CN212715910U - Ultra-high-strength steel column concrete construction system - Google Patents

Abstract

The utility model discloses a super high strength steel column concrete construction system aims at solving the concrete that faces in the construction system of the concrete of strength steel column super high and the technical problem of easy segregation when the quality is poor and concrete placement. It includes support system, template system and concrete system, the support system includes the scaffold frame, the template system includes the channel-section steel, the concrete system includes vibrator and the pipe that is used for pouring into the concrete, the pipe can reciprocate. The scaffold is erected around the ultra-high strength steel column as a support system, so that the operation is simple, the material consumption of the steel pipe is less, and personnel are saved; the template system utilizes channel steel to reinforce the template, the operation is simple, the stress of the template is uniform, and the impression quality of concrete is improved; the concrete system can shorten the construction period by utilizing the conduit for pouring, has small side pressure on the template, and can solve the problems of incompact concrete and honeycomb and the problem of concrete segregation.

Description

Ultra-high-strength steel column concrete construction system

Technical Field

The utility model relates to a construction technical field, concretely relates to super high strength steel column concrete construction system.

Background

The steel column concrete structure is characterized in that concrete is filled in a steel pipe, two materials with different properties are combined into an integral composite structure, and the strength and the rigidity of the steel column are enhanced by pouring the concrete into the steel column and tamping the concrete. The steel column concrete structure has the advantages of high bearing capacity, good ductility, superior earthquake resistance, convenient construction, greatly shortened construction period, fire resistance and fire resistance of the steel column, superior corrosion resistance to the steel structure and the like, and is widely applied at present.

To the concrete construction system that strength steel column height is super high, face a lot of problems in the work progress, for example, the operation is too complicated, and the concrete is seen the quality poor, and easy segregation etc. when concrete placement.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an ultra-high strength steel column concrete construction system to solve the concrete that faces in the construction system of the concrete of strength steel column superelevation and feel the quality poor and concrete placement's easy technical problem of educing when.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the design is an ultra-high strength steel column concrete construction system, including support system, template system and concrete system, the support system includes the scaffold frame, the template system includes the channel-section steel, the concrete system includes vibrator and the pipe that is used for pouring concrete, the pipe can reciprocate, the pipe is formed by the concatenation of the pipe branch of dismantling of difference, pipe branch end connection has the funnel.

Preferably, the scaffolding is arranged around the steel column.

Preferably, the bottom of the scaffold is provided with a steel bar, and two sides of the scaffold are provided with steel pipes.

Preferably, battens are arranged at the external corners of the formwork system, and the battens and the channel steel are fastened through fixing pieces.

Preferably, the fastener is a double-screw cap screw.

Preferably, the steel columns are densely distributed, and I-shaped steel is arranged between the steel columns.

Compared with the prior art, the utility model has the beneficial technical effects of:

1. the scaffold is erected around the ultra-high strength steel column as a support system, so that the operation is simple, the material consumption of the steel pipe is less, and personnel are saved; the template system utilizes channel steel to reinforce the template, the operation is simple, the stress of the template is uniform, and the impression quality of concrete is improved; the concrete system can shorten the construction period by utilizing the conduit for pouring, has small side pressure on the template, and can solve the problems of incompact concrete and honeycomb and the problem of concrete segregation.

2. The utility model discloses the reinforcing bar is intensive and the middle steel column that has intensive anchor nail, and strength steel column concrete outward appearance surface is smooth level and smooth, do not have the bubble, and lines rule is clear, and the axis size is accurate, reaches clear water concrete's effect.

3. The utility model discloses compare with traditional construction process, the work progress is simplified, and labour cost and mechanical expense have obtained better saving simultaneously, are once only pour moreover, have avoided the secondary formwork and have pour, have practiced thrift the energy, accord with the green construction policy advocated by the current country.

Drawings

Fig. 1 is a schematic view of a scaffold according to embodiment 1 of the present invention.

Fig. 2 is a schematic view of the template reinforcement system according to embodiment 1 of the present invention.

Fig. 3 is a schematic view of an external corner of the template reinforcement system according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of the funnel according to embodiment 1 of the present invention.

Figure 5 is a schematic view of the catheter of figure 1 according to the present invention.

Fig. 6 is a schematic view of the arrangement of vibration points in embodiment 1 of the present invention.

In the figure, 1 is a steel pipe, 2 is a steel bar, 3 is a square timber, 4 is a channel steel, 5 is a screw rod, 6 is an additional timber, 7 is a fixing bolt, 8 is a funnel, 9 is a conduit branch, 10 is a vibration point, 11 is an I-steel, and 12 is a template.

Detailed Description

The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way.

Example 1: an ultra-high strength steel column concrete construction system, as shown in fig. 1-6, comprises a support system, a formwork system and a concrete system. The scaffold is erected around the ultrahigh-strength steel column to serve as a supporting system, as shown in fig. 1, the bottom shearing resistance of the scaffold is considered when the scaffold is erected, and the vertical bearing capacity is considered, so that the scaffold is erected around the column to improve stability and counteract the shearing force in each direction. The scaffold not only needs to provide lateral support for the column, but also needs to meet the working surface of worker construction and serve as an equipment platform. Every limit of scaffold frame both sides has 1 shore of twice steel pipe, and every limit of bottom is equipped with 2 anchors of reinforcing bar and goes into cushion cap in order to consolidate the template end opening, reinforcing bar interval 200 mm. The stability of the erected scaffold can meet the requirements of column side shearing force and construction of a construction operation platform, and the standard requirements are met. The support system is simple to operate, the material consumption of the steel pipe is low, and personnel are saved. The template system utilizes channel-section steel 4 to consolidate the template, as shown in fig. 2, the channel-section steel adopts 16# channel-section steel, in order to improve the straightness that hangs down of the column angle of strength steel column, guarantee that the seam department does not leak thick liquid, flitch 3 is add to external corner department, 3 inseparable ranges of square timber, screw 5 is used for fastening square timber 3 and channel-section steel 4, consolidate the template system, screw 4 is double-screw cap screw, because the height of strength steel column is high, the concrete requires once only to pour to accomplish, the lateral pressure that the template received is big, adopt this template reinforcement system, the operation is simple, the template atress is even, improve the concrete impression quality. The verticality deviation of the template in the template reinforcing system is 3mm, the maximum deviation of the section size is 4mm, and the standard requirement is met.

The concrete system is poured by using a guide pipe, two slide pipes and vibrators with different lengths are inserted into a front column supported by a template, the guide pipe has relative freedom of moving up and down, the falling height of the concrete is controlled by using the length difference of the guide pipe, the slump of the concrete is 20-22cm, and the concrete is vibrated while lifting the pipe in the pouring process until the top of the column. The construction period can be shortened by utilizing the pipe for pouring, the side pressure to the template is small, and the problems of incompact concrete and honeycomb and the segregation of concrete can be solved. According to the construction height of the ultra-high-strength steel column, the first pouring height is 10.55m, in order to ensure that the falling height of concrete is not more than 2m, the length of each guide pipe is 9m, the guide pipe branches 9 are all standard lengths, the design is shown in figure 5, the length specifications are different specifications such as 1m and 2m, the guide pipe branches with different specifications and lengths can be connected together during use, and the end parts of the guide pipe branches 9 are connected with funnels 8 for pouring, as shown in figure 4. Along with the rising of concrete face height, in order to guarantee concrete whereabouts height, pour the in-process and carry out pipe promotion segmentation dismantlement, consider the interior reinforcing bar space of post, design pipe diameter is 100 mm. The slump of concrete mainly refers to the plasticizing performance and pumpability of concrete, and factors influencing the slump of concrete mainly include grading change, water content, weighing deviation of a weighing apparatus, the dosage of additives, cement temperature and the like which are easy to neglect. Slump refers to the workability of concrete, and particularly to the normal operation of construction, wherein the workability includes the water retention, the fluidity and the cohesiveness of the concrete. The ultrahigh-strength steel columns are densely distributed and provided with I-shaped steel 11, so that the vibrator and the guide pipe must be embedded well before the formwork 12 is supported. The arrangement of the vibration points 10 is shown in fig. 6.

The use of the plug-in vibrating rod is to insert quickly and pull slowly, the insertion points need to be uniformly arranged and move point by point in sequence, omission is avoided, and uniform compaction is achieved. The moving distance is not more than 1.5 times (generally 30-40 cm) of the vibrating radius. When the upper layer is vibrated, the next layer is inserted by 5-10 cm so as to firmly combine the concrete of the upper layer and the concrete of the lower layer. During vibration, the vibrator touches the steel bars and the templates as little as possible, a conduit with the length of 16 meters and the diameter of 100 is inserted into each column before the templates are supported, the upper opening of the conduit is connected with a funnel, and a truck crane puts concrete into the funnel so that the concrete flows into the bottom of the column along the conduit. The height of each concrete pouring is controlled to be about 500mm, and the pouring time of each layer of concrete is controlled to be about half an hour. When pouring is carried out to the bottom of the 2m pipe at the lowest end, the chute is lifted upwards for 2m by using a crane, and pouring is continued after a section of guide pipe is removed. When pouring, vibrating and lifting the pipe are carried out simultaneously. The volume of the hopper used in concrete pouring is a fixed value, and the lifting height can be calculated according to the cross-sectional area of the column.

The appearance surface of the concrete of the steel column in the embodiment 1 is smooth and flat, no bubble exists, the lines are regular and clear, the axis dimension is accurate, and the effect of the clear water concrete is achieved. The results of the statistical data obtained by actual measurement on site are shown in the following table 1.

Table 1 schematic diagram of the acceptability of each inspection item of the construction system in example 1

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Compared with the traditional construction system, the construction system of the embodiment 1 is simplified, meanwhile, the labor cost and the mechanical cost are better saved, and the benefit analysis is shown in the following table 2. And embodiment 1 is once only pour, has avoided secondary formwork and has pour, has practiced thrift the energy, accords with the green construction policy advocated with current country.

Table 2 schematic diagram of construction system benefit in example 1

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The present invention has been described in detail with reference to the accompanying drawings and embodiments, but those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention to form a plurality of specific embodiments, which are the common variation ranges of the present invention and will not be described in detail herein.

Claims (6)

1. The utility model provides an ultra-high strength steel column concrete construction system, its characterized in that, includes support system, template system and concrete system, the support system includes the scaffold frame, the template system includes the channel-section steel, the concrete system includes vibrator and the pipe that is used for pouring into the concrete, the pipe can reciprocate, the pipe is formed by the concatenation of the pipe branch of dismantling of difference, pipe branch end connection has the funnel.

2. The ultra-high strength steel column concrete construction system according to claim 1, wherein the scaffolding is disposed around the steel column.

3. The ultra-high strength steel column concrete construction system according to claim 1, wherein reinforcing bars are provided at the bottom of the scaffold, and steel pipes are provided at both sides of the scaffold.

4. The ultra-high strength steel column concrete construction system according to claim 1, wherein battens are provided at external corners of the formwork system, and the battens and the channel steel are fastened by fasteners.

5. The ultra-high strength steel column concrete construction system according to claim 4, wherein the fixing member is a double-cap screw.

6. The ultra-high strength steel column concrete construction system according to claim 1, wherein the steel columns are densely distributed, and I-shaped steel is disposed between the steel columns.

Images