A segmented beam-column casting construction method
Through the segmented beam-column casting method, using prefabricated internal support structures and cylindrical formwork, the problems of long construction period and positioning error in the column-first, beam-later construction method were solved, and safe and efficient beam-column casting was achieved, improving construction efficiency and structural strength.
Patent Information
- Application Number
- CN202311086841.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-28
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2043-08-28
AI Technical Summary
The existing construction method of first building columns and then beams prolongs the construction period, the positioning errors of beams and columns cannot be adjusted, and the support of beams after concrete pouring is unsafe.
A segmented beam-column casting method is adopted, utilizing prefabricated internal support structures, including beam internal supports and column internal supports. An internal support skeleton is formed by steel columns and steel ropes to ensure that the beams and columns are accurately positioned before casting and provide stable support during the concrete solidification process. Cylindrical formwork is used for segmented casting to simplify the construction process.
It shortens the construction period, ensures the accurate position of beams and columns, improves construction safety and the strength of the formed structure, eliminates casting gaps, provides stable support, and reduces positioning errors.
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Figure CN116927495B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of beam-column construction, and particularly relates to a segmented beam-column casting construction method. Background Art
[0002] The casting and forming of beams and columns usually adopts the construction method of first casting columns and then beams. The specific construction steps include: dividing the flow section and determining the turnover plan; drawing the formwork matching diagram; centralized processing of column formwork; erecting the beam and slab support frame; hoisting the column formwork; pouring column concrete; removing the column formwork; erecting the formwork between the column and the beam and slab; reinforcing the beam and slab support system; pouring beam and slab concrete; and finally removing the beam and slab formwork.
[0003] Chinese patent publication number CN105569070A discloses a method for casting large-scale concrete beam-column structures, including the following steps: a) setting up a column reinforcement framework, b) positioning and setting up column formwork, c) installing a column formwork support system, d) pouring concrete into the column formwork, e) inserting reinforcement bars at the top of the column before initial setting, f) removing the column formwork after reaching the desired strength, g) roughening the top of the column, h) setting up a crossbeam reinforcement framework, i) setting up the crossbeam formwork and its support system, j) pouring concrete into the crossbeam formwork and vibrating it, and k) removing the formwork for curing. This involves constructing the columns first, followed by casting the beams.
[0004] The column-first, beam-later construction method is adopted for safety reasons. For columns formed by pouring concrete, they are not sufficient to provide safe and reliable support for beams before the concrete solidifies. However, the column-first, beam-later construction method requires column construction first, and waiting for it to solidify, which generally takes 3-5 days. Then beam construction is carried out, which also requires 3-5 days, which prolongs the construction period. In addition, the column construction and beam construction positioning are operations at different stages. The beam is positioned after the column is finalized. The beam can only be positioned based on the column. The beam-column positioning error coordination cannot adjust the column, especially for problems existing between some beam-column nodes. Summary of the Invention
[0005] In order to solve the above technical problems, the technical solution of the present invention is:
[0006] A segmented beam-column casting construction method comprises the following steps:
[0007] S1: Prefabricated internal support, including beam internal support and column internal support with the same structure;
[0008] S2: Install the column inner support on the column base, and then install the top seat on the top of the column inner support, which is on the same vertical line as the center line of the base;
[0009] S3: With the top seat as the base point, erect at least two sets of beam external supports distributed with the center of the top seat as the midpoint;
[0010] S4: Install the inner beam support. The center of the inner beam support is supported by the top seat, and both ends are supported by at least one set of outer beam supports.
[0011] S5: Spot weld the nodes between the column inner support and the base, the column inner support and the top seat, and the beam inner support and the top seat;
[0012] S6: Column casting in sections: first install the column formwork in sections, then pour concrete into the column formwork in sections;
[0013] S7: Erect beam formwork support, install beam formwork, and then pour concrete into the beam formwork as a whole;
[0014] S8: After the concrete solidifies to a certain strength, remove the beam formwork, beam external support and column formwork;
[0015] The inner support prefabrication method comprises the following steps:
[0016] S11: A plurality of integrally formed steel columns are used as a skeleton, wherein the steel columns are provided with a plurality of locking holes along the vertical direction, and the locking holes between adjacent steel columns are staggered;
[0017] S12: Arrange a plurality of steel columns into a ring with equal spacing, and fix the relative positions of the steel columns;
[0018] S13: The steel rope passes through the locking holes in sequence;
[0019] S14: Adjust the tightness of the steel rope and spot weld the nodes between the two ends of the steel rope and the steel column.
[0020] Specifically, the cross section of the steel column is composed of a rectangle and a triangle, one side of the triangle is connected to one side of the rectangle, and the connecting sides are of equal length.
[0021] Specifically, the base and top seat are provided with blind holes corresponding to the steel columns at relative positions. The inner support installation of the S2 column is to insert the steel column into the blind hole of the base, adjust the top position of the steel column, and then plug the blind hole of the top seat into the steel column.
[0022] Specifically, the middle of the top seat is hollowed out and a pillar corresponding to the position of the blind hole and extending upward in the vertical direction is provided at its upper end. The pillar is provided with a horizontal through hole for the steel column supported by the beam to pass through.
[0023] Specifically, the top seat is an integrally formed structure.
[0024] Specifically, S2 includes measuring the center positions of the top seat and the base using the plumb line method after the top seat has been installed, adjusting the relative positions of the top seat and the base until the centers of the two are located on the same plumb line, and spot welding all nodes of the steel ropes and steel columns in the support column.
[0025] Specifically, the outer support of the beam in S3 includes a bracket, a positioning slot set on the top of the bracket, and a detachable cover plate. The cover plate has holes corresponding to the positions of the steel columns in the inner support of the beam. The installation method of the outer support of the beam includes the following steps:
[0026] S31: Assemble the cover plate to the inner support of the beam, insert the steel column into the hole on the cover plate, and fix the relative position of the steel column and the cover plate;
[0027] S32: Place the brackets according to the measurement position, and the center lines of all brackets under the support in the same beam and the center line of the top seat are in the same plane;
[0028] S33: The sealing plate is placed in the positioning groove.
[0029] Specifically, the column segment casting includes the following steps:
[0030] S61: Process the column formwork in the formwork yard according to the formwork drawing;
[0031] S62: Assemble the column formwork to form an enclosed cylindrical structure;
[0032] S63: Brush release agent on the inside of the column formwork;
[0033] S64: Guide inclined supports are provided around the inner support of the column;
[0034] S65: The hoisted column formwork is lowered along the guide inclined support until it contacts the base / another column formwork, the guide inclined support is removed, and concrete is poured into the column formwork.
[0035] Specifically, installing the beam formwork in S7 includes the following steps:
[0036] S71: Process the beam formwork, which includes two side formworks and two bottom formworks, and apply a release agent on the inner side of the beam formwork;
[0037] S72: Install bottom formwork between the top seat and the outer support of the beam;
[0038] S73: Side formwork is set on both sides of the inner support of the beam, with both ends of the side formwork contacting the outer supports of the beam erected on both ends of the inner support of the beam, fixing the relative position of the side formwork and the bottom formwork;
[0039] S74: Use several crossbeams to fix the relative positions of the tops of the two side formworks.
[0040] The technical solution provided by the present invention has the following advantages compared with the prior art:
[0041] The internal support structure of the integrated frame beams and columns is positioned before pouring, and the relative positions of the beams and columns are adjusted to ensure the accuracy of the beam and column sizes and relative positions after pouring. The concrete of the beams and columns is poured successively, and the poured concrete is slow-setting at the same time, shortening the construction period. The internal support is used as the skeleton, and the external support of the beam is used to assist in bearing the load, providing load-bearing support for the beams during the pouring of concrete and slow-setting, eliminating safety hazards. The column body is cast in sections, and the pouring port does not need to extend from the top of the column to the bottom of the column, eliminating the pouring gap and improving the structural strength of the beam and column after forming.
[0042] 2. Use steel columns and steel ropes to set up internal supports. The steel ropes have a certain amount of tension to eliminate the internal forces on each steel column during the concrete pouring and solidification process, ensure the verticality of the steel column, and improve the supporting strength of the column to the beam.
[0043] 3. Use several sections of cylindrical column formwork. The column formwork is made and assembled in advance. Before pouring in one stage, a formwork is hoisted and the hoisted formwork is buckled with the previous formwork. It is simple and fast, shortens the construction period, and is disassembled after the concrete solidifies. BRIEF DESCRIPTION OF THE DRAWINGS
[0044] Figure 1 This is a flow chart of a segmented beam-column casting construction method according to an embodiment of the present invention;
[0045] Figure 2 This is the internal support construction drawing of the beam column in the embodiment of the present invention
[0046] Figure 3 This is the inner support prefabrication method in the embodiment of the present invention;
[0047] Figure 4 This is a diagram of the internal support structure in an embodiment of the present invention;
[0048] Figure 5 This is a method for installing an external beam support in an embodiment of the present invention;
[0049] Figure 6 This is a column segmented casting method according to an embodiment of the present invention;
[0050] Figure 7 This is a beam template installation method according to an embodiment of the present invention;
[0051] Figure 8 This is a structural diagram of the top seat in the fourth embodiment of the present invention;
[0052] Figure 9 This is a cross-sectional view of a column template in Example 6 of the present invention;
[0053] Figure 10 This is a structural diagram of the guide oblique support in Example 7 of the present invention;
[0054] Figure 11 It is a cross-sectional view of the beam template in Example 8 of the present invention.
[0055] As shown in the figure: 10, beam internal support; 20, column internal support; 21, steel column; 22, steel rope; 23, locking hole; 30, top seat; 31, pillar; 32, through hole; 40, base; 50, column formwork; 60, beam formwork; 61, side formwork; 62, bottom formwork; 70, guide oblique support. DETAILED DESCRIPTION
[0056] For ease of understanding, the segmented beam-column casting construction method is described below in conjunction with embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.
[0057] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations and positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0058] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.
[0059] like Figures 1 to 2 As shown, a segmented beam-column casting construction method comprises the following steps:
[0060] S1: Prefabricated internal support, including beam internal support 10 and column internal support 20 with the same structure;
[0061] S2: Install the column support 20 on the column base 40, and then install the top seat 30 on the top of the column support 20, which is on the same vertical line as the center line of the base 40. The base 40 and the top seat 30 are both provided with blind holes corresponding to the steel columns 21 at relative positions. The column support 20 is installed by inserting the steel column 21 into the blind hole of the base 40, adjusting the position of the top of the steel column 21, and then plugging the blind hole of the top seat 30 into the steel column 21;
[0062] After the top seat 30 has been installed, the center positions of the top seat 30 and the base 40 are measured using the plumb line method, and the relative positions of the top seat 30 and the base 40 are adjusted until the centers of the two are on the same vertical line. All nodes of the steel rope 22 and the steel column 21 in the column inner support 20 are spot welded;
[0063] S3: With the top base 30 as the base point, erect at least two sets of beam external supports distributed with the center of the top base 30 as the midpoint;
[0064] S4: Install the inner support of the beam. The center of the inner support of the beam is supported by the top seat 30, and the two ends are supported by at least one set of outer support of the beam. The inner support structure of the beam and column is integrated. Positioning is done before pouring, and the relative position of the beam and column is adjusted to ensure the accuracy of the size and relative position of the beam and column after pouring.
[0065] S5: Spot weld the nodes between the column inner support 20 and the base 40, the column inner support 20 and the top seat 30, and the beam inner support and the top seat 30 to reduce the deviation during the pouring process.
[0066] S6: Column segment casting: first install the column formwork 50 segment by segment, then pour concrete into the column formwork 50 segment by segment, using the internal support as the skeleton, and cast the column segment by segment. The pouring port does not need to extend from the top of the column to the bottom of the column, eliminating the pouring gap and improving the strength of the beam-column structure after forming;
[0067] S7: Setting up the beam formwork 60 support, installing the beam formwork 60, and then pouring concrete into the beam formwork 60 as a whole;
[0068] S8: After the concrete solidifies to a certain strength, the beam formwork 60, beam support and column formwork 50 are removed.
[0069] like Figures 3 and 4 As shown, the internal support prefabrication method in S1 includes the following steps:
[0070] S11: A plurality of integrally formed steel columns 21 are used as a skeleton, wherein the steel columns 21 are provided with a plurality of locking holes 23 along the vertical direction, and the locking holes 23 between adjacent steel columns 21 are staggered;
[0071] S12: Arrange a plurality of steel columns 21 into a ring with equal spacing, and fix the relative positions of the steel columns 21;
[0072] S13: The steel rope 22 passes through the locking holes 23 in sequence;
[0073] S14: Adjust the tightness of the steel rope 22, spot weld and fix the nodes between the two ends of the steel rope 22 and the steel column 21, and retain the mobility between the middle of the steel rope 22 and the locking hole 23 of the steel column 21. This is beneficial for adjusting the distance between each steel column 21 according to the positioning requirements of the assembly site during the assembly process to ensure that the steel column 21 is perpendicular to the base 40 and the bottom surface of the top seat 30 is perpendicular to the steel column 21. Among them, the steel rope 22 has a certain amount of tension, which eliminates the internal force on each steel column 21 during the concrete pouring and solidification process, ensures that the steel column 21 is vertical, and improves the supporting strength of the column to the beam.
[0074] like Figure 5 As shown, the outer support of the beam in S3 includes a bracket, a positioning slot set on the top of the bracket, and a detachable cover plate. The cover plate has holes corresponding to the positions of the steel columns 21 in the inner support 10 of the beam. The installation method of the outer support of the beam includes the following steps:
[0075] S31: Assemble the closing plate onto the inner support 10 of the beam, insert the steel column 21 into the hole on the closing plate, and fix the relative position of the steel column 21 and the closing plate; the closing plate can close the two ends of the beam template 60. During operation, the surface of the closing plate facing the top seat 30 is coated with a release agent to facilitate the removal of the closing plate, and eliminate the problem of uncertain spacing caused by the overhang of the two ends of the steel column 21 of the inner support 10 of the beam, ensuring that the steel column 21 of the inner support 10 of the beam is parallel to the horizontal plane, thereby improving the stability of the beam and the lateral force strength of the beam;
[0076] S32: Place the brackets according to the measurement position. The center lines of all brackets below the support 10 in the same beam are in the same plane as the center line of the top seat 30, and measurement can be performed by pulling the wire;
[0077] S33: The sealing plate is placed in the positioning groove, and the positioning groove is used for the bottom of the sealing plate to be embedded and fixed. The positioning groove and the sealing plate are assembled quickly and easily.
[0078] like Figure 6 As shown, the segmented casting method of the S6 center column includes the following steps:
[0079] S61: Centrally process the column formwork 50 in the formwork yard according to the formwork drawing;
[0080] S62: Assembling column formwork 50 to form an enclosed cylindrical structure. In this embodiment, several sections of cylindrical column formwork 50 are used. The column formwork 50 are prefabricated and assembled. Before pouring in a stage, a formwork is hoisted and fastened to the previous formwork. This is simple and fast, shortening the construction period. The formwork is disassembled after the concrete solidifies.
[0081] S63: Brush the release agent on the inner side of the column formwork 50 and hoist the column formwork 50.
[0082] like Figure 7 As shown, the S7 center beam template 60 installation method includes the following steps:
[0083] S71: Processing the beam formwork 60, which includes two side formworks 61 and two bottom formworks 62. Applying a release agent on the inside of the beam formwork 60 allows for quick and easy demoulding after the concrete reaches a certain strength, while also preventing damage to the concrete caused by demoulding.
[0084] S72: Install a bottom template 62 between the top seat 30 and the outer support of the beam;
[0085] S73: Side templates 61 are set on both sides of the beam inner support 10, and both ends of the side template 61 are respectively in contact with the beam outer supports erected at both ends of the beam inner support 10, fixing the relative position of the side template 61 and the bottom template 62.
[0086] Example 2
[0087] The difference between this embodiment and the first embodiment is that, during the prefabrication process of the inner support, specifically after adjusting the tightness of the steel rope 22, the nodes between the two ends of the steel rope 22 and the steel column 21 are first spot welded and fixed, and then all the remaining nodes between the steel rope 22 and the steel column 21 are spot welded and fixed, and then the inner support is transported from the factory to the construction site for assembly.
[0088] Example 3
[0089] The difference between this embodiment and the first embodiment is that the cross section of the steel column 21 is composed of a rectangle and a triangle, one side of the triangle is connected to one side of the rectangle, and the connected sides are of equal length. The locking hole 23 is opened in the triangle, and the ends of the locking hole 23 are respectively located on the non-connected sides of the triangle. When the steel column 21 is assembled, the line connecting the non-connected vertices of the triangle is close to the top seat 30. The opening setting can quickly adjust the direction of the locking hole 23 so that the steel rope 22 is located on the inner side of the steel column 21. When the inner support is prefabricated, the relatively fixed position of the steel column 21 is also adopted in the same way to ensure that the steel rope 22 will not be tangled when threading.
[0090] Example 4
[0091] like Figure 8As shown, the difference between this embodiment and the first embodiment is that the middle part of the top seat 30 is hollowed out and the upper end is provided with a pillar 31 corresponding to the position of the blind hole and extending upward in the vertical direction. The pillar 31 is provided with a horizontal through hole 32 for the steel column 21 of the beam inner support 10 to pass through. The hollowing out of the middle part of the top seat 30 can increase the concrete connection strength above and below the top seat 30. Preferably, the middle plate of the top seat 30 can be set in a grid shape; the purpose of the relative position setting of the pillar 31 and the steel column 21 of the column inner support 20 is to analyze the force. After the beam is subjected to force, the force is concentrated on the steel column 21 of the beam inner support 10. The steel column 21 of the beam inner support 10 can transfer part of the force to the pillar 31, and then the pillar 31 transfers the force downward in the vertical direction to the steel column 21 of the column inner support 20, thereby increasing the proportion of the beam force transmitted to the column. Relatively speaking, the support strength of the column is higher than the support strength of the beam, which increases the proportion, increases the support strength of the beam and column structure, and thus improves the stability of the building structure.
[0092] Example 5
[0093] The difference between this embodiment and the first embodiment is that the top seat 30 is an integrally formed structure produced by casting and is a steel structure, which increases the connection strength at the beam and column nodes.
[0094] Example 6
[0095] like Figure 9 As shown, the difference between this embodiment and embodiment 1 is that the column formwork 50 in this embodiment is formed by four single formwork panels. Specifically, 40*80mm square wood is nailed to the outside of the formwork panel. The nailed wood squares are formed into a grid shape, and then fixed column hoops are used to reinforce the outer periphery of the four formwork panels. The end points of adjacent fixed column hoops are staggered and fixed with fixing pins. After the poured concrete reaches a certain strength, the fixed column hoops can be disassembled and the single formwork panel can be disassembled.
[0096] Example 7
[0097] like Figure 10As shown, the difference between this embodiment and embodiment 1 is that, in this embodiment, before the column formwork 50 is hoisted at S63, a guide oblique support 70 is set on the periphery of the column inner support 20, and the hoisted column formwork 50 is lowered along the guide oblique support 70 until it contacts the base 40 / another column formwork 50, and after the column formwork 50 is hoisted at S63, the guide oblique support 70 is taken out and concrete is poured into the column formwork 50, wherein, in this embodiment, an assembled cylindrical column formwork 50 is used, the column formwork 50 has an integral structure and is heavy, and the hoisting process is more dangerous than the hoisting of a single formwork, and unlike a single formwork, the position between adjacent formwork panels can still be adjusted after the hoisting is completed, the cylindrical column formwork 50 is difficult to move and adjust its position after it is hoisted and dropped, therefore, the guide oblique support 70 is set, which can quickly position the cylindrical column formwork 50, shorten the hoisting time, reduce the hoisting risk, and position it once and accurately, so as to avoid the column inner support 20 from being hit during the hoisting process. The formed column inner support 20 is located at the center of the column, and the column structure is reasonably distributed.
[0098] Example 8
[0099] like Figure 11 As shown, the difference between this embodiment and the first embodiment is that in S73, 40*80mm square timber is nailed to the outside of the side formwork 61 and the bottom formwork 62, and the nailed timber forms a grid shape, and a number of equidistantly spaced fixed beam hoops are fixed to the outside of the side formwork 61 and the bottom formwork 62, the shaped beam hoops of the bottom formwork 62 are perpendicular to the side formwork 61, and the shaped beam hoops of the side formwork 61 are perpendicular to the bottom formwork 62, and the ends of the shaped beam hoops of the bottom formwork 62 and the shaped beam hoops of the side formwork 61 are staggered and fixed, thereby fixing the relative position of the side formwork 61 and the bottom formwork 62. After the relative position of the side formwork 61 and the bottom formwork 62 is fixed in S73, the shaped beam hoops of the two side formworks 61 are connected by a crossbeam to form a ring structure, reinforce the beam formwork 60, and inject cement mortar from the gap between adjacent beams when pouring concrete.
[0100] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that the technical solutions described in the above embodiments may be modified or some or all of the technical features thereof may be replaced with equivalents, and that such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of the present invention.
Claims
1. A segmented beam-column casting construction method, characterized in that: The following steps are involved: S1: Prefabricated internal support, including beam internal support and column internal support with the same structure; S2: Install the column support on the base of the column, and then install the top seat on the top of the column support, which is on the same vertical line as the center line of the base; S3: With the top seat as the base point, erect at least two sets of beam external supports distributed with the center of the top seat as the midpoint; S4: Install the inner beam support. The center of the inner beam support is supported by the top seat, and both ends are supported by at least one set of outer beam supports. S5: Spot weld the nodes between the column inner support and the base, the column inner support and the top seat, and the beam inner support and the top seat; S6: Column casting in sections: first install the column formwork in sections, then pour concrete into the column formwork in sections; S7: Erect beam formwork support, install beam formwork, and then pour concrete into the beam formwork as a whole; S8: After the concrete solidifies to a certain strength, remove the beam formwork, beam external support and column formwork; The inner support prefabrication method comprises the following steps: S11: A plurality of integrally formed steel columns are used as a skeleton, wherein the steel columns are provided with a plurality of locking holes along the vertical direction, and the locking holes between adjacent steel columns are staggered; S12: Arrange a plurality of steel columns into a ring with equal spacing, and fix the relative positions of the steel columns; S13: The steel rope passes through the locking holes in sequence; S14: Adjust the tightness of the steel rope and spot weld the nodes between the two ends of the steel rope and the steel column.
2. The segmented beam-column casting construction method according to claim 1, characterized in that: The cross section of the steel column is composed of a rectangle and a triangle, one side of the triangle is connected to one side of the rectangle, and the two connected sides are of equal length.
3. The segmented beam-column casting construction method according to claim 1, characterized in that: The base and top seat are both provided with blind holes corresponding to the steel columns at relative positions. The inner support installation of the S2 column is to insert the steel column into the blind hole of the base, adjust the top position of the steel column, and then plug the blind hole of the top seat into the steel column.
4. The segmented beam-column casting construction method according to claim 3, characterized in that: The middle part of the top seat is hollowed out and a pillar corresponding to the position of the blind hole and extending upward in the vertical direction is provided at its upper end. The pillar is provided with a horizontal through hole for the steel column supported by the beam to pass through.
5. The segmented beam-column casting construction method according to claim 4, characterized in that: The top seat is an integrally formed structure.
6. The segmented beam-column casting construction method according to claim 1, characterized in that: S2 includes measuring the center positions of the top seat and the base with the plumb line method after the top seat has been installed, adjusting the relative positions of the top seat and the base until the centers of the two are on the same plumb line, and spot welding all nodes of the steel rope and steel column in the column support.
7. The segmented beam-column casting construction method according to claim 1, characterized in that: The outer support of the S3 beam includes a bracket, a positioning slot set on the top of the bracket, and a detachable cover plate. The cover plate has holes corresponding to the positions of the steel columns in the inner support of the beam. The installation method of the outer support of the beam includes the following steps: S31: Assemble the cover plate to the inner support of the beam, insert the steel column into the hole on the cover plate, and fix the relative position of the steel column and the cover plate; S32: Place the brackets according to the measurement position, and the center lines of all brackets under the support in the same beam and the center line of the top seat are in the same plane; S33: The sealing plate is placed in the positioning groove.
8. The segmented beam-column casting construction method according to claim 1, characterized in that: The segmented column casting process includes the following steps: S61: Process the column formwork in the formwork yard according to the formwork drawing; S62: Assemble the column formwork to form an enclosed cylindrical structure; S63: Brush release agent on the inside of the column formwork; S64: Guide inclined supports are provided around the inner support of the column; S65: The hoisted column formwork is lowered along the guide inclined support until it contacts the base / another column formwork, the guide inclined support is removed, and concrete is poured into the column formwork.
9. The segmented beam-column casting construction method according to claim 1, characterized in that: The steps for installing beam formwork in S7 are as follows: S71: Process the beam formwork, which includes two side formworks and two bottom formworks, and apply a release agent on the inner side of the beam formwork; S72: Install bottom formwork between the top seat and the outer support of the beam; S73: Side formwork is set on both sides of the inner support of the beam, with both ends of the side formwork contacting the outer supports of the beam erected on both ends of the inner support of the beam, fixing the relative position of the side formwork and the bottom formwork; S74: Use several crossbeams to fix the relative positions of the tops of the two side formworks.
Citation Information
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