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How to Fix and Prevent Roof Leakage in Light Steel Structures

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Roof leakage is one of the most common problems in light steel workshops and warehouses. It not only affects daily use but also causes internal corrosion, shortens the building’s service life, and leads to higher maintenance costs. Most leakage happens at panel joints, screw holes, flashing areas, or around openings. The main reasons are poor waterproof treatment, aging sealant, loose screws, or improper installation. To fix existing leaks, first clean the surface and locate the leakage points. Replace damaged or aging sealing strips. Re-tighten loose screws or replace them with waterproof self-drilling screws. Apply professional waterproof sealant at joints and openings. For serious cases, add a layer of waterproof coating to improve protection. To prevent future leakage, use high-quality roof panels and waterproof materials from the beginning. Ensure professional installation with standard flashing and sealing design. Conduct regular inspections, especially before rainy seasons, and ...
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Steel structure design of high-speed railway station

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 The high speed railway station has a novel shape, and the structure above the ground adopts steel structure and the overall scheme of steel structure + space frame is adopted. In order to realize the design concept of "displaying the natural beauty of the structure", the structural main station adopts the construction and bridge integration structure system according to the requirements of the building facade and the interior decoration effect. The structural system of "A column +Y column + straight column supported catenary steel truss roof "is designed. The tilt Angle of the west leg of pillar A is consistent with the elevation Angle of the building, which cleverly integrates the structural members into the building facade and provides effective lateral force and vertical support for the structural system. Y-pillar provides a more spacious and comfortable space for the waiting hall, enriches the interior visual effect, and reduces the structural span of the two-span main truss of the roof, providing vertical support for the roof structure. The vertical columns achieve the effect of the eastern facade of the building, while providing vertical support for the roof structure system; Catenary main truss beam avoids the increase of cost and construction difficulty caused by secondary structure finding.



This structure system combines construction and bridge, and the system is unique. The concrete structure is below the rail layer, and the steel structure is above the rail layer. The damping ratio of the two structural materials is different, and the lateral stiffness of the upper and lower parts is sudden change. There is a large empty area over the entrance hall of the main station, and the waiting floor is discontinuous. The commercial interlayer is a transfer structure with discontinuous vertical components. The maximum span of the steel structure roof is 84 m, the maximum roof overhang is 18 m, and the maximum height of the building is 43 m. This project is A complex combined structure, so three structural systems are compared (scheme 1: A column at both ends + space frame; Scheme 2: A column at both ends + two columns in the middle + space frame; Scheme 3: A column at both ends + Y column at the east side + truss), after adopting the seismic performance design, the dynamic elastic-plastic analysis of the structure is carried out by using ABAQUS model, the comfort level of vehicle-induced vibration is analyzed by using ANSYS model, and the key nodes are analyzed by finite element method to provide reliable theoretical support for the safety and economy of the structure.

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What is a coal bunker?

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What is the difference between a single-layer reticulated shell and a double-layerreticulated shell?

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Structural Steel Bolting Balls: Connecting the Future, Securing the Cornerstone

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In the field of steel structure , bolted ball, as an innovative choice of connecting node, is gradually becoming the preferred solution in modern buildings and industrial facilities due to its advantages of easy installation, removable and reorganisable, and low maintenance cost. Compared with traditional welded balls, bolted balls not only simplify the construction process and improve efficiency, but also give the structure greater flexibility and sustainability, which is an indispensable and important component in modern steel structure projects. The core concept of the bolted ball connection technology is to use high-strength bolts to closely connect the components to form a stable and reliable node structure. Compared with welded ball, bolted ball connection does not require on-site welding and avoids thermal stress, deformation and weld quality problems that may arise during the welding process, thus improving the overall stability and safety of the structure. In addition, the bo...
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