CN103374924A - Full-symmetry prestressed assembled tower crane foundation - Google Patents
Full-symmetry prestressed assembled tower crane foundation Download PDFInfo
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- CN103374924A CN103374924A CN2012101144148A CN201210114414A CN103374924A CN 103374924 A CN103374924 A CN 103374924A CN 2012101144148 A CN2012101144148 A CN 2012101144148A CN 201210114414 A CN201210114414 A CN 201210114414A CN 103374924 A CN103374924 A CN 103374924A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 235000003283 Pachira macrocarpa Nutrition 0.000 claims description 12
- 241001083492 Trapa Species 0.000 claims description 12
- 235000014364 Trapa natans Nutrition 0.000 claims description 12
- 235000009165 saligot Nutrition 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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Abstract
The invention relates to a full-symmetry prestressed assembled tower crane foundation, and belongs to the field of building engineering. The full-symmetry prestressed assembled tower crane foundation is mainly use as a foundation for a fixed tower crane and also can be used as a foundation for other equipment or structures which need to move frequently. The full-symmetry prestressed assembled tower crane foundation is characterized in that a plurality of strip-shaped blocks (1) and strip-shaped blocks (2) with embedded bolts of a full-symmetry prismatic table type tower crane foundation are prefabricated, the strip-shaped blocks are respectively hoisted to a dug foundation pit by a hoist and are assembled to form a full-symmetry prismatic table, steel stranded wires (3) and anchor gears (5) are mounted on the full-symmetry prismatic table, prestress is applied to an assembled and formed crane foundation via a jack, and the anchor gears (5) are fixed when the prestress meets the requirement of a designed value, so that the foundation is completely assembled, and the foundation can be disassembled according to a reverse procedure. The full-symmetry prestressed assembled tower crane foundation has the advantages that the planar shape of the full-symmetry prestressed assembled tower crane foundation is full-symmetry, the problem of weak axes is solved, and the safety and the reliability are improved; components of the full-symmetry prestressed assembled tower crane foundation can be easily combined with one another on a plane, and the foundation is stressed reasonably; consumption of reinforcing steel bars is low; assembly errors of embedded bolt groups of the fixed tower crane are low.
Description
One, technical field
The present invention is mainly used in the fixed base tower crane basis, also can be used for the basis of the roving equipment of other needs or structure, belongs to building engineering field.
Two, background technology
China at present in various degree use the pin-connected panel tower crane, and brought huge economic benefit, but the pin-connected panel tower crane that has used and published several assembly unit tower crane patent all there are the following problems:
1, prefabricated section is complicated, member is many, and prefabricated difficulty is installed trouble, and repeating transportation, install repeatedly, and member damages easily.
2, have weak axle problem, for beam and slab type or beam type assembly unit foundation for tower crane, when tower crane rotates to when consistent with the beam direction, column foot is stressed the most reasonable, and this kind situation is strong axle; The complex stresses such as when tower crane rotated to direction between the Liang Yuliang, this kind situation was weak axle, and column foot is stressed very poor, and the basis is unstability easily, and that the composition member of column foot is subject to is curved, cut, turn round, member destroys easily.
3, present beam and slab type or beam type assembly unit foundation for tower crane, weight kicks the beam, and under the effect of tower crane dynamic load, the basis produces resonance easily and destroys the basis.In addition, although concrete material has been saved on above-mentioned basis, join the reinforcing bar amount and need strengthen, and uneconomical.
4, present beam and slab type or beam type assembly unit tower crane, its four groups fixedly the pre-embedded bolt of tower crane be embedded in respectively on four prefabricated units, these four prefabricated units certainly will cause the relative position error of these four groups of tower crane set bolts with other component assembly combinations the time, if error is excessive, can't fixed tower loop wheel machine seat.
Three, summary of the invention
The invention solves the problems referred to above, it is that holosymmetric tower crane is prefabricated into some bar blocks (1) and bar blocks (2), with crane these bar blocks are lifted into respectively the basic pit that has dug and are assembled into holosymmetric water chestnut platform shape, the tower crane of steel strand (3) and ground tackle (5) being installed again and being shaped by the jack pair assembly unit applies prestressing force, fixing ground tackle (5) when prestressing force reaches design load, finish on the assembly unit basis, and the return order is dismountable basis then.
The invention has the advantages that:
1, flat shape is holosymmetric, has overcome weak axle problem.
2, plane combination is simple, only cut apart basic plane in a direction, applying prestressing force also is a direction, needn't be as beam and slab type or beam type assembly unit tower crane need two-wayly in length and breadth to apply prestressing force and cause basic plane distortion after the assembly unit, particularly fixedly the relative position of four of tower crane groups of pre-embedded bolts changes and the relative position error of producing.The present invention is after applying prestressing force and anchoring, and the basic stress after the assembly unit is reasonable, and the frictional force between bar blocks and bar blocks can be resisted the suffered shear stress in basis; The steel strand (3) of arranging up and down can be resisted the suffered moment of flexure in basis.
3, prefabricated units are simple, and shape is single, and are prefabricated easily, also not fragile and alternative easy in lifting and assembly unit process.
4, relatively beam foundation the present invention desk-top basis of water chestnut of adopting is more reliable and more stable, and joins the reinforcing bar amount and reduce, and has saved amount of reinforcement.Although multiplex concrete amount has increased basis weight, the vibrations load that produces when overcoming tower crane work is helpful, has increased security reliability.
5, four groups of pre-embedded bolts that are used for fixed tower loop wheel machine seat are embedded in respectively two bar blocks (2), make to be embedded in that two groups of pre-embedded bolt groups along the bar blocks long side direction do not have the assembly unit error on two bar blocks.
The present invention is comprised of bar blocks (1), the bar blocks (2) with pre-embedded bolt, steel strand (3), pre-embedded bolt group (4), ground tackle (5), hole (6); Several bar blocks (1), be combined into the desk-top basis of holohedral symmetry water chestnut with the bar blocks (2) of pre-embedded bolt by flat shape; Steel strand (3) pass each bar blocks (1), are connected with the hole (6) of the bar blocks (2) of pre-embedded bolt and with the ground tackle (5) at two ends; Apply prestressing force and fixing ground tackle (5) by jack pair steel strand (3).
Four, description of drawings
Description of reference numerals: the 1-bar blocks, 2-is with the bar blocks of pre-embedded bolt, 3-steel strand, 4-pre-embedded bolt group, 5-ground tackle, 6-hole.
Fig. 1 is square combination view of the present invention.
Fig. 2 is octagon combination view of the present invention.
Fig. 3 is square combination side elevational view of the present invention.
Fig. 4 is the enlarged drawing of ground tackle of the present invention (5) and hole (6).
Fig. 5 be the present invention be arranged on the bar blocks (2) with the fixing pre-embedded bolt group layout plan of different model tower crane.
Five, the specific embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 are by prefabrication bar blocks (1), with the bar blocks (2) of pre-embedded bolt and be transported to the building site; The holohedral symmetry water chestnut platform shape that is lifted into respectively the basic pit that has dug and is assembled into design with bar blocks (1), with the bar blocks (2) of pre-embedded bolt with crane first, the plane projection of this holohedral symmetry water chestnut platform shape can be that square also can be octagon, circle or other any holosymmetric shapes, has so just formed the desk-top basis of holosymmetric water chestnut.Certainly, if the basis is little, also can change over water chestnut platform shape plate shaped.It should be noted that: with two groups of pre-embedded bolt positions on the bar blocks (2) of pre-embedded bolt should with the position consistency of corresponding tower crane support bolt hole, the assembly unit error of the tower crane set bolt group of so just having eliminated that this side up; With steel strand (3) pass each bar blocks (1), with the hole (6) of the bar blocks (2) of pre-embedded bolt; Ground tackle (5) is installed and is applied prestressing force by jack pair steel strand (3) at the two ends of steel strand (3), should monitor simultaneously the spacing of A-A center line shown in Figure 1 and B-B center line, the spacing of A-A center line and B-B center line is the center to center distance of two groups of fixed tower loop wheel machine seat bolt groups, and should put consistent with corresponding tower crane support spiro keyhole position.In applying the prestressing force process, the spacing of A-A center line and B-B center line can constantly be contracted to required value, should add drift this moment between two middle bar blocks, stop the spacing of A-A center line and B-B center line further to be dwindled, fixing ground tackle (5) when the prestress value that applies reaches design load, finish on the assembly unit basis.Be easier in this way eliminate the assembly unit error of A-A center line and B-B centreline space, make assembly unit work become simple and reliable.Answer the both sides symmetry to apply successively when applying prestressing force, progressively finish.The return order is dismountable basis then.In order to make the present invention can be used in the tower crane of different model, as shown in Figure 5: can be that two groups of symmetries are pre-buried with the pre-embedded bolt group (4) on the bar blocks (2) of pre-embedded bolt, also can be that many groups are symmetrical pre-buried, the position that is per two groups of pre-embedded bolt groups (4) should be corresponding one by one with the position of the tower crane support bolt hole of respective model, the position of another direction pre-embedded bolt group (4), the distance that is A-A center line and B-B center line can make up with the bar blocks (1) of different in width, make the A-A center line consistent with desired distance with the distance of B-B center line, so just solved versatility of the present invention.
It should be noted that: bar blocks (1), can be steel concrete with the material of pre-embedded bolt bar blocks (2), concrete, steel case beam or other materials.The material of steel strand (3) can be steel wire, reinforcing bar or other high-strength materials.
?
Claims (5)
1. holohedral symmetry prestressed assembly formula foundation for tower crane, it is characterized in that: it is comprised of bar blocks (1), the bar blocks (2) with pre-embedded bolt, steel strand (3), pre-embedded bolt group (4), ground tackle (5), hole (6); Several bar blocks (1), be combined into the desk-top basis of holohedral symmetry water chestnut with the bar blocks (2) of pre-embedded bolt by flat shape; Steel strand (3) pass each bar blocks (1), are connected with the hole (6) of the bar blocks (2) of pre-embedded bolt and with the ground tackle (5) at two ends; Apply prestressing force and fixing ground tackle (5) by jack pair steel strand (3).
2. a kind of holohedral symmetry prestressed assembly formula foundation for tower crane according to claim 1 is characterized in that described bar blocks (1), can be steel concrete with the material of pre-embedded bolt bar blocks (2), concrete, steel case beam or other materials.
3. a kind of holohedral symmetry prestressed assembly formula foundation for tower crane according to claim 1, the material that it is characterized in that described steel strand (3) can be steel wire, reinforcing bar or other high-strength materials.
4. a kind of holohedral symmetry prestressed assembly formula foundation for tower crane according to claim 1, it is characterized in that the pre-embedded bolt group (4) on the described bar blocks with pre-embedded bolt (2) can be that two groups of symmetries are pre-buried, also can be that many groups are symmetrical pre-buried, the position that is per two groups of pre-embedded bolt groups (4) should be corresponding one by one with the position of the tower crane support bolt hole of respective model.
5. a kind of holohedral symmetry prestressed assembly formula foundation for tower crane according to claim 1, it is characterized in that described several bar blocks (1), be combined into the desk-top basis of holohedral symmetry water chestnut with the bar blocks (2) of pre-embedded bolt by flat shape, the shape on the desk-top basis of this holohedral symmetry water chestnut can be that water chestnut platform shape also can be plate shaped; The plane projection shape on the desk-top basis of this holohedral symmetry water chestnut can be square, also can be octagon, circular or other any holosymmetric flat shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210114414.8A CN103374924B (en) | 2012-04-18 | 2012-04-18 | A kind of holohedral symmetry prestressed assembly formula foundation for tower crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210114414.8A CN103374924B (en) | 2012-04-18 | 2012-04-18 | A kind of holohedral symmetry prestressed assembly formula foundation for tower crane |
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| Publication Number | Publication Date |
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| CN103374924A true CN103374924A (en) | 2013-10-30 |
| CN103374924B CN103374924B (en) | 2015-12-09 |
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| CN201210114414.8A Expired - Fee Related CN103374924B (en) | 2012-04-18 | 2012-04-18 | A kind of holohedral symmetry prestressed assembly formula foundation for tower crane |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594374A (en) * | 2014-12-23 | 2015-05-06 | 上海建工材料工程有限公司 | Combination construction method for combined type communication tower footing |
| CN106013207A (en) * | 2016-06-12 | 2016-10-12 | 武汉市创先专利技术服务有限公司 | Fully-symmetrical prestress assembled type tower crane foundation connected to pile foundation |
| CN106451300A (en) * | 2016-08-29 | 2017-02-22 | 山东电力工程咨询院有限公司 | Cable trench of general assembly type GIS empty casing foundation |
| CN106894437A (en) * | 2017-02-15 | 2017-06-27 | 同济大学建筑设计研究院(集团)有限公司 | Limited prestressing precast concrete foundation, communication tower building and construction method |
| CN112878354A (en) * | 2021-02-23 | 2021-06-01 | 北京银泰建构预应力技术股份有限公司 | Beam-slab assembled prestressed concrete foundation for onshore wind turbine generator |
| CN113668596A (en) * | 2021-09-05 | 2021-11-19 | 弓健 | Prefabricated iron tower basis of assembled |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61151328A (en) * | 1984-12-22 | 1986-07-10 | Hitachi Plant Eng & Constr Co Ltd | Installation structure for machinery |
| CN101881030A (en) * | 2009-05-07 | 2010-11-10 | 周长忠 | Split-mounting type foundation for tower crane |
| CN202164619U (en) * | 2011-05-13 | 2012-03-14 | 刘浦贵 | Multi-functional tower machine base of pre-stressed integrated concrete member |
-
2012
- 2012-04-18 CN CN201210114414.8A patent/CN103374924B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61151328A (en) * | 1984-12-22 | 1986-07-10 | Hitachi Plant Eng & Constr Co Ltd | Installation structure for machinery |
| CN101881030A (en) * | 2009-05-07 | 2010-11-10 | 周长忠 | Split-mounting type foundation for tower crane |
| CN202164619U (en) * | 2011-05-13 | 2012-03-14 | 刘浦贵 | Multi-functional tower machine base of pre-stressed integrated concrete member |
Non-Patent Citations (2)
| Title |
|---|
| 岳晨曦、从卫民: "混凝土预制拼装多用塔机基础底面形状的优化", 《建筑技术开发》, vol. 36, no. 2, 28 February 2009 (2009-02-28) * |
| 王军平: "预制拼装塔机基础在工程中的应用", 《山西建筑》, vol. 38, no. 10, 10 April 2012 (2012-04-10) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594374A (en) * | 2014-12-23 | 2015-05-06 | 上海建工材料工程有限公司 | Combination construction method for combined type communication tower footing |
| CN106013207A (en) * | 2016-06-12 | 2016-10-12 | 武汉市创先专利技术服务有限公司 | Fully-symmetrical prestress assembled type tower crane foundation connected to pile foundation |
| CN106451300A (en) * | 2016-08-29 | 2017-02-22 | 山东电力工程咨询院有限公司 | Cable trench of general assembly type GIS empty casing foundation |
| CN106451300B (en) * | 2016-08-29 | 2018-06-05 | 山东电力工程咨询院有限公司 | The cable duct on general assemble formula GIS empty vans basis |
| CN106894437A (en) * | 2017-02-15 | 2017-06-27 | 同济大学建筑设计研究院(集团)有限公司 | Limited prestressing precast concrete foundation, communication tower building and construction method |
| CN112878354A (en) * | 2021-02-23 | 2021-06-01 | 北京银泰建构预应力技术股份有限公司 | Beam-slab assembled prestressed concrete foundation for onshore wind turbine generator |
| CN113668596A (en) * | 2021-09-05 | 2021-11-19 | 弓健 | Prefabricated iron tower basis of assembled |
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| Publication number | Publication date |
|---|---|
| CN103374924B (en) | 2015-12-09 |
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Effective date of registration: 20191126 Address after: 214500 No.8 JinDou Road, Jingjiang City, Taizhou City, Jiangsu Province Patentee after: Jiangsu Xinhe Environmental Technology Co., Ltd Address before: 430064 Wuhan Institute of education, Hongshan 712 District, Hubei, China Co-patentee before: Huang Aijun Patentee before: Peng Baoan |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20151209 Termination date: 20200418 |