Supporting structure for large-inclination lower tower column construction and construction method thereof

Abstract

The application discloses a supporting structure for large-inclination lower tower column construction and a construction method thereof, and relates to the technical field of building engineering.The supporting structure comprises a pier seat, first supports and second supports connected to the two sides of the top of the pier seat, a grommet fixed in the first support and a horizontal-pulling steel cable connected to one side of the grommet, and a steel frame beam connected to the top of the pier seat through a steel frame column.The first supports and the second supports are placed on the pier seat through a tower crane and fastened through bolts, other first supports and second supports are built on the top of the first supports and the second supports, and the lower tower column mold is divided into multiple parts and fixed with the multiple first supports and the multiple second supports, so that the lower tower column mold can be built at the same time when the first supports and the second supports are built by workers through the tower crane, the structural strength is high, the outward-inclined lower tower column mold is effectively prevented from falling, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, in particular to a support structure for large-inclination lower tower column construction and a construction method thereof. BACKGROUND

[0002] The tower column is a high-rise structure for supporting stay cables or cables in cable-stayed bridges and suspension bridges, and the tower column is usually divided into upper and lower parts. The upper tower column is mainly used for installing steel cables to pull the bridge deck, and the lower tower column is mainly used for supporting the bridge deck. The thunder is dead in the pier.

[0003] The existing large-inclination lower tower column mainly has two types of outward inclination and inward inclination, and the existing support structure for large-inclination lower tower column construction is mainly composed of steel columns, steel beams, and steel structures such as Bailey frames. The tower column is outwardly inclined, and the support structure is usually located on the inner side of the tower column, the connection point is small, and the force applied to the outer side of the tower column is small. The force of the tower column outwardly is entirely supported by the steel structure, and the strength requirement of the steel structure is high, thereby resulting in the need for high-strength steel to manufacture the steel structure and a large number of steel structures. However, the shape of each bridge is different, resulting in different shapes of the lower tower column, and thus the shape of the support structure is also different. The subsequent support structure needs to be recycled and reprocessed, which is difficult to be reused, resulting in very high cost. SUMMARY

[0004] Therefore, the present application aims to provide a support structure for large-inclination lower tower column construction and a construction method thereof to solve the technical problems mentioned in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a support structure for large-inclination lower tower column construction, comprising a pier seat, the top of the pier seat is connected with a first support and a second support on both sides, a grommet is fixed inside the first support, and a horizontal tension steel cable is connected to one side of the grommet; a steel frame beam is connected to the top of the pier seat through a steel frame column in the middle, and a first cable frame and a second cable frame are connected to the outer surface of the steel frame column, respectively.

[0006] Through the above technical scheme, the worker first builds the steel frame column on the top of the pier seat through the tower crane, and first builds a layer of steel frame beam, the building method is to fasten the steel frame column and the steel frame beam through the traditional fastening structure for limiting the steel structure such as bolts and angle steels, so as to facilitate the subsequent worker to walk and install the first support, the second support and the lower tower column mold on the steel frame beam through the tower crane; the worker places the first support and the second support on the pier seat through the tower crane and fastens them through bolts, and builds other first supports and second supports on the top of the first support and the second support, and the lower tower column mold is divided into multiple parts and fixed with multiple first supports and second supports, so that the worker can build the lower tower column mold while building the first support and the second support through the tower crane; with the building of the first support and the second support, the worker also builds the steel frame beam through the tower crane, so as to facilitate the subsequent worker to walk and install the first support, the second support and the lower tower column mold on the steel frame beam, and at the same time, the worker connects the steel frame beam and the ground through the cable-stayed steel cable; the worker passes the horizontal pulling steel cable through the grommet, and enables the first supports on both sides of the steel frame column and the steel frame beam to be pulled together through the horizontal pulling steel cable, so as to avoid the inclination being too large to cause the first support, the second support and the lower tower column mold to fall, then the first cable frame and the second cable frame are combined and sleeved outside the steel frame column and the horizontal pulling steel cable, and the bolts are tightened to limit the first cable frame and the second cable frame together, so as to enable the first support, the second support and the steel frame column to share the force in the front and back directions, reduce the possibility of the first support and the second support falling forward and backward, and cooperate with the cable-stayed steel cable to pull the steel frame column and the steel frame beam, so as to avoid the steel frame column and the steel frame beam from falling backward subsequently due to the influence of the horizontal pulling steel cable.

[0007] Further, the first support and the second support are connected through bolts.

[0008] Through the above technical scheme, the worker places the first support and the second support on the pier seat through the tower crane and fastens them through bolts, and builds other first supports and second supports on the top of the first support and the second support.

[0009] Further, the first support and the second support are connected through bolts.

[0010] Through the above technical scheme, the worker places the first support and the second support on the pier seat through the tower crane and fastens them through bolts, and builds other first supports and second supports on the top of the first support and the second support, and the lower tower column mold is divided into multiple parts and fixed with multiple first supports and second supports, so that the worker can build the lower tower column mold while building the first support and the second support through the tower crane.

[0011] Further, the grommet and the horizontal pulling steel cable are provided in multiple numbers, and the multiple horizontal pulling steel cables are distributed in parallel.

[0012] Through the above technical scheme, the worker passes the horizontal pulling steel cable through the grommet, and the horizontal pulling steel cable can pull the first supports on both sides of the steel frame column and the steel frame beam to each other, so as to avoid the first support, the second support and the lower tower column mold from falling due to the too large inclination angle.

[0013] Further, the first cable frame and the second cable frame are provided with a plurality of, and a plurality of horizontal pulling steel cables pass through the two sides of the plurality of first cable frames and the second cable frames.

[0014] Through the above technical scheme, the first support, the second support and the steel frame column can share the force in the front and rear directions, and the possibility of the first support and the second support falling forward and backward is reduced.

[0015] Further, the first cable frame and the second cable frame are connected by bolts, and the first cable frame and the second cable frame are connected with the steel frame column.

[0016] Through the above technical scheme, the first cable frame and the second cable frame are combined and sleeved outside the steel frame column and the horizontal pulling steel cable, and the bolts are tightened to limit the first cable frame and the second cable frame together.

[0017] Further, the first support and the second support are provided with a lower tower column mold.

[0018] Through the above technical scheme, the lower tower column mold is divided into a plurality of parts and fixed with a plurality of first supports and second supports, so that the worker can build the lower tower column mold while building the first support and the second support by the tower crane, to facilitate subsequent pouring of concrete.

[0019] Further, the steel frame column and the steel frame beam are provided with a plurality of, and the plurality of steel frame columns are distributed in a rectangular array, and the plurality of steel frame beams are distributed at equal intervals.

[0020] Through the above technical scheme, the worker first builds the steel frame column on the top of the pier seat by the tower crane, and first builds a layer of steel frame beam. The method for building is to fasten the steel frame column and the steel frame beam by bolts, angle steels and other traditional fastening structures for limiting steel structures, so that the worker can walk and install the first support, the second support and the lower tower column mold on the steel frame beam by the tower crane in subsequent work.

[0021] Further, the outer surface and the back of the steel frame beam are provided with a plurality of inclined steel cables, and the plurality of inclined steel cables are mirror image distributed.

[0022] Through the above technical scheme, the inclined steel cable pulls the steel frame column and the steel frame beam, so as to avoid the steel frame column and the steel frame beam from falling backward after being affected by the horizontal pulling steel cable.

[0023] A supporting construction method for large-inclination-angle lower tower column construction has the following specific steps:

[0024] Step one, the workers first through the tower crane on the top of the pier seat steel column erection, and first build a layer of steel frame beam, build method is through the bolt, angle steel and other traditional for limiting steel structure fastening structure fastening steel frame column and steel frame beam, in order to facilitate subsequent workers through the tower crane on the steel frame beam laying path walking installation first support, second support and lower tower column mold;

[0025] Step two, workers through the tower crane first support and second support placed on the pier seat through the bolt fastening, and build other first support and second support on the top of the first support and second support, and the lower tower column mold is divided into multiple parts and fixed with multiple first support and second support, so that workers through the tower crane build first support and second support at the same time can build lower tower column mold;

[0026] Step three, with the first support and second support, workers through the tower crane also build steel frame beam, in order to facilitate subsequent workers on the steel frame beam laying path walking installation first support, second support and lower tower column mold, at the same time workers will cable-stayed steel cable connected steel frame beam and ground;

[0027] Step four, workers will cross the cable through the grommet, through the cross cable to make the first support on both sides of the steel frame column and steel frame beam can pull each other, to avoid the inclination of the first support, second support and lower tower column mold dumping, after the first cable frame and the second cable frame combined in steel frame column and cross cable outside, and the bolt is tightened to make the first cable frame and the second cable frame limit together, can make the first support, second support and steel frame column between the front and back direction of force, reduce the possibility of first support and second support dumping front and back, with cable-stayed steel cable to pull the steel frame column and steel frame beam, to avoid the steel frame column and steel frame beam subsequent by cross cable influence to the front and back dumping.

[0028] In summary, the present application mainly has the following beneficial effects:

[0029] 1. The first support, the second support, the grommet and the horizontal cable are arranged, the workers place the first support and the second support on the pier seat through the tower crane, fasten through the bolts, build other first supports and second supports on the top of the first support and the second support, and the lower tower column mold is divided into multiple parts and is fixed with multiple first supports and second supports, so that the workers can build the lower tower column mold while building the first support and the second support through the tower crane, and the subsequent support of the lower tower column mold is facilitated; the workers pass the horizontal cable through the grommet, the first supports on both sides of the steel frame column and the steel frame beam can be pulled by each other through the horizontal cable, the gravity between the two inclined lower tower column molds is offset, the inclination angle is too large, the first support, the second support and the lower tower column mold are prevented from falling, and the demand for the strength and the quantity of the steel frame column and the steel frame beam is reduced, so that the cost is reduced, the horizontal cable can adapt to lower tower column molds, first supports and second supports of different shapes, can be reused, and the cost required for recycling and recasting is reduced; the structure has high strength, can effectively prevent the inclined lower tower column mold from falling, and reduces the cost;

[0030] 2. The first cable frame and the second cable frame are combined and sleeved outside the steel frame column and the horizontal cable, and the bolts are tightened to limit the first cable frame and the second cable frame together, so that the first support, the second support and the steel frame column can share the force in the front-rear direction; the possibility of front-rear falling of the first support and the second support can be effectively reduced;

[0031] 3. The inclined cable is arranged, the inclined cable pulls the steel frame column and the steel frame beam, avoids the steel frame column and the steel frame beam from being affected by the horizontal cable and falling backward, and further improves the stability. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the application;

[0033] Figure 2 It is a side structural schematic diagram of the application;

[0034] Figure 3 It is a first support structural schematic diagram of the application;

[0035] Figure 4 It is a second support structural schematic diagram of the application;

[0036] Figure 5 It is a first cable frame structural schematic diagram of the application;

[0037] Figure 6 It is a second cable frame structural schematic diagram of the application.

[0038] In the figure: 1, pier base; 2, lower tower column mold; 3, steel frame column; 4, steel frame beam; 5, cable-stayed steel cable; 6, first cable frame; 7, second cable frame; 8, first support; 9, second support; 10, grommet; 11, transverse cable. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0040] The embodiments of the present application will be described below according to the overall structure of the present application.

[0041] Embodiment one:

[0042] A support structure for large-inclination lower tower column construction, as shown in Figures 1-5 , including a pier base 1, the top of the pier base 1 is connected with a first support 8 and a second support 9 on both sides, the first support 8 and the second support 9 are connected by bolt disassembly between them, the first support 8 and the second support 9 are both provided with a plurality of, the plurality of first supports 8 and the plurality of second supports 9 are connected by bolt disassembly between them, which can support the lower tower column mold 2; the first support 8 is fixed with a grommet 10 inside, the grommet 10 is connected with a transverse cable 11 on one side, the grommet 10 and the transverse cable 11 are both provided with a plurality of, the plurality of transverse cables 11 are distributed in parallel, the first support 8 on both sides of the steel frame column 3 and the steel frame beam 4 can be pulled by the transverse cable 11, so as to avoid the first support 8, the second support 9 and the lower tower column mold 2 from falling due to too large inclination; the top of the pier base 1 is connected with a steel frame beam 4 through a steel frame column 3 in the middle, the steel frame column 3 and the steel frame beam 4 are both provided with a plurality of, the plurality of steel frame columns 3 are distributed in a rectangular array, the plurality of steel frame beams 4 are distributed at equal intervals, the outer surface of the steel frame column 3 is respectively connected with a first cable frame 6 and a second cable frame 7, the first cable frame 6 and the second cable frame 7 are both provided with a plurality of, the plurality of transverse cables 11 pass through both sides of the plurality of first cable frames 6 and the plurality of second cable frames 7, the first cable frame 6 and the second cable frame 7 are connected by bolt disassembly, the first cable frame 6 and the second cable frame 7 are disassembled with the steel frame column 3, the first cable frame 6 and the second cable frame 7 are combined and sleeved outside the steel frame column 3 and the transverse cable 11, and the bolt is tightened to limit the first cable frame 6 and the second cable frame 7 together, which can share the force in the front and back directions between the first support 8, the second support 9 and the steel frame column 3, and reduce the possibility of the first support 8 and the second support 9 falling forward and backward.

[0043] Referring to Figure 1 and Figure 2 , in the above embodiment, the lower tower column mold 2 is arranged between the first support 8 and the second support 9, which facilitates subsequent binding of steel bars and pouring of concrete inside, so as to construct the lower tower column.

[0044] A support construction method for large inclination lower tower column construction, the specific steps are as follows:

[0045] Step one, the staff first builds the steel frame column 3 on the top of the pier seat 1 through the tower crane, and first builds a layer of steel frame beam 4, the building method is to fasten the steel frame column 3 and the steel frame beam 4 through bolts, angle steels and other traditional fastening structures used for limiting steel structures, so that subsequent workers can walk on the steel frame beam 4 through the tower crane to install the first support 8, the second support 9 and the lower tower column mold 2;

[0046] Step two, the staff places the first support 8 and the second support 9 on the pier seat 1 through the tower crane and fastens them through bolts, and builds other first supports 8 and second supports 9 on the top of the first support 8 and the second support 9, the lower tower column mold 2 is divided into multiple parts and fixed with multiple first supports 8 and second supports 9, so that the staff can build the lower tower column mold 2 while building the first support 8 and the second support 9 through the tower crane;

[0047] Step three, as the first support 8 and the second support 9 are built, the staff also builds the steel frame beam 4 through the tower crane, so that subsequent workers can walk on the steel frame beam 4 through the tower crane to install the first support 8, the second support 9 and the lower tower column mold 2;

[0048] Step four, the staff passes the horizontal pulling steel cable 11 through the grommet 10, and uses the horizontal pulling steel cable 11 to pull the first supports 8 on both sides of the steel frame column 3 and the steel frame beam 4 to each other, so as to avoid the first support 8, the second support 9 and the lower tower column mold 2 from falling due to too large inclination, then the first cable frame 6 and the second cable frame 7 are combined and sleeved outside the steel frame column 3 and the horizontal pulling steel cable 11, and the bolts are tightened to limit the first cable frame 6 and the second cable frame 7 together, so as to share the front and rear direction force between the first support 8, the second support 9 and the steel frame column 3, and reduce the possibility of the first support 8 and the second support 9 falling forward and backward.

[0049] Example two:

[0050] On the basis of the above-mentioned example one, in order to further increase the stability, the following settings are made.

[0051] Reference Figure 2 In the above-mentioned example, the outer surface and the back of the steel frame beam 4 are provided with multiple diagonal steel cables 5, which are mirror image distributed, so as to pull the steel frame column 3 and the steel frame beam 4, and avoid the steel frame column 3 and the steel frame beam 4 from falling backward and forward due to the influence of the horizontal pulling steel cable 11.

[0052] A support construction method for large inclination lower tower column construction, the specific steps are as follows:

[0053] Step one, while setting up the steel frame beam 4, the staff will connect the cable 5 respectively to the steel frame beam 4 and the ground, and then through the first cable frame 6, the second cable frame 7 and the horizontal cable 11 to make the first support 8, the second support 9 and the steel frame column 3 share the force in the front and back direction, reduce the possibility of the first support 8 and the second support 9 falling forward and backward, and cooperate with the cable 5 to pull the steel frame column 3 and the steel frame beam 4, so as to avoid the steel frame column 3 and the steel frame beam 4 from being affected by the horizontal cable 11 and falling backward.

[0054] Although the embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A support structure for large inclination under-tower column construction, comprising a pier base (1), characterized in that: The first support (8) and the second support (9) are arranged on both sides of the top of the pier seat (1), and a plurality of the first supports (8) and the second supports (9) are arranged.

2. The support structure for large-dip-angle under-tower column construction of claim 1, wherein: The first cable frame (6) and the second cable frame (7) are connected through bolts, and the first cable frame (6) and the second cable frame (7) are connected with the steel frame column (3) through bolts.

3. The support structure for large-dip-angle under-tower column construction of claim 1, wherein: The steel frame column (3) and the steel frame beam (4) are arranged in a plurality of forms, and the plurality of steel frame columns (3) are arranged in a rectangular array, and the plurality of steel frame beams (4) are arranged at equal intervals.

4. The construction method of the support structure for large-dip-angle lower tower column construction according to any one of claims 1 to 3, which comprises the following specific steps: Step one, the workers first build the steel frame column (3) on the top of the pier seat (1) through the tower crane, and first build a layer of steel frame beam (4), the building method is to fasten the steel frame column (3) and the steel frame beam (4) through bolts, angle steels and other traditional fastening structures for limiting steel structures, so that the workers can walk on the steel frame beam (4) through the tower crane to install the first support (8), the second support (9) and the lower tower column mold (2); Step two, the workers place the first support (8) and the second support (9) on the pier seat (1) through the tower crane and fasten them through bolts, and build other first supports (8) and second supports (9) on the top of the first support (8) and the second support (9), and the lower tower column mold (2) is divided into multiple parts and fixed with multiple first supports (8) and second supports (9), so that the workers can build the lower tower column mold (2) while building the first support (8) and the second support (9) through the tower crane; Step three, as the first support (8) and the second support (9) are built, the workers also build the steel frame beam (4) through the tower crane, so that the workers can walk on the steel frame beam (4) through the tower crane to install the first support (8), the second support (9) and the lower tower column mold (2), and the workers connect the cable-stayed cable (5) with the steel frame beam (4) and the ground respectively. Step four, the staff will pull the steel cable (11) through the grommet (10), through the pull the steel cable (11) can make the first support (8) on both sides of the steel column (3) and steel beam (4) can pull each other, avoid the inclination is too large to cause the first support (8), the second support (9) and the lower tower column mold (2) to dump, after the first cable frame (6) and the second cable frame (7) are combined and put on the outside of the steel column (3) and the pull the steel cable (11), and the bolt is tightened to make the first cable frame (6) and the second cable frame (7) are limited together, can make the first support (8), the second support (9) and the steel column (3) between the front and back direction of force, reduce the possibility of the first support (8) and the second support (9) to dump forward and backward, cooperate with the cable-stayed steel cable (5) to pull the steel column (3) and the steel beam (4), avoid the steel column (3) and the steel beam (4) to be affected by the pull the steel cable (11) to dump forward and backward.

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