CN215289742U - Side wall unilateral formwork support - Google Patents
Side wall unilateral formwork support Download PDFInfo
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- CN215289742U CN215289742U CN202121579622.6U CN202121579622U CN215289742U CN 215289742 U CN215289742 U CN 215289742U CN 202121579622 U CN202121579622 U CN 202121579622U CN 215289742 U CN215289742 U CN 215289742U
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Abstract
The utility model provides a side wall unilateral formwork support, including fender pile and bailey support, bailey support is assembled by a plurality of bailey piece and is formed, the top of fender pile is equipped with the concrete crown beam, pre-buried a montant in the concrete crown beam, one side that bailey support and montant kept away from each other all is equipped with first double H-shaped steel of piecing together, the both ends of head rod are passed between the first double H-shaped steel of piecing together, pre-buried a horizontal pole in the side wall between fender pile and the bailey support, be equipped with the connector on this horizontal pole, the lower part of bailey support is equipped with the second double H-shaped steel in the side of keeping away from the connector, the one end and the connector of second connecting rod are connected, the other end of second connecting rod passes between the second double H-shaped steel of piecing together. The utility model discloses to the not enough of conventional triangle shaped steel support method construction, provide a simple structure, the atress is clear and definite, the installation is convenient, safe economic construction method, effectual solution support set up in-process shaped steel is in large quantity, welding load is big, ann tears the problem that time length, template warp big.
Description
Technical Field
The utility model relates to a support is used in the construction, especially relates to a side wall unilateral formwork support.
Background
During the construction of the side wall of the tunnel bridge, the opposite pull rods are inconvenient to adopt due to the waterproof requirement of the main structure, the mode of one-side formwork support is usually adopted, the mode of construction by a triangular steel support method is mostly adopted in the industry field, and the construction by the triangular steel frame formwork support is adopted, so that the required section steel is large in quantity, the support welding workload is large, the required time for installation and disassembly is long, and the formwork deformation is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, overcome the above-mentioned defect that prior art exists, provide a simple structure, atress are clear and definite, install convenient side wall unilateral formwork support.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a side wall unilateral formwork support, includes fender pile and bailey support, the bailey support is assembled by a plurality of bailey piece and is formed, and the top of fender pile is equipped with the concrete crown beam, a pre-buried montant in the concrete crown beam, one side that bailey support and montant kept away from each other all is equipped with first pair and pieces together the I-steel, first pair is pieced together between the I-steel to the both ends of head rod, a pre-buried horizontal pole in the side wall between fender pile and the bailey support is equipped with the connector on this horizontal pole, and the lower part of bailey support is equipped with the second pair and pieces together the I-steel in the side of keeping away from the connector, and the one end and the connector of second connecting rod are connected, and the other end of second connecting rod passes between the second pair pieces together the I-steel.
Furthermore, the first connecting rod and the second connecting rod are both twisted steel, two ends of the first connecting rod and the second connecting rod are fixed through fixing nuts, and steel backing plates are arranged between the fixing nuts and the I-shaped steel.
Furthermore, a triangular support is arranged at the bottom of the bailey support, one side of the bottom of the bailey support is supported on the top surface of the access road, the other side of the bottom of the bailey support is supported on the triangular support, and the access road is located between the side wall and the triangular support.
Further, one end of the Bailey sheet is a male end, the other end of the Bailey sheet is a female end, the Bailey sheets are assembled through the male end and the female end to form a vertical Bailey support, pin holes are formed in the male end and the female end, and the male end and the female end are positioned through the pin shafts and the pin holes.
Further, the vertical rods are steel rods, and the transverse rods are oppositely-pulled screw rods.
Further, the connector is a steel bar connecting sleeve.
Further, the bailey bracket is equipped with the steel form on the side that is close to the fender pile, and the steel form all adopts a finish rolling steel to draw tightly to fix with each nodical of bailey truss chord member, ensures that steel form and bailey truss chord member directly laminate, improves the bulk rigidity of steel form.
The utility model discloses to the not enough of conventional triangle shaped steel support method construction, provide a simple structure, the atress is clear and definite, the installation is convenient, safe economic construction method, effectual solution support set up in-process shaped steel is in large quantity, welding load is big, ann tears the problem that time length, template warp big.
The utility model is suitable for a side wall construction of formula tunnel bridge wears down, especially in the tunnel bridge major structure construction that has the deep basal pit, utilize the bailey support of vertical type and steel form to combine together and carry out unilateral formwork, its dominant effect of performance that can be better.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the upper portion of the Bailey bracket of the embodiment of FIG. 1;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is an enlarged view of the structure at B in FIG. 2;
FIG. 5 is a schematic view of the installation of the lower portion of the Bailey bracket in the embodiment of FIG. 1;
FIG. 6 is an enlarged view of the structure at C in FIG. 5;
fig. 7 is an enlarged view of the structure at D in fig. 5.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the present embodiment includes a beret support 2 formed by splicing a plurality of 321-type beret pieces 1, one end of the upper and lower chords of the beret pieces 1 is a female end, the other end is a male end, which are collectively referred to as a joint, the female and male ends are provided with pin bolt holes, when two beret pieces are connected, the male end of one segment is inserted into the female end of the other segment, the pin bolt holes are aligned, and a pin is inserted.
As shown in fig. 2-4, a concrete crown beam 4 is arranged at the top end of the support pile 3, and the cross-sectional dimension of the concrete crown beam 4 is 100cm wide × 80cm high. Before the Bailey bracket 2 is installed, a row of holes with the diameter of 40mm is drilled in the middle of the top of the concrete crown beam 4 by a drilling machine, the hole depth is 20-30 cm, and the hole distance is 90 cm. Before drilling, the hole site is lofted, the cross line is drawn, and then the control line is popped up by pulling the line, so that all the drilled holes are ensured to be on the same straight line. And during drilling, the position of the upper row of holes corresponds to the position of the lower row of pre-buried finish rolled steel. After drilling is finished, the pore channels are cleaned, a steel bar 5 with the diameter of 40mm and the length of 70cm is inserted into each pore, a double-spliced I18I-steel 6 (two oppositely arranged I-steels) is arranged next to the steel bar 5, the steel bar 5 is used for clamping the double-spliced I18I-steel 6, the distance between the two I-steels is 5cm, and a connecting steel plate 7 with the thickness of 1cm is adopted for welding firmly.
And a double-spliced I20B I-shaped steel 8 is respectively arranged at the upper and lower opposite pull rods on the outer side of the Bailey bracket 2.
After the double I20B I-steel 8 on the outer side of the upper part of the Bailey bracket 2 is installed, a 120X 20mm steel backing plate is respectively installed on the outer side of the I-steel close to the hole position and penetrates through a first connecting rod 9, one end of the first connecting rod 9 is pulled on the double I18I-steel 6 of the concrete crown beam 4, the other end of the first connecting rod 9 is pulled on the double I20B I-steel 8 on the outer side of the upper part of the Bailey bracket 2, the first connecting rod 9 is JL-32 finish rolled steel, and finally, finish rolled steel nuts are installed for fixing.
As shown in fig. 5 to 7, a cross bar (the cross bar is a split screw) is embedded in the side wall between the support pile 3 and the bailey bracket 2, a steel bar connecting sleeve 11 is arranged on the cross bar, the lower row of the bailey bracket 2 is connected with the steel bar connecting sleeve 11 by a second connecting bar 10, the other end of the second connecting bar 10 is pulled on a double-spliced I20B I-steel 8 on the outer side of the lower part of the bailey bracket 2, and the second connecting bar 10 is JL-32 fine rolled steel. Before connection, 1/2 lengths of the steel bar connecting sleeve 11 are drawn at the lengthening end of the cross bar, and marks are made by red paint, so that the connection lengths of the two ends are the same, and the relative positions of the connected steel bars and the steel bar connecting sleeve 11 are accurate. The finish rolled steel should be installed horizontally so that it can bear tension in the axial direction, and the finish rolled steel connection must be fastened.
After all the Bailey brackets are vertically installed, a phi 32mm threaded steel bar is inserted into the chord member 2 of the Bailey bracket, and the double-spliced I-shaped steel is supported on the threaded steel in a penetrating manner from the middle.
When the bottom plate is constructed, a row of horizontal finish rolling steel is pre-buried at a position 20cm away from the top surface of the access road 12, the distance is 90cm, and when the finish rolling steel is pre-buried, the wire pulling control is carried out, so that the finish rolling steel is ensured to be on the same horizontal straight line.
And (3) reinforcing the template after finishing the installation of the upper row and the lower row of finish rolled steels of the Bailey bracket 2. During the reinforcement, the chord member of bailey bracket 2 is close to steel form 13, and the horizontal back arris of steel form 13 adopts the double pin channel-section steel, and the back arris on the steel form 13 all adopts a phi 20mm finish rolling steel to draw tightly with each nodical fixed of 2 chord members of bailey bracket, ensures that steel form 13 and bailey bracket chord member directly laminate, improves steel form 13's bulk rigidity.
The bottom of bailey bracket 2 is equipped with tripod 14 for support bailey bracket 12, and the tripod 14 height is filled up or is adjusted according to the bottom plate cross slope, guarantees that every bailey bracket of a set is vertical.
The construction of the side wall of the tunnel bridge by adopting the vertical Bailey bracket unilateral formwork is mainly characterized in that upper and lower rows of finish rolling steel of the Bailey bracket are pulled, the Bailey bracket is used as a main stress member for supporting the formwork by utilizing the characteristics of simple structure, convenient assembly and disassembly and large bending resistance bearing capacity of the Bailey bracket, horizontal load generated by concrete pouring is firstly acted on a panel and a back rib, then is transmitted to the Bailey bracket by the panel back rib, and finally is transmitted to the finish rolling steel by the Bailey bracket, and the aim of reinforcing the steel formwork is achieved by pulling the finish rolling steel.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are within the scope of the present invention provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (7)
1. The utility model provides a side wall unilateral formwork support, includes fender pile and bailey support, its characterized in that: the bailey support is assembled by a plurality of bailey pieces to form, and the top of a fender pile is equipped with concrete crown beam, a pre-buried montant in concrete crown beam, one side that bailey support and montant kept away from each other all is equipped with first double-spliced I-steel, the both ends of head rod pass between the first double-spliced I-steel, a pre-buried horizontal pole in the side wall between fender pile and the bailey support is equipped with the connector on this horizontal pole, and the lower part of bailey support is equipped with the second double-spliced I-steel on the side of keeping away from the connector, and the one end and the connector of second connecting rod are connected, and the other end of second connecting rod passes between the second double-spliced I-steel.
2. The side wall unilateral formwork support of claim 1, wherein: the first connecting rod and the second connecting rod are both twisted steel, the two ends of the first connecting rod and the second connecting rod are fixed through fixing nuts, and steel backing plates are arranged between the fixing nuts and the I-shaped steel.
3. The side wall unilateral formwork support of claim 1 or 2, wherein: a triangular support is arranged at the bottom of the Bailey support, one side of the bottom of the Bailey support is supported on the top surface of the access road, and the other side of the bottom of the Bailey support is supported on the triangular support.
4. The side wall unilateral formwork support of claim 1, wherein: one end of each Bailey piece is a male end, the other end of each Bailey piece is a female end, the Bailey pieces are assembled through the male ends and the female ends to form a vertical Bailey support, pin holes are formed in the male ends and the female ends, and the male ends and the female ends are positioned through pin shafts and the pin holes.
5. The side wall unilateral formwork support of claim 1, wherein: the vertical rods are steel rods, and the transverse rods are oppositely-pulled screw rods.
6. The side wall unilateral formwork support of claim 1, wherein: the connector is a steel bar connecting sleeve.
7. The side wall unilateral formwork support of claim 1 or 2, wherein: the steel form is arranged on the side, close to the support pile, of the Bailey support, the steel form is connected with the Bailey support through finish rolled steel, and the finish rolled steel is arranged at the intersection of each chord of the Bailey support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121579622.6U CN215289742U (en) | 2021-07-13 | 2021-07-13 | Side wall unilateral formwork support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121579622.6U CN215289742U (en) | 2021-07-13 | 2021-07-13 | Side wall unilateral formwork support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215289742U true CN215289742U (en) | 2021-12-24 |
Family
ID=79521943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121579622.6U Active CN215289742U (en) | 2021-07-13 | 2021-07-13 | Side wall unilateral formwork support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215289742U (en) |
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2021
- 2021-07-13 CN CN202121579622.6U patent/CN215289742U/en active Active
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