CN111456325A

CN111456325A - Modular composite column and construction method thereof

Info

Publication number: CN111456325A
Application number: CN202010208525.XA
Authority: CN
Inventors: 邹胜斌; 李莉; 陈仪清
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-07-28

Abstract

The invention discloses a modular combined column and a construction method thereof, wherein the combined column comprises a plurality of vertically stacked modules and a plurality of vertically through-module steel bars; the module is vertically provided with a plurality of steel bar holes through which the honeycomb-shaped steel bars pass; the two ends of the steel bar are fixed on a building, and the steel bar is arranged in a sectional manner and comprises a plurality of sections of steel bars and a plurality of connecting pieces; and filling the filler in the holes of the reinforcing steel bars. The construction method adopts a method that the section bars and the modules are constructed upwards step by taking the height of the section bars as one level. The invention disperses the large-size reinforced concrete columns into small modules, thus being convenient for large-scale production; the product is modularized, has small self weight and light structure; the transportation is convenient, and the hoisting is simple; dry construction is adopted on site, so that pollution and dust are little; the construction is simple, the modular products are assembled to form the column, the technical requirements on constructors are low, and the construction efficiency is high; the problems of low strength, soft top phenomenon, honeycombs, holes, exposed ribs, pitted surfaces and the like of the column body caused by material proportion, unevenness and the like are solved.

Description

Modular composite column and construction method thereof

Technical Field

The invention relates to a modular combination column and a construction method thereof, belonging to the technical field of assembly type buildings.

Background

Existing reinforced concrete columns are columns made of reinforced concrete materials. The bearing member is the most basic bearing member in various engineering structures such as houses, bridges, hydraulic engineering and the like, and is commonly used as a strut, a pier, a foundation column, a tower and a compression bar of a truss. Reinforced concrete columns are one of the ultimate load-bearing elements in modern building construction. With the improvement of the earthquake-resistant requirement of modern houses and the popularization and application of new materials of wall bodies, the traditional residential brick-concrete structure has been replaced by a frame structure in the past, and the vertical bearing member concrete column is very important for the house structure.

The existing reinforced concrete column mainly has the following defects:

1. the strength is low: the concrete strength is low, the homogeneity is poor and is lower than that of concrete beams and plates of the same grade, and the main reason is that the mix proportion is randomly changed, the water-cement ratio is high, and the slump is high; stirring is not sufficient and uniform; vibration is not uniform; early form removal, improper maintenance and loose early dewatering surface.

2. The "soft top" phenomenon: the concrete column has the phenomenon of soft top, the mortar at the top of the column is more, the stones are less, and the surface is loose and has cracks.

3. Honeycomb and hole: the honeycomb and the holes of the concrete are mainly generated due to incorrect mixing ratio; generally, the method is layered pouring, concrete is separated, the gap of the template is not blocked, or the template is not firmly supported, and the template is displaced and leaks slurry during vibration.

4. Exposing ribs: the concrete is exposed, the main reason is that when the concrete is poured and vibrated, cushion blocks of the steel bars are displaced, or the cushion blocks are too few and even leaked, and the steel bars are tightly attached to the template, so that the steel bars are exposed after the template is removed; the reinforced concrete structure has a small section, the deviation of the steel bars is too dense, large stones are clamped on the steel bars, cement paste cannot fill the periphery of the steel bars, and exposed steel bars are generated; because the mixing proportion of the concrete is not accurate, the pouring method is not proper, and the concrete is separated; slurry is lacking in the pouring and tamping part or the slurry is seriously leaked from the template, so that ribs are exposed; the template is not wet enough, the surface of the concrete is dehydrated too much, or the concrete lacks edges and falls corners to cause exposed ribs when the template is removed.

5. And (3) dough kneading: the concrete is pitted, and edges and corners are missing. The main reasons for this are the rough surface of the template or the unclean surface; before the concrete is poured, the wood board is not wet or is not wet enough; the maintenance is not good; the concrete is not compacted by vibration; the mold is removed too early, and the edges and corners are knocked off due to impact or poor protection of the mold.

6. Self-weight. The concrete has low tensile strength and is easy to crack. The labor and the template are wasted, and the period is long. Construction is affected by seasons.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a modular combined column and a construction method thereof, and aims to solve the problems that the existing reinforced concrete column is low in strength, has a soft top phenomenon, has honeycombs and holes, exposes ribs, has pitted surfaces on the surface, has heavy self-weight, is long in construction period, is influenced by construction seasons and the like.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a modular combined column comprises a plurality of vertically stacked column modules and a plurality of steel bars vertically penetrating through the stacked column modules; the column module is vertically provided with a plurality of steel bar holes through which the honeycomb-shaped steel bars pass; the two ends of the steel bar are fixedly connected to a building or a structure, the steel bar is arranged in a sectional mode, and the steel bar arranged in the sectional mode comprises a plurality of sections of steel bars and a plurality of connecting pieces; the connecting pieces connect the sections of the reinforcing steel bars to form reinforcing steel bars; the bottom and the top of each cylinder module are bonded by coating adhesive, and the reinforcing steel bar holes are filled with filling agents for fastening the cylinder modules and the reinforcing steel bars into a whole.

Through with concrete steel column cylinder modularization, accessible mill prefabrication, the module is standard module, because adopt the concrete of equal material to make in the manufacturing process, can solve current cast in situ concrete steel column stirring inhomogeneous etc. and cause intensity on the low side, "soft top" phenomenon, honeycomb and hole scheduling problem. According to the modular combined column, the reinforcing steel bars are arranged in the reinforcing steel bar holes and assembled on site, and the reinforcing steel bar holes are arranged inside the modules, so that the problem of exposed reinforcing steel bars is solved; the column body is miniaturized and divided by a factory according to a standard prefabricated module, so that a wood board is not used as a mold according to the existing mode, and the problem of pitted surface is solved. Meanwhile, the miniaturized cylinder module is convenient to transport and only needs to be assembled on site, time and labor are saved, labor is saved, and the installation period is shortened. And the prefabricated module is a cylinder module which is normally used when the module is out of the field, and the construction is not influenced by seasons. Simultaneously through carrying out the sectional type setting with the reinforcing bar, can build module and section muscle simultaneously, increase simultaneously, improved the efficiency of building.

Preferably, the two ends of the section rib are respectively provided with an external thread, and the two ends of the connecting piece are respectively provided with an internal thread matched with the external thread of the section rib. The connection can be directly carried out on site through the threaded arrangement, and time and labor are saved. The connection between the section bars can also be welded or connected in other fixed modes under the condition of ensuring the strength of the section bars.

Furthermore, the connecting piece is a through pipe which is internally filled with internal threads. The through pipe can be a long nut with internal threads, the long nut is connected with the end part of the section rib which is not connected, and then is connected with the end part of the section rib which is fixed, so that time and labor are saved.

Preferably, section muscle one end and connecting piece one end fixed connection, the section muscle other end is provided with the external screw thread, the connecting piece other end be provided with section muscle external screw thread assorted internal thread. As above, also can be with the direct tip fixed connection with the section muscle of one end of connecting piece, during the use, only need with adjacent section muscle between once connect can, more optimize.

Preferably, the adjacent cylinder modules are mutually bonded by adopting adhesive, so that the strength of the whole cylinder can be enhanced.

Preferably, the upper end and the lower end of the column module are respectively provided with a tongue-and-groove staggered structure corresponding to each other. Through setting up till mouthful dislocation structure, also can strengthen holistic intensity, and tensile strength is better, has better antagonism to horizontal shear force.

Furthermore, a plurality of cross rod jacks for inserting and climbing cross rods are arranged on the outer wall of the column body. Through setting up the horizontal pole jack, can insert the horizontal pole in the jack, the insertion of horizontal pole is along with the cylinder risees step by step and sets up, and constructor can use the construction top of climbing horizontal pole to cylinder, convenient construction.

Furthermore, a plurality of the cross rod insertion holes are spirally arranged on the column body. Through the arrangement of the spiral cross rod jacks, constructors can construct on the column body being constructed without dead angles.

Further, the module cross-section is, but not limited to, circular, rectangular, or polygonal.

The invention also relates to a construction method of the modular combination column, which comprises the following steps:

s1, constructing a foundation at the bottom of the column, and reserving a steel bar joint corresponding to the steel bar hole of the column module on the foundation;

s2, the section bars and the column modules are mutually matched and built upwards step by taking the height of the section bars as one level, wherein the bottom ends of a plurality of section bars at the bottom layer are fixedly connected with the steel bar connectors, all the column modules and the steel bar holes thereof are aligned up and down, the vertical section bars are connected through connectors in the vertically communicated steel bar holes, and when the vertically adjacent section bars are connected, the top of the lower section bar extends out of the steel bar hole and is connected with the bottom of the upper section bar through the connectors;

s3, after the column modules are stacked, filling filler into the reinforcing steel bar holes at the top of the column to fix the reinforcing steel bars and the column modules into a whole;

and S4, connecting the top of the column with a building or a structure.

Through the height that uses the section muscle upwards to build step by step as the one-level, only need assemble on the spot can, simplify traditional bundle reinforcing bar net, steps such as surrounding die, concrete of vibrating, shortened construction cycle greatly, improved work efficiency. Fill in the reinforcing bar hole after piling up and fill the filler, can guarantee that all reinforcing bars and cylinder module are firm as an organic whole, improved the bulk strength.

Furthermore, a convex through hole is vertically arranged in the center of the module, the through hole is composed of an upper through hole and a lower through hole and is coaxial, and the diameter of the cross section of the upper through hole is smaller than that of the cross section of the lower through hole; in the step S2, the two adjacent stages of section ribs and the column modules are built, and after the column modules are vertically aligned and stacked, the vertically adjacent section ribs are connected with each other; when the section muscle is connected, use the jack to pass the vertical setting of through-hole under in the through-hole, the tip and the afterbody of the telescopic link of jack articulate respectively has backup pad and bottom suspension fagging, and the jack during operation goes up backup pad and bottom suspension fagging and supports respectively on the mouth edge of adjacent last through-hole.

Through set up "protruding" shape through-hole and jack use of mutually supporting on the module, can pile up the module earlier, then the linkage segment muscle, this kind of mode is compared and is piled up the module after the linkage segment muscle earlier, can save the step that section muscle and reinforcing bar hole align each other, only need align the back with upper and lower cylinder module earlier, jack up the top module through the jack, form a space between module and module, reinforcing bar hole has been stretched out to the section muscle below, so can pass through the connecting piece with upper and lower adjacent section muscle in this space and connect. The working efficiency is improved.

Furthermore, a plurality of cross rod jacks for inserting and climbing cross rods are arranged on the outer wall of the column body; in the process of building the column body upwards step by step, the climbing cross rod is synchronously inserted into the cross rod insertion hole. Through the cooperation of horizontal pole jack and climbing horizontal pole, at the construction in-process, upwards constantly insert the climbing horizontal pole along with increasing of cylinder step by step, the appurtenance of cylinder about forming still can tie up the safety rope between cylinder and constructor simultaneously, constructor can be under construction at the construction top of cylinder along the climbing horizontal pole.

Compared with the prior art, the modular combined stair has the advantages that:

1) the large-size reinforced concrete columns are dispersed into small modules, so that large-scale production and processing are facilitated;

2) the product is modularized, has small self weight and light structure;

3) the transportation is convenient, and the hoisting is simple;

4) dry construction is adopted on site, so that pollution and dust are little;

5) the construction is simple, the modular products are assembled to form the column, the technical requirements on constructors are low, and the construction efficiency is high;

6) the problems of low strength, soft top phenomenon, honeycombs, holes, exposed ribs, pitted surfaces and the like of the column body caused by material proportion, unevenness and the like are solved.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

FIG. 1 is a perspective view of a column module according to one embodiment;

FIG. 2 is a schematic structural diagram of a column module according to an embodiment;

FIG. 3 is a schematic structural view of a section of a rib and a connecting member according to an embodiment;

FIG. 4 is a schematic structural view of a section of a rib and a connector of the embodiment integrally arranged;

FIG. 5 is a perspective view of a concrete foundation constructed by a pillar according to an embodiment;

FIG. 6 is a schematic diagram of a bottom module of a column according to an embodiment;

FIG. 7 is a schematic view of the construction of a column at a high position according to an embodiment;

FIG. 8 is a schematic structural view of a section of rib connection according to an embodiment;

figure 9 is a perspective view of a completed column of one embodiment in cooperation with a climbing rail;

FIG. 10 is a diagram of a pathway of the climbing rail arrangement of FIG. 9;

in the figure: 1 is a cylinder module; 2 is a steel bar, 2-1 is a section bar, and 2-2 is a connecting piece; 3 is a reinforcing steel bar hole; 4 as a basis; 5 is a jack; 6 is a climbing cross bar; 7 is a steel bar joint; 8 is an upper through hole; 9 is a lower through hole; 10 is a jack; 11 is a telescopic rod; 12 is an upper supporting plate; and 13 is a lower support plate.

Detailed Description

The invention will now be further elucidated with reference to the following non-limiting embodiment in which the drawing is combined. It should be understood that these descriptions are only illustrative and are not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example one

As shown in fig. 1, 2 and 3, a modular combined column includes a plurality of vertically stacked column modules 1 and a plurality of reinforcing bars 2 vertically penetrating the stacked column modules 1; the module 1 is vertically provided with a plurality of steel bar holes 3 through which the honeycomb-shaped steel bars 2 pass; two ends of the steel bar 2 are fixedly connected to a building or a structure, the steel bar 2 is arranged in a sectional mode, and the steel bar 2 arranged in the sectional mode comprises a plurality of sections of steel bars 2-1 and a plurality of connecting pieces 2-2; a plurality of connecting pieces 2-2 connect a plurality of sections of reinforcements 2-1 to form a reinforcement 2; and a filling agent for fastening the plurality of column modules 1 and the plurality of steel bars 2 into a whole is filled in the steel bar holes 3.

As shown in fig. 3, external threads are respectively arranged at two ends of the section rib 2-1, and internal threads matched with the external threads of the section rib 2-1 are respectively arranged at two ends of the connecting piece 2-2. The connecting piece 2-2 is a through pipe, and internal threads are fully distributed in the through pipe. As shown in fig. 1, the modules 1 are adhered to each other. The outer wall of the column body is provided with a plurality of cross rod jacks 5 which are used for inserting and climbing cross rods 6.

The section bar 2-1 and the connecting piece 2-2 of the embodiment can also be arranged as shown in fig. 4, one end of the section bar 2-1 is fixedly connected with one end of the connecting piece 2-2, the other end of the section bar 2-1 is provided with an external thread, and the other end of the connecting piece 2-2 is provided with an internal thread matched with the external thread of the section bar 2-1.

As shown in fig. 1 and 2, a through hole in a convex shape is vertically arranged in the center of the module 1, the through hole is composed of an upper through hole 8 and a lower through hole 9, the through hole is coaxial, and the diameter of the cross section of the upper through hole 8 is smaller than that of the cross section of the lower through hole 9.

The column module 1 of the present embodiment is manufactured by the following steps: the concrete is mixed according to the formula proportion, is put into a mould for heat preservation, vibration and molding, and can leave a factory after being inspected to be qualified.

The modular composite column construction method of an embodiment includes the steps of:

s1, as shown in fig. 5, constructing a foundation 4 at the bottom of the column, and reserving a reinforcement bar connector 7 on the foundation 4 corresponding to the reinforcement hole 3 of the column module 1;

s2, as shown in fig. 6, 7 and 8, the section bars 2-1 and the column modules 1 are mutually matched and built up step by step with the height of the section bars 2-1 as one level, wherein the bottom ends of a plurality of section bars 2-1 at the bottom layer are fixedly connected with the bar connector 7, all the column modules 1 and the bar holes 3 thereof are aligned up and down, the vertical section bars 2-1 are connected in the bar holes 3 which are vertically communicated through the connectors 2-2, and when the vertically adjacent section bars 2-1 are connected, the top of the lower section bar 2-1 extends out of the bar hole 3 and is connected with the bottom of the upper section bar 2-1 through the connectors 2-2;

the two adjacent stages of section ribs 2-1 are built with the cylinder module 1, the cylinder module 1 is aligned and stacked up and down, and then the vertically adjacent section ribs 2-1 are connected with each other; when the section ribs 2-1 are connected, a jack 10 is used for penetrating the upper through hole 8 and vertically arranged in the lower through hole 9, the end part and the tail part of a telescopic rod 11 of the jack 10 are respectively hinged with an upper supporting plate 12 and a lower supporting plate 13, and the upper supporting plate 12 and the lower supporting plate 13 respectively abut against the edges of the adjacent upper through holes 8 when the jack 10 works.

S3, after the column module 1 is stacked, filling filler into the reinforcing steel bar hole 3 at the top of the column to fix the reinforcing steel bar 2 and the column module 1 into a whole;

s4, as shown in fig. 9, the top of the column may be connected to a building or structure.

As shown in fig. 9 and 10, a plurality of cross bar jacks 5 for inserting climbing cross bars 6 are arranged on the outer wall of the column body; in the process of building the column body upwards step by step, the climbing cross rod 6 is synchronously inserted into the cross rod insertion hole 5. And a plurality of the cross rod jacks 5 are spirally arranged on the column body. Through the arrangement of the spiral cross rod insertion holes 5, constructors can construct on the column body under construction without dead angles.

The cross section of the column body constructed in the embodiment is circular, the diameter of the column body is 0.4m, the height of the column body is 3.7m, 216 reinforcing steel bars are used, 3 persons are required to spend 1 day, and the finally constructed column is free of a soft top phenomenon, honeycombs and holes, exposed ribs and pitted surfaces. Wherein, the reinforcing steel bar holes 3 are filled with high-strength concrete filling agent, and the strength of the whole column body is equivalent to that of the concrete of the prior reinforcing steel bar 2. The existing steel bar 2 concrete column with a square pouring cross section, a side length of 0.4m and a height of 3.7m is used as a control group, and the comparison is as follows:

it can be seen from the above table that the modular composite column of the present invention has various performances superior to those of the existing reinforced concrete column 2.

The above examples are to be construed as merely illustrative and not limitative of the remainder of the disclosure. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.

Claims

1. The modularized combined column is characterized by comprising a plurality of vertically stacked column modules and a plurality of steel bars vertically penetrating through the stacked column modules; the column module is vertically provided with a plurality of steel bar holes through which the honeycomb-shaped steel bars pass; the two ends of the steel bar are fixedly connected to a building or a structure, the steel bar is arranged in a sectional mode, and the steel bar arranged in the sectional mode comprises a plurality of sections of steel bars and a plurality of connecting pieces; the connecting pieces connect the sections of the reinforcing steel bars to form reinforcing steel bars; the bottom and the top of each cylinder module are bonded by coating adhesive, and the reinforcing steel bar holes are filled with filling agents for fastening the cylinder modules and the reinforcing steel bars into a whole.

2. The modular combination column as claimed in claim 1, wherein the section bar has external threads at both ends thereof, and the connecting member has internal threads at both ends thereof, which are engaged with the external threads of the section bar and are filled with internal threads.

3. The modular composite column as claimed in claim 1, wherein one end of the section bar is fixedly connected with one end of the connecting member, the other end of the section bar is provided with an external thread, and the other end of the connecting member is provided with an internal thread matching with the external thread of the section bar.

4. The modular composite column of claim 1, wherein adjacent column modules are bonded to each other with an adhesive.

5. The modular combination column according to any one of claims 1 to 5, wherein the outer wall of the column body is provided with a plurality of cross bar insertion holes for inserting the climbing cross bar.

6. The modular composite column of claim 5, wherein a plurality of said cross-bar receptacles are helically disposed on the column.

7. The modular composite column of any of claims 1-4, wherein the cylindrical module cross-section comprises a circle, a rectangle, or a polygon.

8. The method of constructing a modular composite column of claim 7, comprising the steps of:

and S4, connecting the top of the column with a building or a structure.

9. The building method according to claim 8, wherein a through hole of a "convex" shape is vertically provided at the center of the module, the through hole is composed of an upper through hole and a lower through hole and is coaxial, and the cross-sectional diameter of the upper through hole is smaller than that of the lower through hole;

in the step S2, the two adjacent stages of section ribs and the column modules are built, and after the column modules are vertically aligned and stacked, the vertically adjacent section ribs are connected with each other; when the section muscle is connected, use the jack to pass the vertical setting of through-hole under in the through-hole, the tip and the afterbody of the telescopic link of jack articulate respectively has backup pad and bottom suspension fagging, and the jack during operation goes up backup pad and bottom suspension fagging and supports respectively on the mouth edge of adjacent last through-hole.

10. The construction method according to claim 8 or 9, wherein a plurality of cross bar insertion holes for inserting climbing cross bars are arranged on the outer wall of the column body; in the process of building the column body upwards step by step, the climbing cross rod is synchronously inserted into the cross rod insertion hole.