CN219825398U - Reaction frame device for detecting bearing capacity of inclined pile supporting structure - Google Patents
Reaction frame device for detecting bearing capacity of inclined pile supporting structure Download PDFInfo
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- CN219825398U CN219825398U CN202321023356.8U CN202321023356U CN219825398U CN 219825398 U CN219825398 U CN 219825398U CN 202321023356 U CN202321023356 U CN 202321023356U CN 219825398 U CN219825398 U CN 219825398U
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- 229910000831 Steel Inorganic materials 0.000 description 6
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Abstract
The utility model discloses a reaction frame device for detecting bearing capacity of a diagonal pile supporting structure, which relates to the technical field of pile foundation construction and comprises a stress beam erected on a plurality of vertical retaining piles, a supporting piece abutted with a jack and a connecting piece for connecting the stress beam and the vertical retaining piles; the support piece is rotatably arranged on the stress beam, a positioning component for fixing the position of the support piece is arranged on the stress beam, and the rotating shaft of the support piece is parallel to the length direction of the stress beam. The utility model has the effect of improving the construction efficiency of the reaction frame.
Description
Technical Field
The utility model relates to the technical field of pile foundation construction, in particular to a reaction frame device for detecting bearing capacity of a diagonal pile support structure.
Background
The static load test is a test method for applying vertical pressure, vertical pulling force or horizontal thrust on the pile top step by step and observing settlement, pulling displacement or horizontal displacement of the pile top along with time so as to determine corresponding vertical compression bearing capacity, vertical pulling bearing capacity or horizontal bearing capacity of a single pile.
When the bearing capacity of the pile is detected, the pile needs to be pressurized by means of a jack, and one end, far away from the pile, of the jack needs to be provided with a supporting structure (a counterforce frame) to provide counterforce. In the related art, the reaction frame is often a reaction force platform erected above the pile supporting structure, and a counterweight needs to be stacked above the platform as a load to provide a sufficient reaction force. Such reaction frame structures are commonly used for vertically mounting piles.
In the related art, referring to fig. 1, in the construction of a diagonal pile support, a row of vertical retaining piles 2 for supporting a ring beam structure and blocking soil are driven around the top of the diagonal pile support 1, and the vertical retaining piles are i-steel.
Aiming at the related technology, a plurality of counterweights are needed for guaranteeing enough reaction force for the reaction frame, the construction of the reaction frame is time-consuming and labor-consuming, and the inventor designs a reaction frame device for detecting the bearing capacity of a pile support structure based on the construction scene of the diagonal pile support.
Disclosure of Invention
In order to facilitate the construction of a reaction frame during the bearing capacity detection of the inclined pile support, the utility model provides the reaction frame device for the bearing capacity detection of the inclined pile support structure, which has the effects of no need of counterweight and more convenient construction of the reaction frame.
The utility model provides a reaction frame device for detecting bearing capacity of a diagonal pile support structure, which adopts the following technical scheme:
a reaction frame device for detecting bearing capacity of a diagonal pile supporting structure comprises a stress beam, a supporting piece and a connecting piece, wherein the stress beam is erected on a plurality of vertical retaining piles, the supporting piece is abutted with a jack, and the connecting piece is used for connecting the stress beam and the vertical retaining piles; the support piece is rotatably arranged on the stress beam, a positioning component for fixing the position of the support piece is arranged on the stress beam, and the rotating shaft of the support piece is parallel to the length direction of the stress beam.
By adopting the technical scheme, the stress beam is erected on the vertical retaining pile, the stress beam and the vertical retaining pile are connected by the connecting piece, and the vertical retaining pile is used for providing bearing capacity for the stress beam; the support piece of the abutting jack is rotatably arranged on the stressed beam, the support piece can be adjusted according to the angle of the inclined pile support, the support center of the support piece is parallel to the inclined pile support, the stress of the support piece can be optimized, and the reaction force of the jack is better acted on the whole stressed beam.
Optionally, the atress roof beam includes two sections box beam and fixes the load axle between two sections box beam, the one end of support piece corresponds the load axle and runs through and set up the shaft hole, support piece rotates the cover through the shaft hole and establishes on the load axle.
Through adopting above-mentioned technical scheme, rotate the support piece and install on the load axle, the effort of jack is transmitted to the load axle through the support piece, is transmitted to the box girder of both sides by the load axle again, and the atress of box girder is shared by the vertical retaining pile of its below.
Optionally, the positioning component comprises a mounting plate fixed on the box beam and positioning bolts screwed on the mounting plate, and the mounting plate and the positioning bolts are symmetrically arranged on two sides of the supporting piece.
By adopting the technical scheme, after the supporting piece is rotated to a proper angle, the supporting piece is clamped and fixed by using the positioning bolts at two sides, and then the supporting piece is fixed; after the jack is arranged between the supporting piece and the inclined pile support, the acting force of the jack is propped against the supporting piece, and the position of the supporting piece can be stabilized.
Optionally, the positioning component comprises a positioning plate and a positioning pin fixed on the box beam; the locating plate is provided with a plurality of locating holes in a penetrating mode, and the supporting piece is provided with fixing holes for penetrating locating pins.
Through adopting above-mentioned technical scheme, according to conventional stake angle of propping, set up the locating hole of corresponding angle on the locating plate, penetrate the locating pin in the fixed orifices on the support piece after passing corresponding locating hole, the angle fixing of support piece is more convenient and reliable.
Optionally, both ends of the connecting piece are respectively fixed on the flange plates of the stress beam and the vertical retaining pile through high-strength bolts.
Through adopting above-mentioned technical scheme, through the tip of high strength bolt fastening connecting piece, simple to operate, intensity is reliable. Before installing the connecting piece, according to the bolt mounting hole position on the connecting piece, set up the bolt mounting hole on the flange plate of vertical retaining pile.
Optionally, the box girder further comprises a girder base plate for adjusting the height of the box girder, and the girder base plate is arranged on the lower side of the box girder.
Through adopting above-mentioned technical scheme, adjust the height of box girder, cooperation support piece's angle modulation can also make support piece and stake support central axis alignment when making support piece and stake support central axis parallel. When the jack is arranged, the jack is arranged at the center of the upper end face of the inclined pile support and the center of the end face of the support piece, and the acting force of the jack can act on the load shaft in the middle.
Optionally, the device further comprises a pulling and pressing frame arranged at the upper part of the stress beam, wherein the pulling and pressing frame is opposite to the supporting piece; the tension and compression frame is connected with a pretension rope, and the other end of the pretension rope is fixed on a vertical retaining pile which is not covered by the stress beam; the prestretched ropes are symmetrically arranged on two sides of the tension and compression frame.
By adopting the technical scheme, the symmetrically arranged pre-tensioning ropes are utilized to symmetrically apply oblique downward pulling force to the two sides of the pulling and pressing frame, so that downward resultant force is formed.
Optionally, the tension and compression frame comprises two tension plates symmetrically fixed on the two box beams and a tie rod arranged between the two tension plates, and two ends of the tie rod are welded and fixed on the two tension plates.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. according to the reaction frame device for detecting the bearing capacity of the inclined pile supporting structure, the function of the reaction frame is realized by connecting the stressed beam with the vertical retaining pile on the construction site, the counterweight is not required to be stacked, the construction space is relatively wide, and the construction efficiency can be effectively improved;
2. the height of the box-shaped beam is adjusted by arranging the beam base plate so as to adjust the stress direction of the load shaft and optimize the stress of the load shaft;
3. the number of vertical retaining piles for providing reaction force for the stressed beam is increased by arranging the tension and compression frame and the pre-tensioning ropes on the stressed beam, and the bearing capacity of the stressed beam and the supporting piece is improved.
Drawings
FIG. 1 is a schematic view of a construction environment for a diagonal pile support to which the present utility model is applied;
FIG. 2 is a schematic view of the overall structure of the present utility model;
FIG. 3 is a schematic view of the cross-sectional A-A configuration of FIG. 2;
FIG. 4 is a schematic view of the structure of the additional beam shim plate;
fig. 5 is a schematic view of the installation structure of the reaction frame device when the vertical retaining pile is a cast-in-place pile.
Description of the drawings: 1. diagonal pile support; 2. vertical retaining piles; 3. a force beam; 4. a connecting piece; 5. a load shaft; 6. a support; 7. a pulling and pressing frame; 71. a pulled plate; 72. a cross pull rod; 8. pretensioning the rope; 9. a beam backing plate; 10. and (5) supporting the column.
Detailed Description
The utility model is described in further detail below with reference to fig. 2-4.
The embodiment of the utility model discloses a reaction frame device for detecting bearing capacity of a diagonal pile supporting structure, which comprises a stress beam 3, a supporting piece 6, a connecting piece 4, a tension and compression frame 7 and a pre-tensioning rope 8, and is described with reference to fig. 2.
Referring to fig. 2 and 3, the stress beam 3 comprises two sections of box beams and a load shaft 5 arranged between the two sections of box beams, the load shaft 5 is inserted into the end part of the box beams, and the axis of the load shaft 5 is arranged along the length direction of the box beams; the profile of support piece 6 is rectangular stand, and the shaft hole is offered in the one end penetration of support piece 6, and support piece 6 rotates the cover through the shaft hole and establishes on load axle 5.
Referring to fig. 3, by adjusting the angle of the supporting member 6, the diagonal pile support 1 is opposite to the supporting member 6, so that the jack disposed therebetween can apply force to the central axis of the load shaft 5, and the load shaft 5 is in a better stress state.
Referring to fig. 2, a positioning member is provided between the box beam and the support 6 to fix the angle of the support 6. The positioning component comprises a mounting plate fixed on the box beam by welding and a positioning bolt screwed on the mounting plate, and the positioning bolt penetrates through the mounting plate and is abutted with the side wall of the support piece 6; the mounting plate and the positioning bolts are symmetrically arranged on two sides of the support piece 6, and the support piece 6 is clamped and fixed through the two positioning bolts to fix the angle of the support piece 6. Setting the angles of several common supporting pieces 6 according to the angles of the common inclined pile struts 1, wherein the positioning component can also be arranged to comprise a positioning plate and a positioning pin which are welded and fixed on the box girder; the locating plate is provided with a plurality of locating holes in a penetrating way, the supporting piece 6 is provided with fixing holes penetrating the locating pins, the locating pins are inserted into different locating holes, and the supporting piece 6 is fixed at a set angle, so that the use is convenient.
The box girder is erected on the plurality of vertical retaining piles 2, and the box girder and the vertical retaining piles 2 are fixedly connected through the connecting pieces 4 so as to transmit the stress of the box girder to the vertical retaining piles 2. The connecting piece 4 is a metal plate, and two ends of the connecting piece 4 are detachably fixed on the side wall of the box beam and the flange plate of the vertical retaining pile 2 through high-strength bolts respectively, so that the installation is convenient.
The pulling and pressing frame 7 is arranged opposite to the supporting piece 6 and is positioned in the middle of the whole stressed beam 3; the tension and compression frame 7 comprises two tension plates 71 symmetrically fixed on the two box beams and a plurality of tie rods 72 arranged between the two tension plates 71, wherein the lower ends of the tension plates 71 are fixed on the box beams through bolts, the two ends of the tie rods 72 are welded and fixed on the two tension plates 71, and the tie rods 72 are parallel to each other.
The pre-tensioned rope 8 is arranged on the pull-receiving plate 71, and the pre-tensioned rope 8 is a steel rope; one end of the pretension rope 8 is anchored on the tension plate 71, the other end of the pretension rope 8 is fixed on the vertical retaining pile 2 which is not covered by the stress beam 3, and under the condition that the length of the stress beam 3 is not prolonged, the vertical retaining pile 2 which shares the stress of the stress beam 3 is increased, and the bearing capacity of the stress beam 3 is enhanced; the end parts of the pre-tensioned ropes 8 are welded and fixed with the vertical retaining piles 2; pretension ropes 8 are symmetrically arranged on two sides of the tension and compression frame 7.
Referring to fig. 4, a beam shim plate 9 is further included to raise the box beam by shimming the beam shim plate 9 between the box beam and the vertical retaining piles 2 to raise the load shaft 5 so that the central axis of the load shaft 5 is aligned with the center of the diagonal pile braces 1 to optimize the stress of the load shaft 5.
Referring to fig. 5, when the vertical retaining pile 2 of the circumferential side of the diagonal pile spreader 1 is a cast-in-place pile, the present utility model may be further configured to: the soil-retaining pile comprises a soil-retaining pile body, a supporting column (10), a stress beam (3) and a supporting column (10); the steel bar which is raised from the top end of the filling pile is used as a connecting piece 4, the steel bar is cut to the same height, the upper end of the steel bar is welded and fixed at the bottom of the box girder, and the steel bar is directly cut after the test is finished.
The embodiment of the utility model discloses a reaction frame device for detecting the bearing capacity of a diagonal pile support structure, which is implemented according to the following principle: on the one hand, the installation is convenient, a large number of counter weights are not required to be stacked, the lifting stress beam 3 is erected on the vertical retaining pile 2 and then is fixed by bolts and welded, and the installation efficiency of the counter-force frame device is high; on the other hand, the space occupation can not be very big, and the installation space of jack is comparatively broad, and equipment installation is comparatively convenient.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (8)
1. The utility model provides a stake props structural bearing capacity and detects and uses reaction frame device which characterized in that: the vertical retaining pile comprises a stress beam (3) erected on a plurality of vertical retaining piles (2), a supporting piece (6) abutting against a jack and a connecting piece (4) for connecting the stress beam (3) and the vertical retaining piles (2); the support piece (6) is rotatably arranged on the stress beam (3), a positioning component for fixing the position of the support piece (6) is arranged on the stress beam (3), and the rotating shaft of the support piece (6) is parallel to the length direction of the stress beam (3).
2. The reaction frame device for detecting the bearing capacity of a diagonal pile bracing structure according to claim 1, wherein: the bearing beam (3) comprises two sections of box beams and a load shaft (5) fixed between the two sections of box beams, one end of the supporting piece (6) is provided with a shaft hole in a penetrating mode corresponding to the load shaft (5), and the supporting piece (6) is rotatably sleeved on the load shaft (5) through the shaft hole.
3. The reaction frame device for detecting the bearing capacity of a diagonal pile bracing structure according to claim 2, wherein: the positioning component comprises a mounting plate fixed on the box beam and positioning bolts screwed on the mounting plate, and the mounting plate and the positioning bolts are symmetrically arranged on two sides of the supporting piece (6).
4. The reaction frame device for detecting the bearing capacity of a diagonal pile bracing structure according to claim 2, wherein: the positioning component comprises a positioning plate and a positioning pin which are fixed on the box beam; the positioning plate is provided with a plurality of positioning holes in a penetrating mode, and the support piece (6) is provided with fixing holes for penetrating the positioning pins.
5. The reaction frame device for detecting the bearing capacity of a diagonal pile bracing structure according to claim 1, wherein: the two ends of the connecting piece (4) are respectively fixed on the stress beam (3) and the flange plate of the vertical retaining pile (2) through high-strength bolts.
6. The reaction frame device for detecting the bearing capacity of a diagonal pile bracing structure according to claim 2, wherein: the box girder also comprises a girder base plate (9) for adjusting the height of the box girder, and the girder base plate (9) is padded at the lower side of the box girder.
7. The reaction frame device for detecting the bearing capacity of a diagonal pile bracing structure according to claim 2, wherein: the device also comprises a pulling and pressing frame (7) arranged at the upper part of the stress beam (3), wherein the pulling and pressing frame (7) is opposite to the supporting piece (6); the tension and compression frame (7) is connected with a pretension rope (8), and the other end of the pretension rope (8) is fixed on the vertical retaining pile (2) which is not covered by the stress beam (3); the pre-stretching ropes (8) are symmetrically arranged on two sides of the tension and compression frame (7).
8. The reaction frame device for detecting the bearing capacity of a diagonal pile bracing structure according to claim 7, wherein: the tension and compression frame (7) comprises two tension plates (71) symmetrically fixed on the two box beams and a transverse pull rod (72) arranged between the two tension plates (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321023356.8U CN219825398U (en) | 2023-04-28 | 2023-04-28 | Reaction frame device for detecting bearing capacity of inclined pile supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321023356.8U CN219825398U (en) | 2023-04-28 | 2023-04-28 | Reaction frame device for detecting bearing capacity of inclined pile supporting structure |
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| Publication Number | Publication Date |
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| CN219825398U true CN219825398U (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321023356.8U Active CN219825398U (en) | 2023-04-28 | 2023-04-28 | Reaction frame device for detecting bearing capacity of inclined pile supporting structure |
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| CN (1) | CN219825398U (en) |
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- 2023-04-28 CN CN202321023356.8U patent/CN219825398U/en active Active
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