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
The auto punch bellow forming machine is divided into several ranges: DN100-1200mm, DN100-1600mm, DN1500-5000, customized. Auto expansion joint machine adopts our patent technology of rotating salver and the cones retract system; FUGE bellow forming machines use Siemens PLC and German Balluff sensors and servo motors to be more precise; the punch bellow forming machine owns 3 working positions and can form 3 bellows at the same time. The mechanical expansion joint forming machine is powerful enough for multiple layers of bellow and different materials, such as SS, Inconel.
1. PRODUCT OVERVIEW VHM joint made by VinhHung Investment and Production Co., Ltd (VinhHung IP) are composed of multiple steel rails in combination with supporting beams and special structural accessories. VHM - modular expansion joint accomodates to longitudinal movement from 160mm and above. The expansion joints are connected to the bridge deck through the anchoring reinforced system. Rubber seal serves as drainage trough and protect the system from dust and debris. 2. PRODUCT CHARACTERISTICS : Design and manufacture according to AASHTOLRFD, TCVN 11823 â?? 2017 standards. : Allow longitudinal movement of up to 720mm, vertical and horizontal movements are in accordance with AASHTO standards. : Be able to withstand high load with stable and durable structure. : Ensure level and smooth surface for traffic. : Each center beam is fixed with an independent supporting bar, which satisfies the requirement of the fatigue limit C (AASHTO 2007). : Protected with high anti-corrosive coating layer and treated with anti-slip coating technology. : Totally watertight. 3. TECHNICAL PARAMETERS. MODEL DISPLACEMENT MM A C MM D H MM MM MM MIN MAX MIN MAX VHM - 160 160 160 320 360 40 200 350 VHM - 240 240 240 480 420 40 280 350 VHM - 320 320 320 640 500 50 370 350 VHM - 400 400 400 800 580 50 450 350 VHM - 480 480 480 960 640 60 540 350 VHM - 560 560 560 1120 700 60 620 350 VHM - 640 640 640 1280 800 60 700 350 VHM - 720 720 720 1440 880 60 780 350 4. PROPERTIES OF SEAL A. BEARING AND SPRING NO. ITEMS UNIT REQUIREMENT STANDARD 1 Hardness Point 60 �± 5 ASTM D2240 2 Tensile strength, min Mpa 15.5 ASTM D412 3 Elongation at break, min % 350 ASTM D412 4 Deformation in Ozone, (content of Ozone in the air: 100pphm, 20%. Deformation at 38�°C x 70h No crack ASTM D1149 5 Heat resistance (100�°C x 70h) Change of hardness, max Point 0~15 ASTM D573 Change of tensile strength, max % -15 Change of elongation, max % -40
The auto punch bellow forming machine is divided into several ranges: DN100-1200mm, DN100-1600mm, DN1500-5000, customized. Auto expansion joint machine adopts our patent technology of rotating salver and the cones retract system; FUGE bellow forming machines use Siemens PLC and German Balluff sensors and servo motors to be more precise; the punch bellow forming machine owns 3 working positions and can form 3 bellows at the same time. The mechanical expansion joint forming machine is powerful enough for multiple layers of bellow and different materials, such as SS, Inconel.
1.Range: DN100-1200mm customized 2.Patent : Auto rotating salver and auto cone retract system 3.Siemens control system and HMI input screen 4.It contains 3 working position and can form 3 bellows at the same time. 5.Its power enough to form various thick SS and Inconel alloy It can form different height and pitch automatically.
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Supplier: Duct, octogonal type expansion joint, dust catcher, pulling device
The auto punch bellow forming machine is divided into several ranges: DN100-1200mm, DN100-1600mm, DN1500-5000, customized. Auto expansion joint machine adopts our patent technology of rotating salver and the cones retract system; FUGE bellow forming machines use Siemens PLC and German Balluff sensors and servo motors to be more precise; the punch bellow forming machine owns 3 working positions and can form 3 bellows at the same time. The mechanical expansion joint forming machine is powerful enough for multiple layers of bellow and different materials, such as SS, Inconel.
