CN103276748B - Steel template system used for subway foundation pit supporting beam - Google Patents
Steel template system used for subway foundation pit supporting beam Download PDFInfo
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- CN103276748B CN103276748B CN201310183795.XA CN201310183795A CN103276748B CN 103276748 B CN103276748 B CN 103276748B CN 201310183795 A CN201310183795 A CN 201310183795A CN 103276748 B CN103276748 B CN 103276748B
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Abstract
The invention discloses a steel template system used for a subway foundation pit supporting beam. The steel template system comprises a main beam template and diagonal bracing beam templates, wherein the main beam template is located in the middle, the diagonal bracing beam templates are located at the two ends, the main beam template and the diagonal bracing beam templates are formed by steel templates in a parallel and opposite mode, the bottoms of the steel templates are provided with foot braces which can be locked with the ground, the oppositely-arranged steel templates are connected and supported through jack screws at the tops of the steel templates, the outer side of each steel template is provided with an outer supporting framework which can support and abut against the steel templates, each outer supporting framework comprises a portal frame and supporting rod assemblies, each portal frame is provided with a portal frame cross beam and stand columns, the supporting rod assemblies are installed on the stand columns and used for supporting the steel templates, each supporting rod assembly comprises a supporting board used for abutting against the steel templates, and a supporting rod used for adjusting the supporting board to move back and forth, each supporting board is connected to the end portion of one supporting rod, and the supporting rods are screws and penetrate through the stand columns and are in threaded connection with the stand columns. By the adoption of the technical scheme, the steel template system is good in integrality, the templates do not deform easily, fixation is firm, the supporting beam is prevented from producing structural deformation when concreted is poured, and assembly and disassembly are rapid and convenient.
Description
Technical field
The present invention relates to a kind of steel form of brace summer, particularly relate to a kind of steel template system for subway foundation pit brace summer.
Background technology
In the construction of subway foundation pit brace summer, adopt wooden form traditionally, its operation is loaded down with trivial details, and mould is built of poor quality, easily runs mould.In addition, being then adopt small steel templates, by small steel templates being in turn connected to form overall brace summer template, even if in short transverse, also needing to be spliced by polylith small steel templates.The steel template system globality that small steel templates is spliced is poor, easily runs moding shape.And, by mutually supporting drawing pull bar between the steel form that opposed juxtaposition is arranged, these needs are pre-buried to pull bar plastic pipe in steel concrete, usually cause producing Steric clashes to the reinforcing bar in pull bar and concrete, poor reliability, brace summer length span is larger, template self easily produces torsional deformation, template strength is not enough, and support force is inadequate, bear larger pressure at concreting rear pattern plate and also easily produce distortion, thus cause brace summer side twisting strain, be out of shape excessive, do not reach the requirement of brace summer, even occur that reinforcing bar is exposed, this is that building operations is unacceptable, side twisting strain also can cause template plug into position cracking thus spillage.And often, installing/dismounting length consuming time, labour intensity are large in existing brace summer steel form splicing.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is to provide that a kind of template is not yielding, fixation, when can prevent concreting brace summer produce malformation and dismounting quickly and easily for the steel template system of subway foundation pit brace summer.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of steel template system for subway foundation pit brace summer, comprise the girder template being positioned at middle part and the raker beam template being positioned at two ends, described girder template is oppositely arranged composition with raker beam template by steel form is parallel, the heel brace that can lock with ground is provided with bottom described steel form, by being located at the very heavy screw mandrel support and connection at steel form top between the described parallel steel form be oppositely arranged, the outer support framework that can support and abut described steel form is provided with outside described steel form, described outer support framework comprises the portal frame with door frame crossbeam and column and the support bar assembly for supporting described steel form being installed on gantry pillar, described support bar assembly comprises the gripper shoe for abutting described steel form and the support bar for regulating described gripper shoe movable, described gripper shoe is connected to the end of described support bar, described support bar is screw rod and is threaded with described column through described column.
As the improvement of technique scheme, the link end of described support bar and described gripper shoe has the larger head of a diameter and the less neck of a diameter, described gripper shoe is provided with the boss with endoporus for connecting described support bar to support bar side, described endoporus has a diameter and is less than diameter of bore and the opening being less than described support bar head diameter, the head of described support bar is assemblied in described endoporus, and neck coordinates with described opened gap.
As the improvement of technique scheme, the external surface of described gripper shoe is smooth surface.
As the improvement of technique scheme, the other end end of described support bar is provided with pin hole.
As the improvement of technique scheme, the door frame crossbeam of described outer support framework is provided with hanger.
As the improvement of technique scheme, the door frame crossbeam of described outer support framework and column adopt square steel, and the both sides, junction of described door frame crossbeam and column adopt steel plate to do to strengthen pasting weldering.
As the improvement of technique scheme, described very heavy screw mandrel comprises the screw mandrel body of rod, two contrary with the hand of spiral that described screw mandrel body of rod two ends are spirally connected respectively screw rods, the other end and the described screw mandrel of described screw rod twist ear pin joint, and the medium position of the described screw mandrel body of rod is provided with pin hole.
As the improvement of technique scheme, the top of described steel form is provided with lifting strand ear, is provided with screw mandrel strand ear inside described lifting strand ear, and described very heavy screw mandrel is by described screw mandrel strand ear pin joint.
As the improvement of technique scheme, described heel brace is angle steel, and described heel brace and ground adopt locked with bolts.
As the improvement of technique scheme, described steel form external surface is vertically provided with reinforcing rib side by side, is laterally provided with side by side and strengthens logical beam.
Implement technical scheme of the present invention, following beneficial effect can be obtained: the steel template system that the present invention is used for subway foundation pit brace summer is made up of parallel being oppositely arranged of steel form, steel form preferably adopts all-steel big shuttering, the bottom of steel form is provided with the heel brace that can lock with ground, top is docked by very heavy screw mandrel, the outer support framework that can support and abut steel form is also provided with outside steel form, three forms the complementary entirety of compact siro spinning technology, effectively steel form is supported fixing, and the steel template system formed is not yielding, good integrity, substantially increase the quality of form concrete, when effectively prevent concreting, brace summer produces malformation.
Accompanying drawing explanation
Fig. 1 is that the structure of a kind of steel template system embodiment for subway foundation pit brace summer of the present invention is always schemed;
Fig. 2 is the structural representation of steel form embodiment illustrated in fig. 1, and wherein Fig. 2 a is front view, and Fig. 2 b is lateral view;
Fig. 3 a is the structural representation of China and foreign countries embodiment illustrated in fig. 1 support frame, and Fig. 3 b is the partial enlarged drawing of a-quadrant in Fig. 3;
Fig. 4 be embodiment illustrated in fig. 1 in the structural representation of very heavy screw mandrel.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
Fig. 1 is that the structure of a kind of steel template system embodiment for subway foundation pit brace summer of the present invention is always schemed, the embodiment of the present invention comprises the girder template 1 being positioned at middle part and the raker beam template 2 being positioned at two ends, further, raker beam template forms the stem tail shape of " rice " word, and also namely steel template system of the present invention is rendered as " rice " word shape removing a middle horizontal stroke.Girder template forms by parallel being oppositely arranged of steel form 3 with raker beam template, the heel brace 31 that can lock with ground is provided with bottom steel form 3, heel brace 31 is preferably angle steel, bolt or screw can be adopted to lock with ground, by being located at very heavy screw mandrel 4 support and connection at steel form top between parallel two steel forms 3 be oppositely arranged, the outside of steel form 3 is provided with the outer support framework 5 that can support and abut described steel form 3, outer support framework 5 comprises the portal frame with door frame crossbeam 51 and column 52 and the support bar assembly for supporting steel template 3 being installed on gantry pillar 52, support bar assembly comprises the gripper shoe 54 for abutting steel form 3 and the support bar 53 for regulating gripper shoe 54 movable, gripper shoe 54 is connected to the end of support bar 53, support bar 53 is for screw rod and from column 52 through being threaded with column 52.
In embodiments of the present invention, steel template system for subway foundation pit brace summer is made up of parallel being oppositely arranged of steel form 3, steel form preferably adopts all-steel big shuttering integral mold plate to replace splice template, be located at the heel brace 31 bottom steel form 3, the very heavy screw mandrel 4 of top docking, the outer support framework 5 be located at outside steel form 3 constitutes the complementary entirety of compact siro spinning technology, thus effectively steel form is supported fixing, and the steel template system formed is not yielding, good integrity, substantially increase the quality of form concrete, and brace summer produces malformation when effectively prevent concreting, mainly side twisting strain.And the installation simple and fast of very heavy screw mandrel and outer support framework, by mechanical hoisting, improves dismounting speed and the efficiency of construction of steel form.Use traditional wooden form or small steel templates, need to arrange between the template be set up in parallel pull bar to dock and to support the template be oppositely arranged, this needs when pouring into a mould brace summer pre-buried to pull bar plastic pipe in steel concrete, pre-buried quantity is many, complex procedures, work efficiency is low, and fixes pulling eye position because steel form is reserved, usually cause producing Steric clashes to pull bar and reinforcement in concrete, reliability is low.Adopt outer support frame construction of the present invention then can well solve above-mentioned to the problem existing for pull bar, especially no longer there will be problem pull bar and concrete reinforcement being produced to Steric clashes, and also overcome the defect adopting generation side twisting strain when the pull bar institute brace summer that is difficult to avoid is built.Preferably, the column of outer support framework 5 both sides is symmetrical arranged two pairs of support bar assemblies, thus more firmly also more uniformly provides a supporting role for steel form 3.
Further, see Fig. 3 a and Fig. 3 b, support bar 53 and the link end of gripper shoe 54 have the larger head of a diameter 531 and the less neck 532 of a diameter, gripper shoe 54 is provided with the boss 541 with endoporus 542 for connecting support bar 54 to support bar side, endoporus 542 has the opening 543 that a diameter is less than endoporus 542 diameter, the head 531 of support bar 53 stretches into the endoporus 542 of boss 541 thus is assemblied in wherein, and can within it rotate, neck 532 and opening 543 matched in clearance of support bar 53.Because head 531 diameter of support bar 53 is comparatively large, and neck 532 diameter is less; Endoporus 542 diameter of corresponding gripper shoe convex platform 541 is larger, and opening 543 diameter is less than the diameter of endoporus 542, and be less than the diameter of support bar head 531, thus, the head 531 of support bar can be assemblied in endoporus 542 and rotate at endoporus, head 531 is stopped again at narrow opening 543 place of boss 541 simultaneously, can not move forward and backward relative to gripper shoe 54.Therefore, fixing when all installing at steel form 3, heel brace 31, very heavy screw mandrel 4 and outer support framework 5, when adjusting the elasticity of outer support framework 5 apical grafting steel form 3 if also need, only need rotary support bar 53, the head of support bar 53 can tightly withstand gripper shoe 54, and make gripper shoe 54 hold out against steel form 3, thus play a supporting role.Because gripper shoe 54 is plate bodys, its external surface abutted with steel form is preferably smooth surface, support bar 53 and gripper shoe 54 adopt aforesaid structure design, and in whole adjustment process, gripper shoe 54 all can keep not rotary state, what rotated is only support bar 53, therefore, gripper shoe 54 can prop up steel form 3 to uniform force application, both can not cause the friction damage of steel form because of rotation, also steel form will be caused not neat because of steel form unbalance stress, and cause supporting distortion when beam form is built.
Preferably, the other end end of support bar 53 is provided with pin hole 533, like this, when needs regulate support bar 53, only need insert latch hole 533 in can make it movable by rotary support bar 53 easily, thus gripper shoe 54 is pushed against or pine from steel form 3.
Preferably, the door frame crossbeam 51 of outer support framework 5 is provided with hanger 511, so that externally support frame 5 carries out lifting, moving and adjust its position.
Preferably, door frame crossbeam 51 and the column 52 of outer support framework 5 adopt square steel, door frame crossbeam 51 two ends with the junction of column 52 before and after both sides all adopt steel plate 510 to do to strengthen pasting to weld, to improve rigidity and the resistance to overturning of outer support framework 5.
Further, the top of steel form 3 is provided with lifting strand ear 32, make steel form 3 can very safe and convenient by mechanical handling and in place, improve operating efficiency, alleviate labour intensity.Be provided with screw mandrel strand ear 33 inside described lifting strand ear 32, very heavy screw mandrel 4 is by screw mandrel strand ear 33 pin joint.As shown in Figure 4, very heavy screw mandrel 4 comprises the screw mandrel body of rod 41, two contrary with the hand of spiral that the screw mandrel body of rod 41 two ends are spirally connected respectively screw rods 42, and the medium position of the screw mandrel body of rod 41 is provided with the second pin hole 411, and the other end of screw rod 42 and screw mandrel twist ear 33 pin joint.Second pin hole 411 can insert latch thus the rotary screw body of rod 41 easily, and makes the screw rod 42 synchronous backward rotary extension at two ends, thus realizes the installation of steel form, adjustment and dismounting.Very heavy screw mandrel 4 is arranged at the top of steel form 3, thus also can not impact construction when building brace summer between the steel form 3 be set up in parallel.
Preferably, see Fig. 2 a and Fig. 2 b, the external surface of steel form 3 is vertically provided with reinforcing rib 34 side by side, laterally be provided with side by side and strengthen logical beam 35, anyhow the reinforcing rib 34 be crisscross arranged and the logical beam 35 of reinforcement improve the intensity of steel form, thus further increase the globality of steel form, make it not yielding.
Steel template system of the present invention adopts Large Area Steel template, and steel form high unity is designed to 1100mm, and thickness is 5mm, reinforcing rib adopts 80*5mm steel plate, strengthen logical beam and adopt 80*80*5 square steel, wherein, each piece of steel form length of girder template can reach 880mm ~ 3000mm.Raker beam template due to steel template system two ends is stem and the tail shape of " rice " word, and therefore, raker beam template can should have the plate that some areas are less mutually, especially at the junction with middle part girder.Adopt all-steel big shuttering, compare traditional small steel templates splicing number of times few, quick for installation, lower to the technical requirements of workman, labour intensity is little.And the raker beam template of brace summer system end is due to the initial and tail sections shape in rice word, structure is more complicated, adopts Traditional Wood template or small steel templates, stressed complexity, easy race mould, adopts the good large steel moulding plate of globality then can avoid the generation of Similar Problems well.
Above disclosedly be only several preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. the steel template system for subway foundation pit brace summer, it is characterized in that: comprise the girder template being positioned at middle part and the raker beam template being positioned at two ends, described girder template is oppositely arranged composition with raker beam template by steel form is parallel, the heel brace that can lock with ground is provided with bottom described steel form, by being located at the very heavy screw mandrel support and connection at steel form top between the described parallel steel form be oppositely arranged, the outer support framework that can support and abut described steel form is provided with outside described steel form, described outer support framework comprises the portal frame with door frame crossbeam and column and the support bar assembly for supporting described steel form being installed on gantry pillar, described support bar assembly comprises the gripper shoe for abutting described steel form and the support bar for regulating described gripper shoe movable, described gripper shoe is connected to the end of described support bar, described support bar is screw rod and is threaded with described column through described column.
2. steel template system as claimed in claim 1, it is characterized in that: the link end of described support bar and described gripper shoe has the larger head of a diameter and the less neck of a diameter, described gripper shoe is provided with the boss with endoporus for connecting described support bar to support bar side, described endoporus has a diameter and is less than diameter of bore and the opening being less than described support bar head diameter, the head of described support bar is assemblied in described endoporus, and neck coordinates with described opened gap.
3. steel template system as claimed in claim 2, is characterized in that: the external surface of described gripper shoe is smooth surface.
4. steel template system as claimed in claim 3, is characterized in that: the other end end of described support bar is provided with pin hole.
5. steel template system as claimed in claim 1, is characterized in that: the door frame crossbeam of described outer support framework is provided with hanger.
6. steel template system as claimed in claim 1, is characterized in that: the door frame crossbeam of described outer support framework and column adopt square steel, and the both sides, junction of described door frame crossbeam and column adopt steel plate to do to strengthen pasting weldering.
7. steel template system as claimed in claim 1, it is characterized in that: described very heavy screw mandrel comprises the screw mandrel body of rod, two contrary with the hand of spiral that described screw mandrel body of rod two ends are spirally connected respectively screw rods, the other end and the described screw mandrel of described screw rod twist ear pin joint, and the medium position of the described screw mandrel body of rod is provided with pin hole.
8. steel template system as claimed in claim 1, is characterized in that: the top of described steel form is provided with lifting strand ear, is provided with screw mandrel strand ear inside described lifting strand ear, and described very heavy screw mandrel is by described screw mandrel strand ear pin joint.
9. steel template system as claimed in claim 1, it is characterized in that: described heel brace is angle steel, described heel brace and ground adopt locked with bolts.
10. steel template system as claimed in claim 1, is characterized in that: described steel form external surface is vertically provided with reinforcing rib side by side, is laterally provided with side by side and strengthens logical beam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183795.XA CN103276748B (en) | 2013-05-17 | 2013-05-17 | Steel template system used for subway foundation pit supporting beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310183795.XA CN103276748B (en) | 2013-05-17 | 2013-05-17 | Steel template system used for subway foundation pit supporting beam |
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| CN103276748A CN103276748A (en) | 2013-09-04 |
| CN103276748B true CN103276748B (en) | 2015-05-20 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103572710B (en) * | 2013-10-30 | 2016-04-20 | 姚超 | Main rope of suspension bridge steel wire lapping repair method and bridging assembly thereof |
| CN103967050B (en) * | 2014-01-29 | 2015-05-20 | 广州机施建设集团有限公司 | Construction system of subway station |
| CN109667418B (en) * | 2019-01-30 | 2024-04-26 | 煤炭工业合肥设计研究院有限责任公司 | Template platform of beam column integration installation |
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| JP2001311247A (en) * | 2000-02-25 | 2001-11-09 | Katsuyuki Hasegawa | Construction method for concrete structure |
| CN2793162Y (en) * | 2005-06-01 | 2006-07-05 | 天津一建机施钢结构工程有限公司 | Symmetrical steel supporting structure with multiple diagonal bracings and large space |
| KR100794677B1 (en) * | 2007-08-07 | 2008-01-11 | (주)영신디엔씨 | The underground soil retaining wall structure for large-scale activity space securement and this construction technique |
| CN202157329U (en) * | 2011-07-18 | 2012-03-07 | 浙江海天建设集团有限公司 | Branch mold device for occluded pile guide wall |
| CN202483170U (en) * | 2012-03-21 | 2012-10-10 | 叶长青 | Template structure of concrete foundation beam |
| CN203320552U (en) * | 2013-05-17 | 2013-12-04 | 广州机施建设集团有限公司 | Steel formwork system for metro foundation pit supporting beam |
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2013
- 2013-05-17 CN CN201310183795.XA patent/CN103276748B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5615499A (en) * | 1995-04-17 | 1997-04-01 | Mcguire; Christopher J. | Method of and apparatus for trenching |
| JP2001311247A (en) * | 2000-02-25 | 2001-11-09 | Katsuyuki Hasegawa | Construction method for concrete structure |
| CN2793162Y (en) * | 2005-06-01 | 2006-07-05 | 天津一建机施钢结构工程有限公司 | Symmetrical steel supporting structure with multiple diagonal bracings and large space |
| KR100794677B1 (en) * | 2007-08-07 | 2008-01-11 | (주)영신디엔씨 | The underground soil retaining wall structure for large-scale activity space securement and this construction technique |
| CN202157329U (en) * | 2011-07-18 | 2012-03-07 | 浙江海天建设集团有限公司 | Branch mold device for occluded pile guide wall |
| CN202483170U (en) * | 2012-03-21 | 2012-10-10 | 叶长青 | Template structure of concrete foundation beam |
| CN203320552U (en) * | 2013-05-17 | 2013-12-04 | 广州机施建设集团有限公司 | Steel formwork system for metro foundation pit supporting beam |
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Address after: 510115 Yuexiu District, Guangzhou Province, south of the road embankment, No. two, No. 28, No. Co-patentee after: Guangzhou Xinqiao Construction Engineering Co., Ltd. Patentee after: Guangzhou Machine Facilities Construction Group Co.,Ltd. Address before: 510115 Yuexiu District, Guangzhou Province, south of the road embankment, No. two, No. 28, No. Co-patentee before: Guangzhou Xinqiao Building Labour Service Co., Ltd. Patentee before: Guangzhou Machine Facilities Construction Group Co.,Ltd. |