CN103374924B - A kind of holohedral symmetry prestressed assembly formula foundation for tower crane - Google Patents
A kind of holohedral symmetry prestressed assembly formula foundation for tower crane Download PDFInfo
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- CN103374924B CN103374924B CN201210114414.8A CN201210114414A CN103374924B CN 103374924 B CN103374924 B CN 103374924B CN 201210114414 A CN201210114414 A CN 201210114414A CN 103374924 B CN103374924 B CN 103374924B
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- bar blocks
- tower crane
- embedded bolt
- water chestnut
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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 abstract description 14
- 241001083492 Trapa Species 0.000 claims abstract description 14
- 235000014364 Trapa natans Nutrition 0.000 claims abstract description 14
- 235000009165 saligot Nutrition 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly 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
- 230000011218 segmentation Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
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Abstract
The main </b><bGreatT.Gre aT.GT of <b> the present invention " </b><bGreatT.Gre aT.GT holohedral symmetry prestressed assembly formula foundation for tower crane </b><bGreatT.Gre aT.GT " is used for fixing tower crane foundation, also can be used for the basis that other need roving equipment or structure, belong to building engineering field.It desk-top for holosymmetric water chestnut tower crane is prefabricated into some bar blocks (1) and the bar blocks (2) with pre-embedded bolt, these bar blocks be lifted into respectively with crane the basic pit that dug and be assembled into holosymmetric water chestnut platform shape, steel strand (3) and ground tackle (5) are installed again and by the tower crane Shi Hanzhang of the assembled shaping of jack pair, ground tackle (5) is fixed when prestressing force reaches design load, assembled basis completes, and return sequence is dismountable basis then.Its advantage is: flat shape is holosymmetric, overcomes weak axle problem, adds security reliability; Plane combination is simple, and basic stress is reasonable; Amount of reinforcement is little; The pre-embedded bolt assembly error of fixing tower crane is little.</b>
Description
one, technical field
the present invention is mainly used in fixed base tower crane basis, also can be used for the basis that other need roving equipment or structure, belongs to building engineering field.
two, background technology
china at present in various degree employ pin-connected panel tower crane, and brought huge economic benefit, but the pin-connected panel tower crane used and published several assembled tower crane patent all there are the following problems:
1, prefabricated section is complicated, component is many, prefabricated difficulty, installs trouble, and repeating transport, install repeatedly, component easily damages.
2, there is weak axle problem, for beam and slab type or the assembled foundation for tower crane of beam type, when tower crane rotates to consistent with beam direction, column foot is stressed the most reasonable, and this kind of situation is strong axle; When tower crane rotates to the direction between Liang Yuliang, this kind of situation is weak axle, and column foot is stressed very poor, basis easily unstability, the composition component of column foot be subject to curved, cut, the complex stress such as to turn round, component easily destroys.
3, current beam and slab type or the assembled foundation for tower crane of beam type, weight kicks the beam, and under the effect of tower crane dynamic load, basis easily produces resonance and destroys basis.In addition, although above-mentioned basis saves concrete material, joining reinforcing bar amount needs to strengthen, and uneconomical.
4, current beam and slab type or the assembled tower crane of beam type, its the four groups pre-embedded bolts fixing tower crane are embedded on four prefabricated units respectively, these four prefabricated units certainly will cause the relative position error of these four groups of tower crane set bolts when combining with other component assemblies, if error is excessive, cannot fixed tower loop wheel machine seat.
three, summary of the invention
the invention solves the problems referred to above, it holosymmetric tower crane is prefabricated into some bar blocks (1) and bar blocks (2), these bar blocks be lifted into respectively with crane the basic pit that dug and be assembled into holosymmetric water chestnut platform shape, steel strand (3) and ground tackle (5) are installed again and by the tower crane Shi Hanzhang of the assembled shaping of jack pair, ground tackle (5) is fixed when prestressing force reaches design load, assembled basis completes, and return sequence is dismountable basis then.
the invention has the advantages that:
1, flat shape is holosymmetric, overcomes weak axle problem.
2, plane combination is simple, only at a direction segmentation basic plane, Shi Hanzhang is also a direction, two-way Shi Hanzhang and cause the distortion of assembled rear basic plane in length and breadth need not be needed as beam and slab type or the assembled tower crane of beam type, particularly fix the relative position change of four groups of pre-embedded bolts of tower crane and the relative position error of producing.The present invention is at Shi Hanzhang and after anchoring, the basic stress after assembled is reasonable, and the frictional force between bar blocks and bar blocks can resist the shear stress suffered by basis; The steel strand (3) arranged up and down can resist the moment of flexure suffered by basis.
3, prefabricated units are simple, and shape is single, easily prefabricated, also not fragile and easily alternative in lifting and assembled process.
4, relatively the desk-top basis of water chestnut that adopts of beam foundation the present invention is more reliable and more stable, and joins reinforcing bar amount and reduce, and saves amount of reinforcement.Although multiplex concrete amount, adds basis weight, helpful to the vibrations load produced when overcoming tower crane work, add security reliability.
5, four groups of pre-embedded bolts for fixed tower loop wheel machine seat are embedded in two bar blocks (2) respectively, and the two groups of pre-embedded bolt groups making to be embedded in along bar blocks long side direction in two bar blocks do not have assembled error.
the present invention is made up 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) through each bar blocks (1), with the bar blocks (2) of pre-embedded bolt hole (6) and be connected with the ground tackle (5) at two ends; By jack pair steel strand (3) Shi Hanzhang also fixing ground tackle (5).
four, accompanying drawing explanation
description of reference numerals: 1-bar blocks, 2-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 composite plan view of the present invention.
fig. 2 is octagon combination view of the present invention.
fig. 3 is square composite 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 is the pre-embedded bolt group layout plan fixing with different model tower crane that the present invention is arranged in bar blocks (2).
five, detailed description of the invention
below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
see Fig. 1, Fig. 2, Fig. 3, Fig. 4, by prefabrication bar blocks (1), with pre-embedded bolt bar blocks (2) and be transported to building site; First with crane by bar blocks (1), be lifted into the bar blocks (2) of pre-embedded bolt the basic pit that dug respectively and be assembled into the holohedral symmetry water chestnut platform shape of design, the plane projection of this holohedral symmetry water chestnut platform shape can be square also can be octagon, circle or other any holosymmetric shapes, so just defines the desk-top basis of holosymmetric water chestnut.Certainly, if basis is little, also can water chestnut platform shape be changed over plate shaped.It should be noted that: with two groups of pre-embedded bolt positions in the bar blocks (2) of pre-embedded bolt should with the position consistency of corresponding tower crane support bolt hole, the assembled error of the tower crane set bolt group that thus eliminating the need that this side up; By steel strand (3) through each bar blocks (1), hole (6) with the bar blocks (2) of pre-embedded bolt; At the two ends of steel strand (3), ground tackle (5) be installed and pass through jack pair steel strand (3) Shi Hanzhang, the spacing of the center line of A-A shown in Fig. 1 and B-B center line should be monitored simultaneously, 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 Shi Hanzhang process, the spacing of A-A center line and B-B center line constantly can be contracted to required value, now should add drift between middle two pieces of bar blocks, the spacing of A-A center line and B-B center line is stoped to reduce further, fix ground tackle (5) when the prestress value applied reaches design load, assembled basis completes.Be easier to the assembled error eliminating A-A center line and B-B centreline space in this way, make assembled work become simple and reliable.Answer both sides symmetry to apply successively during Shi Hanzhang, progressively complete.Return sequence is dismountable basis then.In order to the tower crane making the present invention can be used in different model, as shown in Figure 5: can be that two groups of symmetries are pre-buried with the pre-embedded bolt group (4) in the bar blocks (2) of pre-embedded bolt, also can be that many groups are symmetrical pre-buried, just every two groups of pre-embedded bolt groups (4) position should with the position one_to_one corresponding of the tower crane support bolt hole of respective model, the position in another direction pre-embedded bolt group (4), namely the distance of A-A center line and B-B center line can combine with the bar blocks of different in width (1), make the distance of A-A center line and B-B center line and required distance consistent, this addresses the problem versatility of the present invention.
it should be noted that: bar blocks (1), can be steel concrete, concrete, steel box-girder or other materials with the material of pre-embedded bolt bar blocks (2).The material of steel strand (3) can be steel wire, reinforcing bar or other high-strength materials.
Claims (1)
1.
a kind of holohedral symmetry prestressed assembly formula foundation for tower crane, is characterized in that: it is made up 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) through each bar blocks (1), with the bar blocks (2) of pre-embedded bolt hole (6) and be connected with the ground tackle (5) at two ends; By jack pair steel strand (3) Shi Hanzhang also fixing ground tackle (5); Bar blocks (1), be steel concrete with the material of pre-embedded bolt bar blocks (2), or concrete, or steel box-girder or other materials; The material of steel strand (3) is steel wire, or reinforcing bar; Be that two groups of symmetries are pre-buried with the pre-embedded bolt group (4) in the bar blocks (2) of pre-embedded bolt, or many groups are symmetrical pre-buried, the position one_to_one corresponding of the position of every two groups of pre-embedded bolt groups (4) and the tower crane support bolt hole of respective model; 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 this desk-top basis of holohedral symmetry water chestnut is water chestnut platform shape, or it is plate shaped, the plane projected shape on this desk-top basis of holohedral symmetry water chestnut is square, or octagon, or circular, or other any holosymmetric flat shape.
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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| CN103374924A CN103374924A (en) | 2013-10-30 |
| CN103374924B true 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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Families Citing this family (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 |
| 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 |
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 |
|---|
| 混凝土预制拼装多用塔机基础底面形状的优化;岳晨曦、从卫民;《建筑技术开发》;20090228;第36卷(第2期);第13-15，接18页第3小节以及图2 * |
| 预制拼装塔机基础在工程中的应用;王军平;《山西建筑》;20120410;第38卷(第10期);第262-263页第1-3小节 * |
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| CN103374924A (en) | 2013-10-30 |
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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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Granted publication date: 20151209 Termination date: 20200418 |
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