1. Product Overview VHF finger expansion joints made by Vinh Hung Investment and Production Co., Ltd (VinhHung IP), include 2 types: Cantilever VHF-C and over-gap VHF-O, according to: AASHTO LRFD standards ASTM D 3542 92 (2003) standards VHFC and VHFO are synchronously manufactured with high accuracy finger plates and accessories like bolts, rubber sheets-water prevention steel plates that bring profitability to new construction as well as inspection and maintenance work in service. VHFC and VHFO accommodate the medium movement to big movement and can be used for both straight and skew bridges. 2. PRODUCT CHARACTERISTICS Totally accommodate the medium and large longitudinal movements, and also vertical and transverse movement if any... Simple installation, maintenance and replacement, which allows to replace the individual finger plates in short period of time and for each lane. High loading resistance capacity, especially the impact load. Also available for skew bridges. Rubber seal system is designed to be totally water-tight and prevent dust and debris. Can be designed to compatible with different thicknesses of bridge decks. To ensure the long-lasting durability, VHF finger expansion joints are protected from corrosion with methods like: paint with 2-component epoxy coating, PU-based painting (Polyurethane).., zinc coating according to ASTM A123, and especially Al-Mg coating (Al 5% and Mg 95% ratio) which ensures the durability of 100 years. This method is proved by the brine spraying test in 6000 hours (dry-wet 8hour cycles) according to ASTM B117 standards.
1. PRODUCT OVERVIEW VHB Pot Bearings made by Vinh Hung Investment and Production Company Limited (Vinh Hung IP) are in compliance with standards (TCVN 10268: 2014, AASHTO LRFD: 2007 Section 18, ASTM D 5212 03, BS5400, EN1337, KS4420). VHB Pot Bearings are capable of withstanding high loads, displacements and rotation angles. This type of bearing is suitable for middle-range span structure, continuous bridge structure, etc. with a load capacity of up to 60000kN or above depending on projectsâ?? requirements. VHB pot bearings have a well-shaped structure, superior design, which are convenient for installation and maintenance during operation. 2. PRODUCT CHARACTERISTICS VHB pot bearings are comprised of 4 main parts: top plate, piston, pot plate and elastomeric pad. The elastomeric pad is placed inside of pot plate, under the pressure of the load, the elastomeric pad experiences the temporary deformation inside the pot plate volume, it is capable of withstanding the forces and allows the movement as well as rotation along the horizontal axis. Piston and pot plate work as the connecting parts between the structures. Besides, the plus guiding part can be designed to limit or allow the movements as required from the structures. Pot Bearings are divided into 2 main types: Fixed pot bearings and sliding pot bearings. Fixed pot bearings: The bearings only allows the head of structure to have rotary movement and transfer the pressure through a fixed point. Sliding pot bearings: This type of bearings includes Free sliding bearings and Guide sliding bearings, which allows the dead to have both rotary movements and unidirectional or multidirectional movements. To ensure the long-life durability, VHB pot bearings are protected against corrosion by the following methods: painting with two-component epoxy coat, PU-based painting (Polyurethane), hot-dip galvanization according to ASTM A123 standards and especially the Al-Mg coating spraying method (at the ratio of 5% Al and 95% Mg) which ensures the anti-corrosion durability of up to 100 years, this method is proved by the salt-spraying test in 6000 hours.
Vinh Hung specializes in manufacturing safety parapet for transport, civil and industrial works. Parapet products are manufactured according to the typical design of the company or according to customer drawings. Our Parapet products conform to the standards: BS EN 1317, TCVN 11823-13: 2017. All parts of the parapet are processed on modern machinery lines, high precision, in order to facilitate the installation and durability of the product. Parapets are the outermost of the bridge deck. Handrails are used to protect vehicles and people when a collision occurring and direct the vehicles on bridges. Parapets are mainly used steel, aluminum alloy, wood, reinforced concrete. Installed on the bridge concrete barrier, parapets donot only ensure traffic safety but also increase the aesthetics of the whole bridge. Parapets consist of column system, handrails and the middle bar which are hot-dip galvanized or electrostatic painting with multiple types, sizes and designs. Parapets aesthetics are required very high when designing, especially the bridges in the city area or in the important roads. All details of the parapet are processed on modern machinery lines with high precision and skilled workers to improve job efficiency as well as durable installation of products. Vinhhung parapets are hot-dip galvanized according to AASHTO M111 (ASTM A123) which would bring the maximum life for products. The high quality of Vinhhung parapets is affirmed when reaching out to the region with export orders to projects in Brunei
Commodity JOSS POWDER/ TABU POWDER/ LITESEA GLUTINOSA/ WOODEN GLUE POWDER Viscosity 36 cups : 780-1140 (100% Bark + 0% leaf) 24 cups : 570-650 (80% Bark + 20% leaf) 22 cups : 460-560 (60% Bark + 40% leaf) 20 cups : 350-450 (40% Bark + 60% leaf) 18 cups : 280-340 (30% Bark + 70% leaf) 16 cups : 160-270 (20% Bark + 80% leaf) Color light brown to deep brown Moisture 13% max Mesh size 80-90 min Packing 50kgs/PP bag 28 MTs/ cont 40 18 MTs/ cont 20 Place of Origin Vietnam Made from LITESEA GLUTINOSA tree and leaft, barks Usage making agarbatti/incense sticks, mosquito coils, for fish food, paint production Payment Term TT, DP AT SIGHT, LC AT SIGHT Production Time 7 days Transportation Time Depending on the distance between loading port and discharged port MOQ 18 tons (20ft FCL)
Name: Asbestos free fiber cement corrugated roofing sheet Original: Made in Vietnam Color: Nature gray or customized Profile: 177/51 or 130/35 Packing: 900 sheets/cont20 flc Less than 28 tons/cont20 flc Robust protector, corner protector PVC wrap With or without pallet Delivery: Sea port: Haiphong port, Vietnam Delivery time: around 14 days Our service: We are the leading manufacturer of fiber cement sheet Made in Vietnam We supply: - Non asbestos cement corrugated sheets - Color fiber cement board (painted color roofing and color-through roofing) - Fiber cement board - Accessories: roof ride accessory (male and female) and flat roof Payment terms: L/C or T/T Company information: Manufacturer: roofing sheet made in Vietnam Capacity production: 3 millions sheets per year Branch: Hai Duong province and Vinh Phuc province, Vietnam Head office: Hanoi, Vietnam
Hello my dear customer, Good day to you My name is Clover from Kego Company Limited which is a reliable supplier of Ground Calcium Carbonate. It is being increasingly used in many applications such as: paper, paint, plastics, ceramic, crystal, animal feed, medicine, food production. Follows are specification of our products for your information: Physical Analysis Chemical Analysis Whiteness: 98% min CaCO3: 99.46% min Brightness: 96% min Fe2CO3: 0.01% max Hardness: 3 Moh MgO: 0.02% max Moisture: 0.2% SiO2: 0.03% max Oil absorption: 23g/100g CaCO3 Al2O3: 0.02% max Density: 2.65-2.7g/cm3 pH: 8-9 We would like to draw your attention to the following terms of trade: Price: 60 USD/MT Min order quality: 50MT Supply quality: 5000 MT / month Packing: Packed in PP bag 25 kgs each, 26 ton/20DC Payment: L/C at sight or T/T with 50% as a deposit in advance Delivery: 5 days upon receipt of deposit or L/C from bank
Hello my dear customer, Good day to you My name is Clover from Kego Company Limited which is a reliable supplier of Ground Calcium Carbonate. It is being increasingly used in many applications such as: Paper, Paint, Plastics, Ceramic, Crystal, Animal feed, Medicine, Food production. Follows are specification of our products for your information: Physical Analysis Chemical Analysis Whiteness: 98% min CaCO3: 99.46% min Brightness: 96% min Fe2CO3: 0.01% max Hardness: 3 Moh MgO: 0.02% max Moisture: 0.2% SiO2: 0.03% max Oil absorption: 23g/100g CaCO3 Al2O3: 0.02% max Density: 2.65-2.7g/cm3 pH: 8-9 We would like to draw your attention to the following terms of trade: Price: 60 USD/MT Min order quality: 50MT Supply quality: 5000 MT / month Packing: Packed in PP bag 25 kgs each, 26 ton/20DC Payment: L/C at sight or T/T with 50% as a deposit in advance Delivery: 5 days upon receipt of deposit or L/C from bank
Hello my dear customer, Good day to you My name is Clover from Kego Company Limited which is a reliable supplier of Ground Calcium Carbonate. It is being increasingly used in many applications such as: Paper, Paint, Plastics, Ceramic, Crystal, Animal feed, Medicine, Food production. Follows are specification of our products for your information: Physical Analysis Chemical Analysis Whiteness: 98% min CaCO3: 99.46% min Brightness: 96% min Fe2CO3: 0.01% max Hardness: 3 Moh MgO: 0.02% max Moisture: 0.2% SiO2: 0.03% max Oil absorption: 23g/100g CaCO3 Al2O3: 0.02% max Density: 2.65-2.7g/cm3 pH: 8-9 We would like to draw your attention to the following terms of trade: Price: 60 USD/MT Min order quality: 50MT Supply quality: 5000 MT / month Packing: Packed in PP bag 25 kgs each, 26 ton/20DC Payment: L/C at sight or T/T with 50% as a deposit in advance Delivery: 5 days upon receipt of deposit or L/C from bank
We are Kego Company Limited based in Vietnam - a reliable supplier of Ground Calcium Carbonate (CaCO3). It is being increasingly used in many applications such as: paper, paint, plastics, ceramic, crystal, animal feed, medicine, food production. For your information, our CaCO3 powder is made of stones exploited form quarries in Yen Bai province, which is one of the highest sources comparing in Vietnam as well as in the world. We are sure that you will be satisfied with our products thanks to their high purity and brightness. We can guarantee that our products can meet strictest requirements for worldwide exports. Follows are specification of our products for your information: Physical Analysis Chemical Analysis Whiteness: 98% min CaCO3: 99.46% min Brightness: 96% min Fe2CO3: 0.01% max Hardness: 3 Moh MgO: 0.02% max Moisture: 0.2% SiO2: 0.03% max Oil absorption: 23g/100g CaCO3 Al2O3: 0.02% max Density: 2.65 â?? 2.7g/cm3 pH: 8-9 Min order quality: 50MT Supply quality: 5000 MT / month Packing: Packed in PP bag 25 kgs each, 26 ton/20DC Payment: L/C at sight or T/T with 50% as a deposit in advance Delivery: 5 days upon receipt of deposit or L/C from bank
We are Kego Company Limited based in Vietnam - a reliable supplier of Ground Calcium Carbonate (CaCO3). It is being increasingly used in many applications such as: paper, paint, plastics, ceramic, crystal, animal feed, medicine, food production. For your information, our CaCO3 powder is made of stones exploited form quarries in Yen Bai province, which is one of the highest sources comparing in Vietnam as well as in the world. We are sure that you will be satisfied with our products thanks to their high purity and brightness. We can guarantee that our products can meet strictest requirements for worldwide exports. Follows are specification of our products for your information: Physical Analysis Chemical Analysis Whiteness: 98% min CaCO3: 99.46% min Brightness: 96% min Fe2CO3: 0.01% max Hardness: 3 Moh MgO: 0.02% max Moisture: 0.2% SiO2: 0.03% max Oil absorption: 23g/100g CaCO3 Al2O3: 0.02% max Density: 2.65 â?? 2.7g/cm3 pH: 8-9
1. Product Overview VHB Pot Bearings made by Vinh Hung Investment and Production Company Limited (Vinh Hung IP) are in compliance with standards (TCVN 10268: 2014, AASHTO LRFD: 2007 Section 18, ASTM D 5212 03, BS5400, EN1337, KS4420). VHB Pot Bearings are capable of withstanding high loads, displacements and rotation angles. This type of bearing is suitable for middle-range span structure, continuous bridge structure, etc. with a load capacity of up to 60000kN or above depending on projects requirements. VHB pot bearings have a well-shaped structure, superior design, which are convenient for installation and maintenance during operation. 2. PRODUCT CHARACTERISTICS VHB pot bearings are comprised of 4 main parts: top plate, piston, pot plate and elastomeric pad. The elastomeric pad is placed inside of pot plate, under the pressure of the load, the elastomeric pad experiences the temporary deformation inside the pot plate volume, it is capable of withstanding the forces and allows the movement as well as rotation along the horizontal axis. Piston and pot plate work as the connecting parts between the structures. Besides, the plus guiding part can be designed to limit or allow the movements as required from the structures. Pot Bearings are divided into 2 main types: Fixed pot bearings and sliding pot bearings. Fixed pot bearings: The bearings only allows the head of structure to have rotary movement and transfer the pressure through a fixed point. Sliding pot bearings: This type of bearings includes Free sliding bearings and Guide sliding bearings, which allows the dead to have both rotary movements and unidirectional or multidirectional movements. To ensure the long-life durability, VHB pot bearings are protected against corrosion by the following methods: painting with two-component epoxy coat, PU-based painting (Polyurethane), hot-dip galvanization according to ASTM A123 standards and especially the Al-Mg coating spraying method (at the ratio of 5% Al and 95% Mg) which ensures the anti-corrosion durability of up to 100 years, this method is proved by the salt-spraying test in 6000 hours. 3. PRODUCT INFORMATION Based on the characteristics, VHB pot bearings are divided into 3 types:
1. PRODUCT OVERVIEW VHF finger expansion joint made by Vinh Hung Investment and Production Co., Ltd (VinhHung IP), includes 2 types: Cantilever VHF-C and over-gap VHF-O, according to: AASHTO LRFD standards ASTM D354292 (2003) standards VHFC and VHFO are integrally manufactured with high accuracy finger plates and accessories such as bolts, rubber sheet/water prevention steel plates which help facilitate new construction and installation as well as inspection and maintenance works in service. VHFC and VHFO accommodate to medium movement to big movement and can be used for both straight and skew bridges. 2. PRODUCT CHARACTERISTICS Totally accommodate to medium and large longitudinal movements, and also vertical and transversal movement if any. Simple installation, maintenance and replacement, which allows to replace individual finger plates in short period of time and for each lane. High loading resistance capacity, especially the moving load. Also available for skew bridges. Rubber seal system is designed to be totally water-tight and prevent dust and debris. Can be designed to be compatible with different thicknesses of bridge decks. To ensure the long-lasting durability, VHF finger expansion joints are protected from corrosion with methods such as: 2-component epoxy coating, PUbased painting (Polyurethane), hot dip galvanization according to ASTM A123 standards and especially the Al Mg spraying method (at the ratio of 5% Al and 95% Mg) which ensures anti-corrosion durability of up to 100 years, proven by salt-spraying test in 6000 hours (8-hour dry-wet cycle repetition) under ASTM B117 standards. DIMENSIONS OF FINGER EXPANSION JOINT VHF-C15 ~ VHF-C30 (WITHOUT BOLT) MODEL DISPLACEMENT d A D C H min max min max VHF-C15 15 22 190 205 25 40 300 150 VHF-C20 20 22 230 250 30 50 300 150 VHF-C30 30 25 245 275 30 60 300 150
Vinh Hung specializes in manufacturing safety parapet for transport, civil and industrial works. Parapet products are manufactured according to the typical design of the company or according to customer drawings. Our Parapet products conform to the standards: BS EN 1317, TCVN 11823-13: 2017. All parts of the parapet are processed on modern machinery lines, high precision, in order to facilitate the installation and durability of the product. Parapets are the outermost of the bridge deck. Handrails are used to protect vehicles and people when a collision occurring and direct the vehicles on bridges. Parapets are mainly used steel, aluminum alloy, wood, reinforced concrete. Installed on the bridge concrete barrier, parapets donâ??t only ensure traffic safety but also increase the aesthetics of the whole bridge. Parapets consist of column system, handrails and the middle bar which are hot-dip galvanized or electrostatic painting with multiple types, sizes and designs. Parapets aesthetics are required very high when designing, especially the bridges in the city area or in the important roads. All details of the parapet are processed on modern machinery lines with high precision and skilled workers to improve job efficiency as well as the durable installation of products. Vinhhung parapets are hot-dip galvanized according to AASHTO M111 (ASTM A123) which would bring the maximum life for products. The high quality of Vinhhung parapets is affirmed when reaching out to the region with export orders to projects in Bruneiâ?¦
VHB pot bearing made by Vinh Hung Investment and Production Company Limited (Vinh Hung IP) are in compliance with standards (TCVN 10268:2014, AASHTO LRFD: 2007, Section 18, ASTM D521203, BS5400, EN1337, KS4420). VHB pot bearing is capable of withstanding high loads, displacements and wide angle rotation. This type of bearing is suitable for middle-range span structure, continuous bridge structure etc. with a load capacity of 60000kN or above depending on projects requirements. VHB pot bearing has well-shaped structure, superior design, which is convenient for installation and maintenance during operation PRODUCT CHARACTERISTICS VHB pot bearing is comprised of 4 main parts: top plate, piston, pot plate and elastomeric pad. The elastomeric pad is placed inside of pot plate, under thepressure of the load, the elastomeric pad experiences the temporary deformation inside the pot plate volume, it is capable of withstanding the forces and allows the movement as well as rotation along horizontal axis. Piston and pot plate work as the connecting parts between the structures. Besides, the plus guiding bar can be designed to limit or allow the movements as required from the structures. Pot bearing is divided into 2 main types: Fixed pot bearing and sliding pot bearing. Fixed pot bearing: The bearing only allows the head of structure to have rotary movement and transfers the pressure through a fixed point. Sliding pot bearing: This type of bearing, including free sliding bearing and guided sliding bearing, allows the head to have both rotary movements and transversally or multidirectional movements. To ensure the long-life durability, VHB pot bearing is protected against corrosion by the following methods: two-component epoxy coat, PU-based painting (Polyurethane), hot dip galvanization according to ASTM A123 standards and especially the Al â?? Mg spraying method (at the ratio of 5% Al and 95% Mg) which ensures the anti-corrosion durability of up to 100 years, proven by salt-spraying test in 6000 hours (8-hour dry-wet cycle repetition) under ASTM B117 standards.
1. PRODUCT OVERVIEW VHB pot bearing made by Vinh Hung Investment and Production Company Limited (Vinh Hung IP) are in compliance with standards (TCVN 10268:2014, AASHTO LRFD: 2007, Section 18, ASTM D5212â??03, BS5400, EN1337, KS4420). VHB pot bearing is capable of withstanding high loads, displacements and wide angle rotation. This type of bearing is suitable for middle-range span structure, continuous bridge structure etc. with a load capacity of 60000kN or above depending on projects requirements. VHB pot bearing has well-shaped structure, superior design, which is convenient for installation and maintenance during operation PRODUCT CHARACTERISTICS VHB pot bearing is comprised of 4 main parts: top plate, piston, pot plate and elastomeric pad. The elastomeric pad is placed inside of pot plate, under the pressure of the load, the elastomeric pad experiences the temporary deformation inside the pot plate volume, it is capable of withstanding the forces and allows the movement as well as rotation along horizontal axis. Piston and pot plate work as the connecting parts between the structures. Besides, the plus guiding bar can be designed to limit or allow the movements as required from the structures. Pot bearing is divided into 2 main types: Fixed pot bearing and sliding pot bearing. Fixed pot bearing: The bearing only allows the head of structure to have rotary movement and transfers the pressure through a fixed point. Sliding pot bearing: This type of bearing, including free sliding bearing and guided sliding bearing, allows the head to have both rotary movements and transversally or multidirectional movements. To ensure the long-life durability, VHB pot bearing is protected against corrosion by the following methods two-component epoxy coat, PU-based painting (Polyurethane), hot dip galvanization according to ASTM A123 standards and especially the Al Mg spraying method (at the ratio of 5% Al and 95% Mg) which ensures the anti-corrosion durability of up to 100 years, proven by salt-spraying test in 6000 hours (8-hour dry-wet cycle repetition) under ASTM B117
Vinh Hung specializes in manufacturing safety parapet for transport, civil and industrial works. Parapet products are manufactured according to the typical design of the company or according to customer drawings. Our Parapet products conform to the standards: BS EN 1317, TCVN 11823-13: 2017. All parts of the parapet are processed on modern machinery lines, high precision, in order to facilitate the installation and durability of the product. Parapets are the outermost of the bridge deck. Handrails are used to protect vehicles and people when a collision occurring and direct the vehicles on bridges. Parapets are mainly used steel, aluminum alloy, wood, reinforced concrete. Installed on the bridge concrete barrier, parapets donot only ensure traffic safety but also increase the aesthetics of the whole bridge. Parapets consist of column system, handrails and the middle bar which are hot-dip galvanized or electrostatic painting with multiple types, sizes and designs. Parapets aesthetics are required very high when designing, especially the bridges in the city area or in the important roads. All details of the parapet are processed on modern machinery lines with high precision and skilled workers to improve job efficiency as well as durable installation of products. Vinh Hung parapets are hot-dip galvanized according to AASHTO M111 (ASTM A123) which would bring the maximum life for products. The high quality of Vinh Hung parapets is affirmed when reaching out to the region with export orders to projects in Brunei.
1. Product Overview VHC spherical Bearings/ Bridge bearing manufactured by Vinh Hung Investment and Production Company Limited (Vinh Hung IP) are capable of withstanding the high loads and movements suitable for structures requiring the rotary angle equal or bigger than 0.015 rad in all directions. VHC spherical bearings are designed and manufactured according to current standards such as: TCVN 11823, AASHTO LRFD, ASTM D5977, EN 1337, 2. PRODUCT CHARACTERISTICS VHC spherical bearings/ bridge bearing possesses a bottom plate (6) which has a PTFE sliding plate (4) on it is upper curved surface. A convex calotte (5) is placed on top of this, which, thanks to it is polished hard-chromium plated surface, can slide within the lower part with low friction, thus facilitating rotations about every axis. A second sliding plate of PTFE (4) is recessed into the upper surface of the calotte. Together with the upper plate (2) above it, this accommodates longitudinal and/or transverse sliding movements of the superstructure, if required. To reduce sliding resistance to a minimum, the lower surface of the top plate features a polished stainless steel sheet. In the case of bearings which should allow movement along one axis only, the direction of movement is controlled by guiding bars (3). In the case of fixed bearings, the top plate does not have a stainless steel sheet. The bearing is connected to the superstructure and the substructure by means of anchor dowels (1) or threaded sleeves (depending on design), or alternatively by means of separate anchor plates with shear studs. To ensure the long-life durability, VHC spherical bearings are protected against corrosion by the following methods: coating with two-component epoxy, PU-based painting (Polyurethane), hot-dip galvanization according to ASTM A123 standards and especially the Al-Mg spray coating method (at the ratio of 5% Al and 95% Mg) which ensure the anti-corrosion durability of up to 100 years, this method is proved by the salt-spraying test in 6000 hours (8-hour dry-wet cycle) according to ASTM B117
1. Product Overview VHC spherical Bearings/ Bridge bearing manufactured by Vinh Hung Investment and Production Company Limited (Vinh Hung IP) are capable of withstanding the high loads and movements suitable for structures requiring the rotary angle equal or bigger than 0.015 rad in all directions. VHC spherical bearings are designed and manufactured according to current standards such as:TCVN 11823, AASHTO LRFD, ASTM D5977, EN 1337, 2. Product Characteristics VHC spherical bearings/ bridge bearing possesses a bottom plate (6) which has a PTFE sliding plate (4) on it is upper curved surface. A convex calotte (5) is placed on top of this, which, thanks to it is polished hard-chromium plated surface, can slide within the lower part with low friction, thus facilitating rotations about every axis. A second sliding plate of PTFE (4) is recessed into the upper surface of the calotte. Together with the upper plate (2) above it, this accommodates longitudinal and/or transverse sliding movements of the superstructure, if required. To reduce sliding resistance to a minimum, the lower surface of the top plate features a polished stainless steel sheet. In the case of bearings which should allow movement along one axis only, the direction of movement is controlled by guiding bars (3). In the case of fixed bearings, the top plate does not have a stainless steel sheet. The bearing is connected to the superstructure and the substructure by means of anchor dowels (1) or threaded sleeves (depending on design), or alternatively by means of separate anchor plates with shear studs. To ensure the long-life durability, VHC spherical bearings are protected against corrosion by the following methods: coating with two-component epoxy, PU-based painting (Polyurethane), hot-dip galvanization according to ASTM A123 standards and especially the Al-Mg spray coating method (at the ratio of 5% Al and 95% Mg) which ensure the anti-corrosion durability of up to 100 years, this method is proved by the salt-spraying test in 6000 hours (8-hour dry-wet cycle) according to ASTM B117
1. PRODUCT OVERVIEW VHC spherical Bearings/ Bridge bearing manufactured by Vinh Hung Investment and Production Company Limited (Vinh Hung IP) are capable of withstanding the high loads and movements suitable for structures requiring the rotary angle equal or bigger than 0.015 rad in all directions. VHC spherical bearings are designed and manufactured according to current standards such as: TCVN 11823, AASHTO LRFD, ASTM D5977, EN 1337, â?¦ 2. PRODUCT CHARACTERISTICS VHC spherical bearings/ bridge bearing possesses a bottom plate (6) which has a PTFE sliding plate (4) on it is upper curved surface. A convex calotte (5) is placed on top of this, which, thanks to it is polished hard-chromium plated surface, can slide within the lower part with low friction, thus facilitating rotations about every axis. A second sliding plate of PTFE (4) is recessed into the upper surface of the calotte. Together with the upper plate (2) above it, this accommodates longitudinal and/or transverse sliding movements of the superstructure, if required. To reduce sliding resistance to a minimum, the lower surface of the top plate features a polished stainless steel sheet. In the case of bearings which should allow movement along one axis only, the direction of movement is controlled by guiding bars (3). In the case of fixed bearings, the top plate does not have a stainless steel sheet. The bearing is connected to the superstructure and the substructure by means of anchor dowels (1) or threaded sleeves (depending on design), or alternatively by means of separate anchor plates with shear studs. To ensure the long-life durability, VHC spherical bearings are protected against corrosion by the following methods: coating with two-component epoxy, PU-based painting (Polyurethane), hot-dip galvanization according to ASTM A123 standards and especially the Al-Mg spray coating method (at the ratio of 5% Al and 95% Mg) which ensure the anti-corrosion durability of up to 100 years, this method is proved by the salt-spraying test in 6000 hours (8-hour dry-wet cycle) according to ASTM B117
1. PRODUCT OVERVIEW VHC spherical Bearings/ Bridge bearing manufactured by Vinh Hung Investment and Production Company Limited (Vinh Hung IP) are capable of withstanding the high loads and movements suitable for structures requiring the rotary angle equal or bigger than 0.015 rad in all directions. VHC spherical bearings are designed and manufactured according to current standards such as:� TCVN 11823, AASHTO LRFD, ASTM D5977, EN 1337, 2.PRODUCT CHARACTERISTICS VHC spherical bearings/ bridge bearing possesses a bottom plate (6) which has a PTFE sliding plate (4) on it is upper curved surface. A convex calotte (5) is placed on top of this, which, thanks to it is polished hard-chromium plated surface, can slide within the lower part with low friction, thus facilitating rotations about every axis. A second sliding plate of PTFE (4) is recessed into the upper surface of the calotte. Together with the upper plate (2) above it, this accommodates longitudinal and/or transverse sliding movements of the superstructure, if required. To reduce sliding resistance to a minimum, the lower surface of the top plate features a polished stainless steel sheet. In the case of bearings which should allow movement along one axis only, the direction of movement is controlled by guiding bars (3). In the case of fixed bearings, the top plate does not have a stainless steel sheet. The bearing is connected to the superstructure and the substructure by means of anchor dowels (1) or threaded sleeves (depending on design), or alternatively by means of separate anchor plates with shear studs. To ensure the long-life durability, VHC spherical bearings are protected against corrosion by the following methods: coating with two-component epoxy, PU-based painting (Polyurethane), hot-dip galvanization according to ASTM A123 standards and especially the Al-Mg spray coating method (at the ratio of 5% Al and 95% Mg) which ensure the anti-corrosion durability of up to 100 years, this method is proved by the salt-spraying test in 6000 hours (8-hour dry-wet cycle) according to ASTM B117
