CN201343825Y - Prefabricated ordinary concrete pipe and restricted type recycled concrete core combined column - Google Patents

Abstract

The utility model relates to a column, in particular to a prefabricated ordinary concrete pipe and cast-in-situ recycled concrete core combined column which is formed by superimposing a prefabricated ordinary concrete hollow column on a cast-in-situ recycled concrete core. In accordance with the actual stress status, the ordinary concrete hollow column is equipped with a longitudinal stress bar and a rectangular hoop reinforcement. The process of manufacturing the prefabricated ordinary concrete hollow column includes, supporting a mould on the inner and the outer surfaces of the hollow column, pouring ordinary concrete, maintenance, and removing the mould. During construction, since the prefabricated ordinary concrete pipe is taken as a template, all that is needed is to pour cast-in-situ recycled concrete and perform maintenance. The prefabricated ordinary concrete pipe can restrict the recycled concrete core therein, so that the load-bearing capacity and the ductility of the recycled concrete can be effectively improved. Therefore, with the bearing capacity and the ductility of the combined column retained, the utility model effectively makes the use of the recycled concrete, thereby achieving double effect, namely environmental protection as well as practicality.

Description

Prefabricated common concrete pipe restricted type regeneration concrete core composite column

Technical field

The utility model is a kind of post, the cast-in-place regeneration concrete core composite column of particularly a kind of prefabricated common concrete pipe.

Background technology

Along with the continuous development of urbanization process, environmental problem highlights day by day, and sustainable development is brought into schedule.Utilizing Limited resources effectively and reasonably is the only way of realizing sustainable development.

China is the resources consumption big country of a shortage of resources, extensive operation, and economic growth more and more is subjected to the constraint of resource and environment.Being on the increase of the building waste that produces along with builing industry recycled discarded concrete, with the discarded concrete resource, is processed into regeneration aggregate and then is mixed with regeneration concrete, not only can realize recycling, and can solve the component environment problem.The application of building structure center pillar is very extensive, therefore, from economizing on resources, changes the extensive operation mode of production, walks the angle of sustainable development path and considers that the research that regeneration concrete is applied to post just has very important realistic meaning.

The domestic and international mechanical property requirements that can satisfy structure basically to the material property that studies show that regeneration concrete and the mechanical property of regeneration concrete, but since the adhesive property of regeneration concrete and reinforcing bar a little less than, therefore utilize the application of whole regeneration concretes making posts fewer.

The utility model content

The utility model proposes a kind of prefabricated common concrete pipe restricted type regeneration concrete core composite column system, this combined column improves the application of regeneration concrete in post under the condition of bearing capacity that ensures post and ductility, realize the regeneration of the energy.

To achieve these goals, the utility model has been taked following technical scheme.This combined column comprises common concrete hollow column and is fixed on the interior recycled concrete core of common concrete hollow column.

The preparation method of prefabricated common concrete pipe restricted type regeneration concrete core composite column, this method may further comprise the steps:

1) steel mesh reinforcement in the colligation prefabricating common concrete hollow column, described steel mesh reinforcement comprises longitudinal stress reinforcing bar and stirrup;

2) begin to pour into a mould ordinary concrete after inside and outside template of steel mesh reinforcement, steel mesh reinforcement is a protective layer thickness apart from the distance of exterior sheathing;

3) common concrete hollow column is made into the hollow column of smooth outer surface, inner surface plucking;

4) form removal after the intensity of common concrete hollow column reaches requirement;

5) with the prefabricating common concrete hollow column as template, cast-in-place regeneration concrete in it;

6) maintenance reaches intensity, and ordinary concrete and regeneration concrete are connected as a single entity, and are prefabricated common concrete pipe restricted type regeneration concrete core composite column.

The utility model utilizes the prefabricated tubular outer casing of ordinary concrete, the inner recycled concrete core of filling, not only can well solve regeneration concrete and the more weak problem of reinforcing bar adhesive property, and strengthened constraint to recycled concrete core with the principle of similar concrete filled steel tube, improved the bearing capacity and the ductility of regeneration concrete post.

Description of drawings

Fig. 1 is the schematic cross-section of the utility model prefabricated common concrete pipe restricted type regeneration concrete core composite column;

Fig. 2 is the schematic cross-section of the utility model prefabricated common concrete pipe restricted type regeneration concrete core composite column precast concrete hollow column;

Fig. 3 is the schematic cross-section behind the utility model prefabricated common concrete pipe restricted type regeneration concrete core composite column cast regeneration concrete;

Among the figure: 1, common concrete hollow column, 2, ordinary concrete, 3, stirrup, 4, the longitudinal stress reinforcing bar, 5, recycled concrete core.

The specific embodiment

Below in conjunction with Fig. 1～Fig. 3 the utility model embodiment is described in further detail:

Present embodiment is formed by prefabricating common concrete hollow column 1 and cast-in-place recycled concrete core 5 superpositions.Recycled concrete core 5 is fixed in the common concrete hollow column 1.Wherein, as shown in Figure 2, obtain behind the cast-in-place ordinary concrete of steel mesh reinforcement that common concrete hollow column is made up of longitudinal stress reinforcing bar 4 and stirrup 3.During construction, prefabricating common concrete hollow column 1 is prefabricated common concrete pipe restricted type regeneration concrete core composite column after the engineering completion, as shown in Figure 3 as the template of cast-in-place recycled concrete core 5.

The preparation method of prefabricated common concrete pipe restricted type regeneration concrete core composite column, its order is as follows:

1) steel mesh reinforcement of colligation prefabricating common concrete hollow column, this steel mesh reinforcement comprise longitudinal stress reinforcing bar 4 and the colligation stirrup 3 in longitudinal stress reinforcing bar 4 outsides, and wherein stirrup adopts rectangle hoop, to play effect of contraction;

2) begin cast after making the inner and outer template of common concrete hollow column, steel mesh reinforcement is a protective layer thickness apart from the distance of exterior sheathing; The minimum place of common concrete hollow column thickness should be greater than 50mm;

3) common concrete hollow column will be made into smooth outer surface, inner surface plucking;

4) form removal after Strength of Common reaches requirement;

5) prefabricated common concrete pipe concentrated be transported to the building site, during construction, with prefabricated common concrete pipe as template, cast-in-place regeneration concrete;

6) maintenance reaches intensity, and ordinary concrete and regeneration concrete are connected as a single entity, and are prefabricated common concrete pipe restricted type regeneration concrete core composite column.

Claims (1)

1, prefabricated common concrete pipe restricted type regeneration concrete core composite column is characterized in that: comprise common concrete hollow column and be cast in the interior recycled concrete core of common concrete hollow column.

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