CN102367652B - Structure of standard steel forms for constructing thin-wall high pier groups with four sides being variable cross sections by form turnover - Google Patents
Structure of standard steel forms for constructing thin-wall high pier groups with four sides being variable cross sections by form turnover Download PDFInfo
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Abstract
The invention discloses a structure of standard steel forms for constructing thin-wall high pier groups with four sides being variable cross sections by form turnover. The structure is characterized in that each standard steel form comprises standard forms in the transverse direction of a bridge 1, standard forms in the longitudinal direction of the bridge 2 and slope reducing forms 3; the slope reducing forms 3 are arranged at the corners between the standard forms in the transverse direction of the bridge 1 and the standard forms in the longitudinal direction of the bridge 2; the heights of the three types of forms are all equal to the height L of a single construction section; the number of modulus sections of the slope reducing forms 3 is equal to group height h/single construction section height L; the slope ratio of the slope reducing forms 3 is equal to the slope ratio of pier bodies and the slope ratio i of the high pier groups; and the top width An and Bn of each slope reducing form increases progressively from top to bottom based on single construction section height L/pier body slope ratio i width. The structure can effectively solve the problems of large number of intermediate form blocks, high amount of processing, high dismounting frequency, labor and time wasting and multifarious construction processes of the existing forms adopting form turnover and has high construction efficiency and good formed high pier appearance quality.
Description
Technical field
The tall pier and thin wall group who the present invention relates to a kind of variable cross-section turns over the structure of method constructing and overhanging model template.
Background technology
At present, no matter be high-speed railway or speedway, high pier long span bridge is more and more, and high pier construction speed is restricting the entirety duration, and how especially high pier group's construction, guarantee the complete pier shaft of good and fast construction, and the quality of pier body formwork plays conclusive effect.Current high pier construction has been adopted and has been turned over modulus method, creeping formwork method, slip-form, afterwards both because disposable have high input general only for the few bridge of the high quantity of pier, and high pier group construct general adopt steel form to turn over method constructing and overhanging model in the majority.The shortcoming of turning over method constructing and overhanging model is that to have built pier shaft concrete presentation quality be not fine, perpendicular, horizontal template seam obviously, especially the high pier of variable cross-section, variable cross-section pier body formwork design at present adopts stripping method to reach the in the majority of variable cross-section, because method vertical formwork seam for this reason has a strong impact on the presentation quality of pier shaft too much, and when every joint construction, all to therefrom split out several little templates, relatively waste time and energy.
Summary of the invention
The technical problem that the present invention solves is: the structure that tall pier and thin wall group's over-form construction standard steel template that a kind of four sides is variable cross-section is provided, this reasonable in design, simple and practical and easy to operate, deficiencies such as can effectively solving that the intermediate die plate piecemeal quantity that existing template of turning over mould exists is many, processing capacity large, dismantle often, time-consuming, working procedure is numerous and diverse and the high pier presentation quality of institute's moulding is poor.
In order to solve described technical problem, the present invention takes following technical scheme: the accurate steel form of every feast-brand mark comprises direction across bridge standard form, vertical bridge is to standard form, closing slope template, closing slope template-setup at direction across bridge standard form and vertical bridge to the corner between standard form, direction across bridge standard form, vertical bridge is to standard form, the height of closing slope template is identical and equal single construction joint height L, the mono-construction joint of the modulus joint=group height h ÷ height L of closing slope template, ratio of slope=pier shaft ratio of slope=high pier the group's of closing slope template ratio of slope i, every joint closing slope template top width An, Bn increases progressively by the width of the height L ÷ pier shaft ratio of slope i of single construction joint from top to bottom.
Every described closing slope template connects into an entirety by two faces of same corner.
Direction across bridge standard form, vertical bridge need to have two construction joints to standard form by over-form construction, and two direction across bridge standard forms of every joint template front-back, two vertical bridges of left and right face are distinguished identical to the size of standard form; Direction across bridge standard form, vertical bridge are respectively A ', B ' to the width of standard form, and the width of closing slope template is followed successively by A1 from top to bottom to A7.
It is more than the structure by pier top template group standard steel template.
For the structure of the non-standard steel template by pier top template group, this standard steel template also comprises little template, and little template-setup is at the side of closing slope template, and every, every joint arranges 1, and the height of little template is single construction joint height L.
The width of little template is C, C=(group height h ÷ pier shaft ratio of slope i) × 2.
The quantity of little template is direction across bridge standard form, the vertical bridge quantity sum to standard form.
Above technical scheme, refers to the structure that is tall pier and thin wall group's over-form construction steel form of variable cross-section all around on four sides.
Reasonable in design of the present invention, simple and practical and easy to operate, the problem of can effectively solve that the intermediate die plate piecemeal quantity that existing template of turning over mould exists is many, processing capacity large, dismantle often, time-consuming, working procedure is numerous and diverse, efficiency of construction is high, and the high pier presentation quality of moulding is good.
Accompanying drawing explanation
Fig. 1 is the direction across bridge elevation by pier backform plate group structure;
Fig. 2 leans on the vertical bridge of pier backform plate group structure to elevation;
Fig. 3 is the top profile by pier backform plate group structure;
Fig. 4 is the non-top profile by pier backform plate group structure;
Fig. 5 is the non-direction across bridge elevation by pier backform plate group structure;
Fig. 6 is that the non-vertical bridge by pier backform plate group structure is to elevation;
Fig. 7 is drawing, the front view of direction across bridge standard form 1;
Fig. 8 is drawing, the top view of direction across bridge standard form 1;
Fig. 9 is drawing, the front view of vertical bridge to standard form 2;
Figure 10 is drawing, the top view of vertical bridge to standard form 2;
Figure 11 is drawing, the front view of little template 4;
Figure 12 is drawing, the top view of little template 4;
Figure 13 is the drawing of closing slope template 3;
Figure 14 is A-A view of Figure 13.
Figure 15 is B-B view of Figure 13.
The specific embodiment
Embodiments of the invention: the accurate steel form of every feast-brand mark comprises direction across bridge standard form 1, vertical bridge is to standard form 2, closing slope template 3, closing slope template 3 is arranged on direction across bridge standard form 1 and vertical bridge to the corner between standard form 2, direction across bridge standard form 1, vertical bridge is to standard form 2, the height of closing slope template 3 is identical and equal single construction joint height L, the mono-construction joint of the modulus joint=group height h ÷ height L of closing slope template 3, ratio of slope=pier shaft ratio of slope=high pier the group's of closing slope template 3 ratio of slope i, every joint closing slope template top width An, Bn increases progressively by the width of the height L ÷ pier shaft ratio of slope i of single construction joint from top to bottom.At the bottom of " from top to bottom " at this place refers to from Dun Ding to pier, as schematically shown in Figure 1, 2.
Every closing slope template 3 connects into an entirety by two faces of same corner.
Direction across bridge standard form 1, vertical bridge need to have two construction joints to standard form 2 by over-form construction, and two direction across bridge standard forms 1 of every joint template front-back, two vertical bridges of two faces in left and right are distinguished identical to the size of standard form 2; Direction across bridge standard form 1, vertical bridge are respectively A ', B ' to the width of standard form 2, and the width of closing slope template 3 is followed successively by A1 from top to bottom to A7.At the bottom of " from top to bottom " at this place refers to from Dun Ding to pier, as schematically shown in Figure 1, 2.
For the structure of the non-standard steel template by pier top template group, as shown in Figure 3,4 views, this standard steel template also comprises little template 4, little template 4 is arranged on the side of closing slope template 3, every, every joint arranges 1, be connected to standard form 2 with direction across bridge standard form 1, vertical bridge respectively, the height of little template 4 is single construction joint height L.
The width of little template 4 is C, C=(group height h ÷ pier shaft ratio of slope i) × 2.
The quantity of little template 4 is direction across bridge standard form 1, the vertical bridge quantity sum to standard form 2.
Illustrate the application of above technical scheme below.
64 of the total Thin-walled Hollow Piers of certain bridge, amount to the high 5400m of pier, the average high H=84m of pier, all around the gradient of variable cross-section is i:1=70:1, whole pier top transverse and longitudinal sizes are A=5m, B=2.2m, pier shaft amplifies through cushion cap top at the bottom of from Dun Ding to pier gradually by ratio of slope 70:1, the sections height of construction is L=3m.According to above data, the high pier group of this variable cross-section turns over the formwork structure employing group height h=21m of method constructing and overhanging model, and this group template is made up of to standard form 2 21 ÷ 3=7 joint closing slope templates 3 and the high bulk direction across bridge of two joint 3m standard form 1, vertical bridge.
The closing slope template 3 of a template group has 7 moduluses joint, and every joint template has 8 faces to need closing slope, takes closing slope punching block that two faces of same corner are processed into an overall L-type for supertronic when design.The first segment top width calculating from top to bottom according to closing slope template according to this number of cases is A1=15cm, B1=15cm, and bottom width is A1 '=19.3cm, B1 '=19.3cm; Second section top width is that A2=19.3cm, B2=19.3cm bottom width are A2 '=23.6cm, B2 '=23.6cm; Every joint closing slope mould top width increases progressively by height L (getting 3m) ÷ pier shaft gradient i (the getting 70)=Δ of single construction joint (obtaining 4.3cm) from top to bottom, Section three to Section seven top width is An=[15+ (n-1) * 4.3] cm, Bn=[15+ (n-1) * 4.3] cm, bottom width is An '=(15+n*4.3) cm, Bn '=(15+n*4.3) cm, and n gets 3 successively ... 7.Every joint has 4 angles to need closing slope, and every group needs 4 × 7=28 piece closing slope mould (3) altogether.
The direction across bridge standard form 1 of a template group, vertical bridge need to have two construction joints to standard form 2 by turning over method constructing and overhanging model, and two direction across bridge standard forms 1 before and after every joint template, the vertical bridge in two of left and right are identical respectively to the size of standard form 2.According to this number of cases certificate, the template that front and back are two anyhow size is A ' × L=4.7m × 3m, needs altogether 4; The template that left and right is two anyhow size is B ' × L=1.9m × 3m, needs altogether 4.These 8 bulk standard forms are exchanged use up and down at the construction pier shaft width range of this group.Need construction from Dun Ding down beyond 21m when scope template packet size, pier pushes up outside lower second (21m-42m) boundary of works area, at first group in length and breadth on the basis of size, increase a C1=h (getting 21m) ÷ i (getting 70) × 2=60cm, the little template 4 of L=3m at each.The 3rd group (42-63m), the 4th group (63-84m), the 5th group (84-105m) ..., be the template of uploading successively each side increase C1=60cm, a L=3m on the basis of upper group.And above group template is in the pier High variation of construction, the closing slope mould at four angles does not need conversion in the size of correspondence group position, can recycle always, and even the highly construction of staggering of 3 pier studs can be used this group change slope mould jointly.
Claims (5)
1. a four sides is the structure of tall pier and thin wall group's over-form construction standard steel template of variable cross-section, it is characterized in that: the accurate steel form of every feast-brand mark comprises direction across bridge standard form (1), vertical bridge is to standard form (2), closing slope template (3), closing slope template (3) is arranged on direction across bridge standard form (1) and vertical bridge to the corner between standard form (2), direction across bridge standard form (1), vertical bridge is to standard form (2), the height of closing slope template (3) is identical and equal single construction joint height L, the mono-construction joint of the modulus joint=group height h ÷ height L of closing slope template (3), ratio of slope=pier shaft ratio of slope=high pier the group's of closing slope template (3) ratio of slope i, every joint closing slope template top width An, Bn increases progressively by the width of the height L ÷ pier shaft ratio of slope i of single construction joint from top to bottom, this standard steel template also comprises little template (4), and little template (4) is arranged on the side of closing slope template (3), and every, every joint arranges 1, and the height of little template (4) is single construction joint height L.
2. four sides according to claim 1 is the structure of tall pier and thin wall group's over-form construction standard steel template of variable cross-section, it is characterized in that: every closing slope template (3) connects into an entirety by two faces of same corner.
3. four sides according to claim 1 is the structure of tall pier and thin wall group's over-form construction standard steel template of variable cross-section, it is characterized in that: direction across bridge standard form (1), vertical bridge need to have two construction joints to standard form (2) by over-form construction, and two direction across bridge standard forms (1) of every joint template front-back, two vertical bridges of left and right face are distinguished identical to the size of standard form (2); Direction across bridge standard form (1), vertical bridge are respectively A ', B ' to the width of standard form (2), and the width of closing slope template (3) is followed successively by A1 from top to bottom to A7.
4. four sides according to claim 1 is the structure of tall pier and thin wall group's over-form construction standard steel template of variable cross-section, it is characterized in that: the width of little template (4) is C C=(group height h ÷ pier shaft ratio of slope i) × 2.
5. four sides according to claim 1 is the structure of tall pier and thin wall group's over-form construction standard steel template of variable cross-section, it is characterized in that: the quantity of little template (4) is direction across bridge standard form (1), the vertical bridge quantity sum to standard form (2).
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| CN105672121B (en) * | 2016-03-28 | 2018-01-26 | 中国水利水电第五工程局有限公司 | A kind of support meanss of tapered pier |
| CN105839545A (en) * | 2016-05-16 | 2016-08-10 | 中铁十六局集团第五工程有限公司 | One-way variable-cross-section adjustable turnover formwork and construction method thereof |
| CN106639312B (en) * | 2016-10-21 | 2019-01-04 | 国网山东省电力公司经济技术研究院 | A kind of adjustable end fitting of combined large steel model for wall |
| CN107503289B (en) * | 2017-08-27 | 2023-08-18 | 保利新联爆破工程集团有限公司 | Oblique bridge deck template device |
| CN107829370B (en) * | 2017-11-07 | 2019-02-15 | 中国十九冶集团有限公司 | High pier is from climbing liquid press to turn over molds construction technology |
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Application publication date: 20120307 Assignee: Mechanization engineering Co., Ltd of group of ZhongTie No.5 bureau Assignor: China Railway five Bureau (Group) Co., Ltd.|China Railway five Bureau Group mechanized engineering Co., Ltd. Contract record no.: 2015430000120 Denomination of invention: Structure of standard steel forms for constructing thin-wall high pier groups with four sides being variable cross sections by form turnover Granted publication date: 20140514 License type: Exclusive License Record date: 20150728 |
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