阅读说明：本技术 一种多肢柱的柱脚节点施工方法 (Construction method for column base joint of multi-limb column ) 是由 季泽华 方力 彭阳亮 李明 徐子涵 于 2021-10-13 设计创作，主要内容包括：本发明涉及土建柱脚成型施工方法的技术领域,具体涉及一种多肢柱的柱脚节点施工方法,施工步骤如下：柱体包括垂直柱和倾斜柱,垂直柱底部节点与倾斜柱底部重合,形成多柱节点；根据水准点进行放样并用全站仪放出多个倾斜柱的安装坐标点和中心,安装钢结构埋件并用型钢固定,根据预埋件位置绑扎基础钢筋；倾斜柱上多个模板环设一周并采用钢带抱箍的形式进行加固,钢带抱箍沿倾斜柱每间隔一定距离布置一道；用混凝土浇筑倾斜柱前,先在倾斜柱底部浇筑一定厚度的减石子水泥砂浆,减石子水泥砂浆与混凝土配合比相同；浇筑时,下灰高度不大于500mm。上述的施工方法,可以让钢结构施工更加简单方便,保证了钢结构的准确性,方便后续钢柱的安装。(The invention relates to the technical field of civil construction column base forming construction methods, in particular to a column base node construction method of a multi-limb column, which comprises the following construction steps: the column body comprises a vertical column and an inclined column, and a node at the bottom of the vertical column is superposed with the bottom of the inclined column to form a multi-column node; lofting according to the leveling points, releasing installation coordinate points and centers of a plurality of inclined columns by using a total station, installing steel structure embedded parts and fixing by using profile steel, and binding foundation steel bars according to the positions of the embedded parts; a plurality of templates on the inclined column are annularly arranged for a circle and are reinforced in a steel belt hoop mode, and the steel belt hoops are arranged along the inclined column at intervals; before pouring the inclined column by using concrete, pouring stone-reducing cement mortar with a certain thickness at the bottom of the inclined column, wherein the mixing ratio of the stone-reducing cement mortar to the concrete is the same; when pouring, the height of the discharged ash is not more than 500 mm. By the construction method, the construction of the steel structure is simpler and more convenient, the accuracy of the steel structure is ensured, and the subsequent steel column is convenient to install.)

1. A construction method of a column base joint of a multi-limb column is characterized by comprising the following construction steps:

positioning a column body, wherein the column body comprises a vertical column (1) and an inclined column (2), and a bottom node of the vertical column (1) is superposed with the bottom of the inclined column (2) to form a multi-column node; lofting is conducted according to the leveling points, installation coordinate points and centers of the multiple inclined columns (2) are released through a total station, steel structure embedded parts are installed and fixed through profile steel, and foundation steel bars are bound according to the positions of the steel structure embedded parts;

reinforcing the templates, wherein a plurality of templates on the inclined column (2) are annularly arranged for a circle and are reinforced in a steel belt anchor ear mode, and the steel belt anchor ears are arranged along the inclined column (2) at intervals;

pouring concrete, namely pouring stone-reducing cement mortar with a certain thickness at the bottom of the inclined column (2) before pouring the inclined column (2) by using the concrete, wherein the mixing ratio of the stone-reducing cement mortar to the concrete is the same; when pouring, the height of the discharged ash is not more than 500 mm.

2. The construction method of the column base joint of the multi-limb column according to claim 1, wherein the inclined column (2) adopts a circular inclined column, and the irregular part of the bottom of the inclined column is reinforced by a combination mode of a steel belt hoop, a counter-pull screw rod and a batten wedge, so that the position of the template is ensured not to deviate.

3. The method of constructing a column base joint of a multi-limb column according to claim 2, wherein the irregularities of the bottom of the inclined leg are reinforced by a combination of steel band hoops, counter-pulling screws and batten wedges, and are arranged at intervals along the inclined column (2).

4. The column base joint construction method of a multi-limb column according to claim 1, characterized in that a wood square back-ridge is evenly arranged on the periphery of the inclined column (2).

5. The construction method of the column base joint of the multi-limb column according to claim 4, wherein the top end of the inclined column (2) is connected with a steel column (3), and the steel column (3) and the inclined column (2) are fixedly connected by adopting an anchor bolt.

6. The method of constructing a column base joint of a multi-limb column according to claim 1, wherein the pouring is performed by using a chute, and the ash falling height and the pouring speed are strictly controlled.

7. The construction method of a column base joint of a multi-limb column according to claim 1, wherein the center lines of a plurality of inclined columns (2) and the center line of a vertical column (1) meet at a point.

8. The method for constructing a column base joint of a multi-limb column as claimed in claim 1, wherein in the step of pouring concrete, a construction team makes a corresponding scale, and the scale is illuminated by a strong light flashlight at night, so that the ash falling height is effectively controlled.

9. The method for constructing a column base joint of a multi-limb column according to claim 1, wherein in the step of pouring concrete, the concrete is poured by using a chute, and the height of the lower ash and the pouring speed are strictly controlled.

Technical Field

The invention relates to the technical field of civil construction column base forming construction methods, in particular to a column base node construction method of a multi-limb column.

Background

In a conventional civil engineering column base node construction system, a single column or a single column is mainly used, and little or no relation is provided for large V-shaped limb columns, three limb columns, variable-angle multi-limb columns and variable-section multi-limb columns, so that great difficulty exists in construction.

And many buildings need to be supported by V-shaped columns or multi-limb profiled columns, but the construction of column base nodes of the V-shaped columns and other profiled columns is difficult to realize.

Disclosure of Invention

The invention aims to provide a construction method of a column base joint of a multi-limb column, which aims to solve the technical problem that the multi-limb column in the prior art is difficult to construct.

In order to achieve the purpose, the technical scheme adopted by the invention is to provide a construction method of a column base joint of a multi-limb column, which comprises the following construction steps:

positioning a column, wherein the column comprises a vertical column and an inclined column, and a node at the bottom of the vertical column is superposed with the bottom of the inclined column to form a multi-column node; lofting according to the leveling points, releasing installation coordinate points and centers of a plurality of inclined columns by using a total station, installing steel structure embedded parts and fixing by using profile steel, and binding foundation steel bars according to the positions of the steel structure embedded parts;

reinforcing the templates, wherein a plurality of templates on the inclined column are annularly arranged for a circle and are reinforced in a steel belt hoop mode, and the steel belt hoops are arranged along the inclined column at intervals;

pouring concrete, namely pouring stone-reducing cement mortar with a certain thickness at the bottom of the inclined column before pouring the inclined column by using the concrete, wherein the mixing ratio of the stone-reducing cement mortar to the concrete is the same; when pouring, the height of the discharged ash is not more than 500 mm.

Furthermore, the inclined column is a circular inclined column, and the irregular part of the bottom of the inclined foot is reinforced by a combination mode of steel belt hooping, oppositely-pulling screw rods and batten wedging, so that the position of the template is ensured not to deviate.

Furthermore, the irregular parts of the bottom of the inclined foot are reinforced by adopting a combination mode of steel belt hooping, oppositely pulling screw rods and batten wedging, and are arranged at intervals along the inclined column.

Furthermore, the periphery of the inclined column is uniformly provided with the wood square back corrugated plate.

Furthermore, the top end of the inclined column is connected with a steel column, and the steel column is fixedly connected with the inclined column through an anchor bolt.

Further, when pouring, concrete is poured by using the chute, and the ash discharging height and the pouring speed are strictly controlled.

Further, the center lines of the plurality of inclined pillars meet the center line of the vertical pillar at a point.

Furthermore, in the concrete pouring step, a construction team makes a corresponding scale, and the scale is illuminated by a strong light flashlight at night, so that the ash discharge height is effectively controlled.

Further, in the concrete pouring step, concrete is poured by using the chute, and the ash discharge height and the pouring speed are strictly controlled.

The invention has the beneficial effects that:

1. by adopting the construction method, the construction of the steel structure is simpler and more convenient, the accuracy of the steel structure is ensured, and the subsequent steel column is convenient to install. Meanwhile, the limb column formed by the construction method has exquisite process and attractive appearance. And the pouring amount of concrete is saved, the economic benefit is high, and the cost is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of an overall structure of a multi-support column according to an embodiment of the present invention.

Description of reference numerals:

1. a vertical column; 2. an inclined column; 3. a steel column; 4. and (5) column piers.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The construction method of the column base joint of the multi-limb column provided by the embodiment of the invention comprises the following construction steps:

positioning a column body, wherein the column body comprises a vertical column 1 and an inclined column 2, and a bottom node of the vertical column 1 is superposed with the bottom of the inclined column 2 to form a multi-column node; lofting is conducted according to the leveling points, installation coordinate points and centers of the plurality of inclined columns 2 are released through a total station, steel structure embedded parts are installed and fixed through section steel, and foundation steel bars are bound according to the positions of the steel structure embedded parts;

reinforcing the templates, wherein a plurality of template rings are arranged on the upper part of the inclined column 2 for one circle and are reinforced in a steel belt hoop mode, and the steel belt hoops are arranged along the inclined column 2 at intervals;

pouring concrete, namely pouring stone-reducing cement mortar with a certain thickness at the bottom of the inclined column 2 before pouring the inclined column 2 by using the concrete, wherein the mixing ratio of the stone-reducing cement mortar to the concrete is the same; when pouring, the height of the discharged ash is not more than 500 mm. After pouring and forming, removing redundant templates, and performing surface treatment on the poured vertical column 1 and the poured inclined column 2 according to later-stage requirements.

Specifically, three limb columns are arranged on a concrete column pier 4, one is a vertical column 1, the other two are inclined columns 2, and the vertical column 1 is integrally made of a concrete column and is arranged into a cylindrical shape. The two inclined columns 2 are respectively inclined at the same angle as the vertical column 1. The bottom of the inclined column 2 is made of concrete, the top end of the inclined column is connected with a steel column 3, and the steel column 3 is fixedly connected with the inclined column 2 through anchor bolts. The bottom of the inclined column 2 is arranged in a circular truncated cone shape, and the diameter of the bottom is reduced to the diameter of the top. By adopting the construction method, the construction of the steel structure is simpler and more convenient, the accuracy of the steel structure is ensured, and the subsequent installation of the steel column 3 is facilitated. Meanwhile, the limb column formed by the construction method has exquisite process and attractive appearance. And the pouring amount of concrete is saved, the economic benefit is high, and the cost is low.

In the step of cylinder positioning, a steel structure measurement engineer performs lofting according to a leveling point, and uses a total station to play out coordinate points and centers of the two inclined columns 2, and the center lines of the two inclined columns 2 and the center line of the vertical column 1 are converged at one point. And installing steel structure embedded parts and fixing the embedded parts by using profile steel, and binding reinforcing steel bars by a civil engineering engineer according to the positions of the steel structure embedded parts. BIM engineers carry out three-dimensional modeling to leaning column 2, and lofting is carried out to the reinforcing bar, gives more audio-visual three-dimensional effect picture.

In the template reinforcing step, the inclined column 2 is a circular inclined column, the influence of large factors of stress on the lower portion of the template in the concrete pouring process is considered, the template is reinforced in a steel belt hoop mode, a plurality of templates on the inclined column 2 are annularly arranged for a circle and reinforced in the steel belt hoop mode, and the steel belt hoops are arranged along the inclined column 2 at intervals of 20 cm. The irregular positions of the bottoms of the column bases are reinforced by adopting a steel belt anchor ear, a counter-pull screw and a batten wedging mode, so that the positions of the circular wood templates are ensured not to deviate, and the stability of the inclined columns 2 is controlled. The irregular positions at the bottom are arranged at intervals of 20cm by adopting steel belt hoops, counter-pulling screw rods and batten wedging. In order to ensure the rigidity of the template, 40 multiplied by 90 battens and back corrugated boards are arranged along the periphery of the inclined column 2, and the battens are spaced by 5 cm. The vertical column 1 is directly reinforced by adopting a steel belt hoop, and the steel belt hoops are arranged along the vertical column 1 at intervals of 20 cm.

In the concrete pouring step, before the inclined column 2 is poured by concrete, firstly, stone-reducing cement mortar with the thickness of 50cm is poured at the bottom of the inclined column 2, and the mixing ratio of the stone-reducing cement mortar to the concrete is the same; when pouring, the height of the discharged ash is not more than 500mm at each time, so that the problem of overlarge impact of the poured concrete is avoided. The vertical column 1 can be poured in a common pouring mode, and the ash discharging height is not more than 500mm each time. Construction work teams do corresponding scales, and the scales are illuminated by a strong light flashlight at night, so that the ash discharge height is effectively controlled. When pouring, the chute is used for pouring concrete, and the ash discharging height and the pouring speed are strictly controlled.

In the above embodiment, the construction method of two inclinations is taken as an example, and when the number of the inclined columns 2 is three, four or more, the construction method can still be used.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.