CN214364940U - Cast-in-place concrete arc beam - Google Patents
Cast-in-place concrete arc beam Download PDFInfo
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- CN214364940U CN214364940U CN202023246269.8U CN202023246269U CN214364940U CN 214364940 U CN214364940 U CN 214364940U CN 202023246269 U CN202023246269 U CN 202023246269U CN 214364940 U CN214364940 U CN 214364940U
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Abstract
The utility model relates to a cast-in-place concrete arc beam, which comprises a steel bottom die, a steel side die, a reinforcement cage and a counter pull rod; the steel bottom die is of a splicing structure, and the top of the steel bottom die is detachably connected with the bottoms of the two steel side dies to form a pouring area for pouring the arc-shaped beam; the reinforcement cage is arranged in the pouring area; the bottom of the steel bottom die is provided with a plurality of detachably connected supporting structures; the device also comprises an observation point, wherein the observation point is positioned at the circle center of the pouring area, the central line of each supporting structure is intersected with the observation point, and the central axis and the side line of the arc-shaped beam are determined through the observation point; each supporting structure comprises a cross beam arranged below the steel bottom membrane, a supporting frame arranged below the cross beam, and a plurality of longitudinal stiffening ribs and transverse stiffening ribs which are detachably arranged between the cross beam and the steel bottom membrane; every crossbeam center extension line intersects in the observation point, and every crossbeam central point is located arc roof beam axis, the utility model has the advantages of showing and reducing the construction degree of difficulty, improving the efficiency of construction, guarantee construction quality.
Description
Technical Field
The utility model relates to a building engineering technical field, concretely relates to cast in situ concrete arc beam.
Background
With the rapid increase of the social and economic level, the requirements of modern building design on shape and beauty are higher and higher, and the unique shape of the building can become a beautiful landscape in the city. The arc-shaped curved buildings have become indispensable active factors of the buildings due to the characteristics of soft, light, lively and good visual sense, and the like, so that the situations of using arc-shaped structures in various buildings are increasing.
However, in the prior art, the construction of the arc-shaped curved building is complex, the process from lofting, designing and manufacturing to installation of the template project is complex, the axis control difficulty is high, the precision requirement is high, and the curvature of the structure and the member is difficult to control. And the traditional wood formwork supporting mode is often adopted in construction, the bending and reinforcing difficulty of the formwork is high, the loss rate is high, the deformation is easy, and the quality is difficult to ensure.
Therefore, the existing cast-in-place concrete arc beam which is simple in template manufacturing and installation, high in construction efficiency and capable of guaranteeing construction quality is needed to be found.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem that exists among the prior art, provide a cast in situ concrete arc beam.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a cast-in-place concrete arc beam comprises a steel bottom die, a steel side die, a reinforcement cage and a counter pull rod; the steel bottom die is of a splicing structure, and the top of the steel bottom die is detachably connected with the bottoms of the two steel side dies to form a pouring area for pouring the arc-shaped beam; the reinforcement cage is arranged in the pouring area; the counter pull rod is detachably arranged between the two steel side dies; the bottom of the steel bottom die is provided with a plurality of detachably connected supporting structures; the device further comprises an observation point, wherein the observation point is positioned at the circle center of the pouring area, the central line of each supporting structure is intersected with the observation point, and the central axis and the side line of the arc-shaped beam are determined through the observation point; each supporting structure comprises a cross beam arranged below the steel bottom membrane, a supporting frame arranged below the cross beam, and a plurality of longitudinal stiffening ribs and transverse stiffening ribs which are detachably arranged between the cross beam and the steel bottom membrane; the center extension lines of the cross beams intersect at an observation point, and the center points of the cross beams are located on the central axis of the arc-shaped beam.
The working principle and the beneficial effects are as follows: 1. compared with the prior art, the steel bottom die is formed by splicing, the manufacturing and mounting difficulty of the arc bottom die is obviously reduced, the construction speed can be greatly improved, and the technical advantage is obvious;
2. the steel side die and the steel bottom die are fixedly installed to form a pouring area for pouring the arc-shaped beam, and the spliced design has higher dimensional precision compared with the traditional direct grooving mode and can obviously improve the construction quality of the arc-shaped beam;
3. many places detachable design can be transported in batches after the processing of processing factory or directly make at the scene, convenient transportation and tissue to reduce the cost of transportation, also make things convenient for the hoist and mount.
4. The central axis and the side line of the arc-shaped beam can be accurately and conveniently positioned through the observation point, so that the installation of the steel side die is facilitated, the installation precision is obviously improved, and the construction quality of the arc-shaped beam is ensured.
5. Two adjacent steel bottom templates are fixed through the crossbeam, fix the crossbeam through the support frame, increase the intensity of every steel bottom template through vertical stiffening rib and horizontal stiffening rib, and the stiffening rib passes through the detachable mode simultaneously and installs on the crossbeam, can conveniently be under construction, especially the adjusting position when the construction reduces the weight of single part.
Further, the steel die block is formed by splicing a plurality of steel die plates, and each steel die plate is in an isosceles trapezoid shape. This setting can splice through a plurality of isosceles trapezoid and form the shape of similar curve, can conveniently splice, also convenient processing.
Further, each steel bottom template is arranged between the two supporting structures. Through installing the steel bottom template between two bearing structure, through two steel bottom templates of bearing structure connection, support the steel bottom template simultaneously, can show the bulk strength who promotes the steel bottom template, also be convenient for install.
Furthermore, the center extension line of each beam intersects at an observation point, and the center point of each beam is located on the central axis of the arc beam. This setting, accessible observation point conveniently fixes a position the crossbeam, makes things convenient for the setting of crossbeam, has accomplished the location to the steel die block after having installed the crossbeam promptly, convenient operation.
Further, the pouring area is in a reverse-bending arc shape.
Furthermore, a plurality of fixing bolt holes which are uniformly arranged at intervals are formed in the isosceles side line of each steel bottom template.
Further, the opposite pull rod is fixed between the two steel side dies through opposite pull bolts.
Furthermore, each steel side die bottom is equipped with the connection otic placode, through connection otic placode and connecting bolt are connected with the steel end mould.
The construction method of the cast-in-place concrete arc beam comprises the following steps:
s100: setting an observation point and an arc beam central axis;
s200: positioning a support frame and installing a cross beam on the support frame, wherein the center extension line of the cross beam is intersected with an observation point;
s300: manufacturing a steel bottom template according to the size of a trapezoidal gap between two adjacent cross beams;
s400: installing a steel bottom template between two adjacent cross beams, installing stiffening ribs at the bottom of the steel bottom template, and splicing a plurality of steel bottom templates to form a curved steel bottom template;
s500: according to the observation points, paying off the position of the arc-shaped beam on the steel bottom die, and determining the central axis and the side line of the arc-shaped beam;
s600: installing a steel side die on a steel bottom die according to the side line of the arc-shaped beam to form a pouring area;
s700: placing a reinforcement cage in the pouring area;
s800: and pouring concrete in the pouring area.
Through above-mentioned step, compare prior art through the mode of wooden mould, the template preparation installation degree of difficulty is lower, and the quality can obtain guaranteeing, can show and promote the efficiency of construction.
And further, a check pull rod is arranged between two adjacent steel side dies to check the two adjacent steel side dies for reinforcement. This setting can further improve the verticality of every steel side mould, prevents that every steel side mould slope from leading to pouring regional change and leading to the arc roof beam to warp.
Further, each steel side die is of an integrated structure. This setting, the steel side mould accessible is fixed with the steel end mould of bottom and is adjusted the curvature to make even the steel side mould processing camber precision is not high, also can adjust to exact position when the on-the-spot installation, this sets up and can show the reduction processing degree of difficulty, reduces the processing cost.
Further, before an observation point and the central axis of the arc-shaped beam are set, fine stone concrete is used for plastering and press polishing after the ground is rolled and leveled on a construction site. This setting can guarantee that construction ground is enough level and smooth, lays the basis for the construction, guarantees construction quality.
Drawings
FIG. 1 is a schematic illustration of the construction of a cast-in-place concrete arc beam;
FIG. 2 is a plan view of the central axis and observation points of the arched beam;
FIG. 3 is a layout view of a cross member;
FIG. 4 is a schematic structural view of a steel bottom die;
FIG. 5 is a schematic view of the installation of the steel bottom die and the cross beam;
FIG. 6 is a layout diagram of the central axis and the side line of an arc-shaped beam on a steel bottom die;
FIG. 7 is a layout of the steel bottom die openings;
fig. 8 is a schematic view of the installation of the steel sideform.
In the figure, 1, a steel bottom die; 2. fixing the bolt; 3. a steel side die; 4. connecting the ear plates; 5. a connecting bolt; 6. a cross beam; 7. a support frame; 8. an observation point; 9. a reinforcement cage; 10. a pull rod is arranged; 11. oppositely pulling the bolts; 12. opening a hole; 13. the central axis of the arc-shaped beam; 14. an arc-shaped beam side line; 15. fixing bolt holes; 16. a longitudinal stiffener; 17. a transverse stiffener.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting.
Referring to fig. 1, the cast-in-place concrete arc beam comprises a steel bottom die 1, fixing bolts 2, steel side dies 3, connecting lug plates 4, connecting bolts 5, cross beams 6, a support frame 7, an observation point 8, a reinforcement cage 9, a tie rod 10, a tie bolt 11, an opening 12, an arc beam central axis 13 and an arc beam side line 14; observation point 8 sets up the arc center point at the arc roof beam, arc roof beam axis 13 and arc roof beam sideline 14 are confirmed according to observation point 8 location, and the unwrapping wire sets up on steel die block 1, crossbeam 6 sets up in arc roof beam steel die block 1 below, support frame 7 sets up in crossbeam 6 below, 1 back of steel die block is equipped with vertical stiffening rib 16 and horizontal stiffening rib 17, fixes through fixing bolt 2 with crossbeam 6, trompil 12 sets up in arc roof beam sideline 14 outside, 3 bottoms of steel side form are equipped with the connection otic placode 4 that has the keyhole, link to each other with steel die block 1 through connecting bolt 5, and 3 upper portions of steel side form are equipped with the counter-pull hole, and connect fixedly through counter-pull rod 10 and counter-pull bolt 11 with both sides steel side form 3, steel reinforcement cage 9 sets up in 1 top of steel die.
Preferably, the structural line of the arc-shaped beam is in a shape of a reverse bend arc.
Preferably, the steel bottom die 1 is in an isosceles trapezoid shape, and a row of fixing bolt holes 15 are respectively arranged at the isosceles line.
Preferably, the extension line of the center of the cross beam 6 intersects with the arc center point, and the center line point of the cross beam 6 is just located on the central axis 13 of the arc beam.
The construction method of the cast-in-place concrete arc beam comprises the following steps:
the method comprises the following steps: as shown in fig. 2, the central axis 13 and the observation point 8 of the arc-shaped beam are well positioned: setting a special site on a construction site, after rolling and leveling, plastering and press polishing with fine stone concrete for on-site line snapping and lofting, determining arc center point marks of two reverse bending arcs of the arc beam as an observation point 8, and positioning a central axis 13 of the laid arc beam through the observation point 8;
step two: as shown in fig. 3, the position of the cross beam 6 is well positioned according to a certain radian, steel pipe materials are selected for bolting and welding, a support frame 7 at the lower part of the cross beam 6 is manufactured and installed, and then the cross beam 6 is installed at the upper part of the support frame 7;
step three: as shown in fig. 3 and 5, a trapezoidal interval is formed between adjacent cross beams 6, the edge of each trapezoidal interval exceeds the edge of each arc beam by a certain distance, a corresponding arc beam steel bottom die 1 is manufactured according to the size of the trapezoidal interval, the steel bottom die 1 adopts a whole steel template, stiffening ribs are arranged at the bottom of the steel template 1, and the steel bottom die and the cross beams 6 are bolted and fixed by using fixing bolts 2;
step four: as shown in fig. 6, after the arc-shaped beam steel bottom die 1 is assembled, the arc-shaped beam is laid on the steel bottom die 1 according to the observation point 8 to form an arc-shaped beam central axis 13 and an arc-shaped beam side line 14, and then the installation positions of the reinforcement cage 9 and the steel side die 3 are determined;
step five: as shown in fig. 7, holes 12 are uniformly drilled on the side edges of the side lines 14 of the arc-shaped beam, meanwhile, an integral steel side die 3 of the arc-shaped beam is manufactured by adopting a steel template, the steel side die 3 is higher than the arc-shaped beam by a certain height, a counter-pull hole is arranged at the upper part of the steel side die, and in addition, a corresponding steel reinforcement cage 9 of the arc-shaped beam is manufactured by binding according to the design in a steel reinforcement processing factory;
step six: as shown in fig. 1 and 8, hoisting the manufactured steel side die 3, fixedly connecting the steel side die with the steel bottom die 1 by using connecting bolts 5, making a leakage-proof measure between the templates, hoisting a reinforcement cage 9 of the arc beam, finally calibrating the upper size of the steel side die 3 on two sides of the arc beam, installing a counter pull rod 10 and a counter pull bolt 11, and carrying out counter pull reinforcement on the steel side die 3 on two sides;
step seven: and pouring concrete and curing the concrete into a beam to complete the construction of the cast-in-place concrete arc beam.
The part of the utility model which is not described in detail is the prior art, so the utility model does not detail the part.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Although the terms steel bottom die, fixing bolt, steel side die, connecting lug plate, connecting bolt, cross beam, support frame, observation point, reinforcement cage, tie rod, tie bolt, opening, central axis of arc beam, side line of arc beam, fixing bolt hole, longitudinal stiffening rib, transverse stiffening rib, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (7)
1. The cast-in-place concrete arc beam is characterized by comprising a steel bottom die, a steel side die, a reinforcement cage and a counter pull rod; the steel bottom die is of a splicing structure, and the top of the steel bottom die is detachably connected with the bottoms of the two steel side dies to form a pouring area for pouring the arc-shaped beam; the reinforcement cage is arranged in the pouring area; the counter pull rod is detachably arranged between the two steel side dies; the bottom of the steel bottom die is provided with a plurality of detachably connected supporting structures; the device further comprises an observation point, wherein the observation point is positioned at the circle center of the pouring area, the central line of each supporting structure is intersected with the observation point, and the central axis and the side line of the arc-shaped beam are determined through the observation point; each supporting structure comprises a cross beam arranged below the steel bottom membrane, a supporting frame arranged below the cross beam, and a plurality of longitudinal stiffening ribs and transverse stiffening ribs which are detachably arranged between the cross beam and the steel bottom membrane; the center extension lines of the cross beams intersect at an observation point, and the center points of the cross beams are located on the central axis of the arc-shaped beam.
2. The cast-in-place concrete arc beam according to claim 1, wherein the steel bottom formwork is formed by splicing a plurality of steel bottom formworks, and each steel bottom formwork is arranged in an isosceles trapezoid shape.
3. A cast in situ concrete arc beam according to claim 2, wherein each said steel bottom form is disposed between two support structures.
4. A cast in situ concrete arcuate beam according to claim 1, wherein said casting area is a reverse curved arc.
5. The cast-in-place concrete arched beam according to claim 2, wherein a plurality of fixing bolt holes are formed at the isosceles side line of each steel bottom formwork at regular intervals.
6. A cast in situ concrete arc beam according to claim 1, wherein said tie rods are secured between two steel side forms by tie bolts.
7. A cast-in-place concrete arc beam according to claim 1, wherein each steel side form bottom is provided with a connecting lug plate, and the connecting lug plate and the connecting bolt are connected with the steel bottom form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023246269.8U CN214364940U (en) | 2020-12-29 | 2020-12-29 | Cast-in-place concrete arc beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023246269.8U CN214364940U (en) | 2020-12-29 | 2020-12-29 | Cast-in-place concrete arc beam |
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| Publication Number | Publication Date |
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| CN214364940U true CN214364940U (en) | 2021-10-08 |
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| CN202023246269.8U Active CN214364940U (en) | 2020-12-29 | 2020-12-29 | Cast-in-place concrete arc beam |
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| CN (1) | CN214364940U (en) |
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