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At a carnival this tiny girl was climbing the wall. Her family was on the ground encouraging her to keep going. She made it all the way to the top. Her family was very proud. The girl was so small that when she looked up, her helmet would fall back and hang behind her.
It’s not exaggerated that a mini quad-copter could be as exquisite as possible! We choose the beloved mini quad-copter out of personal preference. For young guys scouting for individually, maybe a quad-copter like WLtoys V676 painted with American flag, UFO characters or Olympics rings are much i...
www.toptoyspace.com/2014/12/04/mini-quad-copter-wltoys-v6...
The season of love is a time for affection, intimacy, and joy. It is often associated with Valentine's Day, a holiday that celebrates romantic love, but love can be expressed and experienced in many different forms, including between friends, family members, and significant others. During this season, people often exchange gifts, cards, and messages of love and appreciation, and spend quality time with their loved ones. Whether it's through grand gestures or small acts of kindness, the season of love is a time to express love and affection to those who are important in our lives, and to cherish the love that we have.
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Join Snoopy and Woodstock from The Peanuts Movie in cheering on the Carolina Panthers today! This adorable t-shirt captures the spirit of fun and fandom, making it the perfect choice for game day.
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Source: teeviews.com/carolina-panthers/
www.cheeron-coupler.com/products/mbt-coupler/
MBT (Mechanically Bolted Tension) coupler is a mechanical connector used in reinforced concrete construction to join reinforcing steel bars (rebar) end-to-end without requiring threading or rotation of the bars.
MBT coupler is designed for efficiency, reliability, and structural integrity, particularly in situations where reinforcing couplers is already fixed in place or space is limited, making traditional lap splicing or hydraulic pressing impractical.
MBT Coupler Features
High-Grade Materials
S45C/40Cr steel ensures superior strength and corrosion resistance.
Seismic Performance
MBT coupler is fatigue-resistant for high-performance in seismic zones.
Certified Compliance
Meets ISO 15835, 9001, and CCC standards.
Broad Applications
MBT coupler is ideal for precast concrete, bridges, tunnels, and industrial structures.
www.cheeron-coupler.com/products/combination-anchor/
The CHEERON combination anchor is composed of a rock anchor bolt body connected to the reinforcing bars through a connecting sleeve. Based on the common anchor rods, an extended design is made to solve the transportation and usage problems caused by overly long anchor rods in practical applications. This combined hollow anchor bolt is based on the advantages of hollow grouting anchor bolts, self-drilling hollow anchor bolts and expansion shell hollow anchor bolts, and can achieve good economic benefits and high construction efficiency in practical applications.
Combination Anchor Features
An anchor bolt composed of a hollow anchor bolt body, reinforcing bars, connecting sleeves, washers, nuts, stoppers, anchor heads, exhaust pipes, etc.
Combination Anchor Specifications
The connection between the connecting sleeve and the hollow anchor bolt body and the reinforcing bars adopts a straight thread mechanical connection, and a slurry outlet is provided on the connecting sleeve.
The rods can be cut on site and extended by connecting with sleeves. The length of the anchor rods can reach 20 meters or more.
CHEERON offers various types of anchor bolt sleeves (such as hollow grouting anchor bolts, self-drilling rock anchor bolts, expansion shell rock anchor bolts, etc.), and the connecting sleeves have the same designed tensile strength as the anchor bolt body.
www.cheeron-coupler.com/products/crimping-rebar-coupler/
A type of rebar coupler without internal threads. When connecting, the crimping rebar coupler is placed over both ends of the joint of two reinforcing bars and placed in a dedicated pressure device. According to the specified number of pressing passes and indentations, the coupler undergoes plastic deformation through pressure, thereby connecting the two reinforcing bars together.
Crimping Rebar Coupler Features
Improving work efficiency: Cold extrusion sleeves have low requirements for construction conditions, such as when the steel bars are fixed and cannot be rotated, or when connecting steel bar cages, etc.
The connection joint has high strength: The extruded connection sleeve is made of high-quality 45c/40cr carbon steel, which has excellent seismic performance.
Strong applicability: Suitable for various weather conditions and different steel bar diameters (16-40mm), with stable performance.
Safety and environmental protection: It does not produce sparks or toxic and harmful gases, avoids air pollution, and minimizes the possibility of fire to the greatest extent.
Application of Crimping Rebar Coupler
Crimping Rebar Coupler are more suitable for specific projects that require high seismic resistance and precise alignment (such as nuclear power plants, hospitals), large-diameter steel bars (≥25mm), or parts subjected to dynamic loads.
It is applicable to environments with high fire protection requirements for tunnels, such as the circumferential main reinforcement connection in tunnel reinforced concrete linings.
Projects of Crimping Rebar Coupler
Hangzhou Bay Cross-sea Bridge
Mechanical cold extrusion joints are used between the main ribs and the connecting ribs of the pier cap. Before use, the joint sleeves are coated with epoxy resin as per regulations. After the extrusion connection is completed, the damaged parts on the surface of the sleeves also need to be repaired.
Wuxi Taihu Tunnel
The cold extrusion construction process of the secondary lining steel sleeve for tunnels significantly reduces the electricity consumption on the construction site, greatly saves human resources, and compared with lap welding, it greatly saves steel.
Sanwan Nuclear Power Station
The CHEERON cold extruded sleeve connection can achieve or even exceed the strength of the steel bar base material, fully meeting the seismic design requirements of nuclear power plant structures.
www.cheeron-coupler.com/products/mechanical-rock-bolt/
The mechanical rock bolt is a new type of prestressed anchor bolt ingeniously combined with rock anchor bolts and end expansion shells. After the installation of the expansion shell grouting anchor bolt, the prestress is immediately provided by the opening of the steel expansion shell anchor fasteners, which can effectively control the loosening and deformation of the surrounding rock in a timely manner and promote the formation of a compressive stress ring in the surrounding rock within the anchoring range, further enhancing the reinforcement effect of the anchor bolt on the surrounding rock and the stability of the project.
Mechanical Rock Bolt Features
Composition of anchor bolts
The expansion shell type prestressed hollow grouting anchor bolt should be composed of a hollow rod body, steel expansion shell anchor fasteners, grouting plugs, grouting pipes, spacers and hexagonal nuts.
Steel expansion shell anchor head
The expansion shell anchor head adopts a mechanical structure. Through tensioning and locking, it can immediately generate support force, quickly clamp the rock mass, and help form a pressure arch, thereby effectively suppressing the loosening of the surrounding rock.
Mechanical Rock Bolt Specifications
The organic combination of active support and bonded passive support
This anchor bolt system provides an initial prestress of 60kN to 150kN through tensioning in the early stage, forming active support, and the single-anchor bearing capacity of the anchor bolt is ≤200KN ; In the later stage, it was transformed into a passive support mechanism of full-length anchoring through full-length grouting bonding. This combination method not only allows the surrounding rock to undergo moderate deformation but also fully exploits its self-supporting capacity, providing a reliable technical guarantee for the stability of the surrounding rock.
Installation and Usage
The rods can be inserted first, and then the prestress is applied before grouting. The grout flows from the bottom end to the head of the anchor rod through the hollow steel pipe, which can ensure the grouting is full.
Expansion shell rock bolt can be used in construction areas with fractured rock masses
The prestressed expansion shell grouting anchor bolt can effectively maintain the overall stability of the broken rock layer after excavation by applying sufficient prestress and full-length bonding support, avoiding instability or even collapse of the surrounding rock, and has good anchoring effect and durability.
www.cheeron-coupler.com/products/grout-coupler/
Grout couplers, also known as grouting sleeves or grout splice coupler, are high-performance mechanical connectors essential for rebar butt splicing in modern construction. Each coupler is precisely designed with a grout inlet port and a vent port to ensure a complete and solid connection.
Grout coupler range includes both semi-grouted sleeves and fully-grouted sleeves, offering flexible solutions for various concrete structural applications.
The principle of operation relies on a specialized grout mixture which, upon hardening, integrates the rebar ends and the sleeve, achieving seamless load transfer and forming a structural continuum. Independent tensile tests have consistently shown that CHEERON grout couplers provide a connection strength higher than the parent material strength of the rebar itself. This exceptional performance makes them ideal for projects demanding superior seismic resistance and maximum structural integrity.
Grout Coupler Types
TYPE 1: Semi-grouting type
One end is connected by sleeve grouting, and the other end is connected to the grouting sleeve of the reinforcing bar by mechanical connection.
TYPE 2: Fully grouting type
A grouting sleeve with both ends connected by sleeve grouting.
Grout Coupler Specifications
Grout Coupler Advantage:
Semi-grouting sleeve (joint): In the component factory, grout coupler is necessary to process the steel bar threads
Fully grouting sleeve (joint): No need to process the steel bar threads in the component factory, making construction more convenient.
Main Types of Load-Bearing Rebar Connections in Precast Elements:
Grout coupler is applicable for splicing HRB and TMT rebars with diameters ranging from 12 mm to 40 mm in prefabricated composite concrete structures.
The applications specifically include the connections for:
Longitudinal load-bearing reinforcement in precast columns and precast beams (Precast Frame Columns and Beams).
Vertical reinforcement in precast shear walls (Precast Shear Walls).
Grouted splice coupler can also be utilized for splicing vertical and horizontal rebar in Cast-in-Place (CIP) structures during the refurbishment or reconstruction of existing buildings (Existing Structure Retrofitting).
For the splicing of load-bearing rebar in vertical precast elements, either semi-grouted sleeves or fully-grouted sleeves may be utilized.
For the connection of longitudinal load-bearing reinforcement in horizontal precast elements at the Cast-in-Place (CIP) closure strip, fully-grouted sleeves can be employed.
Projects of Grout Coupler
Taihu Tunnel
Outstanding seismic performance, through the dual effects of chemical bonding and mechanical interlocking between the grouting material and the steel bars, achieves an energy dissipation capacity 1.5 times that of traditional welded joints.
Beijing-shanghai High-Speed Railway
Grout coupler service life reaches 100 years, which is three times that of ordinary welded joints, ensuring long-term durability.
Wuhan Greenland Center
Through the standardized production of prefabricated components and precise on-site assembly, construction becomes more convenient.
www.cheeron-coupler.com/products/headed-bar/
Headed Bar, also widely known as threaded rebar anchor plates, represent an innovative and highly efficient method of mechanical anchorage in modern concrete structures. This technology offers significant benefits compared to traditional rebar anchorage techniques. Specifically, the adoption of this mechanical rebar anchorage system within complex joints dramatically simplifies rebar detailing and installation on-site. By replacing the cumbersome hooked bars, it effectively mitigates rebar congestion and the associated difficulties in tying densely packed steel. Furthermore, the use of anchor plates inherently enhances the structural performance of the connection node and, critically, improves the quality of concrete pouring and consolidation, ensuring better long-term durability and structural integrity.
Headed Bar Types
Type 1:
Hexagonal headed bar: An anchor plate that combines the pad (pressure-bearing plate) and the nut (connection end) into one and is connected to the top of the reinforcing bar by a straight thread.
Type 2:
Circular headed coupler (Terminator): This system involves connecting the circular headed coupler (or terminator coupler) to the straight threaded end of the rebar.
Headed Bar Advantage:
Compared with the traditional steel bar anchoring technology, the application of mechanical steel bar anchoring technology at complex nodes can simplify the construction of steel bar engineering, reduce the difficulty of binding dense and congested steel bars, improve the load-bearing performance of nodes, and enhance the quality of concrete pouring.
Headed bars can be produced in factories and supplied commercially, replacing the traditional bending steel bar anchoring and straight steel bar anchoring, which can save steel and facilitate construction. For example:
The headed bar reinforcement is used to replace the traditional bent reinforcement for the beam-column joints of the frame structure.
It is used as a shear reinforcement for simply supported beam supports, beams or slabs, replacing the anchoring of traditional bent and straight bars.
Application of Headed Bar
Headed bars have a wide range of applications. Civil engineering and construction projects, including buildings, bridges, water conservancy and hydropower, nuclear power plants, subways, etc., all require a large amount of steel bars and need steel bar anchoring technology.
Projects of Rebar Anchor Plate
Hangzhou Bay Cross-sea Bridge
Hangzhou Bay Cross-sea Bridge
The anchoring operation time for a single reinforcing bar is no more than 3 minutes (saving 50% of the working hours compared to hook binding), and it can be prefabricated for construction (such as completing the installation of the anchoring plate before the overall hoisting of the anchor reinforcing bar cage).
Shanghai Jinmao Tower
Mechanical anchoring has no heat-affected zone for welding. In areas frequently hit by typhoons, the anchor plate nodes have no slip deformation after 2 million cycle load tests, which is superior to welded anchoring.
Sanwan Nuclear Power Station
Instead of the traditional hook anchoring, the cross-interference in the densely reinforced steel area is reduced. The transverse connecting bars use anchor plates instead of hooks to solve the problem of steel bar collision in the cast-in-place section.