Cast-in-place beam temporary supporting column embedded part and supporting column

Abstract

The utility model provides a cast-in-place beam temporary supporting column embedded part and a supporting column, the cast-in-place beam temporary supporting column embedded part comprises a reinforced concrete pier, the diameter of the reinforced concrete pier is smaller than that of an embedded hole to be installed, and the height of the reinforced concrete pier is smaller than the depth of the embedded hole; during pre-burying, the reinforced concrete pier is hoisted and placed in the pre-burying hole, and sulfur mortar is poured in gaps between the bottom of the reinforced concrete pier and the pre-burying hole and gaps between the side wall of the reinforced concrete pier and the pre-burying hole. The device can be repeatedly used, the construction efficiency is improved, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and more specifically to a temporary support column embedded part of a cast-in-place beam and a support column. Background Art

[0002] Cast-in-place beams are a construction process that is usually used for large and medium-sized bridges. Because of the inconvenience of transportation, bridges are made on-site at the construction site. The method is to first tie up the steel skeleton to form a formwork, and then pour concrete. At present, the construction of cast-in-place bridge beams mostly adopts the scaffolding method. The formwork of the scaffolding method is supported by evenly arranged steel columns. The lower ends of a large number of temporary support steel columns must be installed on reinforced concrete embedded parts. A large number of embedded parts must be embedded in the long strip of concrete foundation. The construction personnel are invested a lot and the material consumption is high. After the bridge construction is completed, the temporary support steel columns are dismantled and the embedded parts are abandoned, which seriously causes material waste. The existing temporary support columns have low construction efficiency and high cost. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a cast-in-place beam temporary support column embedded parts and support columns, the embedded parts can be reused, thereby improving construction efficiency and reducing construction costs.

[0004] The utility model provides a cast-in-place beam temporary support column embedded part, comprising a reinforced concrete pier, wherein the diameter of the reinforced concrete pier is smaller than the diameter of the embedded hole to be installed, and the height of the reinforced concrete pier is smaller than the depth of the embedded hole; when embedded, the reinforced concrete pier is hoisted and placed in the embedded hole, and sulfur mortar is poured in the gap between the bottom and side wall of the reinforced concrete pier and the embedded hole.

[0005] A steel plate is fixed on the upper part of the reinforced concrete pier.

[0006] A circle of bolts is evenly arranged on the upper part of the steel plate, and the circle of bolts corresponds to the flange mounting holes of the steel columns to be installed.

[0007] A circle of bent steel bars is evenly arranged inside the reinforced concrete pier, and the bent steel bars include vertical steel bars and upper transverse steel bars and lower transverse steel bars respectively arranged at both ends of the vertical steel bars, the upper transverse steel bars are welded to the lower side of the steel plate, and the lower transverse steel bars are buried in the lower end of the reinforced concrete pier.

[0008] The steel plate is connected to the reinforced concrete pier via evenly distributed anchor bolts.

[0009] The steel plate is an annular steel plate.

[0010] The diameter of the reinforced concrete pier is 10 mm smaller than the diameter of the embedded hole.

[0011] The height of the reinforced concrete pier is 5mm-10mm less than the depth of the embedded hole.

[0012] On the other hand, the utility model provides a support column, including the above-mentioned cast-in-place beam temporary support column embedded part, and a steel column is installed on the upper part of the cast-in-place beam temporary support column embedded part.

[0013] The flange of the steel column is mounted on the one-circle bolts and fastened by nuts.

[0014] From the above description, it can be known that the temporary support column embedded parts and support columns of the cast-in-place beam provided by the utility model prefabricate reinforced concrete piers as embedded parts in advance, fix the reinforced concrete piers in the embedded holes through sulfur mortar, install steel columns on the upper part of the embedded parts, and after the construction is completed, the sulfur mortar is electrified to form a liquid, and the embedded parts are separated from the embedded holes, and the embedded parts can be taken away, which is convenient and fast for repeated use. The utility model realizes the reuse of embedded parts through assembled embedded parts, reduces material use costs and labor costs, improves construction efficiency, and ensures on-site construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other purposes and results of the present invention will become more clear and easy to understand. In the accompanying drawings:

[0016] Figure 1 It is a cross-sectional view of the embedded part of the temporary support column of the cast-in-place beam according to Example 1 of the utility model;

[0017] Figure 2 It is a top view of the embedded part of the temporary support column of the cast-in-place beam according to Example 1 of the utility model;

[0018] Figure 3 is a cross-sectional view of a support column according to Embodiment 2 of the present utility model;

[0019] Figure 4 for Figure 3 AA view;

[0020] Among them, 1-reinforced concrete pier, 2-embedded hole, 3-sulfur mortar, 4-steel plate, 5-bolt, 6-steel column, 7-flange, 8-bent steel bar, 81-vertical steel bar, 82-upper transverse steel bar, 83-lower transverse steel bar, 9-anchor.

[0021] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0022] The present invention can be subjected to various changes and can have various embodiments, and specific embodiments are illustrated and described in the accompanying drawings. However, the present invention is not limited to the specific implementation, and all changes, equivalents and substitutes falling within the concept and technical scope of the present invention are included, and should be understood to be included.

[0023] Ordinal terms such as first, second, etc. may be used to describe various components, but the components are not limited to the terms. The terms are only used to distinguish one component from another component. For example, without departing from the scope of the claims of the present invention, the second component may be named as the first component, and similarly, the first component may be named as the second component. The terms and / or include a combination of multiple items recorded in association or a certain item among multiple items recorded in association.

[0024] It should be understood that when a certain component is mentioned to be "connected" or "contacted" with other components, this includes not only the case where it is directly connected or contacted with other components, but also the case where other components exist in between. Conversely, when a certain component is mentioned to be "directly connected" or "directly contacted" with other components, it should be understood that there are no other components in between.

[0025] In the description of the embodiments, when it is described that a certain component is formed "on or under" another component, on or under includes two components directly contacting each other or at least one other component is arranged and formed between the two components. Moreover, when it is expressed as on or under, it refers to not only the upper direction but also the lower direction based on a certain component.

[0026] The terms used in this application are only used to illustrate specific embodiments and are not intended to limit the present invention. Unless the context clearly stipulates otherwise, singular expressions include plural expressions. In this application, it should be understood that terms such as "including" or "having" are used to specify the presence of features, numbers, steps, operations, constituent elements, parts or combinations thereof recorded in the specification, and do not preclude the presence or additional possibility of one or more other features, numbers, steps, operations, constituent elements, parts or combinations thereof.

[0027] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as those generally understood by those skilled in the art. Terms defined in commonly used dictionaries should be interpreted as having the same meaning as in the context of the relevant technology, and if not clearly defined in this application, they should not be interpreted as ideal or overly formal meanings.

[0028] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Figure 1 It is a cross-sectional view of the embedded part of the temporary support column of the cast-in-place beam according to Example 1 of the utility model; Figure 2 It is a top view of the embedded part of the temporary support column of the cast-in-place beam according to Example 1 of the utility model;

[0031] like Figure 1 , Figure 2 As shown, the embedded parts of the temporary support columns of the cast-in-place beams proposed in this embodiment can be used as the concrete foundation of the temporary support columns of the cast-in-place beams, installed in the holes of the strip concrete foundation on the ground, and can also be used as the lower end foundation of other support columns, installed in the holes.

[0032] The embedded parts of the temporary support column of the cast-in-place beam include a reinforced concrete pier 1, which is used to be embedded in the embedded hole 2 of the strip concrete foundation as the basis for installing the steel column 6. The reinforced concrete pier 1 and the steel column 6 constitute the temporary support column of the cast-in-place beam.

[0033] In order to facilitate the installation and removal of the reinforced concrete pier 1 and make the embedded parts of the temporary support column of the cast beam reusable, the diameter of the reinforced concrete pier 1 is smaller than the diameter of the embedded hole 2 to be installed, and the height of the reinforced concrete pier 1 is smaller than the depth of the embedded hole 2. When embedded, the reinforced concrete pier 1 is hoisted and placed in the embedded hole 2, and sulfur mortar 3 is poured in the gap between the bottom and side wall of the reinforced concrete pier 1 and the embedded hole 2.

[0034] In the prior art, the steel bars are tied in the embedded hole 2 and then the concrete is poured, which is not only time-consuming and laborious to install, but also takes a long time for the concrete to solidify, delaying the construction period, and the materials cannot be reused after the construction is completed. The reinforced concrete pier 1 can be directly hoisted into the embedded hole 2 for installation after the external processing is completed in advance. It is convenient to process and install quickly, and there is no need to wait for the concrete to solidify. The characteristics of the sulfur mortar 3 can also be used to remove the reinforced concrete pier 1 from the embedded hole 2 and reuse it, saving materials.

[0035] Sulfur mortar can quickly reach strength, and its anti-freeze performance, fatigue resistance and ability to withstand repeated loads are extremely excellent, so it is widely used in various fields of civil engineering. For example, in the field of highway engineering, sulfur mortar is used as a temporary support for beams. The sulfur mortar block is connected to a power source (220V AC) and heated to melt it.

[0036] In order to facilitate the removal of the reinforced concrete pier 1 from the embedded hole 2, the sulfur mortar 3 is used to fill the gap between the embedded hole 2 and the reinforced concrete pier 1, and the reinforced concrete pier 1 is quickly fixed in the embedded hole 2. When dismantling, the solid sulfur mortar 3 can be electrified to form a liquid, and the reinforced concrete pier 1 can be hoisted out of the embedded hole 2 and kept for next use.

[0037] The size of the reinforced concrete pier 1 can be determined according to the size of the embedded hole 2. When the reinforced concrete pier 1 is placed in the middle of the embedded hole 2, there should be a certain gap between it and the embedded hole 2. The size of the gap can be filled with a sufficient amount of sulfur mortar 3 to ensure that the reinforced concrete pier 1 is firmly connected to the embedded hole 2.

[0038] In a specific embodiment of the present invention, the diameter of the reinforced concrete pier 1 may be about 10 mm smaller than the diameter of the embedded hole 2 , and the height of the reinforced concrete pier 1 may be 5 mm-10 mm smaller than the depth of the embedded hole 2 .

[0039] In a specific embodiment of the utility model, in order to facilitate the connection with the steel column 6, a steel plate 4 is fixed on the upper part of the reinforced concrete pier 1. The flat steel plate 4 is convenient for connecting with the flange 7 of the first section of the steel column. The thickness of the steel plate 4 can be 25 mm, and the area of ​​the steel plate 4 is the same as the area of ​​the upper surface of the reinforced concrete pier 1.

[0040] In a specific embodiment of the utility model, in order to firmly connect with the flange 7 of the first section of the steel column, a circle of bolts 5 are evenly arranged on the upper part of the steel plate 4, and the circle of bolts 5 corresponds to the mounting holes of the flange 7 of the first section of the steel column to be installed. During installation, the mounting holes of the flange 7 are inserted into the bolts 5 one by one, and then tightened with nuts, so that the installation is firm and convenient.

[0041] In a specific embodiment of the present invention, there is a steel bar structure inside the reinforced concrete pier 1. In order to strengthen the reinforced concrete pier 1, the steel bar structure may include a circle of bent steel bars 8 evenly arranged inside the reinforced concrete pier 1, the bent steel bars 8 include vertical steel bars 81 and upper transverse steel bars 82 and lower transverse steel bars 83 respectively arranged at both ends of the vertical steel bars 81, the upper transverse steel bars 82 are welded to the lower side of the steel plate 4, and the lower transverse steel bars 83 are buried below the reinforced concrete pier 1.

[0042] The number of bent steel bars 8 can be determined according to the load-bearing requirements of the reinforced concrete pier 1. The lengths of the upper transverse steel bars 82 and the lower transverse steel bars 83 can be less than the radius of the reinforced concrete pier 1. The upper transverse steel bars 82 can be exposed from the reinforced concrete pier 1, and the exposed portion can be firmly welded to the steel plate 4. The bent steel bars 8 of one circle firmly support the concrete pier and are stably welded to the steel plate 4.

[0043] In a specific embodiment of the present invention, in order to further firmly connect the steel plate 4 and the reinforced concrete pier 1, the steel plate 4 and the reinforced concrete pier 1 are connected by evenly distributed anchors 9. The steel plate 4 is installed on the reinforced concrete pier 1 by a plurality of anchors 9, and when the steel column 6 is installed, the steel plate 4 is firmly and not easily separated from the reinforced concrete pier 1.

[0044] In a specific embodiment of the present invention, the steel plate 4 may be an annular steel plate 4, the middle of which has a circular hole, and the upper transverse reinforcement 82 is welded to the annular portion of the annular steel plate 4. The annular steel plate 4 saves material while meeting the load-bearing requirements.

[0045] In order to facilitate the lifting and installation of the embedded parts of the temporary support column of the cast-in-place beam, the reinforced concrete pier 1 can be connected to the first section of the steel column, and then the upper end flange of the first section of the steel column can be lifted, and the reinforced concrete pier 1 can be placed in the embedded hole 2 for embedding.

[0046] Example 2

[0047] Figure 3 is a cross-sectional view of a support column according to Embodiment 2 of the present utility model; Figure 4 for Figure 3 AA view;

[0048] like Figure 3 and Figure 4 As shown, the support column provided in this embodiment includes the embedded parts of the temporary support column of the cast-in-place beam described in Example 1, and a steel column 6 is installed on the upper part of the embedded parts of the temporary support column of the cast-in-place beam to form a support column.

[0049] After the embedded parts of the temporary support column of the cast-in-place beam are installed in the embedded hole 2, the steel plate 4 of the embedded parts of the temporary support column of the cast-in-place beam is almost flush with the embedded hole 2, the flange 7 of the first section of the steel column is installed on the bolt 5 on the steel plate 4, and fastened with nuts, and a circle of reinforcing ribs is set between the upper and lower flanges of the first section of the steel column 6. Install other sections of steel columns above the first section of the steel column until the set height is reached.

[0050] After the construction of the cast-in-place beam is completed, the support column is removed. The steel column 6 is removed first, and then the sulfur mortar 3 is energized to form a liquid, and the embedded parts of the temporary support column of the cast-in-place beam are hoisted out of the embedded hole 2.

[0051] The above describes the cast-in-place beam temporary support column embedded parts and support columns according to the utility model by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the cast-in-place beam temporary support column embedded parts and support columns proposed by the utility model without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the attached claims.

Claims

1. A cast-in-place beam temporary support column embedded part, characterized in that: It comprises a reinforced concrete pier, the diameter of which is smaller than the diameter of the embedded hole to be installed, and the height of which is smaller than the depth of the embedded hole; During pre-embedding, the reinforced concrete pier is hoisted and placed in the pre-embedded hole, and sulfur mortar is poured in the gap between the bottom and side wall of the reinforced concrete pier and the pre-embedded hole.

2. The cast-in-place beam temporary support column embedded part according to claim 1, characterized in that: A steel plate is fixed on the upper part of the reinforced concrete pier.

3. The cast-in-place beam temporary support column embedded part according to claim 2, characterized in that: A circle of bolts is evenly arranged on the upper part of the steel plate, and the circle of bolts corresponds to the flange mounting holes of the steel columns to be installed.

4. The cast-in-place beam temporary support column embedded part according to claim 2, characterized in that: A circle of bent steel bars is evenly arranged inside the reinforced concrete pier, and the bent steel bars include vertical steel bars and upper transverse steel bars and lower transverse steel bars respectively arranged at both ends of the vertical steel bars, the upper transverse steel bars are welded to the lower side of the steel plate, and the lower transverse steel bars are buried in the lower end of the reinforced concrete pier.

5. The cast-in-place beam temporary support column embedded part according to claim 2, characterized in that: The steel plate is connected to the reinforced concrete pier via evenly distributed anchor bolts.

6. The cast-in-place beam temporary support column embedded part according to claim 2, characterized in that: The steel plate is an annular steel plate.

7. The cast-in-place beam temporary support column embedded part according to claim 1, characterized in that: The diameter of the reinforced concrete pier is 10 mm smaller than the diameter of the embedded hole.

8. The cast-in-place beam temporary support column embedded part according to claim 1, characterized in that: The height of the reinforced concrete pier is 5mm-10mm less than the depth of the embedded hole.

9. A support column, characterized in that: It comprises the cast-in-place beam temporary support column embedded part according to any one of claims 1 to 8, and a steel column is installed on the upper part of the cast-in-place beam temporary support column embedded part.

10. The support column according to claim 9, characterized in that: The flange of the steel column is mounted on the one-circle bolts and fastened by nuts.

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