CN203569597U - Counterforce traction device for single-pile static load test - Google Patents
Counterforce traction device for single-pile static load test Download PDFInfo
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- CN203569597U CN203569597U CN201320716270.3U CN201320716270U CN203569597U CN 203569597 U CN203569597 U CN 203569597U CN 201320716270 U CN201320716270 U CN 201320716270U CN 203569597 U CN203569597 U CN 203569597U
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- steel
- embedded anchoring
- counterforce
- twisted steel
- load test
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- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 230000003068 static effect Effects 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 238000004873 anchoring Methods 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 241001417495 Serranidae Species 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a counterforce traction device for a single-pile static load test. The counterforce traction device for the single-pile static load test comprises two embedded anchoring parts, wherein each embedded anchoring part is composed of a steel cylinder, a pore plate and a bolt locating plate, the pore plate and the bolt locating plate of each embedded anchoring part are arranged in the steel cylinder of the embedded anchoring part in a fixed welding mode from top to bottom, through holes formed in the pore plates are formed in the traction direction, a piece of twisted steel are arranged in each through hole, the lower end of each piece of twisted steel is connected with the corresponding bolt locating plate through a nut, the upper end of each piece of twisted steel extends out of the corresponding steel cylinder, and the upper ends of every two pieces of twisted steel are connected with steel strands through adjusting anchoring tools respectively, wherein the pieces of twisted steel connected with the steel strands are symmetric about the longitudinal center lines of the two embedded anchoring parts. The counterforce traction device for the single-pile static load test has the advantages that due to the facts that a traction structure connected between the two embedded anchoring parts is composed of the twisted steel and the steel strands, and the traction structure is connected with the embedded anchoring parts through the twisted steel, the defect that the twisted steel is low in tensile strength and large in total elongation is overcome, and the advantages that the steel strands are used for transmitting the load, and are high in tensile strength and small in total elongation are given play to.
Description
Technical field
The utility model relates to single-pile static loading test device, especially relates to single-pile static loading test counter-force pulling device.
Background technology
Field of civil engineering, in order to provide reference frame or for checking engineering stake pile quality, General Requirements carries out single-pile vertical orientation static loading test to Pile Foundations Design.Single-pile static loading test must promising test provides the device of counter-force.Chinese utility model patent number is: ZL200520031724.9 discloses a kind of " dead load test on pile foundation counterforce device ", although the technical scheme structure stress that this patent is taked is reasonable, when but this patent adopts slant-pull structure to transmit load, the installation of slant-pull structure is connected to become the key of test success or failure; If adopt reinforcing bar oblique pull to transmit load, Steel Bar Tensile Strength is little, and percentage of total elongation is larger, in order to meet the requirement of general jack range, the consumption that need to strengthen reinforcing bar makes counter-force member adjust increase thereupon, equipment heaviness, strengthen material cost simultaneously, increased the expense of test; If slant-pull structure adopts steel strand to transmit load, although reach the object that tensile strength is large, percentage of total elongation is less, steel strand and anchoring pile be connected and static loading test process in the stressed key of testing success or failure that evenly becomes of steel strand.
Summary of the invention
The utility model object is to provide a kind of single-pile static loading test counter-force pulling device.
For achieving the above object, the utility model is taked following technical proposals:
Single-pile static loading test counter-force pulling device described in the utility model, comprises two pre-buried anchoring pieces, and described each pre-buried anchor is by steel cylinder and be fixedly welded on orifice plate, the Bolt to position plate in it from top to bottom; Through hole on described orifice plate, for to offer along direction of draw, is provided with indented bars in described each through hole, and the lower end of described every indented bars is connected with described Bolt to position plate by nut respectively, and extend respectively on steel cylinder the upper end of every indented bars; Be symmetrical in two indented bars upper ends of two pre-buried anchoring piece longitudinal midline positions respectively by regulating ground tackle and steel strand to interconnect.
The utility model advantage is the tractive structure being connected between two pre-buried anchors to be arranged to be comprised of indented bars and steel strand, by indented bars, be connected with pre-buried anchor, solved the poor problem of steel strand and concrete anchoring property, facilitated the accurate location that is subject to force direction in work progress, made steel strand stressed more even.Therefore, both solved indented bars tensile strength little, the deficiency that percentage of total elongation is larger, has brought into play again steel strand and has transmitted the advantage that load tensile strength is large, percentage of total elongation is less.
Accompanying drawing explanation
Fig. 1 is use status architecture schematic diagram of the present utility model.
Fig. 2 is the I portion enlarged diagram of Fig. 1.
The specific embodiment
As shown in Figure 1, 2, single-pile static loading test counter-force pulling device described in the utility model, comprises two pre-buried anchoring pieces, and described each pre-buried anchor is by steel cylinder 1 and be fixedly welded on orifice plate 2, the Bolt to position plate 3 in it from top to bottom; Through hole on described orifice plate 2 is for tilting 54 ° to offer along direction of draw, in described each through hole, be provided with indented bars 4, the lower end of described every indented bars 4 is connected with described Bolt to position plate 3 by nut 5 respectively, and extend respectively on steel cylinder 1 upper end of every indented bars 4; Be symmetrical in two indented bars 4 upper ends of two pre-buried anchoring piece longitudinal midline 6 positions respectively by regulating ground tackle 7 and steel strand 8 to interconnect.
As shown in Figure 1, 2, the utility model shows take test pile 9 around as two engineering piles 10,11 carry out operation instruction.
First steel strand 8 are walked around to supporting body 12 end faces, then two pre-buried anchoring pieces are imbedded respectively in corresponding two engineering piles 10,11, adjust and regulate ground tackle 7 to make every steel strand 8 stressed evenly, can to test pile 9, carry out single-pile static loading test by jack 13.
Claims (1)
1. a single-pile static loading test counter-force pulling device, is characterized in that: comprise two pre-buried anchoring pieces, described each pre-buried anchor is by steel cylinder (1) and be fixedly welded on orifice plate (2), the Bolt to position plate (3) in it from top to bottom; Through hole on described orifice plate (2) is for to offer along direction of draw, in described each through hole, be provided with indented bars (4), the lower end of described every indented bars (4) is connected with described Bolt to position plate (3) by nut (5) respectively, and extend respectively on steel cylinder (1) upper end of every indented bars (4); Be symmetrical in two indented barss (4) upper end of two pre-buried anchoring piece longitudinal midline (6) positions respectively by regulating ground tackle (7) and steel strand (8) to interconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320716270.3U CN203569597U (en) | 2013-11-14 | 2013-11-14 | Counterforce traction device for single-pile static load test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320716270.3U CN203569597U (en) | 2013-11-14 | 2013-11-14 | Counterforce traction device for single-pile static load test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203569597U true CN203569597U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320716270.3U Expired - Lifetime CN203569597U (en) | 2013-11-14 | 2013-11-14 | Counterforce traction device for single-pile static load test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203569597U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447796A (en) * | 2017-08-11 | 2017-12-08 | 中国港湾工程有限责任公司 | Static load test pile counter force system |
| CN108331043A (en) * | 2018-03-18 | 2018-07-27 | 中铁十九局集团第三工程有限公司 | Large diameter and very long pile loading test device and detection method |
| CN108387453A (en) * | 2018-05-30 | 2018-08-10 | 广州建设工程质量安全检测中心有限公司 | A kind of detecting system and method for building enclosure component resistance to vertical load performance |
| CN113389230A (en) * | 2021-07-19 | 2021-09-14 | 中国港湾工程有限责任公司 | Counter-force system suitable for pile foundation axial large-tonnage static load test |
-
2013
- 2013-11-14 CN CN201320716270.3U patent/CN203569597U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447796A (en) * | 2017-08-11 | 2017-12-08 | 中国港湾工程有限责任公司 | Static load test pile counter force system |
| CN108331043A (en) * | 2018-03-18 | 2018-07-27 | 中铁十九局集团第三工程有限公司 | Large diameter and very long pile loading test device and detection method |
| CN108331043B (en) * | 2018-03-18 | 2023-09-19 | 中铁十九局集团第三工程有限公司 | Large-diameter ultra-long pile bearing capacity detection device and detection method |
| CN108387453A (en) * | 2018-05-30 | 2018-08-10 | 广州建设工程质量安全检测中心有限公司 | A kind of detecting system and method for building enclosure component resistance to vertical load performance |
| CN113389230A (en) * | 2021-07-19 | 2021-09-14 | 中国港湾工程有限责任公司 | Counter-force system suitable for pile foundation axial large-tonnage static load test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450046 Henan city of Zhengzhou province and Zheng Dong New District Road No. 3 Patentee after: HENAN TRAFFIC INSTITUTE ENGINEERING DETECTION TECHNOLOGY CO.,LTD. Address before: Longhai Road 450052 Henan city of Zhengzhou province No. 70 Patentee before: ENGINEERING DETECTION AND REINFORCING CO.,LTD. OF HENAN PROVINCIAL COMMUNICATIONS PLANNING SURVEY & DESIGN INSTITUTE CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 450046 No.9 Zeyu street, Zhengdong New District, Zhengzhou City, Henan Province Patentee after: China testing certification Co.,Ltd. Address before: 450046 No.3, Qingzheng Road, Zhengdong New District, Zhengzhou City, Henan Province Patentee before: HENAN TRAFFIC INSTITUTE ENGINEERING DETECTION TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |