CN102619286B - Connecting joint of steel pipe concrete column and profile steel concrete beam - Google Patents

Abstract

The invention discloses a connection node between a steel pipe concrete column and a steel concrete beam. A pair of large and small ring plates with different diameters are arranged at the intersection of the steel pipe in the column of the steel pipe concrete column and the flange of the steel concrete beam. The horizontal and vertical positions of the slabs are staggered, the small ring slab is welded to the steel beam flange in the steel concrete beam, the large ring slab is welded to the inner longitudinal reinforcement of the steel concrete beam, and steel pipes are arranged between the ring slabs to connect the large, The small ring plate is welded and connected as a whole, and the steel pipe in the column of the concrete filled steel pipe column and the steel pipe connecting the two ring plates are connected by vertical stiffeners to form a whole. The advantages of the connection node between the steel pipe concrete column and the steel concrete beam of the present invention are: 1, there is no need to open a large number of steel holes in the steel pipe in the steel pipe concrete column; Construction pouring of concrete.

Description

A connection node between steel pipe concrete column and steel concrete beam

technical field

The invention relates to a building structure node form, in particular to a beam-column node in a steel-concrete composite structure.

Background technique

At present, the joint method between the steel concrete column (the inner steel pipe is steel pipe) and the steel concrete beam is as follows: the steel pipe in the steel pipe concrete column is provided with a ring plate at the upper flange of the steel beam, the flange of the steel beam in the steel beam is welded to the ring plate, and the steel bar in the steel beam Through section steel, partly bent around the steel pipe. The construction unit of this kind of joint form must open holes for the steel pipes to pass through the steel bars in the processing plant or on site. The opening of the steel pipe caused damage to the column section, and the construction period was long.

Contents of the invention

The purpose of the present invention is to provide a new type of connection node between concrete filled steel pipe column and steel concrete beam. The main features of this node are that it can save the construction workload of the site and the processing plant, shorten the construction period, reduce labor costs and reduce the cost.

The present invention is realized through the following technical scheme: a connection node between a steel pipe concrete column and a steel concrete beam, which is characterized in that a pair of large, The small ring plate, the two ring plates are horizontally and vertically staggered, the small ring plate is welded to the steel beam flange in the steel concrete beam, the large ring plate is welded to the internal longitudinal reinforcement of the steel concrete beam, and the ring Steel pipes are arranged between the plates to weld the large and small ring plates into a whole, and the steel pipes in the column of the CFST column and the steel pipes connecting the two ring plates are connected by vertical stiffeners to form a whole.

Further, in order to ensure that the concrete is poured and compacted, the small ring plate is provided with concrete pouring holes.

The positive effects of the present invention are as follows: 1. Shorten the on-site construction period. The original traditional joint method needs to open a large number of holes on the round steel pipe. If the hole is constructed in a processing plant, the actual position of the on-site reinforcement is often different from the theory, and it is often impossible to ensure that it is consistent with the site requirements; if the hole is constructed on site, the hole It is very difficult because: 1) It is difficult to locate the drilling holes on the arc surface, 2) Two through holes need to be opened for each steel bar, and the two holes need to be aligned, which makes the on-site construction difficult. The present invention does not require holes to be drilled on the steel pipe. The construction period can be shortened. 2. The safety performance is good, avoiding the damage of the steel concrete column section caused by the opening of the steel pipe, the longitudinal steel bar of the beam is welded with the reinforced ring plate, the construction is simple, the welding is safe and reliable, and the longitudinal steel bar of the beam is guaranteed to be anchored. 3. The economic effect of the structure is obvious, the steel ring plate and the peripheral steel pipe are increased, the length of the steel bar is reduced, and the total material cost does not increase greatly. A large number of steel pipe column drilling and steel bar penetration work are reduced. It saves a lot of construction work on site and in the processing plant, shortens the construction period, reduces labor costs, and thus reduces the cost.

Description of drawings

Fig. 1 is the schematic diagram of the connection node of steel pipe concrete column and steel concrete beam of the present invention;

Fig. 2 is the sectional view of A-A part in Fig. 1;

Fig. 3 is the sectional view of B-B part in Fig. 1;

The labels and names in the figure are: 1. Steel pipe in column 2. Small ring plate 3. Large ring plate 4. Steel pipe 5. Stiffener 6. Steel beam flange 7. Longitudinal reinforcement inside beam 8. Grouting hole 9. Steel concrete beam 10 , Steel tube concrete columns.

Detailed ways

Embodiments of the present invention are described in detail below in conjunction with accompanying drawings:

A connection node between a steel pipe concrete column and a steel concrete beam. A pair of large and small ring plates 3 and 2 with different diameters are arranged at the intersection of the inner steel pipe 1 of the steel pipe concrete column 10 and the steel beam flange 6 in the steel concrete beam 9. The two ring plates 2 and 3 are horizontally and vertically staggered. In order to avoid damage to the section of the steel concrete column 10 caused by opening a large number of steel holes on the steel pipe 1 in the steel pipe concrete column 10, the small ring plate 2 and the steel The steel beam flange 6 in the concrete beam 9 is welded, the large ring plate 3 is welded with the beam internal longitudinal reinforcement 7 in the steel concrete beam 9, and a steel pipe 4 is arranged between the ring plates 2 and 3 to connect the large and small ring plates 3 , 2 welded as a whole, for further reinforcement, the steel pipe 1 in the column of the concrete filled steel pipe column 10 and the steel pipe 4 connecting the two ring plates 2, 3 are connected to form a whole through vertical stiffeners 5, so that the whole node, The steel pipe and the ring plate form a stressed whole. In order to ensure that the pouring of concrete is compact, there are concrete pouring holes 8 on the small ring plate 2 .

Below is the making and installation mode of the present invention:

The specific implementation of the present invention should be completed by building steel structure and civil engineering construction and installation units with corresponding construction qualifications. The specific implementation is mainly divided into two stages: factory processing and on-site installation.

The steel pipe 1 and the small ring plate 2 in the steel tube concrete column 10 are welded in the processing plant, and the grouting hole 8 is opened on the small ring plate 2 at the same time, and the welding of the large ring plate 3 and the steel pipe 4 is also completed in the processing plant. Install the steel pipe 1 in the steel pipe concrete column 10 and the shaped steel beam in the steel concrete beam 9 on site, complete the welding of the small ring plate 2 on the steel pipe 1 in the column and the flange 6 of the steel beam on site, and then connect the steel pipe 1 with the big ring plate 3 The steel pipe 4 welded as a whole is welded with the small ring plate 2 on the steel pipe 1 in the column, and then the vertical stiffening plate 5 between the steel pipe 1 in the column and the steel pipe 4 connecting the two ring plates 2 and 3 is welded, and finally the The inner longitudinal reinforcement 7 of the steel concrete beam 9 is welded with the large ring plate 3, and the concrete poured on site is vibrated and compacted.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and the performance or use is the same, then it should be regarded as belonging to the present invention by the submitted claims The scope of protection determined by the book.

Claims (2)

1. the connecting node of a kind of steel core concrete column and girder with rolled steel section en cased in concrete, it is characterised in that：The steel pipe large and small ring flat-plate different from edge of a wing intersection a pair of diameters of setting of girder with rolled steel section en cased in concrete in the post of steel core concrete column, two pieces of ring flat-plate levels, upper-lower positions stagger, the small ring flat-plate is welded with the steel beam flange in girder with rolled steel section en cased in concrete, muscle welding is indulged in the beam of the big ring flat-plate and girder with rolled steel section en cased in concrete, steel pipe is provided between the ring flat-plate welding of large and small ring flat-plate is linked as in entirety, the post of the steel core concrete column to connect to form entirety by vertical ribbed stiffener between steel pipe and the steel pipe for connecting two ring flat-plates.

2. the connecting node of a kind of steel core concrete column according to claim 1 and girder with rolled steel section en cased in concrete, it is characterised in that：Concrete casting hole is provided with the small ring flat-plate.

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