Composite blast wall with prestressed fish-bellied beam support

Abstract

The application relates to a composite anti-blast wall, in particular to a composite anti-blast wall adopting a prestressed fish-belly beam support, which comprises a keel steel frame, the keel steel frame comprises a support frame, a fish-belly beam is fixedly installed in the support frame, a first straight web is fixedly installed at the middle of one side of the fish-belly beam, second straight webs are arranged at the two ends of the first straight web, a plurality of guide holes are formed in the other ends of the first straight web and the second straight webs, the application further comprises fixing mechanisms, the fixing mechanisms are fixedly installed at the two ends of the side wall of the other side of the fish-belly beam, steel strands are inserted into the guide holes, and the two ends of the steel strands are fixedly connected with the fixing mechanisms arranged at the two ends of the fish-belly beam, prestress is generated through the tension of the steel strands to buffer the impact force of explosion, the original transverse keel channel steel is replaced by the fish-belly beam, the prestress applied on the steel strands generates resistance, the impact force generated by explosion is buffered, and the use cost of materials is further saved.

Description

Technical Field

[0001] This invention relates to a composite blast-resistant wall, and more particularly to a composite blast-resistant wall using a prestressed fish-belly beam support. Background Technology

[0002] The development of composite blast-resistant walls stems primarily from the increasing demands for building safety in recent years. With the growing national emphasis on public building safety, blast-resistant walls have become a significant trend in the construction industry. Explosions pose a tremendous threat to life and property. To effectively reduce the harm caused by blast waves and debris, some blast-resistant wall designs have emerged in China. Initially, blast-resistant wall designs mainly considered the wall's thickness and strength to resist the impact of blast waves and debris. However, these simple indicators cannot fully reflect the actual effectiveness of blast-resistant walls. To better evaluate the performance of blast-resistant walls, China began to introduce international standards, such as the US FM standard. These standards have placed higher demands on the design, manufacturing, and testing of blast-resistant walls, leading to a more standardized development of domestic blast-resistant wall technology. However, to ensure the blast-resistant effect of composite blast-resistant walls, the material cost has also increased. Summary of the Invention

[0003] The main objective of this invention is to provide a composite blast-resistant wall using a prestressed fish-belly beam support, in order to solve the problem in related technologies where the material cost of the composite blast-resistant wall increases in order to ensure its blast-resistant effect.

[0004] To achieve the above objectives, according to one aspect of the present invention, a composite blast-resistant wall employing a prestressed fish-belly beam support is provided, comprising a keel steel frame, an inner plate fixedly installed inside the keel steel frame, outer plates provided on both sides of the inner plate, the outer plates being fixedly connected to the keel steel frame, the keel steel frame including a support frame, a fish-belly beam fixedly installed inside the support frame, a first straight web member fixedly installed at the middle of one side of the fish-belly beam, second straight web members provided at both ends of the first straight web member, the second straight web members being fixedly connected to one side wall of the fish-belly beam, and several guide holes being provided at the other ends of both the first and second straight web members, further comprising:

[0005] The fixing mechanism is fixedly installed at both ends of the other side wall of the fish belly beam. A number of steel strands are inserted into the guide holes. The two ends of the steel strands are fixedly connected to the fixing mechanisms set at both ends of the fish belly beam. The first straight bar and the second straight bar support the steel strands. The tension of the steel strands generates prestress to buffer the impact force of the explosion.

[0006] Furthermore, the inner panel is made of rock wool, and the outer panel is made of fiber cement cast with galvanized steel material pressed onto the surface.

[0007] Furthermore, the support frame is made of equilateral cold-formed channel steel, and each side of the support frame is composed of at least two equilateral cold-formed channel steels.

[0008] Furthermore, first oblique braces are fixedly installed on both sides of the first straight brace, and the other end of the first oblique brace is fixedly connected to one side wall of the fish belly beam. The first straight brace, the first oblique brace and the fish belly beam are connected in a triangular shape.

[0009] Furthermore, second oblique braces are fixedly installed on both sides of the second straight brace, and the other end of the second oblique brace is fixedly connected to one side wall of the fish belly beam. The second straight brace, the second oblique brace and the fish belly beam are connected in a triangular shape, and the first straight brace is higher than the second straight brace.

[0010] Furthermore, the fixing mechanism includes a fixing block, and the fixing block has a plurality of turning holes.

[0011] Furthermore, a steering block is rotatably installed inside the steering hole, and a fixing hole is provided inside the steering block, the cross-section of which gradually decreases from the outside to the inside.

[0012] Furthermore, a fixing block is provided inside the fixing hole, and the fixing block is conical.

[0013] Furthermore, the fixing block has a through hole, and four fixing clips are provided at one end of the fixing block. The four fixing clips close to form a clamping hole, and a number of anti-slip textures are provided on one side wall of the fixing clip.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this composite blast-resistant wall using a prestressed fish-belly beam support, the original transverse keel channel steel is replaced by a fish-belly beam. A first straight web member and a second straight web member are installed on one side wall of the fish-belly beam. The steel strands inserted in several guide holes are fixed by a fixing mechanism to generate resistance to the prestress applied to the steel strands, thereby buffering the impact force generated by the explosion and further saving material costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the composite blast-resistant wall using prestressed fish-belly beam supports;

[0017] Figure 2 A structural schematic diagram of the keel steel frame viewed from the front;

[0018] Figure 3 This is a structural schematic diagram of the keel steel frame from the rear view;

[0019] Figure 4 This is a schematic diagram of the overall structure of the fish-belly beam;

[0020] Figure 5 This is a schematic diagram of the structure in half-section view of the fixed block;

[0021] Figure 6 This is a schematic diagram of the steering block in half section view;

[0022] Figure 7 This is a schematic diagram of the overall structure of the fixing block;

[0023] Figure 8 This is a schematic diagram of a half-section view of the fixed clamping block.

[0024] Illustration: 1. Keel steel frame; 101. Inner plate; 102. Outer plate; 103. Support frame; 104. Fish belly beam; 1041. First straight web member; 1042. Second straight web member; 1043. First diagonal web member; 1044. Second diagonal web member; 105. Guide hole; 106. Steel strand; 2. Fixing mechanism; 201. Fixing block; 2011. Turning hole; 202. Turning block; 2021. Fixing hole; 203. Fixing clamp; 2031. Fixing clamp piece. Detailed Implementation

[0025] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0026] Please see Figures 1-8 As shown, the purpose of this embodiment is to provide a composite blast-resistant wall using a prestressed fish-belly beam support, including a keel steel frame 1. An inner plate 101 is fixedly installed inside the keel steel frame 1, and outer plates 102 are provided on both sides of the inner plate 101. The outer plates 102 are fixedly connected to the keel steel frame 1. The keel steel frame 1 includes a support frame 103, and a fish-belly beam 104 is fixedly installed inside the support frame 103. A first straight web member 1041 is fixedly installed in the middle of one side of the fish-belly beam 104. Second straight web members 1042 are provided at both ends of the first straight web member 1041. The second straight web members 1042 are fixedly connected to one side wall of the fish-belly beam 104. Several guide holes 105 are opened at the other end of the first straight web member 1041 and the second straight web member 1042. The wall also includes:

[0027] Fixing mechanism 2 is fixedly installed at both ends of the other side wall of the fish belly beam 104. Steel strands 106 are inserted into several guide holes 105. The two ends of the steel strands 106 are fixedly connected to the fixing mechanisms 2 set at both ends of the fish belly beam 104. The first straight bar 1041 and the second straight bar 1042 support the steel strands 106. The tension of the steel strands 106 generates prestress to buffer the impact force of the explosion.

[0028] The inner panel 101 is made of rock wool, while the outer panel 102 is made of fiber cement with galvanized steel material pressed onto the surface. Rock wool fibers have a melting temperature greater than 1000℃, extremely low organic content, and are non-combustible Class A fireproof and heat-insulating materials. They have excellent high-temperature resistance and low thermal conductivity at high temperatures. Rock wool is also an elastic vibration damping and sound-absorbing material. Fiber cement has advantages such as being lightweight, high-strength, impact-resistant, fireproof, explosion-proof, earthquake-resistant, easy to install, and inexpensive, which are used to further reduce the production cost of composite explosion-proof walls.

[0029] The support frame 103 is made of equilateral cold-formed channel steel. Each side of the support frame 103 is composed of at least two equilateral cold-formed channel steels. The cross-sectional shape of the equilateral cold-formed channel steel is rectangular, with two equal side lengths. Equilateral cold-formed channel steel has the advantages of high strength, light weight, corrosion resistance, easy processing and cost-effectiveness. It is used to reduce the production cost of the composite blast-resistant wall and further ensure the structural strength of the support frame 103 and the blast-resistant performance of the composite blast-resistant wall.

[0030] First diagonal braces 1043 are fixedly installed on both sides of the first straight web member 1041. The other end of the first diagonal braces 1043 is fixedly connected to one side wall of the fish-belly beam 104. The first straight web member 1041, the first diagonal braces 1043 and the fish-belly beam 104 are connected in a triangular shape. The steel strand 106 is fixedly connected by the fixing mechanism 2. When the support frame 103 is subjected to impact force, the first straight web member 1041 will support the steel strand 106. In order to prevent the first straight web member 1041 from swaying under the prestress of the steel strand 106, the first diagonal braces 1043 are set on both sides of the first straight web member 1041, and the first straight web member 1041, the first diagonal braces 1043 and the fish-belly beam 104 form a triangular structure. This improves the structural strength of the first straight web member 1041 when it is subjected to the prestress of the steel strand 106, and further improves the blast resistance performance of the composite blast-resistant wall.

[0031] The second straight web member 1042 has second oblique web members 1044 fixedly installed on both sides. The other end of the second oblique web member 1044 is fixedly connected to one side wall of the fish belly beam 104. The second straight web member 1042, the second oblique web member 1044 and the fish belly beam 104 are connected in a triangular shape. The first straight web member 1041 is higher than the second straight web member 1042. The steel strand 106 is fixedly connected by the fixing mechanism 2. When the support frame 103 is subjected to impact force, the second straight web member 1042 will support the steel strand 106. In order to prevent the second straight web member 1042 from swaying under the prestress of the steel strand 106, the second straight web member 1042 will support the steel strand 106. By setting second diagonal web members 1044 on both sides of the second straight web member 1042, and forming a triangular structure with the fish-belly beam 104, the structural strength of the second straight web member 1042 under the prestress of the steel strand 106 is improved, further enhancing the blast resistance of the composite blast-resistant wall. The second straight web members at both ends of the first straight web member 1041 are lower than the first straight web member 1041, which makes the bending angle of the steel strand 106 smoother, further reducing the wear of the steel strand 106 and improving the service life and stability of the composite blast-resistant wall.

[0032] The fixing mechanism 2 includes a fixing block 201, which has several turning holes 2011. A turning block 202 is rotatably installed in the turning holes 2011. A fixing hole 2021 is opened in the turning block 202, and the cross-section of the fixing hole 2021 gradually decreases from the outside to the inside. A fixing clamping block 203 is provided in the fixing hole 2021. The fixing clamping block 203 is conical and has a through hole. Four fixing clips 2031 are provided at one end of the fixing clamping block 203. The four fixing clips 2031 close to form a clamping hole. Several anti-slip textures are provided on one side wall of the fixing clips 2031. The end of the steel strand 106 is inserted into the through hole. To prevent the steel strand 106 from bending at a certain angle during use, the steel strand 106 is designed to prevent the steel strand 106 from bending at a certain angle during use. The reduced prestress of 06 affects its blast resistance. The rotation of the steering block 202 within the steering hole 2011, pulled by the steel strand 106, makes the bending angle of the steel strand 106 more rounded and smooth, thus improving its blast resistance and further reducing wear. As the steel strand 106 is stretched, a force is generated between the fixing clamp 203 and the fixing hole 2021, causing the four fixing clips 2031 to approach each other under the guidance of the fixing hole 2021, thereby fixing and clamping the steel strand 106. The anti-slip texture further increases the friction between the fixing clips 2031 and the steel strand 106, ensuring the fixing clips 2031 secure the steel strand 106.

[0033] In practical use, this invention uses equilateral cold-formed double-channel steel welded together to form a keel steel frame 1. An inner plate 101 is installed inside the keel steel frame 1, and an outer plate is installed outside the inner plate. A fish-belly beam 104 is fixedly installed inside the keel steel frame 1. A first straight web member 1041 is fixedly installed in the middle of one side wall of the fish-belly beam 104. A first oblique web member 1043 is installed on the side wall of the first straight web member 1041. Second straight web members 1042 are installed at both ends of the first oblique web member 1043, and second oblique web members 1044 are installed at both ends of the second straight web member 1042. Then, a steel strand 106 is passed through the guide holes 105 opened in the first straight web member 1041 and the second straight web member 1042. The end of the steel strand 106 is then inserted into the fixing clamp 203. Finally, the steel strand 106 is pulled to move the fixing clamp... Block 203 fits tightly with the fixing hole 2021. At this time, the fixing clips 2031 will approach each other and clamp one end of the steel strand 106. Then, the excess part of the steel strand 106 is trimmed off. Then, the turning block 202 will rotate in the turning hole 2011 opened in the fixing block 201, so that the bending angle of the steel strand 106 is smooth. At this time, the first straight web bar 1041 and the second straight web bar 1042 will support the steel strand 106. Then, the first oblique web bar 1043 will support the first straight web bar 1041, and the second oblique web bar 1044 will support the second straight web bar 1042. At this time, the steel strand 106 is in a taut state. Then, the steel strand 106 will generate prestress for the impact force applied by the explosion and then buffer the impact force of the explosion.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A composite blast-resistant wall using a prestressed fish-belly beam support, comprising a steel frame (1), an inner plate (101) fixedly installed inside the steel frame (1), outer plates (102) provided on both sides of the inner plate (101), the outer plates (102) being fixedly connected to the steel frame (1), characterized in that, The keel steel frame (1) includes a support frame (103), in which a fish belly beam (104) is fixedly installed. A first straight bar (1041) is fixedly installed in the middle of one side of the fish belly beam (104). Second straight bars (1042) are provided at both ends of the first straight bar (1041). The second straight bars (1042) are fixedly connected to one side wall of the fish belly beam (104). Several guide holes (105) are opened at the other end of the first straight bar (1041) and the second straight bar (1042). The frame also includes: Fixing mechanism (2): Fixing mechanism (2) is fixedly installed at both ends of the other side wall of the fish belly beam (104). A number of guide holes (105) are filled with steel strands (106). The two ends of the steel strands (106) are fixedly connected to the fixing mechanism (2) set at both ends of the fish belly beam (104). The first straight bar (1041) and the second straight bar (1042) support the steel strands (106). The tension of the steel strands (106) generates prestress to buffer the impact force of the explosion. The fixing mechanism (2) includes a fixing block (201), which has a plurality of turning holes (2011) inside. A turning block (202) is rotatably installed in the turning hole (2011), and a fixing hole (2021) is opened in the turning block (202). The cross-section of the fixing hole (2021) gradually decreases from the outside to the inside. A fixing clamp (203) is provided in the fixing hole (2021). The fixing clamp (203) is conical. A through hole is opened in the fixing clamp (203). Four fixing clips (2031) are provided at one end of the fixing clamp (203). The four fixing clips (2031) close to form a clamping hole. A plurality of anti-slip textures are provided on one side wall of the fixing clip (2031).

2. The composite blast-resistant wall using prestressed fish-belly beam supports according to claim 1, characterized in that, The inner panel (101) is made of rock wool, and the outer panel (102) is made of fiber cement and galvanized steel with pressure applied to the surface.

3. The composite blast-resistant wall using prestressed fish-belly beam supports according to claim 1, characterized in that, The support frame (103) is made of equilateral cold-formed channel steel, and each side of the support frame (103) is composed of at least two equilateral cold-formed channel steels.

4. The composite blast-resistant wall using prestressed fish-belly beam supports according to claim 1, characterized in that, The first straight brace (1041) is fixedly installed with the first oblique brace (1043) on both sides. The other end of the first oblique brace (1043) is fixedly connected to one side wall of the fish belly beam (104). The first straight brace (1041), the first oblique brace (1043) and the fish belly beam (104) are connected in a triangular shape.

5. The composite blast-resistant wall using prestressed fish-belly beam supports according to claim 1, characterized in that, The second straight belly rod (1042) is fixedly installed with the second oblique belly rod (1044) on both sides. The other end of the second oblique belly rod (1044) is fixedly connected to one side wall of the fish belly beam (104). The second straight belly rod (1042), the second oblique belly rod (1044) and the fish belly beam (104) are connected in a triangular shape. The first straight belly rod (1041) is higher than the second straight belly rod (1042).

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