CN209745698U - Reaction frame for fan embedded foundation bearing capacity test - Google Patents
Reaction frame for fan embedded foundation bearing capacity test Download PDFInfo
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- CN209745698U CN209745698U CN201920207980.0U CN201920207980U CN209745698U CN 209745698 U CN209745698 U CN 209745698U CN 201920207980 U CN201920207980 U CN 201920207980U CN 209745698 U CN209745698 U CN 209745698U
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Abstract
The utility model discloses a reaction frame for pre-buried basis bearing capacity of fan is experimental, including two spinal branch supporting beam, seted up the third through-hole on two spinal branch supporting beam lower extreme demountable installation's the base, there are two crossbeams both sides through second connecting bolt and second connecting nut demountable installation around two spinal branch supporting beam, and the lower extreme of two crossbeams has the loading platform through third connecting bolt and third connecting nut demountable installation, compares with prior art, the beneficial effects of the utility model are that: the worker can assemble supporting beam, base, crossbeam and loading platform into reaction frame wholly fast before experimental to act on the position that makes reaction frame on the base through earth anchor and balancing weight and fix, can guarantee the structural stability of reaction frame when the atress when experimental, guarantee experimental normal clear, can be quick after experimental the reaction frame decompose into crossbeam, supporting beam and base isotructure, portable transport.
Description
Technical Field
The utility model relates to a steel packing technical field specifically is a reaction frame that is used for pre-buried basic bearing capacity of fan to test.
Background
In the tunnel supporting structure engineering, the jet fan is installed at the later stage by embedding the steel plate in the supporting structure, so that the tunnel is ventilated, and harmful gases such as automobile exhaust in the tunnel are reduced conveniently. The installation stability of a tunnel jet fan is one of key control factors of tunnel operation safety, it is very important to detect and evaluate whether the anti-pulling bearing capacity of a jet fan embedded steel plate can meet the use and specification requirements, the tunnel fan embedded foundation pull-out test is a main detection method at present, the traditional test method is to apply counter force on the local part of a lining, the integral stress condition of the lining is not considered, the counter force condition is not consistent with the integral stress state of the lining, a counter force frame needs to be installed at the top in a tunnel in the traditional test method, the installation process is complex and troublesome, and the structural stability of the counter force frame in the test process cannot be ensured, so that the counter force frame for the fan embedded foundation bearing capacity test is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reaction frame that is used for the pre-buried basic bearing capacity of fan experimental to solve the problem that provides among the above-mentioned background art.
A reaction frame for a fan pre-buried foundation bearing capacity test comprises two supporting beams, a second connecting bolt and a third connecting bolt, wherein each supporting beam comprises a front side plate, a rear side plate and a connecting rib for connecting the middle positions of the two side plates, the cross section of each supporting beam is I-shaped, the structural stability of each supporting beam is guaranteed, the lower ends of the two supporting beams can be detachably provided with a base, the base is provided with a plurality of third through holes, the side plates on the front side and the rear side of each supporting beam are continuously provided with a plurality of first through holes from top to bottom, the front side and the rear side of each supporting beam are respectively provided with a cross beam, each cross beam comprises an upper horizontal plate, a lower horizontal plate and a connecting plate for connecting one end of each horizontal plate, the cross section of each cross beam is in a concave shape, the left end and the right end of each connecting plate of each cross, the end part of the second connecting bolt is in threaded connection with a second connecting nut, and the cross beam and the supporting beam are connected through the second connecting bolt and the second connecting nut, so that the mounting and the dismounting between the cross beam and the supporting beam are facilitated;
Two the lower extreme of crossbeam is provided with the loading platform, and the lower extreme of loading platform is used for installing hydraulic jack, set up the fifth through-hole in the middle of the lower extreme horizontal plate of crossbeam, be located set up the seventh through-hole on the loading platform of fifth through-hole lower extreme, supreme seventh through-hole and the fifth through-hole of passing are followed to the third connecting bolt, and the tip spiro union of third connecting bolt has third coupling nut, is connected with the third coupling nut through the third connecting bolt between loading platform and two crossbeams, the installation and the dismantlement between loading platform and two crossbeams of being convenient for.
Preferably, install two splint that are parallel to each other perpendicularly in the middle of the upper end of base, a supporting beam's splice bar lower extreme inserts between two splint, a plurality of second through-hole has been seted up to the lower extreme of splice bar, is located the fourth through-hole has been seted up on the splint of second through-hole both sides, inboard the surface of splint is provided with first connecting bolt, first connecting bolt passes fourth through-hole and second through-hole, just first connecting bolt's tip spiro union has first coupling nut, and first connecting bolt and first coupling nut are connected two splint and the splice bar between them, are convenient for a supporting beam and the installation and the dismantlement of base.
preferably, the base is provided with a counterweight groove, and a user can improve the stability of the reaction frame by stacking counterweight blocks in the counterweight groove.
Preferably, a plurality of connecting rods are connected between the upper horizontal plate and the lower horizontal plate of the cross beam, so that the structural stability of the cross beam is improved.
Preferably, the upper surface of the horizontal plate at the lower end of the cross beam is provided with a level ruler, so that whether the cross beam is in a horizontal state or not can be observed conveniently, and adjustment can be performed.
Compared with the prior art, the beneficial effects of the utility model are that: a third through hole is formed in a base which is detachably mounted at the lower ends of two supporting beams, two cross beams are detachably mounted on the front and back sides of the two supporting beams through second connecting bolts and second connecting nuts, a loading platform is detachably mounted at the lower ends of the two cross beams through third connecting bolts and third connecting nuts, so that an operator can quickly assemble the two supporting beams, the two bases, the two cross beams and the loading platform into a reaction frame whole before testing, the position of the reaction frame is fixed by acting on the bases through ground anchors and balancing weights, then a jack is mounted at the lower end of the loading platform, a downward telescopic end of the jack is connected with the loading cross beam penetrating through a lifting ring through a steel wire rope, the lifting ring is connected with a pre-buried foundation of a fan, the jack extends downwards to provide uniform downward force for the pre-buried foundation of the fan during testing, and meanwhile, upward reaction force of the jack acts on the reaction frame, the stable connection among the cross beam, the supporting beam and the base and the ground can ensure the structural stability of the counterforce frame when stressed, ensure the normal running of the test, and can quickly decompose the counterforce frame into the structures such as the cross beam, the supporting beam and the base by simply disassembling bolts and nuts after the test is finished, thereby being convenient for carrying and carrying; meanwhile, the cross section form of the fan embedded foundation is not required to be considered when the reaction frame is used, all the fan embedded foundations in tunnels with different structural forms can be detected, and the application range is wide.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the top view of the connection between the supporting beam and the cross beam;
Fig. 3 is a right structural sectional view of the junction between the cross beam and the loading platform of the present invention;
Fig. 4 is a front view structural section of the junction between the support beam and the base according to the present invention.
In the figure: 1. the support beam, 11, the curb plate, 111, first through-hole, 12, the splice bar, 121, the second through-hole, 2, the base, 201, the third through-hole, 202, the counter weight groove, 21, the splint, 211, the fourth through-hole, 3, first connecting bolt, 31, first connecting nut, 4, the crossbeam, 41, the horizontal plate, 411, the fifth through-hole, 42, the connecting plate, 421, the sixth through-hole, 5, the second connecting bolt, 51, the second connecting nut, 6, the loading platform, 601, the seventh through-hole, 7, the third connecting bolt, 71, the third connecting nut, 8, the connecting rod, 9, the level bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a reaction frame for a fan embedded foundation bearing capacity test comprises two supporting beams 1, a second connecting bolt 5 and a third connecting bolt 7, wherein each supporting beam 1 comprises a front side plate and a rear side plate 11 and a connecting rib 12 connecting the middle positions of the two side plates 11, the cross section of each supporting beam 1 is I-shaped, the structural stability of each supporting beam 1 is guaranteed, the lower ends of the two supporting beams 1 are detachably provided with a base 2, two parallel clamping plates 21 are vertically arranged in the middle of the upper end of the base 2, the lower end of each connecting rib 12 of each supporting beam 1 is inserted between the two clamping plates 21, the lower end of each connecting rib 12 is provided with a plurality of second through holes 121, the clamping plates 21 positioned at the two sides of each second through hole 121 are provided with fourth through holes 211, the surface of the clamping plate 21 at the inner side is provided with a first connecting bolt 3, and the first connecting bolt 3 penetrates through the fourth through holes 211 and, and the end part of the first connecting bolt 3 is screwed with a first connecting nut 31, and the two clamping plates 21 and the connecting ribs 12 between the two clamping plates are connected by the first connecting bolt 3 and the first connecting nut 31, so that the supporting beam 1 and the base 2 can be conveniently installed and detached.
A plurality of third through holes 201 are formed in the base 2, a counterweight groove 202 is formed in the base 2, and a user can stack counterweight blocks into the counterweight groove 202 to improve the stability of the reaction frame; the side plates 11 on the front side and the rear side of the supporting beam 1 are continuously provided with a plurality of first through holes 111 from top to bottom, the front side and the rear side of each supporting beam 1 are respectively provided with a cross beam 4, each cross beam 4 comprises an upper horizontal plate 41 and a lower horizontal plate 41 and a connecting plate 42 which is connected with one end of each horizontal plate 41, the cross section of each cross beam 4 is in a concave shape, a plurality of connecting rods 8 are connected between the upper horizontal plate 41 and the lower horizontal plate 41 of each cross beam 4, and the structural stability of each cross beam; a horizontal ruler 9 is arranged on the upper surface of a horizontal plate 41 at the lower end of the cross beam 4, so that whether the cross beam 4 is in a horizontal state or not can be observed conveniently and adjusted; sixth through-hole 421 has been seted up at both ends about the connecting plate 42 of crossbeam 4, second connecting bolt 5 inwards passes sixth through-hole 421 and first through-hole 111, just second connecting bolt 5's tip spiro union has second coupling nut 51, is connected through second connecting bolt 5 and second coupling nut 51 between crossbeam 4 and the supporting beam 1, the installation and the dismantlement between crossbeam 4 and the supporting beam 1 of being convenient for.
The lower ends of the two cross beams 4 are provided with loading platforms 6, the loading platforms 6 are used for installing oil jacks, a fifth through hole 411 is formed in the middle of a horizontal plate 41 at the lower end of each cross beam 4, a seventh through hole 601 is formed in the loading platform 6 at the lower end of the fifth through hole 411, a third connecting bolt 7 penetrates through the seventh through hole 601 and the fifth through hole 411 from bottom to top, a third connecting nut 71 is screwed at the end of the third connecting bolt 7, and the loading platforms 6 are connected with the two cross beams 4 through the third connecting bolt 7 and the third connecting nut 71, so that the loading platforms 6 and the two cross beams 4 can be conveniently installed and detached; an operator can quickly assemble two supporting beams 1, two bases 2, two cross beams 4 and a loading platform 5 into a reaction frame whole before testing, the reaction frame is fixed by acting on the bases 2 through an earth anchor and a balancing weight, then a jack is installed at the lower end of the loading platform 6, the downward telescopic end of the jack is connected with the loading cross beam penetrating through a lifting ring through a steel wire rope, the lifting ring is connected with a fan embedded foundation, the jack stretches downwards to give a uniform downward force to the fan embedded foundation during testing, meanwhile, the upward reaction force of the jack acts on the reaction frame, the structural stability of the reaction frame under stress can be guaranteed through stable connection between the cross beams 4, the supporting beams 1, the bases 2 and the ground, normal testing is guaranteed, and the reaction frame can be quickly decomposed into the cross beams 4, the cross beams 4 and the loading cross beams 5 through simple disassembly of bolts and nuts after testing is finished, The supporting beam 1, the base 2 and the like are convenient to carry and carry; meanwhile, the cross section form of the fan embedded foundation is not required to be considered when the reaction frame is used, all the fan embedded foundations in tunnels with different structural forms can be detected, and the application range is wide.
The working principle is as follows: the utility model discloses when using, through first connecting bolt 3 and first connecting nut 31, second connecting bolt 5 and second connecting nut 51, third connecting bolt 7 and third connecting nut 71 with two spinal branch supporting beam 1, two bases 2, two crossbeams 4 and loading platform 5 assemble into reaction frame wholly, put the reaction frame under the pre-buried basis of fan, insert in the ground through passing third through-hole 201 with the earth anchor, put into counterweight groove 202 with the balancing weight, make the rigidity of reaction frame, install the jack at loading platform 6 lower extreme again, pass through wire rope with the loading crossbeam that passes rings and be connected with the pre-buried basis of fan, rings and the pre-buried basis of fan are connected, stretch out downwards through the jack when experimental for the pre-buried basis of fan even decurrent power of a fan, the ascending reaction force of jack is used in the reaction frame simultaneously, through crossbeam 4, The stable connection between the supporting beam 1 and the base 2 and the ground can ensure the structural stability of the counterforce frame when stressed, and ensure the normal operation of the test.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a reaction frame for pre-buried basic bearing capacity of fan is experimental, includes two spinal branch supporting beam (1), second connecting bolt (5) and third connecting bolt (7), its characterized in that: the supporting beams (1) comprise a front side plate and a rear side plate (11) and a connecting rib (12) connecting the middle positions of the two side plates (11), the lower ends of the two supporting beams (1) can be detachably provided with bases (2), a plurality of third through holes (201) are arranged on the base (2), a plurality of first through holes (111) are continuously arranged on the side plates (11) at the front side and the rear side of the supporting beam (1) from top to bottom, the front side and the rear side of the two supporting beams (1) are respectively provided with a crossbeam (4), the beam (4) comprises an upper horizontal plate (41) and a lower horizontal plate (41) and a connecting plate (42) which is connected with one end of the two horizontal plates (41), the left end and the right end of the connecting plate (42) of the cross beam (4) are provided with sixth through holes (421), the second connecting bolt (5) penetrates through the sixth through hole (421) and the first through hole (111) inwards, the end part of the second connecting bolt (5) is in threaded connection with a second connecting nut (51);
two the lower extreme of crossbeam (4) is provided with loading platform (6), fifth through-hole (411) have been seted up in the middle of the lower extreme horizontal plate (41) of crossbeam (4), are located seventh through-hole (601) have been seted up on loading platform (6) of fifth through-hole (411) lower extreme, supreme seventh through-hole (601) and fifth through-hole (411) are passed down in third connecting bolt (7), and the tip spiro union of third connecting bolt (7) has third coupling nut (71).
2. The reaction frame for the fan embedded foundation bearing capacity test according to claim 1, characterized in that: install two splint (21) that are parallel to each other perpendicularly in the middle of the upper end of base (2), insert between two splint (21) connecting rib (12) lower extreme of a supporting beam (1), a plurality of second through-hole (121) have been seted up to the lower extreme of connecting rib (12), are located fourth through-hole (211), inboard have been seted up on splint (21) of second through-hole (121) both sides the surface of splint (21) is provided with first connecting bolt (3), first connecting bolt (3) pass fourth through-hole (211) and second through-hole (121), just the tip spiro union of first connecting bolt (3) has first coupling nut (31).
3. The reaction frame for the fan embedded foundation bearing capacity test according to claim 1, characterized in that: the base (2) is provided with a counterweight groove (202).
4. The reaction frame for the fan embedded foundation bearing capacity test according to claim 1, characterized in that: a plurality of connecting rods (8) are connected between the upper horizontal plate (41) and the lower horizontal plate (41) of the cross beam (4).
5. The reaction frame for the fan embedded foundation bearing capacity test according to claim 1 or 4, characterized in that: and a horizontal ruler (9) is arranged on the upper surface of a horizontal plate (41) at the lower end of the cross beam (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920207980.0U CN209745698U (en) | 2019-02-19 | 2019-02-19 | Reaction frame for fan embedded foundation bearing capacity test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920207980.0U CN209745698U (en) | 2019-02-19 | 2019-02-19 | Reaction frame for fan embedded foundation bearing capacity test |
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| CN209745698U true CN209745698U (en) | 2019-12-06 |
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| CN201920207980.0U Active CN209745698U (en) | 2019-02-19 | 2019-02-19 | Reaction frame for fan embedded foundation bearing capacity test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752239A (en) * | 2019-02-19 | 2019-05-14 | 辽宁省交通规划设计院有限责任公司 | A kind of reaction frame for blower embedded foundation load carrying capacity test |
-
2019
- 2019-02-19 CN CN201920207980.0U patent/CN209745698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752239A (en) * | 2019-02-19 | 2019-05-14 | 辽宁省交通规划设计院有限责任公司 | A kind of reaction frame for blower embedded foundation load carrying capacity test |
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