates to a kind of anti-earth's surface deformation experiment method, belong to construction engineering technical field.
Background technology
In recent years, the exploitation of China to subterranean resource and the utilization to the underground space just more and more frequent, the distortion such as earth's surface non-uniform settling are very easily caused as underground workss such as subway, tunnel and hypogees, and be in the impact owing to being subject to earth's surface non-uniform settling such as buildings, structures, water conservancy projects, electric power pylon on these underground works tops, directly threaten the structural safety of buildings, bring huge hidden danger to human life and property; Can also normally use by these buildingss, structures, water conservancy projects, electric power pylon etc. under earth's surface non-uniform settling affects simultaneously? there is which structural compromise? how is damaged degree? how to repair? etc. series of problems be worth us to go further investigated to study.
The test unit of a set of closing to reality engineering is not also had to meet with the test method of the rear internal force of earth's surface distortion, distortion Variation Features in order to simulate superstructure in prior art.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the invention provides a kind of surface deformation resistance experimental method for self-balance portal, make simple, implement quick, be applicable to the experiment of superstructure internal force change under the deformation condition of laboratory simulation earth's surface, deformation characteristics.
The present invention is achieved through the following technical solutions: a kind of surface deformation resistance experimental method for self-balance portal,
First make door frame back timber, door frame post I, door frame post II and door frame bottom girder be rigidly connected into self-equilibrating portal-framed structure, described door frame bottom girder is the girder construction comprising top flange and lower flange; Then, have accommodation space at door frame bottom girder internal production, described top flange makes the long slot bore connected with described accommodation space, accommodation space, built with multiple vertical deformation device, forms non-uniform settling space; Then, described top flange and lower flange there is bolthole, ground has multiple earth anchor hole, door frame bottom girder is connected and fixed by earth anchor and ground; Then, test component is positioned over the long slot bore place of door frame bottom girder top flange, the upper end of multiple vertical deformation device is linked to be a horizontal plane at initial position and forms support; Then test component is loaded, regulate the staggered lifting of multiple vertical deformation device simultaneously, simulation earth's surface non-uniform settling, realize earth's surface distortion to the experiment of superstructure impact.
Be fixed on by charger on described door frame back timber, vertically load to test component, under realizing vertical uniform load q, the deformation test of structure anti-earth's surface is studied.
Be fixed on by charger on described door frame post I or door frame post II, to test component horizontal addload, under realizing horizontal direction load action, the deformation test of structure anti-earth's surface is studied.
Be fixed on by charger on described door frame back timber, also fix charger simultaneously on described door frame post I or door frame post II, load simultaneously to test component, realization vertically loading, horizontal direction load effect lower structure anti-earth's surface deformation test simultaneously and study.
When test component is loaded, when loading size <500KN, tuck in pin without the need to being fixed with in the junction, inner side of described door frame back timber, door frame post I, door frame post II and door frame bottom girder; When loading size >=500KN, must be fixed with in the junction, inner side of described door frame back timber, door frame post I, door frame post II and door frame bottom girder and tucking in pin.
Described pin of tucking in be formed by connecting " L " shape connector by tucking in socle I and tucking in socle II perpendicular rigid, the connecting end surface I tucked in outside socle I forms right angle corner with the connecting end surface II tucked in outside socle II, described connecting end surface I and connecting end surface II there is multiple connecting hole, by connecting end surface I and the dismountable junction being fixed on door frame back timber, door frame post I, door frame post II and door frame bottom girder of connecting end surface II during installation.
Described vertical deformation device is the lifting jack vertically arranged, and it comprises cylinder body and expansion link; Described cylinder body passes from described lower flange and connects on the ground, and the upper end of described expansion link is connected with the top board that can stretch out from described long slot bore, and multiple described lifting jack is arranged in a row or number row in described accommodation space.
Described long slot bore is coated with the cover plate edge of a wing, and the bottom on the cover plate edge of a wing has plate to stretch in described accommodation space, on pretreatment or after completing, is covered by long slot bore with the cover plate edge of a wing.
The invention has the beneficial effects as follows: self balancing device proposed by the invention anti-earth's surface deformation experiment method directly can apply the vertical or horizontal loading in top; Also directly deformation of bottom can be applied; Upper load and bottom deformation can be applied simultaneously.The invention solves the problems that deformation test research in anti-earth's surface faces at present, achieve the deformation experiment research of laboratory simulation superstructure anti-earth's surface.Ground settlement simulated experiment can be realized, the Control release of the positive negative curvature inflection in earth's surface can be realized.The present invention slots in the middle part of the self-equilibrating door frame bottom girder top flange of designed, designed, realizes non-uniform settling space, places vertical deformation device to the perforate of door frame bottom girder lower flange simultaneously, can realize simulation ground settlement non-uniform settling; Earth's surface distortion can be realized on the experiment of superstructure impact; Superstructure its internal force, test of distortion Variation Features under prominent chance earth's surface distortion (deformation feature) when normal operating condition can be realized; Top loading can be realized and be out of shape synchronous experiment with earth's surface, bottom.It is convenient that the present invention realizes in laboratory, simple structure, simple operation, can better model engineering reality.
Accompanying drawing explanation
The present invention is further described according to drawings and embodiments below.
Fig. 1 is that the present invention tests front device schematic diagram;
Fig. 2 is the vertical and horizontal direction loading structure resistance to deformation experimental study simultaneously schematic diagram of the present invention;
Fig. 3 is the present invention's vertical loading structure resistance to deformation experimental study schematic diagram;
Fig. 4 is horizontal direction loading structure resistance to deformation experimental study schematic diagram of the present invention;
Fig. 5 is door frame bottom girder vertical view of the present invention;
Fig. 6 is the A-A cut-open view of Fig. 5;
Fig. 7 is door frame bottom girder upward view of the present invention;
Fig. 8 is door frame bottom girder cover plate vertical view of the present invention;
Fig. 9 is the left view of Fig. 8;
Figure 10 is that the present invention tucks in leg structure schematic diagram;
Figure 10 a is that the present invention tucks in leg structure front view;
Figure 10 b is the left view of Figure 10 a;
Figure 10 c is the right view of Figure 10 a;
Figure 10 d is the vertical view of Figure 10 a;
Figure 11 is vertical deformation device schematic diagram of the present invention.
In figure, a-door frame back timber; B-door frame post I; C-door frame post II; D-door frame bottom girder; E-tucks in pin; E1, tuck in socle I, e2, tuck in socle II, e3, floor, e4, connecting end surface I, e5, connecting end surface II; F-vertical deformation device; F1, top board, f2, expansion link, f3, cylinder body; K-earth anchor hole; G-charger; S-test component;
1, top flange, 2, lower flange, 3, web, 4, through hole, 5, bolthole, 6, long slot bore, 7, stiffening rib, 8, plate, 9, the cover plate edge of a wing, 10, connecting hole.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
As shown in Figure 1 and Figure 2, a kind of surface deformation resistance experimental method for self-balance portal,
First make door frame back timber a, door frame post I b, door frame post II c and door frame bottom girder d be rigidly connected into self-equilibrating portal-framed structure, described door frame bottom girder d is the girder construction comprising top flange 1 and lower flange 2; Then, have accommodation space at door frame bottom girder d internal production, described top flange 1 makes the long slot bore 6 connected with described accommodation space, accommodation space, built with multiple vertical deformation device f, forms non-uniform settling space; Then, described top flange 1 and lower flange 2 there is bolthole 5, ground has multiple earth anchor hole k, door frame bottom girder d is connected and fixed by earth anchor and ground; Then, test component s is positioned over long slot bore 6 place of door frame bottom girder d top flange 1, test component s is this area loading experiment research common test component, and the upper end of multiple vertical deformation device f is linked to be a horizontal plane at initial position and forms support; Then test component s is loaded, regulate the staggered lifting of multiple vertical deformation device f simultaneously, simulation earth's surface non-uniform settling, realize earth's surface distortion to the experiment of superstructure impact.The edge of a wing, refers to plane or flat board in the present invention, as the upper and lower plane of door frame back timber, bottom girder, and the side plane of door frame post.Because door frame back timber, bottom girder, and the many employings of door frame post " work " tee beam shelf structure, the plane of above-mentioned position is stretched out to two edges place, therefore claims " edge of a wing ", by all planes and the slab construction of the above-mentioned position of edge of a wing acute pyogenic infection of finger tip.
As shown in Figure 3, be fixed on by charger g on described door frame back timber a, vertically load to test component s, under realizing vertical uniform load q, the deformation test of structure anti-earth's surface is studied.Charger g is the conventional charger of this area loading experiment research, as hydraulic cylinder.
As shown in Figure 4, be fixed on by charger g on described door frame post I b or door frame post II c, to test component s horizontal addload, under realizing horizontal direction load action, the deformation test of structure anti-earth's surface is studied.
As shown in Figure 2, charger g is fixed on described door frame back timber a, on described door frame post I b or door frame post II c, also fix charger g simultaneously, load to test component s simultaneously, realize vertically loading, horizontal direction loading effect lower structure anti-earth's surface deformation test research simultaneously.
As shown in Figure 1 and Figure 2, when test component s is loaded, when loading size <500KN, tuck in pin e without the need to being fixed with in the junction, inner side of described door frame back timber a, door frame post I b, door frame post II c and door frame bottom girder d; When loading size >=500KN, must be fixed with in the junction, inner side of described door frame back timber a, door frame post I b, door frame post II c and door frame bottom girder d and tucking in pin e.
As shown in Figure 10, the described pin e that tucks in be formed by connecting " L " shape connector by tucking in socle I e1 and tucking in socle II e2 perpendicular rigid, tuck in connecting end surface I e4 outside socle I e1 and tuck in the connecting end surface II e5 formation right angle corner outside socle II e2, described connecting end surface I e4 and connecting end surface II e5 there is multiple connecting hole 10, by dismountable for connecting end surface I e4 and connecting end surface II e5 junction being fixed on door frame back timber a, door frame post I b, door frame post II c and door frame bottom girder d during installation.Described tucking between socle I e1 and the inner side of tucking in socle II e2 is fixed with floor e3.
As shown in Fig. 1,11, described vertical deformation device f is the lifting jack vertically arranged, and it comprises cylinder body f3 and expansion link f2; Described cylinder body f3 passes from described lower flange 2 and connects on the ground, and the upper end of described expansion link f2 is connected with the top board f1 that can stretch out from described long slot bore 6, and multiple described lifting jack is arranged in a row or number row in described accommodation space.
As shown in Figure 8, Figure 9, described long slot bore 6 is coated with the cover plate edge of a wing 9, the bottom on the cover plate edge of a wing 9 has plate 8 to stretch in described accommodation space, on pretreatment or after completing, is covered by long slot bore 6 with the cover plate edge of a wing 9.
As shown in Fig. 5, Fig. 6, Fig. 7, described top flange 1 and lower flange 2 are tabular, web 3 is connected with between top flange 1 and lower flange 2, described top flange 1 and lower flange 2 there is bolthole 5, have multiple earth anchor hole k on the ground, the anchor hole can reserved by door frame bottom girder two ends as required during experiment realizes the fixing of door frame and earth's surface.Described lower flange 2 there is multiple through hole 4 passed through for lifting jack, there is the end plate be connected with described door frame post I b and door frame post II c at described top flange 1 and the two ends of lower flange 2, described top flange 1, lower flange 2 and end plate there is multiple connecting hole 10, for being connected with door frame other parts.
Described web 3 has twice, the vertical accommodation space of the multiple described vertical deformation device f of the accommodation described in being formed between twice web 3.Described web 3 and be fixed with multiple stiffening rib 7 between described top flange 1 and lower flange 2.
The present invention makes simply, it is quick to implement, and is applicable to the experiment of superstructure internal force change under the deformation condition of laboratory simulation earth's surface, deformation characteristics.
Claims (8)
1. a surface deformation resistance experimental method for self-balance portal, is characterized in that:
First make door frame back timber (a), door frame post I (b), door frame post II (c) and door frame bottom girder (d) be rigidly connected into self-equilibrating portal-framed structure, described door frame bottom girder (d) is the girder construction comprising top flange (1) and lower flange (2); Then, have accommodation space at door frame bottom girder (d) internal production, described top flange (1) is upper makes the long slot bore (6) connected with described accommodation space, and accommodation space, built with multiple vertical deformation device (f), forms non-uniform settling space; Then, described top flange (1) and lower flange (2) there is bolthole (5), ground has multiple earth anchor hole (k), door frame bottom girder (d) is connected and fixed by earth anchor and ground; Then, test component (s) is positioned over long slot bore (6) place of door frame bottom girder (d) top flange (1), the upper end of multiple vertical deformation device (f) is linked to be a horizontal plane at initial position and forms support; Then test component (s) is loaded, regulate the staggered lifting of multiple vertical deformation device (f) simultaneously, simulation earth's surface non-uniform settling, realize earth's surface distortion to the experiment of superstructure impact.
2. surface deformation resistance experimental method for self-balance portal according to claim 1, it is characterized in that: charger (g) is fixed on described door frame back timber (a), vertically load to test component (s), under realizing vertical uniform load q, the deformation test of structure anti-earth's surface is studied.
3. surface deformation resistance experimental method for self-balance portal according to claim 1, it is characterized in that: charger (g) is fixed on described door frame post I (b) or door frame post II (c), to test component (s) horizontal addload, under realizing horizontal direction load action, the deformation test of structure anti-earth's surface is studied.
4. surface deformation resistance experimental method for self-balance portal according to claim 1, it is characterized in that: charger (g) is fixed on described door frame back timber (a), on described door frame post I (b) or door frame post II (c), also fix charger (g) simultaneously, load to test component (s) simultaneously, realize vertically loading, horizontal direction loading effect lower structure anti-earth's surface deformation test research simultaneously.
5. the surface deformation resistance experimental method for self-balance portal according to claim 1 or 2 or 3 or 4, it is characterized in that: when test component (s) is loaded, when loading size <500KN, tuck in pin (e) without the need to being fixed with in the junction, inner side of described door frame back timber (a), door frame post I (b), door frame post II (c) and door frame bottom girder (d); When loading size >=500KN, must be fixed with in the junction, inner side of described door frame back timber (a), door frame post I (b), door frame post II (c) and door frame bottom girder (d) and tucking in pin (e).
6. surface deformation resistance experimental method for self-balance portal according to claim 5, it is characterized in that: described pin (e) of tucking in be formed by connecting " L " shape connector by tucking in socle I (e1) and tucking in socle II (e2) perpendicular rigid, the connecting end surface I (e4) tucking in socle I (e1) outside and the connecting end surface II (e5) tucking in socle II (e2) outside form right angle corner, described connecting end surface I (e4) and connecting end surface II (e5) there is multiple connecting hole (10), by connecting end surface I (e4) with connecting end surface II (e5) is dismountable is fixed on door frame back timber (a) during installation, door frame post I (b), the junction of door frame post II (c) and door frame bottom girder (d).
7. surface deformation resistance experimental method for self-balance portal according to claim 1, is characterized in that: described vertical deformation device (f) is the lifting jack vertically arranged, and it comprises cylinder body (f3) and expansion link (f2); Described cylinder body (f3) passes from described lower flange (2) and connects on the ground, the upper end of described expansion link (f2) is connected with the top board (f1) that can stretch out from described long slot bore (6), and multiple described lifting jack is arranged in a row or number row in described accommodation space.
8. surface deformation resistance experimental method for self-balance portal according to claim 1, is characterized in that:
Described long slot bore (6) is coated with the cover plate edge of a wing (9), and the bottom of the cover plate edge of a wing (9) has plate (8) to stretch in described accommodation space, on pretreatment or after completing, is covered by long slot bore (6) with the cover plate edge of a wing (9).
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| CN201310724853.5A CN103698148B (en) | 2013-12-24 | 2013-12-24 | Surface deformation resistance experimental method for self-balance portal |
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| CN201310724853.5A CN103698148B (en) | 2013-12-24 | 2013-12-24 | Surface deformation resistance experimental method for self-balance portal |
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| CN107315082A (en) * | 2017-07-24 | 2017-11-03 | 武汉理工大学 | A kind of many depression door model assay systems of three-dimensional array type |
| CN111678715B (en) * | 2020-06-19 | 2022-07-01 | 南京康尼机电股份有限公司 | Test device for simulating train body deformation and ramp inclination |
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| JP4297854B2 (en) * | 2004-09-14 | 2009-07-15 | 株式会社竹中工務店 | Load provision method |
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