CN103821061B - A kind of automobile safety collision test room is with drawing runway and construction in layer method thereof - Google Patents
A kind of automobile safety collision test room is with drawing runway and construction in layer method thereof Download PDFInfo
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- CN103821061B CN103821061B CN201410100166.0A CN201410100166A CN103821061B CN 103821061 B CN103821061 B CN 103821061B CN 201410100166 A CN201410100166 A CN 201410100166A CN 103821061 B CN103821061 B CN 103821061B
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Abstract
The invention provides a kind of automobile safety collision test room traction runway, comprise foundation trench, be arranged on the interconnective some groups of bracing or strutting arrangements in foundation trench, water the concrete layer cast between bracing or strutting arrangement and foundation trench, and be laid on the bitumen layer of concrete layer upper surface; Bracing or strutting arrangement comprises the height adjustment bracket being arranged on foundation trench bottom surface, be assemblied in the H bracing members mechanism above height adjustment bracket, be fixed in some H steel reinforcing ribs of H bracing members mechanism both sides, and one end is connected to H steel reinforcing rib, other end oblique cutting enters the constraint reinforcing bar of foundation trench; Concrete layer is divided into bottom concrete layer and middle part concrete layer two parts, and bottom concrete layer height is lower than the height of height adjustment bracket, and middle part concrete layer waters and casts from the concrete layer of bottom, and its teeming height is lower than H bracing members mechanism upper surface.Beneficial effect of the present invention: the planeness that can adjust traction runway step by step, in the superiors' asphalt, can carry out road surface reparation at any time, further ensure the accuracy of vehicle impact testing.
Description
Technical field
The present invention relates to vehicle impact testing technical field, particularly relate to a kind of automobile safety collision test room traction runway and construction in layer method thereof.
Background technology
Vehicle impact testing is the important means of research vehicle safety, and it can reappear the collision form of vehicle under most of traffic, has become the important way of test evaluation research on vehicle passive safety.In order to reproduce car crass form in test room, need by tested vehicle by the static impact velocity accelerating to regulation.For experimental safe object, vehicle impact testing must not rely on vehicle power and accelerate vehicle, but adopt the mode of traction to make vehicle reach the speed of regulation, for this reason, the design of impact test traction runway need consider the embedded traction track when pavement construction, is used for carrying the parts needed for traction drive system.Although there are many common ground vehicle impact testing room with industrial premises in building structure, but in testing track, there is its particularity to be, first, for meeting vehicle impact testing requirement traction landing airdrome length generally at 100-200 rice, and flatness requirement is had in the global extent of runway ground, second, embedded traction track is needed in the track elements of ground, on landing airdrome length direction, flatness requirement ± 10mm/5m and ± 2mm/2m two parameter indexs control, namely long-range index be within the scope of every 5m high process control at ± 10mm, short distance index be in 2 scopes high process control at ± 2mm.
With reference to general flooring construction technology, in conjunction with the requirement of embedded traction track, according to general disposable concreting moulding process, concrete in forming process due to the irregular honeycomb, pitted skin, the doghole problem that cause of vibrating, hardening process self-constriction problem, these uncontrollable factors will directly have influence on final ground flat degree, and this impact is unrepairable, and the inaccurate of impact test finally can be caused even cannot to carry out impact test.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of automobile safety collision test room traction runway and construction in layer method thereof, can adjust the planeness of traction runway step by step, reduce Problems existing in disposal pouring forming process.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of automobile safety collision test room traction runway, comprise foundation trench, be arranged on the interconnective some groups of bracing or strutting arrangements in foundation trench, water the concrete layer cast between described bracing or strutting arrangement and foundation trench, and be laid on the bitumen layer of described concrete layer upper surface;
Described bracing or strutting arrangement comprises the height adjustment bracket being arranged on foundation trench bottom surface, be assemblied in the H bracing members mechanism above height adjustment bracket, be fixed in some H steel reinforcing ribs of H bracing members mechanism both sides, and one end is connected to H steel reinforcing rib, other end oblique cutting enters the constraint reinforcing bar of described foundation trench;
Described concrete layer is divided into bottom concrete layer and middle part concrete layer two parts, and described bottom concrete layer height is lower than the height of described height adjustment bracket, and described middle part concrete layer waters and casts from the concrete layer of described bottom, and its teeming height is lower than described H bracing members mechanism upper surface.
Further, described height adjustment bracket comprises the lower supporting plate concordant with described foundation trench bottom surface, symmetry is fixed on this lower supporting plate and upper end and establishes threaded two supporting plates, be sleeved on the upper backup pad on supporting plate, and to be arranged on above upper backup pad and the positioning pressuring plate be sleeved on supporting plate, described upper backup pad lower end is provided with the setscrew nut being threaded onto described supporting plate upper end, is provided with the locking nut be threaded onto on described supporting plate above described positioning pressuring plate.
Further, the height of described bottom concrete layer is lower than the soffit of described upper backup pad.
Further, described H bracing members mechanism comprises two H steel be symmetricly set on upper backup pad, connected by connecting bolt between described H steel, and fixed by attaching nut, on described connecting bolt, cover has two cylinders, between described cylinder, be provided with spacing clip, under described H steel lower end is installed on positioning pressuring plate and by its compress.
Further, described middle part concrete layer teeming height is concordant with the upper end soffit of described H steel.
By technique scheme, achieve the gradual control of planeness, make whole runway there will not be planeness not reach the situation of requirement, simultaneously in the superiors' asphalt, road surface reparation can be carried out at any time, further ensure the accuracy of vehicle impact testing.
In order to better ensure the planeness of automobile safety collision testing track, the present invention also provides a kind of automobile safety collision test room construction in layer method of traction runway, comprises the following steps:
1) construction of foundation ditch: dig foundation trench under indoor terrace, length is 100-200m, and by the compacting of foundation trench bottom surface;
2) bottom construction: some height adjustment bracket are positioned in foundation trench, adjust the vertical height of its upper backup pad, make described upper backup pad maintenance level; Some constraint reinforcing bar one end oblique cutting is entered described foundation trench, casting bottom concrete layer in described foundation trench, teeming height is lower than the soffit of described upper backup pad;
3) middle level construction: some H bracing members mechanisms are placed on the upper backup pad of described height adjustment bracket, regulate straight degree and the planeness of adjacent H bracing members mechanism; The constraint reinforcing bar other end is fixed on H steel reinforcing rib; Casting middle part concrete layer in described foundation trench, teeming height is concordant with the upper end soffit of described H steel;
4) top layer construction: in described middle part concrete layer upper surface making bitumen layer, its height is concordant with the upper surface of described H bracing members mechanism.
Further, the dark 600mm of described foundation trench, its width is 3200mm.
Further, the straight degree of described adjacent H bracing members mechanism is adjusted by positioning pressuring plate; Described H bracing members mechanism planeness is adjusted by setscrew nut.
By construction in layer method of the present invention, it has the following advantages:
1, construction in layer method achieves the gradual control of planeness in work progress, by arranging bottom construction, middle level construction and top layer construction, ensure that the planeness of traction runway step by step, reducing the risk existed in disposal pouring forming process.
2, height adjustment bracket is adopted to achieve the successively control of planeness.The flatness requirement to height adjustment bracket in bottom construction is ensure that by height adjustment bracket lower supporting plate, the flatness requirement to H bracing members mechanism in the construction of middle level is ensure that by adjustment height adjustment bracket upper backup pad height, achieve the control of the planeness of traction runway step by step, solve the difficult problem that the planeness required precision in primary concreting molding construction technique of traction runway is difficult to ensure.
3, construction in layer is for the concrete of mass, controls the heat of hydration of concrete structure inside, and be convenient to heat radiation, component inside vibrates more closely knit, ensure that concrete construction quality.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is that the A-A of Fig. 1 of the present invention is to sectional view;
Fig. 3 is the structural representation of height adjustment bracket of the present invention;
Fig. 4 is the structural representation of H bracing members mechanism of the present invention;
In figure: 1-foundation trench; 2-height adjustment bracket; 3-H bracing members mechanism; 4-H steel reinforcing rib; 5-retrains reinforcing bar; 21-lower supporting plate; 22-supporting plate; 23-upper backup pad; 24-positioning pressuring plate; 25-setscrew nut; 26-locking nut; 31-H steel; 32-connecting bolt; 33-attaching nut; 34-cylinder; The spacing clip of 35-; I-bottom concrete layer; II-middle part concrete layer; III-bitumen layer;
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are illustrated:
A kind of automobile safety collision test room traction runway, its length can be arranged as required, the present embodiment is 100-200m, it comprises foundation trench 1, be provided with in foundation trench 1 and be interconnected some groups of bracing or strutting arrangements, between bracing or strutting arrangement and foundation trench 1, be cast with concrete layer, be equipped with bitumen layer III at concrete layer upper surface;
Wherein:
Bracing or strutting arrangement comprises the height adjustment bracket 2 being arranged on foundation trench 1 bottom surface, to be assemblied in above height adjustment bracket 2 and the H bracing members mechanism 3 be installed thereon, some H steel reinforcing ribs 4 are welded in H bracing members mechanism 3 both sides, H steel reinforcing rib 4 is welded with constraint reinforcing bar 5, the other end oblique cutting of this constraint reinforcing bar 5 enters foundation trench 1, main in order to ensure the straight degree of traction track in the vertical direction, prevent traction track in the behavior of course of work generation play;
Height adjustment bracket 2 comprises the lower supporting plate 21 be placed on foundation trench 1 bottom surface, symmetry is fixed in two supporting plates 22 on this lower supporting plate 21, this supporting plate 22 upper end is provided with screw thread, first on supporting plate 22, setscrew nut 25 is screwed on, afterwards upper backup pad 23 is sleeved on supporting plate 22, then on upper backup pad 23, positioning pressuring plate 24 is installed, location pressure 24 is also sleeved on supporting plate 22, supporting plate 22 screws in locking nut 26, by the upper-lower height regulating the setscrew nut 25 at two ends to adjust upper backup pad 23, it is finally made to keep level;
H bracing members mechanism 3 comprises two H steel 31 be symmetricly set on upper backup pad 23, and its lower end is installed on positioning pressuring plate 24 times and is compressed by it, can adjust the straight degree between adjacent H steel 31, and carry out the constraint of upper and lower displacement to H steel 31 by positioning pressuring plate 24; Through hole is provided with in H steel 31 middle and lower part, connecting bolt 32 makes to be connected symmetrically arranged H steel 31 through this through hole, and be fixed by attaching nut 33, on connecting bolt 32, cover has two cylinders 34, spacing clip 35 is provided with between cylinder 34, can be regulated by spacing clip 35 and cylinder 34 and retrain the spacing of two symmetrical H steel 31, ensure that the spacing of each H bracing members mechanism 3 on whole runway is the same.
Concrete layer comprises bottom concrete layer I and middle part concrete layer II two parts, wherein the teeming height of bottom concrete layer I is lower than the soffit of upper backup pad 23, and then can ensure that upper backup pad 23 can be adjustable after bottom concrete layer I casting completes, in the present embodiment, bottom concrete layer I builds thickness is 120mm; Middle part concrete layer II casts on bottom concrete layer I, and its teeming height is concordant with the upper end soffit of the H steel 31 of H bracing members mechanism 3, and in the present embodiment, it is built is highly 180mm.
In order to better ensure the planeness of automobile safety collision testing track, the present invention sets forth this automobile safety collision test room construction method of traction runway, and this method adopts construction in layer mode, specifically comprises the following steps:
1) construction of foundation ditch: first dig foundation trench 1 under indoor terrace, its length is 100-200m, and the degree of depth is 600mm, and width is 3200mm, in order to ensure follow-up flatness requirement, straight bottom foundation trench 1;
2) bottom construction: by arranging that height adjustment bracket 2 realizes the control of planeness in bottom construction, some height adjustment bracket 2 are positioned in foundation trench 1, the lower supporting plate 21 of height adjustment bracket 2 is paralleled with foundation trench 1 bottom surface, adjusted the vertical height of its gripper shoe 23 afterwards by setscrew nut 25, make upper backup pad 23 maintenance level; Again one end oblique cutting of some constraint reinforcing bars 5 is entered foundation trench 1, after adjusting height adjustment bracket 2 and constraint reinforcing bar 5, casting bottom concrete layer I in foundation trench 1, its teeming height is lower than the soffit of upper backup pad 23;
3) middle level construction: some H bracing members mechanisms 3 are placed on upper backup pad 23, regulate the straight degree between adjacent H steel 31 by positioning pressuring plate 24 and the vertical displacement of H steel 31 itself is retrained, the planeness of H steel 31 is regulated by setscrew nut 25, and by locking nut 26, it is fastening; The other end of constraint reinforcing bar 5 is welded on H steel reinforcing rib 4; After the planeness adjusting H bracing members mechanism 3, concrete layer II in the middle part of the top casting of foundation trench 1 inner bottom part concrete layer I, teeming height is concordant with the upper end soffit of H steel 31;
4) top layer construction: in middle part concrete layer II upper surface making bitumen layer III, this bitumen layer III is the road structure of pitch mixed material as surface layer, its height is concordant with the upper surface of H bracing members mechanism 3, and the placement thickness of the present embodiment medium pitch layer III is 20mm.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the scope of the invention change and improve, and all should still belong within this patent covering scope.
Claims (8)
1. an automobile safety collision test room traction runway, it is characterized in that: comprise foundation trench (1), be arranged on the interconnective some groups of bracing or strutting arrangements in foundation trench (1), water the concrete layer cast between described bracing or strutting arrangement and foundation trench (1), and be laid on the bitumen layer (III) of described concrete layer upper surface;
Described bracing or strutting arrangement comprises the height adjustment bracket (2) being arranged on foundation trench (1) bottom surface, be assemblied in the H bracing members mechanism (3) of height adjustment bracket (2) top, be fixed in some H steel reinforcing ribs (4) of H bracing members mechanism (3) both sides, and one end is connected to H steel reinforcing rib (4), other end oblique cutting enters the constraint reinforcing bar (5) of described foundation trench (1);
Described concrete layer is divided into bottom concrete layer (I) and middle part concrete layer (II) two parts, described bottom concrete layer (I) height is lower than the height of described height adjustment bracket (2), described middle part concrete layer (II) is watered and is cast from described bottom concrete layer (I), and its teeming height is lower than described H bracing members mechanism (3) upper surface.
2. a kind of automobile safety collision test room according to claim 1 traction runway, it is characterized in that: described height adjustment bracket (2) comprises the lower supporting plate (21) concordant with described foundation trench (1) bottom surface, symmetry is fixed in that this lower supporting plate (21) is upper and threaded two supporting plates (22) are established in upper end, be sleeved on the upper backup pad (23) on supporting plate (22), and be arranged on upper backup pad (23) top and the positioning pressuring plate (24) be sleeved on supporting plate (22), described upper backup pad (23) lower end is provided with the setscrew nut (25) being threaded onto described supporting plate (22) upper end, described positioning pressuring plate (24) top is provided with the locking nut (26) be threaded onto on described supporting plate (22).
3. a kind of automobile safety collision test room according to claim 2 traction runway, is characterized in that: the height of described bottom concrete layer (I) is lower than the soffit of described upper backup pad (23).
4. a kind of automobile safety collision test room according to claim 2 traction runway, it is characterized in that: described H bracing members mechanism (3) comprises two H steel (31) be symmetricly set on upper backup pad (23), connected by connecting bolt (32) between described H steel (31), and fixed by attaching nut (33), the upper cover of described connecting bolt (32) has two cylinders (34), between described cylinder (34), be provided with spacing clip (35), under described H steel (31) lower end is installed on positioning pressuring plate (24) and by its compress.
5. a kind of automobile safety collision test room according to claim 4 traction runway, is characterized in that: described middle part concrete layer (II) teeming height is concordant with the upper end soffit of described H steel (31).
6. an automobile safety collision test room construction in layer method for traction runway, is characterized in that: comprise the following steps:
1) construction of foundation ditch: dig foundation trench (1) under indoor terrace, length is 100-200m, and by foundation trench (1) bottom surface compacting;
2) bottom construction: be positioned in foundation trench (1) by some height adjustment bracket (2), adjust the vertical height of its upper backup pad (23), makes described upper backup pad (23) keep level; Some constraint reinforcing bar (5) one end oblique cutting is entered described foundation trench (1), casting bottom concrete layer (I) in described foundation trench (1), teeming height is lower than the soffit of described upper backup pad (23);
3) middle level construction: some H bracing members mechanisms (3) are placed on the upper backup pad (23) of described height adjustment bracket (2), regulate straight degree and the planeness of adjacent H bracing members mechanism (3); To retrain reinforcing bar (5) other end is fixed on H steel reinforcing rib (4); Casting middle part concrete layer (II) in described foundation trench (1), teeming height is concordant with the upper end soffit of described H steel (31);
4) top layer construction: described middle part concrete layer (II) upper surface making bitumen layer (III), its height is concordant with the upper surface of described H bracing members mechanism (3).
7. a kind of automobile safety collision test room according to claim 6 construction in layer method of traction runway, is characterized in that: the dark 600mm of described foundation trench (1), its width is 3200mm.
8. a kind of automobile safety collision test room according to claim 6 construction in layer method of traction runway, is characterized in that: the straight degree of described adjacent H bracing members mechanism (3) is adjusted by positioning pressuring plate (24); Described H bracing members mechanism (3) planeness is by setscrew nut (25) adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410100166.0A CN103821061B (en) | 2014-03-18 | 2014-03-18 | A kind of automobile safety collision test room is with drawing runway and construction in layer method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410100166.0A CN103821061B (en) | 2014-03-18 | 2014-03-18 | A kind of automobile safety collision test room is with drawing runway and construction in layer method thereof |
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| CN103821061A CN103821061A (en) | 2014-05-28 |
| CN103821061B true CN103821061B (en) | 2015-10-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105350574B (en) * | 2015-10-29 | 2017-03-08 | 江苏科技大学 | A kind of vehicle impact testing photography melt pit and construction method |
| CN105606330B (en) * | 2016-02-25 | 2018-05-22 | 江苏科技大学 | One kind is used for vehicle impact testing traction track |
| CN106524875A (en) * | 2016-11-22 | 2017-03-22 | 南通虹波机械有限公司 | Thin-wall mine pipeline detection device |
| CN114763983B (en) * | 2022-03-28 | 2023-10-20 | 中交第四航务工程局有限公司 | Base groove leveling positioning measurement method |
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