CN207228104U - A kind of isolating and protecting device for preventing pile foundation steel bar cage deflection - Google Patents
A kind of isolating and protecting device for preventing pile foundation steel bar cage deflection Download PDFInfo
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- CN207228104U CN207228104U CN201720371314.1U CN201720371314U CN207228104U CN 207228104 U CN207228104 U CN 207228104U CN 201720371314 U CN201720371314 U CN 201720371314U CN 207228104 U CN207228104 U CN 207228104U
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- reinforcement cage
- lead
- steel reinforcement
- isolating
- deflection
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Abstract
A kind of isolating and protecting device for preventing pile foundation steel bar cage deflection, belongs to construction project Bridge and builds auxiliary device.It includes lead, and hook is set on the top of lead.The shape of the hook is " n " shape.The utility model has an advantageous effect in that：Lead plays the role of being oriented to and isolates with hole wall to steel reinforcement cage, and in casting process, steel reinforcement cage is not susceptible to deflection.With the increase of casting concrete amount, torque becomes larger, all the time lead is oriented in intermediate isolating, ensure not glance off still in the case where torque becomes larger, moment of flexure will not accumulate excessive inside steel reinforcement cage, it can effectively prevent steel reinforcement cage left rotation and right rotation, pendulum impact hole wall, deflection and deformation in casting concrete, declination control is reliable and stable, ensures construction quality.
Description
Technical field：
A kind of isolating and protecting device for preventing pile foundation steel bar cage deflection, belongs to construction project Bridge and builds auxiliary device.
Background technology：
During railway construction, to be related to numerous bridge constructions, bridge foundation is Bored Pile Foundation and Extended chemotherapy,
Drilled pile quantity is more, pile foundation length, and Extended chemotherapy is more.During pile foundation construction, reinforcing bar cage hoisting is entered into hole after pile foundation pore-forming, is entered
Often steel reinforcement cage is fixed using the method for welding cross reinforcing bar behind hole and (is welded with right-angled intersection steel in steel reinforcement cage radial direction
Cross reinforcing bar, is then welded on steel pile casting by muscle), then poured.But due to steel reinforcement cage stress in casting process
Larger, lower part torque is far longer than upper weld cross steel biceps square, can cause steel reinforcement cage deflection, is not easy control, and the later stage will throw
Enter substantial amounts of human and material resources to be controlled by, adjust, but highly difficult in practical operation, effect unobvious, steel reinforcement cage deflection journey
It is big to spend deviation, control deficiency.
In order to solve this problem, China Patent No. 201420198462.4 discloses that a kind of " steel reinforcement cage enters hole positioning and entangles
Deflection device ", it includes straight thread mandril, straight thread mandril top is provided with top bent plate, straight thread mandril is fixed on base
On, base is fixed by fixed holdfast.It is identical with steel reinforcement cage to come directly towards bent plate transverse direction radian, bend mode and steel reinforcement cage bending direction
Conversely.Straight screw sleeve is provided with straight thread mandril, controls steel reinforcement cage to transfer precision by adjusting fine setting straight screw sleeve.
Behind the Gang Ru holes of steel reinforcement cage bottom, surrounding sets the present apparatus, is played necessarily by adjusting straight thread mandril to correcting steel reinforcement cage deflection
Effect, but in concreting process, because concrete is not only limited to vertical direction to the active force of steel reinforcement cage, also have
Horizontal direction, steel reinforcement cage stress are not known, so control of the device to steel reinforcement cage deflection is not sufficiently stable reliable, and should
Device uses cumbersome, and the construction time extends.
The content of the invention：
Problem to be solved in the utility model provides a kind of steel reinforcement cage declination control stabilization aiming at deficiency above can
The protective device leaned on.Its technical solution is as follows：
A kind of isolating and protecting device for preventing pile foundation steel bar cage deflection, including lead, set on the top of lead and hang
Hook.
The shape of the hook is " n " shape.
The shape of the lead is cylinder.
Compared with prior art, the utility model has an advantageous effect in that：
1st, since lead 2 is up to 6-8m, naturally drooped under natural gravity effect, guiding and and hole are played to steel reinforcement cage
The effect of wall isolation, in casting process, steel reinforcement cage is not susceptible to deflection.With the increase of casting concrete amount, torque becomes larger,
In the range of the 6-8m of top, there is lead to be oriented in intermediate isolating all the time, ensure in the case where torque becomes larger not occurring still partially
Tiltedly, steel reinforcement cage inside moment of flexure will not accumulate excessive, can effectively prevent steel reinforcement cage left rotation and right rotation, pendulum impact in casting concrete
Hole wall, deflection and deformation, declination control is reliable and stable, ensures construction quality.It can meet pile foundation reinforcement cage underwater construction
Need.
2nd, the utility model apparatus structure is simple, but can solve the problems, such as big；Application method is also simple, only need to make guiding
Hook is hung on hole wall by column between steel reinforcement cage and hole wall, and then each point is welded and fixed, it is possible to casting concrete.
It is not required to want auxiliary device again to fix, adjust steel reinforcement cage.
Brief description of the drawings：
Fig. 1, is the utility model structure diagram；
Fig. 2, is the utility model usage state diagram；
Fig. 3, is another embodiment usage state diagram of the utility model.
Embodiment：
Referring to Fig. 1~Fig. 3, a kind of isolating and protecting device for preventing pile foundation steel bar cage deflection, including lead 2, it is being oriented to
The top of column 2 sets hook 1.
The shape of the hook 1 is " n " shape.
The length of the lead 2 is 6-8m.
The shape of the lead 2 is cylinder.
A diameter of 40~50mm of the lead 2.
The construction method of above-mentioned prevention pile foundation steel bar cage deflection, comprises the following steps：
1) before concreting, at least three (as shown in Figure 2 or Figure 3 three or four) leads 2 are stretched into stake holes,
Every lead angle bisecting arrangement；According to stressing conditions, 2 both ends of lead can seal can or open-ended；
2) " n " shape hook 1 is hung on steel pile casting 3, stabilization is risen to steel pile casting；
3) steel reinforcement cage 4 is installed in place, and lead 2 has guiding role to steel reinforcement cage 4；
4) each point is welded and fixed；
5) casting concrete.
Claims (5)
1. a kind of isolating and protecting device for preventing pile foundation steel bar cage deflection, it is characterised in that including lead (2), in lead
(2) top sets hook (1).
2. prevent the isolating and protecting device of pile foundation steel bar cage deflection according to claim 1, it is characterized in that the shape of hook (1)
For " n " shape.
3. prevent the isolating and protecting device of pile foundation steel bar cage deflection according to claim 1, it is characterized in that the length of lead (2)
Spend for 6-8m.
4. prevent the isolating and protecting device of pile foundation steel bar cage deflection according to claim 1, it is characterized in that the shape of lead (2)
Shape is cylinder.
5. prevent the isolating and protecting device of pile foundation steel bar cage deflection according to claim 1, it is characterized in that lead (2) is straight
Footpath is 40~50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720371314.1U CN207228104U (en) | 2017-04-10 | 2017-04-10 | A kind of isolating and protecting device for preventing pile foundation steel bar cage deflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720371314.1U CN207228104U (en) | 2017-04-10 | 2017-04-10 | A kind of isolating and protecting device for preventing pile foundation steel bar cage deflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207228104U true CN207228104U (en) | 2018-04-13 |
Family
ID=61839658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720371314.1U Active CN207228104U (en) | 2017-04-10 | 2017-04-10 | A kind of isolating and protecting device for preventing pile foundation steel bar cage deflection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207228104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836197A (en) * | 2017-04-10 | 2017-06-13 | 中国水利水电第七工程局成都水电建设工程有限公司 | The isolating and protecting device and its construction method of a kind of prevention pile foundation steel bar cage deflection |
-
2017
- 2017-04-10 CN CN201720371314.1U patent/CN207228104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836197A (en) * | 2017-04-10 | 2017-06-13 | 中国水利水电第七工程局成都水电建设工程有限公司 | The isolating and protecting device and its construction method of a kind of prevention pile foundation steel bar cage deflection |
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