CN204551755U - A kind of Staggered-truss System post and truss hinged joint - Google Patents

Abstract

The utility model discloses a staggered truss system column and truss hinge joint, wherein the steel pipe concrete column and the chord are hingedly connected by a separate sleeve. The purpose of this utility model is to avoid on-site welding, only bolt connection is carried out on site, all components of the structure can be mass-produced in the factory in advance, spliced and hoisted on site; it has huge industrialization potential; the degree of assembly is high, the construction speed is fast, and the construction period can be shortened , Improve labor productivity, less on-site welding operations, construction is less affected by weather and seasons, most of the work is carried out in the factory, improving the working conditions of workers.

Description

A staggered truss system column and truss hinge joint

technical field

The utility model relates to a node connection construction mode, in particular to a hinge connection node of a staggered truss system column and a truss chord.

Background technique

The staggered truss structure is a new type of structural system developed under the funding of the US Steel Corporation in the mid-20th century. The basic components of the structural system are columns, planar steel trusses and floor slabs. The columns are arranged on the periphery of the house without columns in the middle; the height of the trusses is the same as the floor height and the length is the same as the width of the house. The houses are arranged in vertical partitions, and the adjacent columns along the height of the houses are arranged in a staggered way on the upper and lower floors. This structure has a reasonable way of force transmission and can resist large lateral loads. The stiffness and bearing capacity of each floor vary evenly, and the yield strength coefficients of each floor are roughly equal, avoiding weak floors at sudden changes in stiffness or bearing capacity, and structural plasticity. The development process is long, the energy dissipation is large, and it has good seismic performance. Due to the arrangement of truss partitions, it can provide a column-free large space with twice the column spacing. Therefore, on the premise of meeting the building's function, the column spacing can be reduced, and the floor span can be reduced, which has high economic benefits. Compared with ordinary steel In the frame structure system, the steel consumption of the staggered truss structure can generally be reduced by about 30%.

The commonly used staggered truss system node hinge structure is the column diaphragm connection. When the truss chord is under a large force, the steel tube concrete column wall at the node will be pulled up, causing the gusset plate to break in the heat-affected zone of the weld. In addition, due to the existence of internal partitions, the pouring of concrete is very difficult.

Contents of the invention

Aiming at the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a staggered truss system column and truss hinge joint, which has a high degree of assembly and fast construction speed, can shorten the construction period, and improve labor productivity. There are few welding operations on site, and the construction is less affected by weather and seasons. Most of the work is carried out in the factory, and it also makes the concrete pouring construction relatively easy.

In order to realize above-mentioned task, the utility model adopts following technical scheme to realize:

A staggered truss system column and truss hinged node, characterized in that the node includes an upper chord node and a lower chord node; the upper chord node includes a first casing, a first connecting plate, and a gusset plate;

The first casing is fixedly set on the column of the truss system;

The first connecting plate is fixedly connected to the side wall of the casing;

The first connection plate and the gusset plate are surface-fitted and hingedly connected;

The gusset plate is fixedly connected with the truss.

The utility model also has the following technical characteristics:

The lower chord node includes a second casing, a second connecting plate, and a truss lower chord;

The second casing is fixedly set on the column of the truss system;

The second connecting plate is fixedly connected to the side wall of the casing;

The second connecting plate is hingedly connected to the lower chord of the truss;

The fixed connection method is welding;

The said fixing method is welding;

The described assembly connection method is bolt connection.

The hinge joint structure provided by the utility model has good practicability, and is suitable for building structures with narrow and long planes such as middle and high-rise residences, hotels, hospitals, and office buildings. Its force transmission is clear, the structure is simple, and the components required for the structure can be fabricated in the factory in advance, and only need to go directly to the site for bolt connection, which can greatly reduce the construction period and improve work efficiency.

Description of drawings

Figure 1 is a structural schematic diagram of a staggered truss system column and truss hinge joints.

Fig. 2 is a top view structural schematic diagram of part A-A.

Fig. 3 is a left view structural diagram of part B-B.

Fig. 4 is a top view structural schematic diagram of part C-C.

Fig. 5 is a left view structural diagram of part D-D.

Among them, the meaning of each label is: 1-casing; 2-concrete steel tube column; 3-connecting plate; 4-gusset plate, 5-top chord; 6-slanting bar; 7-vertical bar, 8-bottom chord.

Below in conjunction with accompanying drawing and embodiment the concrete content of the present utility model is described in further detail.

Detailed ways

The truss system column and truss in the utility model include several parts such as a steel tube concrete column, a casing, a joint plate, a connecting plate and a truss.

In the utility model, a casing is welded outside the steel pipe concrete column, and the casing can resist relatively large loads, and can replace the internal partition welded inside the steel pipe concrete column in the prior art. On the one hand, welding outside the CFST column can greatly reduce the difficulty of welding, especially for concrete steel column tubes with small inner diameters, the effect is more prominent; on the other hand, this setting can reduce the difficulty of concrete pouring and construction The poured concrete is more uniform.

In addition, the upper chord node of the utility model is welded with a connecting plate on the side wall of the casing. The gusset plate is not only connected with the bolts of the connecting plate, but also welded with the truss. One end of the rod is fixed on the gusset plate. The lower chord node welds a connecting plate on the side wall of the casing, and the connecting plate is connected with the lower chord of the truss with bolts.

The upper chord node of the utility model changes the traditional connection mode of directly welding the truss to the steel tube concrete column, and indirectly fixes the truss to one end of the steel tube concrete column through the high-strength bolt connection between the connection plate and the joint plate. This setting can avoid on-site welding and can greatly reduce the on-site construction strength. Before going to the construction site, all components such as the welding part with the connecting plate and the welding part with the gusset plate can be prefabricated in the factory. During construction, only the bolts are used on site for splicing and hoisting. This setting has a high degree of assembly and a fast construction speed. Fast, can shorten the construction period, improve efficiency, and has a good application prospect.

During on-site construction, the node construction method in the utility model can be reused according to the actual required number of nodes.

Example:

The specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solutions of the present application all fall within the scope of protection of the present invention.

According to the above technical solution, as shown in Figure 1, a staggered truss system column and truss hinge joint, the joint includes an upper chord node and a lower chord node.

The upper chord node structure includes a vertically placed concrete-filled steel tube column 2, the first sleeve 1-1 is fixed outside the steel tube concrete column 2, the first sleeve 1-1 is welded to the first connecting plate 3-1, the gusset plate 4 and the truss welding. The gusset plate can fix the truss, and its connection with the truss is similar to that in the prior art. Specifically, the upper chord 5, the oblique bar 6 and the vertical bar 7 form a right-angled triangle, and the joints where the bars meet all pass through the gusset plate Connection, wherein, one end of the upper chord 5 and one end of the inclined rod 6 are welded to the gusset plate 4 .

The lower chord node structure includes a vertically placed concrete-filled steel tube column 2, and the second sleeve 1-2 is fixed outside the steel tube concrete column 2, and the second sleeve 1-2 is welded to the second connecting plate 3-2, and the second connecting plate 3 -2 can be directly hingedly connected with the truss bottom chord 8.

The above-mentioned steel pipe concrete column part welded with the connection plate 3 and the truss part welded with the connection plate 4 can be made in advance in the factory. After the construction is completed, it has a high degree of assembly, which can shorten the construction period of the construction site, improve labor efficiency, and has good application value.

Claims (5)

1. a staggered truss system column and truss hinged node, is characterized in that, this node comprises upper chord node and lower chord node; Described upper chord node comprises first casing (1-1), first connecting plate (3-1 ), gusset plate (4); The first casing (1-1) is fixedly set on the truss system column (2); The first connecting plate (3-1) is fixedly connected to the side wall of the first casing (1-1); The first connecting plate (3-1) and the gusset plate (4) are face-to-face and hingedly connected; The gusset plate (4) is fixedly connected with the truss. 2. A kind of staggered truss system column and truss hinged joint as claimed in claim 1, characterized in that, said lower chord joint comprises a second casing (1-2), a second connecting plate (3-2), Truss lower chord (8); The second casing (1-2) is fixedly set on the truss system column (2); The second connection plate (3-2) is fixedly connected to the side wall of the second casing (1-2); The second connecting plate (3-2) is hingedly connected to the lower chord (8) of the truss. 3. The articulated joint according to claim 1 or 2, characterized in that the fixed connection method is welding. 4. The articulated joint according to claim 1 or 2, characterized in that, said fixing fitting method is welding. 5. The articulated joint according to claim 1 or 2, characterized in that, the assembly connection method is bolt connection.