CN115182576B - Concrete diagonal column formwork structure and construction method thereof - Google Patents
Concrete diagonal column formwork structure and construction method thereof Download PDFInfo
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- CN115182576B CN115182576B CN202210857991.XA CN202210857991A CN115182576B CN 115182576 B CN115182576 B CN 115182576B CN 202210857991 A CN202210857991 A CN 202210857991A CN 115182576 B CN115182576 B CN 115182576B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
- E04G21/08—Internal vibrators, e.g. needle vibrators
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- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to a concrete diagonal column formwork structure and a construction method thereof, which aim to solve the problems of low load and inconvenient construction in the existing diagonal column structure and construction method; comprises a scaffold, a tie rod, an inner side frame, a steel hoop and an outer formwork; the inner side frame is of a traditional vertical positioning upright post and a vertical wall structure, and the positioning upright post is arranged close to the vertical wall; the scaffold is arranged around the outer formwork, and one side of the scaffold is also close to the vertical wall; the outer formwork is directly connected with the scaffold; the outer formwork is also connected with the wall body through a first tie rod; the steel hoop is arranged on the inner side of the outer supporting die and is connected with the positioning upright post through a second tie rod; the outer support die is arranged on the periphery of the steel hoop, and the outer support die and the steel hoop are connected with the inner side frame through the first tie rod and the second tie rod respectively, so that the transverse load capacity of the steel hoop is ensured.
Description
Technical Field
The invention relates to the field of buildings, in particular to a concrete diagonal column formwork structure and a construction method thereof.
Background
In some special large buildings there may be support structures for the diagonal columns, such as large exhibition halls, passenger centers, gyms etc. Compared with the traditional vertical support column, the inclined column support can reduce the occupied area on the premise of ensuring the indoor area, and in addition, the building appearance design can be more flexible. In the current construction process of the diagonal column, firstly, a steel structure such as a scaffold is required to be built and hooping is bound, so that the diagonal column is positioned, then, a diagonal column template is built by using a multi-layer plate according to the shape of the hooping and the construction drawing, and finally, concrete is poured into the inner side of the template, so that the construction process is completed.
Because of the special structure of the inclined column, great obstruction can be brought to the construction process. For example, a tilt column with a tilt angle of 72 ° will generate a horizontal tilt force of about 3KN in the horizontal X-Y plane for every one meter increase in height in the vertical Z direction, depending on the results of the force analysis, and a horizontal tilt force exceeding 30KN for a tilt column of tens of meters will be generated, which will present a great challenge to the tolerance of the tilt column template, especially for a floor template, i.e. a multi-layer board near the floor side. Therefore, in the existing construction of the diagonal column with larger cross-sectional area, the mode of pouring from inside to outside for multiple times is adopted, and the pressure of the diagonal column template is used for completing the whole construction. However, in the process of pouring for multiple times, as the pouring times are increased, a new problem of inaccurate positioning can be generated, so that the position of the inclined column for completing construction deviates from the position of the drawing. Therefore, a diagonal column structure with accurate positioning and strong formwork loading capacity and a construction method are needed.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a concrete diagonal column formwork structure and a construction method thereof.
In order to solve the problems, the invention adopts the following technical scheme:
a concrete diagonal column formwork structure comprises a scaffold, a tie rod, an inner side frame, a steel hoop and an outer formwork; the inner side frame is of a traditional vertical positioning upright post and a vertical wall structure, and the positioning upright post is arranged close to the vertical wall; the scaffold is arranged around the outer formwork, and one side of the scaffold is also close to the vertical wall; the outer formwork is directly connected with the scaffold; the outer formwork is also connected with the wall body through a first tie rod; the steel anchor ear sets up in outer formwork inboard, and the steel anchor ear passes through the second tie rod and is connected with the location stand.
Further, the scaffold is a plate buckle supporting frame and comprises a cross bar supporting frame, a square supporting frame and an inclined supporting frame
A supporting frame; the transverse rod support frame is arranged on one side of the outer formwork, which is close to the ground, and comprises a first vertical rod and a second transverse rod which are vertically arranged; the diagonal bracing frame is arranged on the left side surface and the right side surface which are connected with one side, close to the bottom surface, of the outer supporting die and comprises a second vertical rod, a second transverse rod and a diagonal rod, wherein the second vertical rod is vertically arranged, and the second transverse rod is transversely arranged; the square support frame is arranged on one side of the inclined support frame, which is far away from the outer support die, and comprises a third transverse rod which is transversely arranged and a third vertical rod which is vertically arranged.
Further, the first upright posts in the cross bar support frame are arranged in two rows, wherein the first upright posts in each row are positioned on the same plane and are parallel to each other; the first cross rods are arranged between the adjacent first vertical rods, and comprise the adjacent first vertical rods in the same row and two corresponding first vertical rods in different rows, at least one first cross rod is arranged between the adjacent two first vertical rods, and the first cross rods between any two first vertical rods are parallel to each other; the inclined support frames are arranged on the left side and the right side of the outer support die symmetrically; the second vertical rods in the inclined strut of one side are parallel to each other and are vertically arranged, a plurality of second cross rods which are parallel to each other and are horizontally arranged are arranged between the adjacent second vertical rods, wherein an inclined rod is arranged inside a quadrangle formed by any one of the two adjacent second cross rods and the two adjacent second vertical rods, the inclined rod is arranged along any diagonal line in the quadrangle, and the diagonal directions of the quadrangles corresponding to the inclined rods in the inclined strut of the same side are consistent.
Further, the second tie rod is an internal wire steel bar tie rod, wherein the diameter range of the second tie rod is 10-50mm.
Further, the positioning upright post is a square upright post; the positioning upright post is connected with the second tie rod through I-steel
The I-steel is attached to the side face of the positioning upright post and is positioned on one side of the positioning upright post away from the inclined post; the length of the I-steel is greater than the width of the side surface of the positioning upright post, which is clung to the I-steel; two ends of the I-steel are provided with hole sites for connecting the second tie rod, and the distance between the two hole sites is consistent with the diameter of the steel anchor ear.
The construction method of the concrete diagonal column is based on the formwork structure and comprises the following steps of:
step 1: engineering preparation, including drawing preparation, verification and preparation of materials, tools, sites and personnel;
step 2: building a scaffold and completing the construction of a concrete structure of the inner side frame; in the construction process of the inner side frame, a tie rod connecting part is required to be pre-buried at a set position in a concrete structure of the inner side frame and used for connecting the tie rod;
step 3: waiting for the concrete in the inner side frame to reach the age, and entering the next step;
step 4: manufacturing a steel hoop according to drawing parameters, and building an outer formwork; a tie rod is also connected between the outer formwork and the inner side frame in the process of building the outer formwork;
step 5: pouring the steel anchor ear in the outer supporting mould for a plurality of times;
step 6: and after the concrete poured in the steel anchor ear reaches the age, removing the tie rod, the steel anchor ear and the scaffold, and completing the construction of the inclined column.
Further, the height range of the steel hoop set in the step 4 is-0.1 m-21.5m, and the inclination angle is 72 degrees.
In the step 5, in the process of pouring the steel anchor ear, the poured concrete is conveyed to the position, close to the ground, of the steel anchor ear through a pouring channel to start pouring; wherein the pouring channel is a hard PVC pipe or a soft rubber pipe with set length and pipe diameter; and a vibrating rod is also arranged in the pouring channel.
Further, pouring the inner side of the steel hoop comprises the following steps:
step 51: placing the pouring channel into the steel hoop to set depth; the depth is set to be a depth range of 0.1-0.5 m from the bottom of the steel hoop;
step 52: sending the vibrating rod into a pouring channel, controlling the vibrating rod to be positioned in the pouring channel and keeping a length range of 0.1-0.3 m from the bottom outlet of the pouring channel;
step 53: pouring cement into a pouring channel and starting a vibrating rod, wherein the pouring speed is kept at S.Lm3/min, S represents the radial sectional area of a steel hoop, the unit is m2, and the value range of L is 0.05 m-3 m;
step 54: controlling the pouring channel and the vibrating rod to move outwards along the axial direction of the steel hoop at the rate of L meters/min until the length of 1/x of the total length of the steel hoop is moved;
step 55: stopping vibrating rod, waiting for set time until the cement poured reaches the age;
step 56: judging whether pouring of all spaces in the steel hoop is finished or not; if not, returning to the step 53; otherwise, pouring the inclined column is finished, and the step is finished.
In step 6, after the construction of the diagonal columns is completed, a beam is cast between adjacent diagonal columns.
The beneficial effects of the invention are as follows:
the outer support die is arranged on the periphery of the steel hoop, and the outer support die and the steel hoop are connected with the inner side frame through the first tie rod and the second tie rod respectively, so that the transverse load capacity of the steel hoop is ensured; the transverse rod support is arranged between the outer support die and the ground, and the inclined support frames are arranged on the two sides of the outer support die, so that the support of the outer support die is further realized, and the support strength of the outer support die to the steel anchor ear is ensured; the first tie rod comprises a length adjusting block for adjusting the length, so that the total length of the first tie rod is adjusted, and the effective tension of the outer formwork of the first tie rod can be ensured by matching with a torsion detection tool; building an outer formwork at the periphery of the steel hoop in the step 4, so that stability in the inclined column pouring process is realized; through in step 5, through the pouring method in the embodiment, the concrete can be conveyed to the appointed position inside the longer steel anchor ear by the concrete, and the clearance generated inside the inclined column pouring process can be effectively reduced.
Drawings
FIG. 1 is an overall construction diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of a diagonal brace according to a first embodiment of the invention;
FIG. 3 is a schematic view of a cross bar support frame according to a first embodiment of the present invention;
fig. 4 is a schematic diagram of a diagonal column according to a first embodiment of the present invention.
The attached drawings are used for identifying and describing: the horizontal pole support frame 1, square support frame 2, bracing frame 3, first tie rod 4, second tie rod 5, location stand 6, I-steel 7, wall body 8, steel staple bolt 9, outer formwork 10.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Embodiment one:
as shown in fig. 1 to 4, a concrete diagonal column formwork structure comprises a scaffold, a tie rod, an inner side frame, a steel hoop 9 and an outer formwork 10; the inner side frame is of a traditional vertical positioning upright column 6, a vertical wall body 8 and the like; the scaffold is built at the construction position of the diagonal column, namely around the outer formwork 10, and in the embodiment, one side of the scaffold is also arranged close to the vertical wall body 8; the positioning upright post 6 is arranged close to the vertical wall body 8 and is used for supporting the wall body 8, enhancing the load capacity of the wall body 8 and providing pulling force for the inclined post; the outer formwork 10 is connected with a scaffold; the outer formwork 10 is also connected with the wall body 8 through a first tie rod 4; the steel anchor ear 9 sets up in outer formwork 10 inboard, and steel anchor ear 9 passes through second tie rod 5 and is connected with location stand 6. In the embodiment the outer formwork 10 is used to support the steel hoops 9 and to limit the position of the steel hoops 9.
The positioning upright post 6 is a square upright post; the positioning upright post 6 is connected with the second drawknot rod 5 through the I-steel 7, wherein the I-steel 7 is attached to the side surface of the positioning upright post 6 and is positioned at one side of the positioning upright post 6 far away from the inclined post; the length of the I-shaped steel 7 is larger than the width of the side surface, which is clung to the I-shaped steel 7, of the positioning upright post 6, and the purpose is that the two ends of the I-shaped steel 7 can extend out of the clung surface of the positioning upright post 6; the two ends of the i-steel 7 are preset with hole sites for connecting the second tie bars 5, and it should be noted that in the embodiment, the distance between the two hole sites is consistent with the diameter of the steel anchor ear 9, so that the tie bars connected with the two ends of the i-steel 7 can be parallel to each other, and the stress of the two tie bars is ensured to be uniform. In the embodiment, the I-steel 7 adopts 16# I-steel, so that the strength is ensured.
The scaffold is a plate buckle supporting frame and comprises a cross bar supporting frame 1, a square supporting frame 2 and an inclined strut frame 3; the transverse rod support frame 1 is arranged on one side of the outer formwork 10, which is close to the ground, and the transverse rod support frame 1 comprises a first vertical rod and a second transverse rod which are vertically arranged; the inclined strut 3 is arranged on the left side surface and the right side surface which are connected with one side, close to the bottom surface, of the outer support die 10, and the inclined strut 3 comprises a second vertical rod, a second transverse rod and an inclined rod, wherein the second vertical rod is vertically arranged; the square support frame 2 sets up in the one side that outer formwork 10 was kept away from to the diagonal brace 3, and square support frame 2 includes the third horizontal pole of horizontal setting and the third pole setting of vertical setting. The first upright posts in the cross bar support frame 1 are arranged in two rows, wherein the first upright posts in each row are positioned on the same plane and are parallel to each other; the first transverse rods are arranged between the adjacent first vertical rods, each first transverse rod comprises adjacent first vertical rods in the same row and two corresponding first vertical rods in different rows, at least one first transverse rod is arranged between the adjacent two first vertical rods to be described, and the first transverse rods between any two first vertical rods are parallel to each other. By providing the cross bar support frame 1 on the side close to the ground among the sides of the outer formwork 10, the load bearing capacity of the outer formwork 10 to the vertical direction is enhanced, and to a certain extent, the load bearing capacity of the outer formwork 10 in the horizontal direction can also be increased. The inclined support frames 3 are arranged on two sides, and the inclined support frames 3 on two sides are symmetrically arranged on the left side and the right side of the outer support die 10, and one inclined support frame 3 is taken as an example; the second vertical rods in the inclined strut 3 on one side are parallel to each other and vertically arranged, a plurality of second cross rods which are parallel to each other and horizontally arranged are arranged between the adjacent second vertical rods, wherein an inclined rod is arranged inside a quadrangle formed by any one of the two adjacent second cross rods and the two adjacent second vertical rods, the inclined rod is arranged along any diagonal line in the quadrangle, and in the embodiment, the diagonal directions of the quadrangles corresponding to the inclined rods in the same inclined strut 3 are consistent, for example, the diagonal lines from the lower left vertex to the upper right vertex are all the diagonal lines from the lower right vertex to the upper left vertex. The third cross bar and the third upright bar in the square support frame 2 are connected by a disc buckle according to the position relation of the edges in the regular quadrangular prism, and in the embodiment, the third cross bar is positioned
The position of the third vertical rod corresponds to the position of the second vertical rod.
The first tie rod 4 is a tie rod which is buried in the wall body 8 in advance; the second tie rod 5 is an inner wire rebar tie rod, wherein the second tie rod has a diameter in the range of 10-50mm, and in an embodiment, the second tie rod 5 has a diameter of 20mm. The first tie rod 4 comprises a first connecting piece fixedly arranged on the wall body 8, a first pull rod hinged with the first connecting piece, a second pull rod hinged with the outer formwork, and a length adjusting block arranged between the first pull rod and the second pull rod, wherein the first pull rod and the second pull rod are both connected with the length adjusting block through threads; the length adjusting block is of a tubular structure provided with internal threads, wherein the threaded structure inside the length adjusting block is divided into two parts, the directions of the threads of the two parts are opposite, and the other parameters are consistent; in an embodiment, the interface of the two-part thread coincides with a radial cross section of half the length of the length adjustment block. The reason why the screw thread in the length adjustment block is provided according to the above-mentioned standard is to achieve that the first and second tie rods respectively connected to both ends of the length adjustment block can maintain the same retracted or extended state when the length adjustment block is rotated. In order to be convenient for adjust the length of first drawknot pole, still set up the lateral surface of length adjustment piece into regular hexagon, both the radial cross-section's of length adjustment piece outline is regular hexagon, is convenient for realize the cooperation of length adjustment piece and outside rotating tool. Through adjusting length adjustment piece, realize the length adjustment to first tie rod, the cooperation has the rotary tool that torsion detected, can guarantee the effective pulling force of first tie rod to outer formwork. It should be noted that in the embodiment, the number of the first tie bars and the second tie bars is at least one; all the first tie bars are arranged in mirror symmetry with respect to a plane perpendicular to the wall surface and passing through the axis of the outer formwork; all second tie bars are also arranged mirror-symmetrically with respect to a plane perpendicular to the wall surface and passing through the axis of the outer formwork.
The two ends of the length adjusting block are provided with unthreaded inner walls with set lengths, the first pull rod and the second pull rod are sleeved into the unthreaded inner walls and then rotated, and threaded connection of the first pull rod and the second pull rod with the length adjusting block is facilitated.
The steel hoop 9 is also provided with reinforcing steel bars on the inner side for improving the bearing strength and toughness of the poured diagonal column.
In the implementation process, the outer support die 10 is arranged on the periphery of the steel hoop 9, and the outer support die 10 and the steel hoop 9 are connected with the inner side frame through the first tie rod 4 and the second tie rod 5 respectively, so that the transverse load capacity of the steel hoop 9 is ensured; the cross bar support is arranged between the outer support die 10 and the ground, and the inclined support frames 3 are arranged on two sides of the outer support die 10, so that the outer support die 10 is further supported, and the supporting strength of the outer support die 10 on the steel hoop 9 is ensured; through setting up first tie rod including the length adjustment piece that is used for adjusting length, realize the regulation to the total length of first tie rod, cooperation torsion detection instrument can guarantee the effective pulling force of the outer formwork of first tie rod.
A construction method of a concrete diagonal column comprises the following steps:
step 1: engineering preparation, including drawing preparation, verification, and preparation of materials, tools, sites, personnel and the like;
step 2: building a scaffold in the formwork structure, and completing construction of a concrete structure of the inner side frame; in the construction process of the inner side frame, a tie rod connecting part is required to be pre-buried at a set position in a concrete structure of the inner side frame and used for connecting the tie rod;
step 3: waiting for the concrete in the inner side frame to reach the age, and entering the next step;
step 4: manufacturing a steel hoop 9 according to drawing parameters, and building an outer formwork 10; it should be noted that, in the process of building the outer formwork 10, a tie rod is also connected between the outer formwork 10 and the inner side frame;
step 5: pouring the steel hoop 9 in the outer formwork 10 is completed for a plurality of times;
step 6: and after the concrete poured in the steel anchor ear 9 reaches the age, removing the tie rod, the steel anchor ear 9, the scaffold and the like, and completing the construction of the inclined column.
The values of the concrete age in the step 3 are obtained according to the contents of table 1:
table 1 concrete age comparison table
In table 1, normal 42.5 represents normal 42.5 portland cement, and slag 32.5 represents slag 32.5 portland cement.
The height range of the steel anchor ear 9 set in the step 4 is-0.1 m-21.5m, the inclination angle is 72 degrees, because the inclined column parameters of the construction in the embodiment are the bottom height-0.1 m, the top height 21.5m and the inclination angle is 72 degrees. The process of installing the first tie bar in step 4 includes the steps of:
step 41: a first pull rod in the first tie rod is hinged with a first connecting piece embedded into a wall body, and the other end of the first pull rod is in threaded connection with a length adjusting block; in the embodiment, the first pull rod is turned into the screw thread with a set number of turns in the length adjusting block;
step 42: the second pull rod is connected with the other end of the length adjusting block in a threaded manner; in the embodiment, the second pull rod is turned into the screw thread with the set number of turns in the length adjusting block;
step 43: the other end of the second pull rod is hinged with the outer supporting die;
step 44: rotating the length adjusting block through a rotating tool provided with torque force detection;
step 45: recording the torque value of the rotating tool and judging whether the torque value is in a set torque range or not; if the torque force is within the torque force range, the installation and debugging of the first tie rod are completed, and the steps are finished; otherwise, entering the next step;
step 46: judging whether the recorded torque value exceeds a set torque range; if yes, the length adjusting block is rotated according to the direction of enabling the first pull rod and the second pull rod to extend out of the rotating adjusting block, and the step 44 is returned; if not, the length adjustment block is rotated in a direction such that the first and second tie rods extend into the rotation adjustment block, and the process returns to step 44.
The rotating tool with torque detection in step 44 is known in the art.
In the step 45, the torsion range is comprehensively obtained according to the total length of the first tie rod and the inclination angle of the first tie rod and the horizontal direction; wherein the longer the total length, the smaller the inclination angle, the smaller the maximum value and the minimum value of the torsion range; conversely, the shorter the total length, the greater the tilt angle, and the greater both the maximum and minimum values of the torsion range.
In the step 5, in the process of pouring the steel anchor ear 9, the poured concrete is conveyed to the position of the steel anchor ear 9 close to the ground through a pouring channel to start pouring; wherein, the pouring channel is a hard PVC pipe or a soft rubber pipe with set length and pipe diameter, and in the embodiment, the hard PVC pipe is adopted; and a vibrating rod is also arranged in the pouring channel. The pouring of the inner side of the steel hoop 9 comprises the following steps:
step 51: placing the pouring channel into the steel hoop 9 to set depth; the set depth is a depth range of 0.1-0.5 m from the bottom of the steel hoop 9;
step 52: sending the vibrating rod into a pouring channel, controlling the vibrating rod to be positioned in the pouring channel and keeping a length range of 0.1-0.3 m from the bottom outlet of the pouring channel;
step 53: pouring cement into a pouring channel and starting a vibrating rod, wherein the pouring speed is kept at S.Lm3/min, S represents the radial sectional area of the steel hoop 9, the unit is m2, and the value range of L is 0.05 m-3 m, including 0.1m, 0.3m, 0.5m, 0.7m, 0.9m, 1.1 m, 1.3m, 1.5m, 1.7m, 1.9m, 2.1 m, 2.3m, 2.5m, 2.7m and 2.9m;
step 54: controlling the pouring channel and the vibrating rod to move outwards along the axial direction of the steel hoop 9 at the rate of L meters/min until the length of 1/x of the total length of the steel hoop 9 is moved; in an embodiment, x is 3;
step 55: stopping vibrating rod, waiting for set time until the cement poured reaches the age;
step 56: judging whether pouring of all the spaces in the steel hoop 9 is finished or not; if not, returning to the step 53; otherwise, pouring the inclined column is finished, and the step is finished.
In the step 6, after the construction of the diagonal columns is completed, in some other embodiments, a beam is further cast between adjacent diagonal columns, so as to improve the structural strength of the whole building.
In the implementation process, the stability in the inclined column pouring process is realized by building an outer formwork 10 at the periphery of the steel hoop 9 in the step 4; in step 5, through the pouring method in the embodiment, the concrete can be conveyed to the appointed position inside the longer steel hoop 9, and the gap generated inside the inclined column pouring process can be effectively reduced.
The above description is only one specific example of the present invention and does not constitute any limitation on the present invention. It will be apparent to those skilled in the art that various modifications and changes in form and details may be made without departing from the principles and construction of the invention, but these modifications and changes based on the inventive concept are still within the scope of the appended claims.
Claims (9)
1. The concrete diagonal column formwork structure is characterized by comprising a scaffold, a tie rod, an inner side frame, a steel hoop and an outer formwork; the inner side frame is of a traditional vertical positioning upright post and a vertical wall structure, and the positioning upright post is arranged close to the vertical wall; the scaffold is arranged around the outer formwork, and one side of the scaffold is also close to the vertical wall; the outer formwork is directly connected with the scaffold; the outer formwork is also connected with the wall body through a first tie rod; the steel hoop is arranged on the inner side of the outer supporting die and is connected with the positioning upright post through a second tie rod;
the scaffold is a plate buckle supporting frame and comprises a cross bar supporting frame, a square supporting frame and an inclined strut; wherein the method comprises the steps of
The cross rod support frame is arranged on one side of the outer formwork, which is close to the ground, and comprises a first vertical rod and a second cross rod, wherein the first vertical rod is vertically arranged, and the second cross rod is transversely arranged; the diagonal bracing frame is arranged on the left side surface and the right side surface which are connected with one side, close to the bottom surface, of the outer supporting die and comprises a second vertical rod, a second transverse rod and a diagonal rod, wherein the second vertical rod is vertically arranged, and the second transverse rod is transversely arranged; the square support frame is arranged on one side of the inclined support frame, which is far away from the outer support die, and comprises a third transverse rod which is transversely arranged and a third vertical rod which is vertically arranged.
2. A concrete diagonal column formwork structure according to claim 1, wherein the first uprights of the cross bar support frame are arranged in two rows, wherein the first uprights in each row are in the same plane and parallel to each other; the first cross rods are arranged between the adjacent first vertical rods, and comprise the adjacent first vertical rods in the same row and two corresponding first vertical rods in different rows, at least one first cross rod is arranged between the adjacent two first vertical rods, and the first cross rods between any two first vertical rods are parallel to each other; the inclined support frames are arranged on the left side and the right side of the outer support die symmetrically; the second vertical rods in the inclined strut of one side are parallel to each other and are vertically arranged, a plurality of second cross rods which are parallel to each other and are horizontally arranged are arranged between the adjacent second vertical rods, wherein an inclined rod is arranged inside a quadrangle formed by any one of the two adjacent second cross rods and the two adjacent second vertical rods, the inclined rod is arranged along any diagonal line in the quadrangle, and the diagonal directions of the quadrangles corresponding to the inclined rods in the inclined strut of the same side are consistent.
3. The concrete diagonal column formwork structure of claim 1, wherein the second tie rod is an internal wire steel bar tie rod, wherein the diameter of the second tie rod is in the range of 10-50mm.
4. A concrete diagonal column formwork structure according to claim 1, wherein the positioning columns are square columns; the positioning upright post is connected with the second tie rod through I-steel, wherein the I-steel is attached to the side surface of the positioning upright post and is positioned on one side of the positioning upright post far away from the inclined post; the length of the I-steel is greater than the width of the side surface of the positioning upright post, which is clung to the I-steel; two ends of the I-steel are provided with hole sites for connecting the second tie rod, and the distance between the two hole sites is consistent with the diameter of the steel anchor ear.
5. A method of constructing a concrete diagonal column, the method being based on a formwork structure as claimed in any one of claims 1 to 4, comprising the steps of:
step 1: engineering preparation, including drawing preparation, verification and preparation of materials, tools, sites and personnel;
step 2: building a scaffold and completing the construction of a concrete structure of the inner side frame; in the construction process of the inner side frame, a tie rod connecting part is required to be pre-buried at a set position in a concrete structure of the inner side frame and used for connecting the tie rod;
step 3: waiting for the concrete in the inner side frame to reach the age, and entering the next step;
step 4: manufacturing a steel hoop according to drawing parameters, and building an outer formwork; a tie rod is also connected between the outer formwork and the inner side frame in the process of building the outer formwork;
step 5: pouring the steel anchor ear in the outer supporting mould for a plurality of times;
step 6: and after the concrete poured in the steel anchor ear reaches the age, removing the tie rod, the steel anchor ear and the scaffold, and completing the construction of the inclined column.
6. The method for constructing a concrete diagonal column according to claim 5, wherein the height of the steel hoop set in the step 4 is in the range of-0.1 m to 21.5m, and the inclination angle is 72 °.
7. The method for constructing a concrete diagonal column according to claim 5, wherein in step 5, in the process of pouring the steel anchor ear, the poured concrete is conveyed to a position of the steel anchor ear close to the ground through the pouring channel to start pouring; wherein the pouring channel is a hard PVC pipe or a soft rubber pipe with set length and pipe diameter; and a vibrating rod is also arranged in the pouring channel.
8. The method for constructing a concrete diagonal column according to claim 7, wherein the pouring of the inner side of the steel hoop comprises the following steps:
step 51: placing the pouring channel into the steel hoop to set depth; wherein the set depth is a depth range of 0.1 m-0.5 m from the bottom of the steel hoop;
step 52: feeding the vibrating rod into a pouring channel, and controlling the vibrating rod to be positioned in the pouring channel and to be 0.1 m-0.3 m away from the bottom outlet of the pouring channel;
step 53: pouring cement into a pouring channel and starting a vibrating rod, wherein the pouring speed is kept at S.Lm3/min, S represents the radial sectional area of a steel hoop, the unit is m2, and the value range of L is 0.05 m-3 m;
step 54: controlling the pouring channel and the vibrating rod to move outwards along the axial direction of the steel hoop at the rate of L meters/min until the length of 1/x of the total length of the steel hoop is moved;
step 55: stopping vibrating rod, waiting for set time until the cement poured reaches the age;
step 56: judging whether pouring of all spaces in the steel hoop is finished or not; if not, returning to the step 53; otherwise, pouring the inclined column is finished, and the step is finished.
9. The method according to claim 5, wherein in step 6, after the construction of the diagonal columns is completed, a beam is further cast between adjacent diagonal columns.
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