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Withstanding 260km/h Typhoons! The Robust Construction Solution for the Coal Bunker of Kalakala Power Plant in the Philippines

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Project Challenges: Double Impact of Typhoons and Earthquakes The coal storage bunker of Power Plant in the Philippines has been facing tests from extreme natural conditions since the planning stage: Climate Challenge : Located in a super typhoon zone with wind speeds of up to 260 kilometers per hour, it withstands fierce storms and heavy rains every year. Geological Threat : Situated in a high seismic intensity zone with Z=0.4, the structural stability must be absolutely guaranteed. Cost Pressure : The client requires strict control over overseas construction costs while ensuring safety, and also demands controllable construction periods. Ultra-Large Scale : With a total height of 48.675 meters and a foundation height of 3.0 meters, the long-span dome design poses a great challenge to structural strength for industrial projects. Solutions: Comprehensive Upgrades from Design to Materials Targeting these pain points, our overseas engineering team has tailor-made a combined solu...
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What Are The Surface Treatments Available For The Space Frame Material?

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  What Are The Surface Treatments Available For The Space Frame Material? 👉Material of space   frame: ordinary carbon steel, stainless steel, composite stainless steel, reinforced plastic. 👉In addition to painting, the surface also has the following special surface treatments: zinc spraying, aluminum spraying, powder spraying (plastic spraying), fluorocarbon spraying, etc.
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Features of truss

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  From the perspective of material layout (or distribution), the truss can be regarded as a latticed beam as a whole, and its overall mechanical performance is similar to that of the beam. In the detail structure, each rod is used to re-direct the force flow (the nodes between the rods are not overlapped, and the bending moment cannot be transferred), and the overall layout is basically consistent with the main stress trace. Each rod is a secondary force rod, which is only subjected to tension and compression Truss, especially space pipe truss, is often made into arch. However, at this time, the arch is not a pure pressure arch, and the whole arch is still dominated by bending. We can also consider it as a curved beam in a certain sense. Of course, arch camber can increase the span capacity, and the role of "axial force" in the "beam" can not be ignored at this time, but in most cases, especially when the rise-span ratio is small, the bending is still the main part.
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BOLT BALL

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 BOLT BALL Space frame structure is a kind of structure connected by the node of bolt ball , so the bolt ball is the key component of the structure. In GB standard. the bolt ball is made of 45# steel with the diameter of 100mm to 300mm. Normally there are 3-12 holes in the bolt ball and each axial line of the bolt hole is through the center of the ball.
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Advantages of steel structure in terms of cost

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  Advantages of steel structure in terms of cost The materials used in the steel structure can be rolled into various profiles by specialized metal structure factories, which are easy to process and produce, and have high accuracy and precision. The finished components can be transported to the site for assembly and connected by welding or bolts. Because the components are light, it is easy to install, the degree of construction mechanization is high, and the construction period is short, which creates conditions for reducing the cost and exerting the economic benefits of investment. In addition, it is relatively easy to rebuild and strengthen the steel structure that has been built, and the structure connected by bolts can also be demolished as needed, and the reuse rate is high.
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INSTALLATION IN HIGH ALTITUDE

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 INSTALLATION IN HIGH ALTITUDE The high-altitude installation method refers to the method of transporting the transport unit (plane truss or cone) or parts transported to the site, using a hoisting machine to lift it to a high altitude and assemble it into an overall structure. It is suitable for bolt balls or high-strength bolts. Grid structure. During the assembly process, a part of the space frame is always suspended. When the grid frame is suspended and spliced into a stable system, there is no need to set up any brackets to bear its own weight and construction load. Installation in high altitude When the span is large and spliced to a certain length of overhang, set up a single-leg column or bracket to support the overhanging part to reduce or avoid deflection due to self-weight and construction load
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The ground assembly method can be divided into several construction methods:

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  The ground assembly method can be divided into several construction methods: a. On-site assembly and overall jacking The space frame  is assembled on the ground, and the fulcrum is set at the position of the column, so there is no need to stagger it, and then the space frame  is raised to the design level with a jack. b. On-site assembly and overall improvement The space frame  is fully assembled on the ground, and then the space frame  is raised to the design level by using the plate lifter or the sliding form lifting machine. c. On-site assembly, overall hoisting, and high-altitude displacement This method is to stagger the grid support from the position of the support column when assembling on the ground (when individual rods affect the lifting, they can not be assembled, but should be properly reinforced). Then use the hoist to lift the space frame , and then move the space frame  after it exceeds the top of the column, so that the support of the spac...
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The design of the steel structure

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  The design of the steel structure should be focused on different specific conditions, and a good architectural design must achieve the integration of the image and structure concept.
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