CN201433355Y - Hoop corbel bracket for long-span prestressed concrete bridge cantilever casting construction - Google Patents

Hoop corbel bracket for long-span prestressed concrete bridge cantilever casting construction Download PDF

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Publication number
CN201433355Y
CN201433355Y CN2009200866352U CN200920086635U CN201433355Y CN 201433355 Y CN201433355 Y CN 201433355Y CN 2009200866352 U CN2009200866352 U CN 2009200866352U CN 200920086635 U CN200920086635 U CN 200920086635U CN 201433355 Y CN201433355 Y CN 201433355Y
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CN
China
Prior art keywords
anchor ear
bracket
compound
weldingly
construction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009200866352U
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Chinese (zh)
Inventor
李密良
呙于平
吴宗庆
林宗辉
王春兰
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China First Metallurgical Group Co Ltd
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China First Metallurgical Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN2009200866352U priority Critical patent/CN201433355Y/en
Application granted granted Critical
Publication of CN201433355Y publication Critical patent/CN201433355Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a hoop corbel bracket for long-span prestressed concrete bridge cantilever casting construction, which mainly comprises two hoops (6), two support bars (4) and a combination beam, wherein the two hoops are respectively and tightly hooped on two bridge pier columns, the lower ends of the two support bars are welded and connected with support platforms on the sides of the hoops and taken as corbels, the upper ends of the two support bas are welded and connected with a lower longitudinal beam (3) of the combination beam and taken as front support points of the combination beam, the rear support point of the combination beam is a hat beam (7) connected with a bridge pier, and the combination beam is fastened and connected with a nut cap and the hat beam through a clamping bar (8) and a high-strength pull rod to form a triangular statically indeterminate structural system through mutual connection. The utility model can guarantee the construction task under theactions of all loads in the construction of the closing segments of bridge sidespans when a floor stand is incapable of being adopted under the limitation of the water depth of a bridge location, theseasonal water rise or the bearing strength of the ground and the like; and moreover, the utility model has the advantages of simple structure, low manufacturing cost, convenient construction, short construction period and the like.

Description

The working anchor ear angle-table bracket of large-span prestressed concrete bridge cantilever pouring
Technical field
The utility model relates to the interim supporting bracket that bridge construction is used, and relates to particularly that long-span bridge beam end bay abutment pier is higher, the end bay headroom is higher, end bay is in the water or anchor ear angle-table bracket that the soft foundation bearing capacity is adopted when not enough.
Background technology
Along with the continuous development of China's economic construction, under the expediting the emergence of who manages storm, domestic increasing domestic demand, special investment energetically, the development that the construction of large bridge at present is certain to advance by leaps and bounds at speedway.Stride footpath prestressed concrete cantilever glider bridge greatly, beam section between continuous girder bridge, T type firm structure bridge end bay beam-ends and the abutment pier, because of construction technology needs, must establish falsework supports, the cast-in-place construction of finishing cast-in-place beam section of template, the advantage of this job practices is: the restriction of condition such as not risen by the bridge location depth of water, seasonality or bearing capacity of foundation soil is not enough does not need to adopt floor stand, cost is lower simultaneously, and safety is good.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of anchor ear angle-table bracket is provided, this support uses when large-span prestressed concrete bridge end bay closure segment is built, rise or during the restriction of condition such as bearing capacity of foundation soil is not enough in the bridge location depth of water, seasonality guaranteeing, can't adopt floor stand construction, adopt this support can guarantee that bridge normally constructs.
The technical scheme that its technical problem of solving the utility model adopts is: this support mainly is made up of two anchor ears, two support bars and compound beam.Wherein: two anchor ear difference lock rings are on two pier columns; Two support bars, its lower end are weldingly connected as bracket with anchor ear lateral support platform respectively, and its upper end is weldingly connected with the lower transverse beam of compound beam, as the preceding strong point of compound beam; The back strong point of compound beam is the cap that links to each other with bridge pier, and compound beam is fastenedly connected by clamping bar and high-strength pull bar and nut and cap, interconnects triangularity statically-indeterminate structure system.
The utility model compared with prior art has following major advantage:
1. adopt two anchor ears, two combined I-shaped steel support bars make up beam in length and breadth before and after installing above, are welded to each other into whole steel work statically indeterminate system.Under this system, can guarantee to rise or the restriction of condition such as bearing capacity of foundation soil is not enough construction task when still guaranteeing the construction of bridge end bay closure segment in the time that floor stand can't being adopted under all load actions in the bridge location depth of water, seasonality.
2. this supporting structure is simple, and stability is high, the normal operation of guarantee construction that can be safe and reliable.
3. all plants are simple when installing, and cost is low, reduce construction cost, are convenient to construction, are not subjected to site influence, reliable construction quality, the characteristics of short construction period.
Description of drawings
Fig. 1 is the structural representation of the utility model anchor ear angle-table bracket.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the structural representation of anchor ear 6 among Fig. 1.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the vertical view of Fig. 4.
Among the figure: 1. go up longeron; 2. Two bors d's oeuveres front beam; 3. descend longeron; 4. support bar; 5. support platform; 6. anchor ear; 7. cap; 8. clamping bar; 9. high-strength pull bar; 10. rear cross beam.
The specific embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
The working anchor ear angle-table bracket of the large-span prestressed concrete bridge cantilever pouring that the utility model provides, its structure such as Fig. 1, Fig. 2 and shown in Figure 3: this support mainly is made up of two anchor ears 6, two support bars 4 and compound beam.Wherein: two anchor ear difference lock rings are on two pier columns; Two support bars, its lower end are weldingly connected as bracket with an anchor ear lateral support platform respectively, and its upper end is weldingly connected with the following longeron 3 of compound beam, as the preceding strong point of compound beam; The back strong point of compound beam is the cap 7 that links to each other with bridge pier, and compound beam is fastenedly connected by clamping bar 8 and high-strength pull bar 9 and nut and cap, interconnects triangularity statically-indeterminate structure system.It is Ф 32 finish rolling deformed bars that high-strength pull bar 9 can adopt model.
Described compound beam, it is made up of last longeron 1, Two bors d's oeuveres front beam 2, following longeron 3 and rear cross beam 10.Wherein: described longeron down, its rear end and rear cross beam 10 are weldingly connected, and the bottom of its front end and Two bors d's oeuveres front beam 2 is weldingly connected; The described longeron of going up, the top of its front end and Two bors d's oeuveres front beam 2 is weldingly connected, and its rear end 50cm rides on the cap, and posterior part rides on the rear cross beam and is weldingly connected; Rear cross beam 10 is fixed on the cap 7 by clamping bar.
Described anchor ear 6, its structure such as Fig. 4 are to shown in Figure 6: by two semicircle anchor ears with strengthen steel plate and constitute, two semicircle anchor ears close up the back by strengthening that steel plate is waled and by bolt and fixed by nut.Be provided with the support platform 5 that is weldingly connected with it in the bottom of anchor ear 6 lateral surfaces, this support platform is as the strong point of bracket lower end.
The material of described anchor ear 6 is a steel plate, is made by plate bending rolls.The internal diameter of this anchor ear is 150~250cm, is 100~20cm highly, perhaps decides according to the real size of bridge pier.
Described Two bors d's oeuveres front beam 2 can adopt two No. 56 parallel being welded of i iron.
Described clamping bar 8 can be made up of upper and lower clamping bar, and upper and lower clamping bar respectively has 4, and they are that 20a i iron Two bors d's oeuveres is made by two models.
The working anchor ear angle-table bracket of above-mentioned large-span prestressed concrete bridge cantilever pouring that the utility model provides, it is installed on the bridge pier, stress system when constructing as large-span prestressed concrete bridge cantilever pouring, under this stress system, the construction task in the time of can realizing the construction of this bridge end bay closure segment under all load actions.
Described anchor ear angle-table bracket can try the test of the skid resistance of assembly unit, reaction frame setting, anchor ear, to guarantee result of use before using.This test method is as follows:
Be chosen in and try assembly unit and pressure testing on the column of land, the frictional resistance between check anchor ear and the column.Anchor ear is oppositely installed (above-below direction is reverse) and tried assembly unit on landbridge pier stud column, its underpart is near binder top (reducing the distance between binder and the anchor ear bracket platform), and spacing is 110cm between the two.Level is installed four worker's 40 i iron combined systems on binder, is combined into reaction frame with binder.The 400t hydraulic jack is installed on the i iron combined system, slowly the primer fluid pressing system makes jack contact with anchor ear bracket support platform, check whether both locate smooth-going contact, utilize binder as reaction frame then, at the uniform velocity starting the jack pair anchor ear carries out vertical direction and up pushes up, the state that reaches 200t (4 times of safety factor) when jack checks that down anchor ear does not have distortion, non-loosening, do not produce sliding phenomenon along the post direction, proves that this anchor ear is safe and reliable.

Claims (6)

1. working anchor ear angle-table bracket of large-span prestressed concrete bridge cantilever pouring is characterized in that this support mainly is made up of two anchor ears (6), two support bars (4) and compound beam, wherein: two anchor ears respectively lock rings on two pier columns; Two support bars, its lower end are weldingly connected as bracket with anchor ear lateral support platform respectively, and its upper end is weldingly connected with the following longeron (3) of compound beam, as the preceding strong point of compound beam; The back strong point of compound beam is the cap (7) that links to each other with bridge pier, and compound beam is fastenedly connected by clamping bar (8) and high-strength pull bar and nut and cap, interconnects triangularity statically-indeterminate structure system.
2. anchor ear angle-table bracket according to claim 1, it is characterized in that described compound beam is by last longeron (1), Two bors d's oeuveres front beam (2), longeron (3) and rear cross beam (10) are formed down, wherein: described longeron down, its rear end and rear cross beam (10) are weldingly connected, and the bottom of its front end and Two bors d's oeuveres front beam (2) is weldingly connected; The described longeron of going up, the top of its front end and Two bors d's oeuveres front beam (2) is weldingly connected, and its rear end 50cm rides on the cap, and posterior part rides on the rear cross beam and is weldingly connected; Rear cross beam (10) is fixed on the cap (7) by clamping bar.
3. anchor ear angle-table bracket according to claim 1 is characterized in that: described anchor ear (6) is by two semicircle anchor ears and strengthen steel plate and constitute, and two semicircle anchor ears close up the back by strengthening that steel plate is waled and by bolt and fixed by nut.
4. anchor ear angle-table bracket according to claim 3, the internal diameter that it is characterized in that described anchor ear (6) is 150~250cm, highly is 100~20cm, material is a steel plate, is made by plate bending rolls.
5. anchor ear angle-table bracket according to claim 1 is characterized in that: Two bors d's oeuveres front longitudinal (2) adopts two No. 56 parallel being welded of i iron.
6. anchor ear angle-table bracket according to claim 1 is characterized in that: described clamping bar (8) is made up of upper and lower clamping bar, and upper and lower clamping bar respectively has 4, and they are made for the 20a i iron by model.
CN2009200866352U 2009-06-12 2009-06-12 Hoop corbel bracket for long-span prestressed concrete bridge cantilever casting construction Expired - Lifetime CN201433355Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200866352U CN201433355Y (en) 2009-06-12 2009-06-12 Hoop corbel bracket for long-span prestressed concrete bridge cantilever casting construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200866352U CN201433355Y (en) 2009-06-12 2009-06-12 Hoop corbel bracket for long-span prestressed concrete bridge cantilever casting construction

Publications (1)

Publication Number Publication Date
CN201433355Y true CN201433355Y (en) 2010-03-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101875163A (en) * 2010-06-11 2010-11-03 天津重钢机械装备股份有限公司 Assembling and welding jig frame used for bracket of bridge fabrication machine and method for fabricating bracket by using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101875163A (en) * 2010-06-11 2010-11-03 天津重钢机械装备股份有限公司 Assembling and welding jig frame used for bracket of bridge fabrication machine and method for fabricating bracket by using same
CN101875163B (en) * 2010-06-11 2012-03-14 天津重钢机械装备股份有限公司 Assembling and welding jig frame used for bracket of bridge fabrication machine and method for fabricating bracket by using same

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20100331

Effective date of abandoning: 20090612