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SJ-500
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Product Description
As a premier manufacturer and direct supplier of structural crossing solutions, we present the SJ-500 Modular Steel Truss Bridge. Engineered for rapid deployment, this robust infrastructure asset minimizes site preparation and accelerates project timelines while delivering uncompromising stability.
Standardized 3000mm × 9000mm modular configuration for seamless integration
Constructed from premium Q355B structural steel for maximum rigidity
Supports 15 to 20 tons of safe load capacity for heavy transit
Designed for rapid, heavy-machinery-free assembly by small construction teams
The SJ-500 Modular Steel Truss Bridge represents the pinnacle of modern structural engineering, designed specifically to address the rigorous demands of temporary and permanent crossing projects. When you stand upon the deck of this meticulously crafted structure, you immediately sense the unyielding rigidity of the premium Q355B steel. The tactile finish of the anti-corrosion coating speaks to its enduring resilience against harsh weather, biting winds, and relentless moisture.
As heavy engineering vehicles and fully loaded small trucks roll across its surface, the bridge absorbs the kinetic energy with a reassuring solidity, eliminating the unsettling vibrations often found in lesser structures. Every pin, chord, and transom is precision-machined to interlock seamlessly, creating a visually striking geometric truss pattern that exudes industrial strength. This is not merely a crossing; it is a meticulously engineered asset that transforms impassable terrain into a secure, high-efficiency transit corridor, ensuring your critical operations proceed without hesitation.
Parameter | Specification Details |
|---|---|
Product Name | SJ-500 Modular Steel Truss Bridge |
Model | SJ-500 |
Dimension (mm) | 3000mm × 9000mm (3m × 9m) |
Material | Q355B High-quality Structural Steel |
Safe Load Capacity | 15–20 Tons |
Surface Treatment | Advanced Anti-corrosion Treatment |
Certification | ISO9001 |
Main Components | Bailey panels, chords, frames, deck panels, pins, bolts, bridge bearings, transoms, sway bracing, curb, gap plate, handrail |
Application | Small span temporary bridges, construction site access, rural & farmland traffic, emergency & rescue use, landscaping & park paths |
Deploying infrastructure in demanding environments requires solutions that prioritize both structural integrity and operational efficiency. The SJ-500 bridge system is engineered to eliminate common bottlenecks associated with traditional bridge construction, offering a streamlined approach to crossing implementation. By focusing on intelligent modularity and uncompromising material quality, this system delivers tangible improvements to your project's overall timeline and budget.
Accelerated Deployment: The intelligent pin-and-bolt connection system drastically reduces the time required for on-site erection, allowing your transit routes to become operational in a fraction of the traditional timeframe.
Exceptional Return on Investment: Thanks to its high reusability factor, the structural components can be dismantled, transported, and reassembled across multiple project sites, amortizing the initial acquisition cost over years of continuous service.
Minimal Heavy Equipment Dependency: The lightweight yet formidable individual panels are designed to be manipulated by smaller crews and standard lorry-mounted cranes, freeing up your heavy lifting assets for other critical tasks.
Weather-Defying Resilience: Treated with advanced anti-corrosion finishes, the structural integrity remains uncompromised even when exposed to torrential rains, high humidity, and abrasive environmental conditions.
The foundation of any reliable crossing lies in the uncompromising quality of its core materials. We utilize exclusively premium Q355B high-quality structural steel, renowned for its exceptional yield strength and fracture toughness. This meticulous material selection ensures that the bridge does not merely support weight, but actively resists metal fatigue over thousands of crossing cycles, providing peace of mind for high-stakes engineering operations.
High-Yield Q355B Steel: Delivers superior rigidity and structural stability, preventing deck sagging and maintaining a perfectly level transit surface under intense mechanical stress.
15-20 Ton Safe Load Capacity: Expertly calibrated to comfortably support the dynamic weight of small trucks, concrete mixers, and essential engineering vehicles without compromising safety margins.
Vibration Dampening: The heavy-duty steel composition naturally absorbs and dissipates the kinetic energy of rolling loads, ensuring a smooth and secure passage for sensitive cargo and heavy machinery alike.
Long-Term Fatigue Resistance: Engineered to withstand continuous daily traffic, maintaining its core load-bearing properties even after years of relentless operational demands in harsh environments.
Time is one of the most critical resources in any large-scale operation. The 3m × 9m standardized modular design of this steel truss bridge is a masterclass in logistical efficiency. By breaking down a formidable structure into manageable, interchangeable units, we have completely revolutionized the installation workflow, allowing rapid deployment without the logistical nightmare of coordinating ultra-heavy machinery.
Standardized 3m × 9m Dimensions: Ensures every bailey panel and transom aligns with mathematical precision, eliminating the need for on-site modifications, cutting, or welding.
Small Team Assembly: The intuitive interlocking mechanism allows a moderately sized, experienced construction crew to erect the entire structure swiftly, significantly reducing labor expenditures.
Reduced Machinery Requirements: Individual bailey panels and transoms (weighing under 1 ton) can be maneuvered with small lorry-mounted cranes, bypassing the need to transport massive lifting equipment to remote sites.
Rapid Emergency Response: In scenarios requiring immediate traffic restoration, this modular system can be deployed and secured in a matter of hours, restoring critical supply lines instantly.
Environmental degradation is the silent adversary of all structural steel. To combat this, every component of the SJ-500 undergoes a rigorous, multi-stage surface treatment process before it ever leaves the manufacturing facility. This protective barrier seals the raw steel away from corrosive elements, ensuring a pristine appearance and uncompromised internal strength throughout its operational life.
Advanced Anti-Corrosion Coating: Forms an impenetrable shield against moisture, oxidation, and chemical exposure, drastically extending the operational lifespan of the bridge.
All-Weather Reliability: Whether deployed in sweltering, humid tropical zones or freezing, damp rural environments, the structural integrity remains absolute and unyielding.
Low Maintenance Profile: The durable finish minimizes the need for frequent touch-ups, scraping, or repainting, allowing your maintenance crews to focus on more pressing operational needs.
Multi-Project Reusability: The robust surface protection ensures that even after being disassembled, transported, and reassembled multiple times, the components resist the typical wear and tear that degrades lesser materials.
True engineering excellence is defined by adaptability. The compact footprint and formidable strength of this modular bridge make it the ultimate chameleon of infrastructure solutions. It seamlessly transitions from a rugged, heavy-duty industrial access point to a refined, permanent crossing for rural communities, adapting effortlessly to the topographical challenges of your specific site.
Construction Site Access: Bridges deep trenches and unstable ground, providing a rock-solid thoroughfare for material transport and heavy machinery access to keep projects on schedule.
Small Span Temporary Bridges: Spans small rivers and farmland canals with ease, creating immediate, safe passage where natural obstacles previously halted progress.
Emergency & Rescue Operations: Serves as a critical lifeline in disaster-stricken areas, replacing washed-out infrastructure rapidly to allow rescue vehicles and supplies to flow uninterrupted.
Rural & Agricultural Traffic: Upgrades local transportation networks with a low-cost, highly durable permanent solution, facilitating the smooth transit of agricultural goods and daily commuters.
Landscaping & Park Paths: Offers a visually appealing, structurally sound pedestrian and light-vehicle crossing for scenic areas, industrial parks, and expansive landscaping projects.
Installation Method Recommendation
No two geographical sites are identical, and off-the-shelf solutions often fall short of specific topographical requirements. As a primary manufacturer, we possess the in-house engineering capabilities to tailor our structural systems to your exact specifications. We do not just supply components; we supply comprehensive, end-to-end engineering solutions designed to guarantee project success.
Complimentary Structural Calculations: Our engineering team provides precise load-bearing and stress distribution calculations to guarantee the proposed structure meets your specific operational demands.
Bespoke Engineering Drawings: We supply detailed, customized CAD drawings that map out the exact configuration required for your unique span, terrain, and load requirements.
Precision Manufacturing: Tailored modifications are executed directly on our production lines, ensuring that customized components maintain the same rigorous tolerances as our standard units.
End-to-End Project Consultation: From the initial site assessment to the final blueprint approval, our technical experts collaborate directly with your project managers to ensure seamless integration.
In the realm of structural engineering, trust is built upon verifiable data and uncompromising standards. We maintain a relentless focus on quality assurance at every stage of the manufacturing process, ensuring that every pin, panel, and bolt exceeds the stringent requirements of international infrastructure standards, mitigating risk for your operations.
ISO9001 Certified Manufacturing: Our entire production facility operates under strict ISO9001 quality management protocols, guaranteeing consistency and excellence in every batch.
Comprehensive Material Traceability: We provide official material certificates for the Q355B steel, allowing you to trace the exact metallurgical properties and origin of your bridge components.
Rigorous Testing Protocols: Detailed test reports are available, documenting the structural integrity, yield strength, and load-bearing verification of our products before dispatch.
Regulatory Compliance: Designed to meet and exceed national safety standards, completely eliminating compliance risks for large-scale procurement and demanding infrastructure tenders.
The successful deployment of a modular bridge relies heavily on precise execution during the assembly phase. We eliminate the guesswork of on-site construction by providing an exhaustive suite of instructional materials and dedicated support channels, ensuring your local teams can erect the structure flawlessly, safely, and efficiently on the very first attempt.
Comprehensive Instructional Assets: We supply highly detailed assembly drawings, step-by-step manuals, and clear video tutorials that demystify the entire erection process from abutment to handrail.
Standardized Procedure Recommendations: We provide proven methodologies, such as assembling bilateral panels first and utilizing specific crane capacities for transoms, to maximize on-site safety.
On-Site Supervision Availability: For complex deployments, our seasoned structural experts can be dispatched directly to your location to oversee the critical phases of the installation.
24/7 Global Support: Our dedicated after-sales service team remains on standby around the clock, ready to provide immediate technical troubleshooting and guidance regardless of your time zone.
Selecting the right partner for critical infrastructure procurement is a decision that impacts the safety, timeline, and financial success of your entire operation. As a direct manufacturer with a dedicated production base in Zhenjiang, Jiangsu, we bypass the inefficiencies of intermediaries to deliver unparalleled value, deep expertise, and steadfast reliability directly to your project site.
Direct Manufacturer Advantage: By controlling the entire supply chain from raw material processing to final assembly, we offer highly competitive pricing without ever compromising on structural integrity.
Specialized Production Lines: Our facilities are exclusively dedicated to the fabrication of bailey bridges and related components, ensuring a level of specialized craftsmanship that general metal fabricators simply cannot match.
Proven Industry Expertise: Years of focused experience in engineering temporary and permanent steel crossings have equipped us with the deep technical knowledge required to solve complex logistical challenges.
Reliable Component Ecosystem: Beyond the main panels, we manufacture and supply the complete ecosystem of chords, frames, deck panels, pins, and bolts, guaranteeing perfect compatibility across the entire structure.
To further assist your project planning and procurement process, we have compiled detailed answers to the most critical technical and operational questions regarding the SJ-500 Modular Steel Truss Bridge.
Prior to erection, the installation site must be thoroughly surveyed to ensure a spacious and flat staging area. The bridge bearings must be precisely installed on the abutments. It is critical to verify the distance between the bolts on both sides of the crossing to ensure they perfectly match the length of the assembled bailey truss, adjusting the abutment bolts if necessary before lifting begins.
The bilateral bailey panels are first assembled on the ground into two continuous structures (each weighing approximately 11 tons for a 27.4m length configuration). A suitably sized lorry-mounted crane is then used to lift these combined truss units and place them securely onto the abutments on either side of the span, making the process highly efficient.
Transoms, which weigh under 1 ton each, can be positioned using a small crane. To maximize the stability of the partially assembled structure, the nearest transom and the farthest transom (within the crane's safe operating radius) should be installed first. Once these anchor points are secure, the intermediate transoms can be safely placed between them.
Yes. Once the sway bracing is installed and the first row of the bridge decking (including side and middle panels) is paved over the transoms, the upper chord reinforcement is added. This strengthens the structure sufficiently to allow the small crane to carefully move onto the completed decking section to install the remaining forward transoms.
Absolutely. We supply a complete set of high-strength steel components, including all necessary pins, bolts, chords, and frames required for full assembly. Like the main panels, these connecting elements undergo rigorous anti-corrosion treatments, ensuring they can be safely disassembled and reused across multiple future deployments without losing structural integrity.
