CN201128881Y - Preformed supporting structure in bent cap construction - Google Patents

Preformed supporting structure in bent cap construction Download PDF

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Publication number
CN201128881Y
CN201128881Y CNU2007201901655U CN200720190165U CN201128881Y CN 201128881 Y CN201128881 Y CN 201128881Y CN U2007201901655 U CNU2007201901655 U CN U2007201901655U CN 200720190165 U CN200720190165 U CN 200720190165U CN 201128881 Y CN201128881 Y CN 201128881Y
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CN
China
Prior art keywords
reservation
supporting
bent cap
pier stud
construction
Prior art date
Application number
CNU2007201901655U
Other languages
Chinese (zh)
Inventor
朱金坤
连佳机
王冬恒
Original Assignee
中交第一公路工程局有限公司
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.)
Filing date
Publication date
Application filed by 中交第一公路工程局有限公司 filed Critical 中交第一公路工程局有限公司
Priority to CNU2007201901655U priority Critical patent/CN201128881Y/en
Application granted granted Critical
Publication of CN201128881Y publication Critical patent/CN201128881Y/en

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Abstract

The utility model relates to a reserved supporting structure in the coping construction. The reserved supporting structure includes a pier column, and at least two corresponding reserved tank chambers, which are at the same horizontal height, are respectively arranged at the positiones of the front and rear sides of the upper part of the pier column, which are a certain distance away from the top of the pier column; a steel supporting component is arranged in each reserved tank chamber and extended out of the reserved tank chamber to form an extended section, and the shapes of the steel supporting components match the shapes of the reserved tank chambers; a support bearing a coping template is bridged on the extended sections. The support is supported by the supporting components arranged in the reserved tank chambers of the pier column to form the supporting structure of the utility model, so the supporting structure has high bearing capability; meanwhile, the supporting structure is characterized in simple structure, easy construction and low cost and is applicable to a circular column, a rectangular column and other irregular pier columns, and after construction, the supporting components can be disassembled in order not to affect the appearance of the pier column.

Description

Reservation formula braced structures in the bent cap construction
Technical field
The utility model is the temporary support structure that is used on the bridge pier column about a kind of, relates in particular to the reservation formula braced structures in a kind of bent cap construction.
Background technology
In bridge construction process, after having finished pier stud construction, when carrying out the bent cap construction, need set up interim fastening earlier, the template of bent cap is supported temporarily.At present, the interim fastening of bent cap mainly contains following several:
One, full framing: promptly adopt and land full framing, on support, lay template then.This interim support has following defective: 1) higher to the ground requirement for bearing capacity, should carry out cure process for the ground of bearing capacity difference, and especially soft base if deal with improperly, will cause the differential settlement of support ground, influences the bent cap construction quality; 2) the ground processing is long with the erection construction cycle of support, and needs piling prepressing, and construction speed is slower, needs a large amount of frame pipes, fastener etc., and cost is higher; 3) require the job site must not have obstruction,, then can't use this kind fastening for the job site that obstruction is arranged; 4) bearing capacity of this full framing is limited.5) be not suitable for high pier capping beam construction.
Two, anchor ear: promptly on the pier stud under the bent cap, overlap steel plate hoop, tighten the splice bolt of cuff, utilize cuff to set up support then and lay template.This interim support scope of application is narrower, only is suitable for when pier stud is cylinder or rectangle, and requires between post and the post spacing little.Because the anchor ear total inner surface is all as the rubbing surface that contacts with pier stud, the inner surface of this anchor ear need have higher processing precision corresponding to the external surface of pier stud, could guarantee fitting tightly between the anchor ear inner surface and pier stud external surface in use, to form frictional force.But the reason that is limited to machining accuracy, the inner surface of anchor ear often are difficult to fit fully with the external surface of pier stud, cause actual fitting tightly and effective rubbing surface of forming is smaller, thereby make the frictional force of actual formation less, have reduced the actual carrying capacity of anchor ear.
Three, pre-buried steel structure: i.e. pre-embedded steel slab in pier stud, steel plate and channel-section steel, i iron weld, and set up girder thereon and lay template.This interim support is higher to the welding quality requirement, and after bridge construction finishes, needs can cause leaving a trace on bridge pier to the cutting process of pre-buried steel member, influences the pier stud outward appearance.
Therefore many defectives in view of above-mentioned existing temporary support structure exists, are necessary to provide a kind of novel temporary support structure, overcome the defective of the interim fastening in the existing bridge bent cap construction.
The utility model content
The purpose of this utility model is to provide the reservation formula braced structures in a kind of bridge bent cap construction, to overcome the defective of the interim fastening in the existing bridge bent cap construction.This braced structures is convenient to construction, and cost is low, does not influence the outward appearance of pier stud after the construction.
Another purpose of the present utility model is to provide the reservation formula braced structures in a kind of bridge bent cap construction, and this braced structures not only can be applied to two piers, also can be applicable to only pier, and is applicable to circle, rectangle and other special-shaped pier studs.
The purpose of this utility model is to realize like this, reservation formula braced structures in a kind of bent cap construction, this braced structures comprises pier stud, in the forward and backward side in described pier stud top a distance, top at a distance of pier stud, at least be respectively equipped with the reservation case chamber of a correspondence, the reservation case chamber of the forward and backward side correspondence of described pier stud is positioned at same level height; The indoor supporting member that is provided with of described reservation case, and supporting member extends and reserves one overhanging section of the outdoor formation of case, and described supporting member is complementary with the shape of reserving the case chamber; Be erected with the support of carrying bent cap template on described overhanging section.
In a better embodiment of the present utility model,, be respectively equipped with the reservation case chamber of two or more correspondences in the forward and backward side in described pier stud top a distance, top at a distance of pier stud.
In a better embodiment of the present utility model, described reservation case chamber is made of steel bushing.
In a better embodiment of the present utility model, be positioned on the pier stud and reserve the steel mesh reinforcement that case chamber downside is provided with reinforcement.
In a better embodiment of the present utility model, the reservation case chamber of the forward and backward side correspondence of described pier stud connects mutually, constitutes a preformed hole.
In a better embodiment of the present utility model, described supporting member is one to be arranged in the cylinder in the preformed hole; Described cylinder shape of cross section is identical with the preformed hole shape of cross section.
In a better embodiment of the present utility model, described overhanging section development length is greater than the width of described support.
In a better embodiment of the present utility model, also be provided with a bracing or strutting arrangement between described overhanging section and support.
In a better embodiment of the present utility model, described bracing or strutting arrangement is made of a rectangular sleeve, a container and a back-up block; Described rectangular sleeve is sheathed on overhanging section, and end face is provided with a gripper shoe, and described container is set on gripper shoe, is equiped with the close sand of compacting in the container, and described back-up block is set on the described close sand; The lower sidewall of described container is provided with an opening by the cock body sealing.In a better embodiment of the present utility model, described rectangular sleeve, container and back-up block are made by shaped steel.
From the above mentioned, the reservation formula braced structures in the bent cap of the present utility model construction has overcome the defective of the interim fastening in the existing bridge bent cap construction; Braced structures of the present utility model is to constitute by the described support of support member support that is arranged in the pier stud reservation case chamber, therefore, can have higher capacity; Simultaneously, the simple structure of this braced structures is convenient to construction, and cost is low, and applicable to circle, rectangle and other special-shaped pier studs, supporting member can be removed after the construction, can not influence the outward appearance of pier stud.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1: be braced structures schematic diagram of the present utility model.
Fig. 2: be the lateral view of Fig. 1.
Fig. 3: when designing for two piers, the braced structures schematic diagram of pier stud one side.
Fig. 4: for reserving the schematic diagram that case chamber and supporting member are provided with the position in the utility model.
Fig. 5: for reserving a structural representation of case chamber and supporting member.
Fig. 6: for reserving another structural representation of case chamber and supporting member.
Fig. 7: for reserving a structural representation again of case chamber and supporting member.
Fig. 8: be the structural representation of bracing or strutting arrangement in the utility model.
Fig. 9: be the structural representation of another embodiment of the utility model.
Figure 10: be the structural representation of the another embodiment of the utility model.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
Embodiment 1
As shown in Figure 1 and Figure 2, reservation formula braced structures in a kind of bent cap construction, this braced structures comprises pier stud 1, in the forward and backward side in described pier stud 1 top a distance, top at a distance of pier stud, be respectively equipped with the reservation case chamber 11,12 of a correspondence, the reservation case chamber 11 and 12 of described pier stud 1 forward and backward side correspondence is positioned at same level height; Be provided with supporting member 21 and 22 in the described reservation case chamber 11 and 12, and supporting member 21 and 22 extends and reserve case chamber 11 and 12 and constitute one overhanging section 211 and 221 outward, described supporting member 21 and 22 is complementary with the shape of reservation case chamber 11 and 12; Described overhanging section 211 and 221 on be erected with the support (not shown) of carrying bent cap template.
In the present embodiment, because in the forward and backward side in described pier stud 1 top a distance, top at a distance of pier stud, be respectively equipped with the reservation case chamber 11,12 of a correspondence, therefore, present embodiment is useful in the bridge construction of two pier studs (as shown in Figure 3), be that described rack beam 4 is across the (front side of only representing pier stud 1 on overhanging section 211 of two pier studs 1, the rack beam 4 of rear side is across on overhanging section 221 of two pier studs 1), so that rack beam 4 steady rests are located on the pier stud 1, and guarantee that follow-up support is set up and the concrete construction is carried out smoothly.In addition, the forward and backward side direction of pier stud described in the present embodiment 1 is that pontic 5 bearing of trends according to bridge define, that is: pier stud 1 forward and backward side line direction is the bearing of trend of pontic 5; Described overhanging section 211 and the 221 orientation situations that are provided with on pier stud 1 see also (structure of only representing the side pier stud in two pier bridges among the figure) shown in Figure 4.
Reservation formula braced structures in the bent cap of the present utility model construction has overcome the defective of the interim fastening in the existing bridge bent cap construction; Braced structures of the present utility model is to constitute by the described support of support member support that is arranged in the pier stud reservation case chamber, and therefore, braced structures of the present utility model can have higher capacity; Simultaneously, the simple structure of this braced structures is convenient to construction, and cost is low, and applicable to circle, rectangle and other special-shaped pier studs, supporting member can be removed after the construction, can not influence the outward appearance of pier stud.
In a better embodiment of the present utility model, described reservation case chamber 11 (reserving case chamber 11 with the front side is that example is described, and it is identical with the front side that rear side is reserved case chamber 12) is made of steel bushing 13.Promptly before pier stud 1 carries out concrete pouring, one steel bushing 13 is set earlier, carries out concrete pouring then, in pier stud 1 moulding, form described reservation case chamber 11 by steel bushing 13 in the position of reserving case chamber 11.
Further, influence follow-up construction, in a better embodiment of the present utility model, be positioned at the steel mesh reinforcement 14 (as shown in Figure 1) that reservation case chamber 11 and 12 lower position are provided with reinforcement on the pier stud 1 in order to prevent to reserve case chamber 11,12 bearing strengths deficiency.
In the present embodiment, (reserving case chamber 11 with the front side is that example is described in described reservation case chamber 11, it is identical with the front side that rear side is reserved case chamber 12) and the respective cross-sectional shapes unanimity of supporting member 21, be provided with certain interval (best) between supporting member 21 outer walls and reservation case chamber 11 inwalls, reserve in the case chamber 11 so that supporting member 21 is inserted for about 5mm; The cross section of described supporting member 21 can be made as circle (as shown in Figure 5), rectangle (as shown in Figure 6) or polygon shapes such as (scheming not shown).
In order to save rolled steel dosage, described supporting member 21 also can be made other shapes, planform as shown in Figure 7.
In a kind of preferred embodiment of present embodiment, described supporting member 21 adopts 2 " [20 " shaped steel butt joints to be welded into " " shape, to form described rectangular cross section.The welding rod specification that welding is used is not less than the E50 type, will do welding piece before the welding and can weld by mechanical test is qualified.The load that cross dimensions should bear according to supporting member 21 designs definite.
In a better embodiment of the present utility model, skid off for preventing support, described overhanging section 211 development length is greater than the width of described support, and in the present embodiment, overhanging section 211 development length exceeds support 10cm.
In the present embodiment, supporting member is curved by cutting, the resistance tensile stress designs; Because therefore overhanging section shorter of supporting member, can not carry out deformation analysis.Further, the safety factor of supporting member design is greater than 6, and described safety factor is the ratio of design bearing capacity and actual carrying capacity.
In construction, stably set up on overhanging section 211 of supporting member 21 in order to make support, simultaneously, further for behind the bent cap casting and constructing, be convenient to support and bent cap template are removed from supporting member 21, in a better embodiment of the present utility model, as shown in Figure 8, also be provided with a bracing or strutting arrangement 3 between described overhanging section 211 and support.
Described bracing or strutting arrangement 3 is made of a rectangular sleeve 31, a container 32 and a back-up block 33; Described rectangular sleeve 31 is sheathed on 21 overhanging sections 211 of the supporting members, the end face of rectangular sleeve 31 is provided with a gripper shoe 311, described container 32 is set on gripper shoe 311 again, be equiped with the close sand 321 of compacting in the container 32, described back-up block 33 is set on the described close sand 321, the crossbeam 4 of support is set on described back-up block 33; The lower sidewall of described container 32 is provided with an opening 323 by cock body 322 sealings.Behind the bent cap casting and constructing, by opening on the opening 323, the close sands 321 in the container 32 are flowed out, at this moment from opening 323 cock body 322 of container 32, the position of back-up block 33 reduces owing to the close sand in the container 32 321 reduces, and makes between support and bent cap template and the bent cap and produces the gap; Therefore, the support that can be convenient to will be on the back-up block 33 to be provided with is removed.
Further, in the present embodiment, described rectangular sleeve 31, container 32 and back-up block 33 all can be made by shaped steel.Rectangular sleeve 31 can be made by shaped steel, and container 32 also can be made by seamless steel pipe, and gripper shoe 311 is a steel plate; Back-up block 33 also can be made by seamless steel pipe, and the upper and lower side at this seamless steel pipe sets firmly steel plate again.
Reservation formula braced structures in the bent cap construction in the present embodiment is to be positioned at same level height reservation case chamber 11 and 12 corresponding setting of the forward and backward side of pier stud 1, and this kind structure is applicable to the pier stud of diameter greater than 3m.
Embodiment 2
Structure and principle and embodiment 1 are basic identical in the present embodiment, and its difference is as shown in Figure 9, and when the diameter of pier stud 1 during less than 3m, the reservation case chamber 11 and 12 of described pier stud 1 forward and backward side correspondence can connect mutually, constitutes a preformed hole 15.In such cases, described supporting member is one to be arranged in the cylinder 23 in the preformed hole 15; Described cylinder 23 shape of cross sections are identical with preformed hole 15 shape of cross sections; 15 of cylinder 23 and preformed holes leave certain interval (best about 5mm), so that cylinder 23 is arranged in the preformed hole 15.
Other structures, operating principle and the beneficial effect of present embodiment are identical with embodiment 1, do not repeat them here.
Embodiment 3
Structure and principle and embodiment 1 are basic identical in the present embodiment, its difference is as shown in figure 10, when bridge design is single pier structure, for can being stablized, sets up on described supporting member on support, at a distance of a distance, top of pier stud, be respectively equipped with reservation case chamber 11,12 (not shown)s and 11 of two correspondences ' and 12 ' (not shown) in the forward and backward side in described pier stud 1 top; Reserve in the case chamber 11 and be provided with supporting member 21, reserve case chamber 11 ' in be provided with supporting member 21 '.
Shown in Figure 10, be to reserve case chamber 11 and 11 ' be the example explanation with two of pier stud 1 front side.Rack beam 4 can be erected at supporting member 21 and 21 ' overhanging section on, such structure can be stablized support and set up under the situation of single pier.
As another embodiment of present embodiment,, also can be respectively equipped with reservation case chamber (scheming not shown) corresponding more than two in the forward and backward side in described pier stud 1 top a distance, top at a distance of pier stud.
Other structures, operating principle and the beneficial effect of present embodiment are identical with embodiment 1, do not repeat them here.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.

Claims (10)

1, the reservation formula braced structures in a kind of bent cap construction, it is characterized in that: this braced structures comprises pier stud, in the forward and backward side in described pier stud top a distance, top at a distance of pier stud, at least be respectively equipped with the reservation case chamber of a correspondence, the reservation case chamber of the forward and backward side correspondence of described pier stud is positioned at same level height; Described reservation case is indoor to be provided with the steel supporting member, and supporting member extends and reserve one overhanging section of the outdoor formation of case, and described supporting member is complementary with the shape of reserving the case chamber; Be erected with the support of carrying bent cap template on described overhanging section.
2, the reservation formula braced structures in the bent cap construction as claimed in claim 1 is characterized in that: in the forward and backward side in described pier stud top a distance, top at a distance of pier stud, be respectively equipped with the reservation case chamber of two or more correspondences.
3, the reservation formula braced structures in the bent cap construction as claimed in claim 1 or 2, it is characterized in that: described reservation case chamber is made of steel bushing.
4, the reservation formula braced structures in the bent cap construction as claimed in claim 1 or 2 is characterized in that: be positioned on the pier stud and reserve the steel mesh reinforcement that case chamber downside is provided with reinforcement.
5, the reservation formula braced structures in the bent cap construction as claimed in claim 1 or 2, it is characterized in that: the reservation case chamber of the forward and backward side correspondence of described pier stud connects mutually, constitutes a preformed hole.
6, the reservation formula braced structures in the bent cap as claimed in claim 5 construction is characterized in that: described supporting member is one to be arranged in the cylinder in the preformed hole; Described cylinder shape of cross section is identical with the preformed hole shape of cross section.
7, the reservation formula braced structures in the bent cap construction as claimed in claim 1, it is characterized in that: described overhanging section development length is greater than the width of described support.
8, the reservation formula braced structures in the bent cap as claimed in claim 1 construction is characterized in that: also be provided with a bracing or strutting arrangement between described overhanging section and support.
9, the reservation formula braced structures in the bent cap construction as claimed in claim 8, it is characterized in that: described bracing or strutting arrangement is made of a rectangular sleeve, a container and a back-up block; Described rectangular sleeve is sheathed on overhanging section, and end face is provided with a gripper shoe, and described container is set on gripper shoe, is equiped with the close sand of compacting in the container, and described back-up block is set on the described close sand; The lower sidewall of described container is provided with an opening by the cock body sealing.
10, the reservation formula braced structures in the bent cap construction as claimed in claim 9, it is characterized in that: described rectangular sleeve, container and back-up block are made by shaped steel.
CNU2007201901655U 2007-11-15 2007-11-15 Preformed supporting structure in bent cap construction CN201128881Y (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101922143A (en) * 2010-07-02 2010-12-22 上海市第二市政工程有限公司 Construction method of bent cap
CN101994293A (en) * 2010-11-11 2011-03-30 中铁六局集团有限公司 High pier coping construction method
CN102277835A (en) * 2011-05-10 2011-12-14 中铁九局集团有限公司 Method for constructing single-column bent cap by adopting hoop and A-frame composite system
CN102877409A (en) * 2012-09-26 2013-01-16 芜湖合建路桥机械有限公司 Pier with longitudinally fixed embedded crossbeams
CN103290783A (en) * 2013-06-02 2013-09-11 福建省华航建设工程有限公司 Bridge upright supporting bracket
CN103452049A (en) * 2013-09-15 2013-12-18 中铁一局集团有限公司 Corbel bracket for cast-in-place concrete construction at top of bridge pier
CN106894345A (en) * 2017-04-17 2017-06-27 五冶集团上海有限公司 Continuous beam end bay closing device and method
CN107190980A (en) * 2017-05-22 2017-09-22 海南职业技术学院 Armored concrete bent cap non-stand construction method and constructing device on reinforced column
CN108643047A (en) * 2018-05-18 2018-10-12 中铁十六局集团第四工程有限公司 A kind of lower support built-in fitting of large bridge bracket

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101922143A (en) * 2010-07-02 2010-12-22 上海市第二市政工程有限公司 Construction method of bent cap
CN101922143B (en) * 2010-07-02 2012-02-01 上海市第二市政工程有限公司 Construction method of bent cap
CN101994293A (en) * 2010-11-11 2011-03-30 中铁六局集团有限公司 High pier coping construction method
CN101994293B (en) * 2010-11-11 2012-08-22 中铁六局集团有限公司 High pier coping construction method
CN102277835A (en) * 2011-05-10 2011-12-14 中铁九局集团有限公司 Method for constructing single-column bent cap by adopting hoop and A-frame composite system
CN102877409A (en) * 2012-09-26 2013-01-16 芜湖合建路桥机械有限公司 Pier with longitudinally fixed embedded crossbeams
CN102877409B (en) * 2012-09-26 2015-12-02 芜湖合建路桥机械有限公司 A kind of band is by the bridge pier of pre-buried crossbeam longitudinally fixed
CN103290783A (en) * 2013-06-02 2013-09-11 福建省华航建设工程有限公司 Bridge upright supporting bracket
CN103452049B (en) * 2013-09-15 2015-08-19 中铁一局集团有限公司 Corbel bracket for cast-in-place concrete construction at top of bridge pier
CN103452049A (en) * 2013-09-15 2013-12-18 中铁一局集团有限公司 Corbel bracket for cast-in-place concrete construction at top of bridge pier
CN106894345A (en) * 2017-04-17 2017-06-27 五冶集团上海有限公司 Continuous beam end bay closing device and method
CN107190980A (en) * 2017-05-22 2017-09-22 海南职业技术学院 Armored concrete bent cap non-stand construction method and constructing device on reinforced column
CN108643047A (en) * 2018-05-18 2018-10-12 中铁十六局集团第四工程有限公司 A kind of lower support built-in fitting of large bridge bracket

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Granted publication date: 20081008