CN207314169U - A kind of temporary T structure cantilever casting construction supporting structure - Google Patents
A kind of temporary T structure cantilever casting construction supporting structure Download PDFInfo
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- CN207314169U CN207314169U CN201721411740.XU CN201721411740U CN207314169U CN 207314169 U CN207314169 U CN 207314169U CN 201721411740 U CN201721411740 U CN 201721411740U CN 207314169 U CN207314169 U CN 207314169U
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Abstract
The utility model provides a kind of temporary T structure cantilever casting construction supporting structure, including：Outer steel shell, steel inner casing, skeleton reinforcing steel bar and packing material；The end face of the first end face of outer steel shell and the first end bay Cast-in-Situ Segment is opposite, and the end face of the second end face of outer steel shell and the second end bay Cast-in-Situ Segment is opposite；Steel inner casing is arranged in the inside of outer steel shell；Connected between outer steel shell and steel inner casing by skeleton reinforcing steel bar；Packing material is filled in the gap between outer steel shell and the steel inner casing；Two sides of outer steel shell are both provided with the groove through side.The problems such as temporary T structure cantilever casting construction provided by the utility model solves conventional method quality with supporting structure to be ensured, remove cycle length, and working at height risk is big, has the advantages that prefabricated quality is good, and assembling and disassembling is simple, and the construction time is short, operating risk is small.
Description
Technical Field
The utility model relates to a highway, railway bridge structures's construction method technical field, more specifically relates to a bearing structure is used in construction of interim T structure cantilever casting.
Background
The continuous rigid frame bridge without support is a new bridge type developed in recent years, and compared with the traditional continuous beam (rigid frame) side pier provided with movable supports, the side pier adopts a pier-beam consolidation mode. In order to better adapt to the longitudinal telescopic deformation of the temperature load main beam, the side pier adopts a double-support thin-wall pier with smaller thrust rigidity, and the main beam is only fixedly connected with one thin-wall column. Through the research on related bridges at home and abroad, the continuous rigid frame without the support has the main characteristics that: (1) the support is not arranged, the support is prevented from being damaged, the cost is saved, the later maintenance cost is low, and the circuit shutdown caused by the support replacement is avoided; (2) the anti-seismic performance is good, the horizontal force can be uniformly distributed on each pier during earthquake, and the continuous girder bridge needs to be provided with braking piers or special anti-seismic supports; (3) the pier beams are directly connected in a fixed mode, lines are continuous and bright, the whole is coordinated, and the landscape effect is good.
Due to the existence of beam seams between adjacent beams, the temporary T-shaped structures are in tension butt joint, and the beam seams in the middle must be temporarily filled. The traditional method is temporary mortar filling, and chiseling is performed after construction is completed. The method mainly aims to ensure the construction quality, is very troublesome to chive, and has long overhead working period and high risk.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned problem that exists in the prior art at least partially, the utility model provides a temporary T constructs to hang and waters bearing structure for construction.
The utility model provides a interim T constructs suspension casting bearing structure for construction, include: the steel shell, the steel inner shell, the framework steel bars and the filling materials; the first end face of the steel shell is opposite to the end face of the first side span cast-in-place section, and the second end face of the steel shell is opposite to the end face of the second side span cast-in-place section; the steel inner shell is arranged inside the steel outer shell; the steel outer shell and the steel inner shell are connected through the framework steel bars; the filling material fills a gap between the steel outer shell and the steel inner shell; two sides of the steel shell are provided with grooves penetrating through the sides.
Wherein, still include: the lifting rings are arranged at the symmetrical positions on two sides of the gravity center of the steel shell; wherein one end of the suspension ring is connected with a suspension ring anchoring nut arranged in the filling material.
Wherein, the end surface of the steel shell is provided with a through hole; the through hole sequentially penetrates through the first end face of the steel shell, the filling material and the second end face of the steel shell.
Wherein the filling material is concrete, and the strength of the concrete is not lower than C30; or the filling material is mortar, and the strength of the mortar is not lower than M30.
Wherein, still include: a reinforcing screw; one end of the reinforcing screw rod is connected with the top surface of the groove, and the other end of the reinforcing screw rod is connected with the bottom surface of the groove.
Wherein the width of the steel outer shell and the width of the steel inner shell are 10 cm-20 cm.
The steel outer shell and the steel inner shell are made of steel plates, and the thickness of each steel plate is 6-12 mm.
Wherein the cross-sectional shape of the steel inner shell is rectangular or polygonal.
To sum up, the utility model provides a temporary T constructs to hang and waters bearing structure for construction, include: the steel shell, the steel inner shell, the framework steel bars and the filling materials; the first end face of the steel shell is opposite to the end face of the first side span cast-in-place section, and the second end face of the steel shell is opposite to the end face of the second side span cast-in-place section; the steel inner shell is arranged inside the steel outer shell; the steel outer shell and the steel inner shell are connected through the framework steel bars; filling a gap between the steel outer shell and the steel inner shell with a filling material; two sides of the steel shell are provided with grooves penetrating through the sides. The utility model provides an interim T constructs to hang to water construction and uses bearing structure has solved traditional method quality and should not guarantee, demolishs the cycle length, and the big scheduling problem of high altitude construction risk has prefabricated of high quality, and the installation is demolishd simply, and construction time is short, operation risk advantage such as little.
Drawings
Fig. 1 is according to the utility model discloses a temporary T constructs suspension casting supporting structure for construction's structural schematic.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is according to the utility model discloses a temporary T constructs suspension casting supporting structure's for construction structural sketch map, as shown in fig. 1, includes: the steel shell comprises a steel shell 1, a steel inner shell 2, a framework steel bar 3 and a filling material 4; wherein,
the first end face of the steel shell 1 is opposite to the end face of the first side span cast-in-place section, and the second end face of the steel shell 1 is opposite to the end face of the second side span cast-in-place section;
the steel inner shell 2 is arranged inside the steel outer shell 1;
the steel outer shell 1 and the steel inner shell 2 are connected through the framework steel bars 3;
the filling material 4 is filled in the gap between the steel outer shell 1 and the steel inner shell 2;
two side faces of the steel shell 1 are provided with grooves penetrating through the side faces.
The inner and outer outlines of the cross section of the supporting structure are consistent with the outline of the end of the box girder;
preferably, the support structure is coated with a release agent on the side beam end interface.
Preferably, both side surfaces of the steel housing 1 are provided with grooves penetrating the side surfaces, and the shape of the grooves is a concave table shape.
The groove which is arranged on the side surface of the steel shell 1 and penetrates through the side surface and the beam end notch form a prestress tensioning construction space.
Preferably, the steel inner shell 2 is formed as a through hole extending through the support structure.
The embodiment provides a supporting structure for temporary T-shaped suspended casting construction, wherein a steel inner shell is arranged inside a steel outer shell; the steel outer shell and the steel inner shell are connected through a framework steel bar; filling the gap between the steel outer shell and the steel inner shell with a filling material; two sides of the steel shell are provided with grooves penetrating through the sides. The supporting structure for the temporary T-shaped structure suspension casting construction solves the problems that the quality of the traditional method is not guaranteed, the demolition period is long, the risk of high-altitude operation is high and the like, and has the advantages of being good in prefabrication quality, simple to install and demolish, short in construction time, small in operation risk and the like.
In another embodiment of the present invention, on the basis of the above embodiment, the present invention further includes: the lifting rings 5 are arranged at the symmetrical positions on two sides of the gravity center of the steel shell 1; wherein,
one end of the suspension ring 5 is connected to a suspension ring anchoring nut arranged in the filling material 4.
Specifically, the screw rod on the lifting ring and the lifting ring anchoring nut are screwed and fixed, so that the supporting structure can be lifted and lowered by using the lifting ring.
Preferably, 2 slings 5 are installed in the present embodiment, and the 2 slings 5 are symmetrically arranged.
This embodiment provides an interim T constructs to hang and waters bearing structure for construction, through setting up rings to detachable, the hoist and mount is accomplished the back detachable, guarantees that the bridge floor levels, makes things convenient for the operation.
In another embodiment of the present invention, on the basis of the above embodiment, the end surface of the steel shell 1 is provided with a through hole 7; wherein,
the through hole 7 sequentially penetrates through the first end face of the steel shell 1, the filling material 4 and the second end face of the steel shell 1.
Wherein, the end face of the steel shell 1 is provided with a plurality of through holes 7, and the steel cable connects the beams at the two ends of the supporting structure together through the through holes 7.
In another embodiment of the present invention, on the basis of the above embodiment, the filling material is concrete, and the strength of the concrete is not lower than C30; or,
the filling material is mortar, and the strength of the mortar is not lower than M30.
Wherein, the classification of concrete strength grade: the strength grade of the concrete is determined by a standard value (MPa) of the compressive strength of a concrete cube, and the symbol is represented by 'C'. The grades are divided into: the total of 12 grades are C7.5, C10, C15, C20, C25, C30, C35, C40, C45, C50, C55 and C60.
Of course, different projects or concretes used in different parts have different requirements on the strength and the like of the concrete; wherein,
(1) C7.5-C15 are mainly used for cushions, foundations, terraces and structures with low stress.
(2) C15-C25 are used for common reinforced concrete structures such as beams, plates, columns, stairs, roof trusses and the like. (3) And C25-C30 are used for large-span structures and have high requirements on durability.
(4) And more than C30 is used for prestressed reinforced concrete members, dynamic load bearing structures, special structures and the like.
Preferably, the filling material is concrete in this embodiment.
In another embodiment of the present invention, on the basis of the above embodiment, the present invention further includes: a reinforcing screw 6; wherein,
one end of the reinforcing screw 6 is connected with the top surface of the groove, and the other end of the reinforcing screw 6 is connected with the bottom surface of the groove.
This embodiment provides a temporary T constructs to hang and waters bearing structure for construction, and the one end of strengthening the screw rod is connected with the top surface of recess, and the other end of strengthening the screw rod is connected with the bottom surface of recess, strengthens the wholeness of structure on the one hand, safety railing when being the construction on the one hand.
In another embodiment of the present invention, based on the above embodiment, the width of the steel outer shell 1 and the width of the steel inner shell 2 are 10cm to 20 cm.
Wherein, the width of the steel outer shell 1 and the width of the steel inner shell 2 are consistent with the width of the beam seam.
Preferably, the width of the steel outer shell 1 and the steel inner shell 2 is 10 cm; or the width of the steel outer shell 1 and the width of the steel inner shell 2 are 20 cm; alternatively, the width of the steel outer shell 1 and the steel inner shell 2 is 15cm.
In another embodiment of the present invention, on the basis of the above embodiment, the material of the steel outer shell 1 and the steel inner shell 2 is a steel plate, and the thickness of the steel plate is 6mm to 12 mm.
Specifically, the thickness of the steel plate was 6 mm; or the thickness of the steel plate is 12 mm; alternatively, the thickness of the steel plate is 8 mm.
The embodiment provides a temporary support structure for T-shaped suspended casting construction, wherein a steel outer shell and a steel inner shell are made of steel plates, and the thickness of each steel plate is 6-12 mm. Not only ensures that enough supporting area is left between the steel inner shell and the steel outer shell, but also can reserve enough inner construction space. Meanwhile, the whole weight of the supporting structure is reduced, and the hoisting requirement is lowered.
In another embodiment of the present invention, based on the above embodiment, the cross-sectional shape of the inner steel shell 2 is rectangular or polygonal.
Preferably, the steel inner shell 2 is rectangular in cross-section in this embodiment.
Preferably, the support structure in this embodiment contains 2 through holes with rectangular cross-sections.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (8)
1. The utility model provides a support structure for construction is watered to interim T structure suspension which characterized in that includes: the steel shell, the steel inner shell, the framework steel bars and the filling materials;
the first end face of the steel shell is opposite to the end face of the first side span cast-in-place section, and the second end face of the steel shell is opposite to the end face of the second side span cast-in-place section;
the steel inner shell is arranged inside the steel outer shell;
the steel outer shell and the steel inner shell are connected through the framework steel bars;
the filling material fills a gap between the steel outer shell and the steel inner shell;
two sides of the steel shell are provided with grooves penetrating through the sides.
2. The support structure for temporary T-frame suspended casting construction according to claim 1, further comprising: the lifting rings are arranged at the symmetrical positions on two sides of the gravity center of the steel shell; wherein,
one end of the suspension ring is connected with a suspension ring anchoring nut arranged in the filling material.
3. A temporary T-frame cantilever construction supporting structure according to claim 1, wherein the end face of the steel shell is provided with a through hole; wherein,
the through holes sequentially penetrate through the first end face of the steel shell, the filling material and the second end face of the steel shell.
4. A support structure for temporary T-frame suspended casting construction according to claim 1, wherein the filler is concrete having a strength of not less than C30; or,
the filling material is mortar, and the strength of the mortar is not lower than M30.
5. The support structure for temporary T-frame suspended casting construction according to claim 1, further comprising: a reinforcing screw; wherein,
one end of the reinforcing screw rod is connected with the top surface of the groove, and the other end of the reinforcing screw rod is connected with the bottom surface of the groove.
6. The support structure for temporary T-frame suspended casting construction according to claim 1, wherein the width of the outer and inner steel shells is 10-20 cm.
7. The temporary T-shaped suspension casting construction supporting structure as claimed in claim 1, wherein the outer and inner steel shells are made of steel plates, and the thickness of the steel plates is 6mm to 12 mm.
8. A temporary T-frame cantilever construction supporting structure according to claim 1, wherein the cross-sectional shape of the steel inner shell is rectangular or polygonal.
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| CN201721411740.XU CN207314169U (en) | 2017-10-26 | 2017-10-26 | A kind of temporary T structure cantilever casting construction supporting structure |
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| CN201721411740.XU CN207314169U (en) | 2017-10-26 | 2017-10-26 | A kind of temporary T structure cantilever casting construction supporting structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630409A (en) * | 2017-10-26 | 2018-01-26 | 中铁第四勘察设计院集团有限公司 | A kind of temporary T structure cantilever casting construction supporting construction and its manufacture method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107630409A (en) * | 2017-10-26 | 2018-01-26 | 中铁第四勘察设计院集团有限公司 | A kind of temporary T structure cantilever casting construction supporting construction and its manufacture method |
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