CN110644640B - An explosion-proof wall connection structure capable of relative rotation around nodes - Google Patents

Abstract

The invention relates to an explosion-proof wall connecting structure capable of relatively rotating around a node, belonging to the technical field of civil engineering, wherein two ends of an explosion-proof wall are respectively connected and fixed with a concrete column through wall column connecting pieces; the wall connecting piece mainly comprises side column rectangular steel cylinders and rotating assemblies, two side column rectangular steel cylinders are fixed at the end part of the hollow steel wall body, the side column rectangular steel cylinders are connected with the hollow steel wall body through bolts, and a plurality of rotating assemblies are arranged between the two side column rectangular steel cylinders; concrete is poured in the hollow steel wall body and between the side column rectangular steel cylinders, and foamed aluminum is filled in the side column rectangular steel cylinders.

Description

An explosion-proof wall connection structure capable of relative rotation around nodes

technical field

The invention relates to an explosion-proof wall connection structure capable of relative rotation around nodes, belonging to the technical field of disaster prevention and mitigation engineering.

Background technique

Explosive places such as oil depots, chemical companies, refueling stations, gas supply sites and gas storage stations often cause structural damage, mass casualties and economic losses due to explosions. Military sites such as waterways and waterways also need separate explosion-proof walls to control possible explosions. In addition, various explosions such as terrorist attacks and local wars and conflicts occur from time to time. It is particularly important to set up a blast wall structure with good anti-explosion and anti-impact effects to reduce the damage to people's lives and properties and surrounding structures.

The Chinese invention patent of patent application number 201610449136.X proposes a design method for a large deformation and anti-bending explosion-proof wall, which mainly absorbs the explosion shock wave through the plastic deformation of multiple layers of light corrugated steel plates and the filling of high-damping and high-elasticity materials in the explosion-proof wall. Energy, the energy conversion form is relatively simple, the energy cannot be released in the form of kinetic energy, the structural section design of the wall itself is completed, and the key measures such as wall connection are not designed; the Chinese invention patent of patent application number 201910116998.4 proposes a The design method of the new fiber reinforced concrete anti-explosion impact wall panel mainly starts from the energy dissipation and strength of the explosion-proof structure itself. Full control of splashing of concrete fragments on walls. The design of the explosion-proof wall connection structure that consumes the energy of the explosion shock wave through the relative rotation of the explosion-proof wall around the nodes and thus produces a protective effect on the personnel and structures behind the explosion-proof wall has not been mentioned. The damage pattern that occurs and the control and prediction of the movement path are considered in the connection structure design, and there is no structural connection form between the explosion-proof wall and the column.

SUMMARY OF THE INVENTION

In order to solve the technical problems existing in the prior art, the present invention provides an explosion-proof wall connection structure capable of effectively resisting explosion shock wave energy and having a wide range of applications that can relatively rotate around nodes.

In order to achieve the above purpose, the technical solution adopted in the present invention is an explosion-proof wall structure that can relatively rotate around the nodes, including concrete columns and an explosion-proof wall fixed between the concrete columns. The explosion-proof wall is mainly composed of a plurality of hollow steel walls and wall connectors for connecting the hollow steel walls, and is located at the end of the explosion-proof wall. The hollow steel wall body is respectively fixed on the wall column connector through the wall body connector; the wall body connector is mainly composed of a side column rectangular steel cylinder and a rotating assembly, and the end of the hollow steel wall body is fixed with a Two side column rectangular steel cylinders, and the side column rectangular steel cylinder and the hollow steel wall are connected by bolts, and a plurality of rotating components are installed between the two side column rectangular steel cylinders; the rotating components are mainly It consists of a fixed backing plate, an upper and lower baffle guide plate and a connecting plate. The two fixed backing plates are respectively fixed on the ends of the two hollow steel walls by bolts, and a hinge seat is installed on the fixed backing plate. The upper and lower baffle guide plates are respectively hinged on the hinge seat, and the upper and lower baffle guide plates are hingedly connected by two connecting plates; concrete is poured in the hollow steel wall and between the rectangular steel cylinders of the side columns, so the The rectangular steel cylinder of the side column is filled with foamed aluminum.

Preferably, the wall column connector is mainly composed of a column rectangular steel cylinder, a tightening thread steel and a tightening nut, and a plurality of transverse restraining steel bars are fixed on the concrete column from top to bottom. One end is fixed on the transverse restraining steel bar, the other end of the tightening threaded steel penetrates the rectangular steel cylinder of the column, the end is fixed by the tightening nut, and the two side column rectangular steel cylinders on the side of the explosion-proof wall are fixed by bolts. On the rectangular steel cylinder of the vertical column, concrete is poured in the rectangular steel cylinder of the vertical column.

Preferably, the transverse restraint steel plate is arranged on the concrete column, and both ends of the transverse restraint steel bar are inserted into the connecting steel sleeve, the transverse restraint steel bar and the connecting steel sleeve are welded and fixed, and the transverse restraint steel bar is also A plurality of U-shaped nails are provided, and the U-shaped nails are inserted on the concrete column.

Preferably, the hollow steel wall body is mainly formed by welding four outer steel frame plates, the column rectangular steel cylinder is mainly welded by four steel frame panels, and the side column rectangular steel cylinder is mainly composed of multiple It is formed by welding a trough structure with stacked trough steel plates and a longitudinal baffle covering the trough structure.

Preferably, the width of the side plate of the rectangular steel cylinder of the vertical column is equal to the height of the channel steel plate, and both are 1/3-1/2 of the width of the concrete column.

Compared with the prior art, the invention has the following technical effects: the design of the invention is reasonable, the plastic hinge connection is adopted between the explosion-proof walls and between the explosion-proof walls and the concrete columns, and the explosion-proof wall connection structure has the ability to resist continuous explosion. , the wall body transforms and dissipates the energy of the blast shock wave through various forms through the deformation and damage of the partial connecting structure and the relative rotation of the wall body, so that the impact resistance effect is better and superior; the wall connector adopts a multi-section hinged structure, and pours concrete in the structure The formation of a fixed structure, in addition to the good effect of resisting the blast shock wave, also takes into account the possible damage patterns of the wall and the control and prediction of the movement path; the wall is wrapped with concrete by steel frame plates to prevent debris from the explosion. Secondary damage is caused to personnel and structures; at the same time, the present invention has wider applicability and is not limited by locations.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of a wall column connector in the present invention.

3 is a schematic structural diagram of a hollow steel wall body in the present invention.

FIG. 4 is a schematic structural diagram of a wall connector in the present invention.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

As shown in Fig. 1, Fig. 3 and Fig. 4, an explosion-proof wall structure that can rotate relative to the nodes includes a concrete column 1 and an explosion-proof wall 2 fixed between the concrete columns 1. Two parts of the explosion-proof wall 2 The ends are respectively connected and fixed with the concrete column 1 through the wall column connector 3. The explosion-proof wall 2 is mainly composed of a plurality of hollow steel walls 4 and wall connectors 5 for connecting the hollow steel walls, located in the explosion-proof wall. The hollow steel wall body 4 at the end of 2 is respectively fixed on the wall column connector 3 through the wall body connector 5; the wall body connector 5 is mainly composed of a side column rectangular steel cylinder 6 and a rotating assembly 7. The end of 4 is fixed with two side column rectangular steel cylinders 6, and the side column rectangular steel cylinder 6 is connected with the hollow steel wall 4 by bolts, and a plurality of rotating components are installed between the two side column rectangular steel cylinders 6. 7; The rotating assembly 7 is mainly composed of a fixed backing plate 8, an upper and lower baffle guide plate 9 and a connecting plate 10. The two fixed backing plates 8 are respectively fixed on the ends of the two hollow steel walls 4 by bolts, and the fixed pad A hinged seat 11 is installed on the plate 8, the upper and lower baffle guide plates 9 are hinged on the hinged seat 11 respectively, and the upper and lower baffle guide plates 9 are hingedly connected by two connecting plates 10; Concrete is poured between the rectangular steel cylinders 6, and the side column rectangular steel cylinders 6 are filled with foamed aluminum.

In the present invention, the hollow steel wall body 4 is mainly formed by welding four outer steel frame plates, and the side column rectangular steel cylinder 6 is mainly composed of a trough-shaped structure in which a plurality of trough-shaped steel plates 18 are stacked and a trough-shaped structure covered on the trough-shaped structure. The longitudinal baffles 19 are welded. Wall connectors 5 are used for connection between the explosion-proof walls 2 and between the explosion-proof walls 2 and the concrete columns 1 . Since the wall body connector 5 is mainly composed of a side column rectangular steel cylinder 6 and a rotating assembly 7, the side column rectangular steel cylinder 6 is respectively connected to the hollow steel wall body 4, and a plurality of rotating components 7 are installed in the middle, and the number of rotating components is based on the actual situation. Calculation. The rotating assembly is formed by hinged connection between the upper and lower baffle guide plates 9 and the connecting plate 10. After the explosion-proof wall is installed, concrete is poured between the rectangular steel cylinders 6 of the side columns to fix the rotating assembly. In this way, when the explosion shock wave energy is small, the strength of the wall itself is sufficient to resist its damage; when the explosion shock wave energy is large, due to the maximum bending moment and shear force generated by the column edge and the middle of the wall, the shock wave generated by the explosion makes the wall The center and the edge of the column form a plastic area to generate a plastic hinge, the shock wave acts on the wall to reach the ultimate bearing capacity of the wall, and the rectangular steel cylinder 6 of the side column arranged in the wall connector is plastically deformed or damaged. At the same time, in order to make it controllable With the predicted movement form, the hollow steel walls 4, the explosion-proof wall and the concrete column are connected by rotating components 7 to form a hinged form. When the explosion shock wave hits the wall, the shock wave makes the column and the wall, and the wall and the wall rotate relative to each other, so as to consume the energy of the explosion shock wave. Filling the side column rectangular steel cylinder 6 with foamed aluminum can also improve the energy absorption effect of the side column rectangular steel cylinder.

As shown in FIG. 2, the wall column connector 3 is mainly composed of a column rectangular steel cylinder 12, a tightening threaded steel 13 and a tightening nut 14, and a plurality of transverse restraining steel bars 15 are fixed on the concrete column 1 from top to bottom. One end of the threaded steel 13 is fixed on the transverse restraining steel bar 15, and the other end of the tightening threaded steel 13 penetrates through the column rectangular steel cylinder 12, and the end is fixed by the tightening nut 14. The column rectangular steel cylinder 12 is mainly welded by four steel frame panels. Thus, the two side column rectangular steel cylinders 6 on the side of the explosion-proof wall 2 are fixed on the column rectangular steel cylinder 12 by bolts, and concrete is poured into the column rectangular steel cylinder 12 . The wall column connector is mainly used for the connection between the explosion-proof wall and the concrete column, and forms a reliable connection structure with the concrete column, which is also convenient for the installation and fixation of the explosion-proof wall.

Among them, the transverse restraint steel bar 15 is arranged on the concrete column 1, and the two ends of the transverse restraint steel bar 15 are inserted into the connecting steel sleeve 16. A plurality of staples 17 are provided, and the staples 17 are inserted on the concrete column 1 . The transverse restraint steel bar 15 is pre-bent and formed according to the size of the reinforced concrete column, and then sleeved on the reinforced concrete column in sequence from bottom to top, and fixed with U-shaped nails 17 .

In addition, the width of the side plate of the rectangular steel cylinder of the column is equal to the height of the channel steel plate, and is 1/3-1/2 of the width of the concrete column 1, so that the rectangular steel cylinder of the column and the rectangular steel cylinder of the side column are wide enough to ensure sufficient deformation allowance.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention. .

Claims (5)

1. a kind of explosion-proof wall structure that can rotate relative to the node, including concrete column and the explosion-proof wall being fixed between the concrete columns, it is characterized in that: the two ends of the explosion-proof wall are respectively connected with the wall column connector by the wall column connector. The concrete columns are connected and fixed. The explosion-proof wall is mainly composed of a plurality of hollow steel walls and wall connectors for connecting the hollow steel walls. The hollow steel walls located at the ends of the explosion-proof wall are respectively The wall connector is fixed on the wall column connector; the wall connector is mainly composed of a side column rectangular steel cylinder and a rotating assembly, and two side column rectangular steel cylinders are fixed at the ends of the hollow steel wall. , and the rectangular steel cylinder of the side column and the hollow steel wall are connected by bolts, and a plurality of rotating components are installed between the two rectangular steel cylinders of the side column; the rotating components are mainly composed of a fixed backing plate, an upper and lower block The table guide plate and the connecting plate are formed, the two fixed backing plates are respectively fixed on the ends of the two hollow steel walls by bolts, and the fixed backing plate is installed with a hinge seat, and the upper and lower baffle guide plates are respectively hinged On the hinge seat, the upper and lower baffle guide plates are hingedly connected by two connecting plates; concrete is poured in the hollow steel wall and between the rectangular steel cylinders of the side columns, and the rectangular steel cylinders of the side columns are filled with concrete. Filled with aluminum foam. 2. An explosion-proof wall structure capable of relative rotation around a node according to claim 1, wherein the wall column connector is mainly composed of a column rectangular steel cylinder, a tightening thread steel and a tightening nut, A plurality of transverse restraining steel bars are fixed on the concrete column from top to bottom, one end of the tightening threaded steel is fixed on the transverse restraining steel bar, the other end of the tightening threaded steel penetrates the rectangular steel cylinder of the column, and the end passes through the column. Fastening nuts are fixed, the two side column rectangular steel cylinders on the side of the explosion-proof wall are fixed on the vertical column rectangular steel cylinder by bolts, and concrete is poured into the vertical column rectangular steel cylinder. 3. An explosion-proof wall structure capable of relative rotation around nodes according to claim 2, characterized in that: the transverse restraining steel plate is arranged on the concrete column, and the two ends of the transverse restraining steel are inserted in the connection Inside the steel sleeve, the transverse restraint bars are threadedly connected and fixed with the connecting steel sleeve, and the transverse restraint bars are further provided with a plurality of U-shaped nails, and the U-shaped nails are inserted into the concrete column. 4. An explosion-proof wall structure capable of relative rotation around nodes according to claim 2 or 3, characterized in that: the hollow steel wall body is mainly formed by welding four outer steel frame plates, so The rectangular steel cylinder of the vertical column is mainly welded by four steel frame panels, and the rectangular steel cylinder of the side column is mainly welded by a groove structure in which a plurality of grooved steel plates are stacked and a longitudinal baffle covering the groove structure. . 5. An explosion-proof wall structure capable of relative rotation around a node according to claim 4, characterized in that: the width of the side plate of the rectangular steel cylinder of the column is equal to the height of the channel steel plate, and is the width of the concrete column 1/3-1/2 of .

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