WO2019178905A1

WO2019178905A1 - Assembling structure for assembled steel structure building

Info

Publication number: WO2019178905A1
Application number: PCT/CN2018/082754
Authority: WO
Inventors: 柏林; 柏正成
Original assignee: 柏林
Priority date: 2018-03-23
Filing date: 2018-04-12
Publication date: 2019-09-26
Also published as: CN108222262A

Abstract

An assembled steel structure building, for solving the problems of poor torque resistance, low welding spot assurance factor, and poor integral building rigidity of existing steel structure buildings mainly based on I steel. In order to achieve the purpose, the following technical solution is presented: an assembling structure for the assembled steel structure building: a crossbeam (6), an auxiliary beam (4), and a column of the assembled steel structure building body are all H steel; the crossbeam (6) supports the auxiliary beam (4); the column is mounted at the intersection of the crossbeam (6) and the auxiliary beam (4); a corbel bracket piece for connecting the crossbeam (6), the auxiliary beam (4), and the column is provided at the intersection; the corbel bracket piece is divided into a tenon piece and a rivet piece which are distributed around the column and are respectively provided with an engaging bump (31) and an engaging groove (21) engaged together; the adjacent tenon pieces and rivet pieces are engaged together; and the tenon pieces and rivet pieces are detachably mounted on the column.

Description

Assembly structure of fabricated steel structure building

Technical field

The invention relates to the technical field of steel structures for building and building, in particular to an assembly structure of a steel structure building.

Background technique

Modern buildings can be mainly divided into the following four categories: one, brick and wood structure; two, brick-concrete structure; three, steel-concrete structure; four, steel structure. Steel structure is a structure mainly composed of steel materials, one of the main types of building structures. The steel structure is mainly composed of steel beams, steel columns, steel bridges and the like made of steel and steel plates. Welding joints, bolts or rivets are usually used between the components or components. In the process of steel structure connection, the main role of the steel beam and the column is the main body of the entire steel structure frame building.

The designer found that in the existing steel structure buildings, the "column hanging beam" method of the combination of the I-beam, the insert welding, the countertop mounting and the countertop welding is often used. The advantage of the I-shaped steel and the connection method is that the cross-section width of the I-beam is narrow, the height is high, the wall is thin, the weight per meter is light, the static pressure is strong, and the amount of steel per square is small, so the current production Most of the workshops have adopted this steel structure design. However, the middle and high-rise buildings are rarely designed with all-steel structure. Some of the concrete buildings are equipped with I-beam materials combined with the building. The reason is that the middle and high-rise buildings are most in need of earthquake resistance and wind resistance, that is, they require anti-torque. strong ability. However, the anti-torque capability of the I-beam is low and does not meet the design requirements of high-rise buildings.

To this end, we have proposed an H-shaped steel with a height and width equal to the wall thickness of the same specification, and the cross-sectional area is seven times that of the I-beam. Because the high and wide equal torque resistance is ten times that of the I-beam, and the top beam and column are used, the four-beam eight-column and the bucket arch are connected. The rivet structure has no welding in the middle and is fixed by bolts. The beam and the lath are all through the beam and the plate, and the steel-shaped assembled steel structure.

Summary of the invention

The object of the present invention is to provide a prefabricated steel structure building to solve the above-mentioned background art, and the existing steel structure building mainly composed of I-beam has poor torque resistance, low welding point guarantee coefficient and overall building rigidity. Problems such as poor performance to achieve the purpose of replacing conventional reinforced concrete structures with fabricated steel structures. In order to achieve the above object, the present invention proposes the following technical solutions.

The assembly structure of the assembled steel structure building, the large beam, the auxiliary beam and the column of the assembly steel structure main building adopt H-shaped steel, the large beam supports the auxiliary beam, and the column is installed at the intersection of the big beam and the auxiliary beam;

The cross-position is equipped with a bucket arch for connecting the girders, the auxiliary beams and the columns. The bucket arches are divided into shackles and rivets. The shackles and rivets are distributed around the pillars, and the rafters and rivets are respectively arranged for interlocking. The fastening protrusions and the buckle grooves are combined, the adjacent jaws and the rivet members are fastened together, and the shackles and the rivets are mounted on the column by detachable connection.

According to the assembly structure of the fabricated steel structure building, the boring member and the rivet member are mounted on the column by bolt connection, and a plurality of screw holes are arranged at the bottom of the U-shaped groove at the end of the column and at the end of the column end, and the bolt passes through The shackle, the rivet and the screw hole are connected to the column and the column.

According to the assembly structure of the fabricated steel structure building, the body of the boring member and the rivet member is L-shaped, and the vertical panel of the enamel member is provided with a vertical fastening protrusion, and the vertical panel of the rivet member is provided with a vertical buckle groove. The bottom of the horizontal plate of the boring piece and the rivet piece is provided with a U-shaped groove, and the horizontal plate of the boring piece and the rivet piece is provided with a plurality of screw holes.

According to the assembly structure of the fabricated steel structure building, the ribs and the rivets have reinforcing ribs on the inner side of the right angle, and the ribs have symmetrically distributed screw holes on both sides of the ribs.

According to the assembly structure of the prefabricated steel structure building, the girders and the sub beams are installed in a cross shape, the upper column is above the intersection of the girders and the sub beams, the lower column is located below the intersection of the girders and the sub beams, and the upper and lower columns are distributed around the upper and lower columns. There are pieces and rivets.

According to the assembly structure of the fabricated steel structure building, the shackles and the rivets are provided with mounting ribs connected to the inclined columns or the cross columns.

The present invention has the following advantageous effects as compared with the existing reinforced concrete construction.

1. Modern building materials are mainly steel, cement, sandstone brick molds, which are the main source of environmental damage. The assembled steel structure mainly uses steel and autoclaved lightweight concrete, without sandstone brick mold, twenty-story building. The amount of steel per square is less than 100 kg, and the autoclaved lightweight aerated concrete is 300 kg. The square weight is less than one-seventh of the steel-concrete building. The assembled installation has no dust, which is to protect the green mountains and green waters. The natural environment of Liangtian.

2. Assembled steel structure building adopts four beams and eight columns and bucket arches in the way of top beam and column. The bucket arches are bolted joints of rivet structure, no welding, can realize standard parts storage, factory automation equipment production, and its processing precision is steel concrete building. Ten times.

3. Because it is standardized production and assembly line operation, 90% of the workload is completed on the workshop automation equipment, and the construction site is assembled by the building block. The speed is fast and the efficiency is high. Therefore, the labor is only one tenth of the steel-concrete building. .

4. The existing conventional ALC autoclaved lightweight aerated concrete sheet is used as the laminate and wallboard. The assembled steel structure does not need a load-bearing wall, and the overall large span design of the building can be realized. The entire 20-storey building has only three layers of steel-concrete construction, the ground sinking ratio is small, and the flexibility of the cross column, the inclined column and the H-shaped steel. The bucket arches contain most of the twisting force. The assembled steel structure can achieve 9 degree defense and 8 earthquake resistance, so the earthquake resistance is ten times that of the existing building.

5. Assembled steel structure building can realize the standard product parts reserve, factory automatic production, large span design, the amount of building materials used is small, the cost is low, and the cost per square is only half of the steel-concrete building, which is the working class can live. Building.

6. The main steel structure adopts dip-coating process, and the protective layer is thick, and the service period can reach 100 years. Because it is a steel structure, it is convenient to connect various fixing parts, and the external shape of the building can be arbitrarily changed. Because of the large span, there is no load-bearing wall, the interior can be divided according to the needs, and can be arbitrarily removed, and the whole building is easy to dismantle and less construction waste. Due to the low construction cost, a one-bedroom sky garden can be realized, and the public area of each floor can be increased, the single-layer neighbors can be exchanged, and the environment that the door does not know can be changed. Therefore, it is not backward after a hundred years of use.

DRAWINGS

1 is a schematic view showing the assembly of a cross-node bucket member according to the present invention.

Figure 2 is an assembly view of a bucket arch with a slanted or crossed column.

Figure 3 is a schematic view of the structure of the column.

Figure 4 is a schematic view of the structure of the bucket arch rivet.

Figure 5 is a schematic view showing the structure of the bucket member.

Figure 6 is a schematic view showing the structure of the corner connector.

In the drawings: 1, upper column; 2, upper side rivet; 21, buckle groove; 22, rivet vertical panel; 23, rivet reinforcement rib; 24, rivet horizontal plate; 3, upper side member; , fastening protrusion; 32, 立立 ;; 33, 加强 reinforced reinforced; 34, 水平 horizontal plate; 4, auxiliary beam; 5, screw hole; 6, girders; 7, lower column; 71, side snail Hole; 72, slotted screw hole; 8, inclined column or cross column; 9, upper oblique mounting rib; 10, lower oblique mounting rib.

detailed description

This fabricated steel structure is mainly made of H-beam. Designed in the form of a top beam and column, using the traditional Chinese "four beam" beam, auxiliary beam, side beam, connecting beam "eight column" cross column, T-shaped column, outer corner column, inner corner column, side column, oblique column, cross column, Along the column. The bucket arch is used to connect all the beams and columns. The bucket arch is designed as a riveted structure and boltless with no solder joints. The bucket arch has only a fastening force and carries gravity on various top beam columns. All beams are longitudinal or transverse through beams, connected by connecting plates, and then equipped with ALC autoclaved lightweight aerated concrete plates, which are longitudinal through plates, which are fixed on the side beams. This kind of board has only a quarter of the weight of reinforced concrete material. Due to the large span of the steel structure, there is no load-bearing wall. The whole building has only one-seventh of the weight of the reinforced concrete building.

Figure 1 shows the assembled structure of a fabricated steel structure building, which is a schematic view of the assembly of the intersection of the beam and the column. Among them, the main beam, the auxiliary beam and the column of the assembled steel structure main building adopt H-shaped steel, the upper beam 6 supports the auxiliary beam 4, and the vertical beam 6 and the auxiliary beam 4 are installed with the vertical column. At the intersection, there are provided bucket members for connecting the girders 6, the sub-beams 4, and the columns together. The bucket arch is divided into a shackle and a rivet. The shackles and rivets are distributed around the uprights. The shackles and the rivets are respectively provided with snap-fit protrusions 31 for fastening each other, a buckle groove 21, adjacent jaws and The rivet members are fastened together, and the shackles and rivets are mounted on the column by a detachable connection. The shackles and rivets are also connected to the beam by means of a detachable connection. The above detachable connection method is preferably a bolt connection.

Further, the element and the rivet are mounted on the column by bolt connection. As shown in FIG. 3, a plurality of screw holes are arranged at the bottom of the U-shaped groove at the upper and lower ends of the column and at the side of the end of the column, and the screw holes are staggered to facilitate the passage of the bolt without interference. The bolt passes through the jaw, the rivet and the screw hole to connect the bucket arch to the column. The corresponding positions of the girders 6 and the sub-beams 4 also have the above-mentioned screw holes, and the screw holes at the side and the groove-shaped bottom are also staggered to facilitate the passage of the bolt without interference.

Further, as shown in FIG. 4-5, the main body of the boring member and the rivet member has an L-shaped cross section, and is composed of two vertical panels and horizontal plates that are perpendicular to each other. The vertical panel 32 is provided with a vertical fastening protrusion 31. The vertical panel 22 of the rivet member is provided with a vertical buckle groove 21. The bottom of the horizontal plate of the boring member and the rivet member is provided with a U-shaped groove, a shackle and a rivet. The horizontal plate is provided with a plurality of screw holes. As shown in FIG. 4, the buckle groove 21 is located outside the right angle. In order to enhance the strength of the shackles and rivets, the ribs and rivets have integral ribs on the inner side of the right angle to enhance the strength of use. The rib is an L-shaped integral reinforcing plate. Screw holes on the ribs are symmetrically distributed on both sides of the ribs.

As shown in Fig. 1, the girders 6 and the sub-beams 4 are installed in a cross shape, which is a relatively common installation method. The girders 6 are vertically intersected with the sub-beams 4, the girders are at the bottom, the sub-beams are at the top, the upper beams 6 are above the intersection of the girders 6 and the sub-beams 4, and the lower columns 7 are below the intersections of the girders 6 and the sub-beams 4. There are shackles and rivets on the upper and lower columns. The shackles and the rivets are respectively provided with the fastening protrusions 31 and the buckle grooves 21 for fastening together, and the adjacent jaws and the rivets are fastened together. The bolt passes through the vertical panel and the column of the bucket arch (the shackle and the rivet) and is hung on the column. The bolt passes through the horizontal plate and the beam (main beam, auxiliary beam) of the bucket arch, and connects the beam and the column as a whole. Both the upper and lower columns are connected in the same manner as described above.

In order to integrally connect the above-mentioned beam and column with the inclined column or the cross column 8, it is necessary to provide a mounting rib which is connected to the inclined column or the cross column 8 in the boring member and the rivet. The mounting ribs are coplanar with the slanted post or cross column 8. The mounting rib is a rectangular thin plate with a right angle inside the gusset and the rivet, and is connected to the end of the inclined column or the cross column by bolts as a whole. Further improve the overall frame strength of steel structures.

The beam series of the invention adopts H-shaped steel, and the standard models of the steel have 10#, 15#, 20#, 25#, 30#, 40#, 50#, 60# and the like and non-standard models. For example, the 20# section steel has a height of 200 mm and a width of 200 mm. All sections have a thickness of 20 mm and a length of N. On each standard manufactured beam, beam attachment mounting holes are formed on both sides. On the plane of the beam, according to the modulus size, there are N sets of bucket arch mounting holes, and the modulus dimension is a normative technical value uniformly set according to the assembled steel structure. This modular standard is used regardless of the design of any building. Therefore, the modulus of the steel of any type of beam is the same. At the intersection of each module size of the beam, there are N sets of mounting holes required for the installation of the beam type arch members, and there are 6 mounting holes in each group. Drill through the through holes of the upper and lower planes of the H-beam. The type of each beam is different, the hole diameter and the hole position are different, but the modulus is the same. Each beam mainly carries the weight of the layer. Therefore, the beam selection specification is smaller than the specification of the column. The beam is mainly divided into the beam, the auxiliary beam, the side beam and the connecting beam, that is, the four beams. The girders are longitudinally installed, the top of the column is under the girders, and the girders are laterally mounted in a cross shape. They are fixed on the girders and fixed by the bucket arches. The side girders are installed on the girders around the same floor, and are mainly used for the installation of the outer wall. The connecting beam is the main beam used for the separation of the small rooms. The four types of beams are selected in the same layer. Because they have the same mounting holes, they can be used interchangeably, so it is a standard beam. . In the prefabricated steel structure building, according to the number of floors and the height of the floor building, each layer is a model. The more the number of floors, the larger the model selected on the bottom layer, and vice versa. The beam is mainly responsible for the shear force during the earthquake, and the girders and sub-beams can also be installed side by side to improve the resistance to torque.

The column is shown in Figure 3. As shown in the standard drawing of the column series, the column series also uses H-shaped steel. The height of the floor minus the thickness of the beam and the secondary beam is equal to the actual height of the column. As shown in the figure, the two ends of the column are machined with the mounting holes of the bucket arches that match the specifications of the column and drilled through. The H-section steel is divided into two planes and two concave surfaces. The lower end of the column is installed with the hole position, the plane and the concave surface are misaligned to facilitate the installation of the bolt, and the mounting hole at the upper end of the column is dislocated at the lower end. The main reason is that the lower end of the column sits on the auxiliary beam, and the upper end is placed under the girders. The installation of the beam is a cross that is crossed. The column carries all the weights of the upper part of the column. Therefore, the ability of the column to resist the lever torque should be the sum of the beam and the secondary beam. Therefore, the H-shaped steel of the column should be larger than the beam. Assembling steel structure buildings are mainly divided into cross column, T-shaped column, outer corner column, inner corner column, side column, oblique column, cross column, and eight columns along the column. The cross column is the column of the top beam and the auxiliary beam in the middle of the building; the T-pillar is the column outside the wall at both ends of the building, and the T-shaped column; the outer corner column is the column at the four corners of the building; the inner corner column is the corner of the building outside the corner of the building. Column; the side column is the column at the corridor; the slant column is the support column for earthquake resistance at the bottom of the building; the cross column is the positioning column for earthquake resistance in the building; along the column is the reinforcement column at the top of the building. The cross column, the T-shaped column, the outer corner column, the inner corner column and the side column are the same specifications of the same layer, the installation dimensions are the same, and the installation positions are different, and can be replaced with each other. The three columns of the slanted column, the cross column, and the column are the same as the column, but the dimensions and mounting holes are different from those of the column. In the design of fabricated steel structure buildings, different types of column standard parts are selected according to the number of floors and the weight of the building. The higher the floor, the larger the type of column selected for the bottom layer, and vice versa. The beam carries the shearing force of parallel movement. The column carries the lever force of the forward and backward movement. The standard part steel type selected for the column is the sum of the beam and the auxiliary beam, so the column is larger than the beam. The bottom pillar can also be used in two or four columns and integrated to improve the anti-lever torque of the column.

The technical core of the fabricated steel structure building is the bucket arch member, the rivet member, the cross member of the cross column, the rivet member, the corner connector, the straight beam connector and the like for connecting each joint. Each bucket arch is matched to the specifications of its associated H-beam, beam and column.

The bucket arch has a riveted structure. The piece is a 90-degree right-angled arch. Different types of columns correspond to different types of bucket arches. The groove on the lower side of the jaw is fastened on the beam so that the bucket arch and the beam cannot move left and right. On the outer side of the vertical plane of the bucket arch and on the horizontal side, there is a through-strength rib to enhance the resistance of the bucket member to torque. Since the bucket members are fixed on both sides of the column, they are fixed on the beam on the subframe. There are four shackles and rivets on the upper or lower end of each column, so the overall resistance to torque is three times that of the column. Since the torque of the column is the lever force, half of the height of the column is three times that of the bucket. Its resistance to torque is balanced.

In the lowermost layer of the high-rise building, the beam body can be designed as a double row or a column designed to be used in parallel, so that the edge and the rivet of the bucket arch can widen the width and depth of the mouth groove. The vertical part of the bucket arch and the horizontal part are at a right angle of 90°. It can also be designed to be other degrees or left and right to design other degrees, so that the cross degree and the number of slopes of the beam are changed, so that the appearance of the whole building can be changed to reach the whole building. The exterior of the building is arbitrarily designed, arbitrarily combined, and arbitrarily changed, and the appearance is more beautiful. Therefore, the beam and the column of the present invention are the keels of the entire building. The nodes connecting the beams to the columns are the bucket members and their attachments, which form the core of the technology of the present invention.

The series of cross-column and oblique-column rivet parts of the bucket arch is shown in Figure 2. He has a protruding mounting rib at an angle of 90° than the bucket arch. The rib has mounting holes for connecting the cross column or the inclined column. It is used to improve the overall rigidity of the column and the beam and enhance the torque resistance of the entire building. At the same time, the H-steel profiles of the columns and beams have certain flexibility when they have strong torque. This combination of rigid and soft is the fundamental reason for improving the seismic capacity.

All beams are through beams, which requires the same beam to be connected to the beam. The straight beam connecting piece is shaped like a channel steel. The principle is as follows: the railroad track is sandwiched by two pairs of double-sided clamps at the joints in the grooves on both sides of the beam. The bolts are fixed and assembled into the through-beams. The resistance of the straight beam joints to the torque-resistance is greater than the resistance of the H-beams to the torque-resistance, so that the joints of the beams are not supported by additional design pillars.

As shown in Figure 6, the corner joints of the beam. Since all the beams are mounted one above the other, the corner joints of the two beams are connected using the joints of the two beams without overlapping the support of the pillars. There are two protruding platforms behind the erecting surface of the beam angle, which are inserted into the side grooves of the upper beam, and the upper plane is parallel with the upper surface of the beam. The beam angle connector has the best shear resistance performance.

Schematic diagram of the rivet assembly of the bucket arch, as shown in Figure 1. When the torque is encountered, the rivet structure is fastened together in any direction, and the bolts are fixed to form a whole. Therefore, at each of the cross beams having the upper and lower columns, there are four upper bucket arches of the lower layer and four bucket arches of the lower side of the upper layer, which jointly fix the lower pillar girders, the auxiliary beams and the upper columns.

Claims

An assembly structure of a fabricated steel structure building, characterized in that: the girders, the auxiliary beams and the columns of the main body of the assembled steel structure are all made of H-shaped steel, the girders (6) support the auxiliary beams (4), the girders (6) and A column is installed at the intersection of the sub beam (4);

The cross-position is equipped with a bucket arch for connecting the girders (6), the sub-beams (4) and the columns together. The bucket arches are divided into shackles and rivets. The shackles and rivets are distributed around the pillars, and the shackles and rivets are arranged. The fastening protrusions (31) and the buckle grooves (21) for fastening each other are respectively arranged, the adjacent jaws and the rivets are fastened together, and the shackles and the rivets are mounted on the columns by detachable connection .
The assembly structure of the prefabricated steel structure building according to claim 1, wherein the boring member and the rivet member are mounted on the column by bolt connection, and the bottom of the U-shaped groove at the end of the column and the side of the end portion of the column are disposed. A plurality of screw holes, the bolts pass through the jaws, the rivets and the screw holes, and the bucket arches are connected with the columns.
The assembly structure of the prefabricated steel structure according to claim 1, wherein the body of the boring member and the rivet member are L-shaped, and the fascia vertical panel (32) is provided with a vertical fastening protrusion (31). The rivet vertical panel (22) is provided with a vertical buckle groove (21), the bottom of the horizontal plate of the boring piece and the rivet member is provided with a U-shaped groove, and the horizontal plate of the boring piece and the rivet piece is provided with a plurality of screw holes. .
The assembly structure of the prefabricated steel structure according to claim 3, wherein the gusset and the rivet have reinforcing ribs on the inner side of the right angle, and the ribs have symmetrically distributed screw holes on both sides of the rib.
The assembled structure of the prefabricated steel structure according to claim 1, characterized in that the girders (6) and the sub-beams (4) are installed in a cross shape, and the cross-over positions of the girders (6) and the sub-beams (4) are upper. The column (1), the lower beam (6) and the sub beam (4) are located below the lower column (7), and the upper and lower columns are distributed around the upper and lower columns.
The assembly structure of a prefabricated steel structure according to claim 5, characterized in that the gusset and the rivet are provided with mounting ribs connected to the inclined column or the cross column (8).