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Anonymous users2024-02-12The beam is 400*1500, with a tie bolt.
The spacing is set, every 20 centimeters a pair of bolts, the bolts should be symmetrical and balanced, to avoid eccentric tension bending.
The tie bolt (tie screw) is used for the tie between the wall and the outer formwork, bears the lateral pressure and other loads of concrete, ensures that the spacing between the inner and outer formwork can meet the design requirements, and is also the fulcrum of the formwork and its supporting structure, so the arrangement of the tension bolt has a great influence on the integrity, stiffness and strength of the formwork structure.
Tension bolts are generally made of round steel with threading at both ends.
Bolts, also known as through-wall bolts, are also used with flat bars.
Leave long holes at both ends and insert wedge-shaped iron to fix the wedge. Because bolts are also a type of railway fittings, railway fittings are an integral part of railway lines, and the tracks referred to here include steel rails.
Sleepers, connecting parts, track beds, anti-climb equipment, rail braces and switches, etc. As a monolithic engineering structure, the track is laid on the roadbed, plays a guiding role in the operation of the train, and directly bears the huge pressure of the rolling stock and its load. Under the dynamic action of train operation, its various components must have sufficient strength and stability to ensure that the train runs safely, smoothly and uninterruptedly according to the specified maximum speed.
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Anonymous users2024-02-11The tension bolts should be arranged symmetrically and evenly to avoid bending caused by eccentric tension, so it is advisable to set up according to 150 spacing.
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Anonymous users2024-02-10When the net height of the beam section is greater than 500mm, the side of the beam must be provided with tie screws, and when the section height is greater than 1000mm, no less than 2 rows of tie screws are arranged.
When the web height of the beam is 450mm, the longitudinal construction reinforcement should be configured along the height on the two sides of the beam, that is, the floating waist reinforcement, and the cross-sectional area of the longitudinal structural reinforcement on each side should not be less than the web cross-sectional area BHW, and its spacing should not be greater than 200mm. In on-site construction, the beam height is generally more than 80cm, and the column width is more than 70cm.
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Anonymous users2024-02-09When the beam side support vertical gang adopts 10 10 wooden squares, and the horizontal support is fixed by steel pipe, then there is no need to use the tie bolt. However, nowadays 10 10 wood squares are rarely used, and even 6 9 wood squares are less than a foot, so it is necessary to use tie bolts to strengthen the stability of the formwork, and generally need to use tie bolts when the height of the beam web exceeds 500mm.
Key Benefits:Nine of them are standard bottom films. The width of the bed die is 5032mm, and the total length is 33400mm.
The middle blocks of the bottom membrane are all 4m long. It can meet the requirements of prefabricated 32 meters of girder (Tongqiao [2008] 2322A-II). Demolition of two 4-meter beams (Tongqiao [2008] 2322A-V).
The other set is widened by 150mm on both sides of the mold bottom, and lifted up 600mm to meet the low beam and meter low beam. The lifting of the bed mold is achieved by raising the beam-making pedestal, that is, making a meter-high box-shaped concrete or steel structure, placing it on the beam-making pedestal and welding it together.
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Anonymous users2024-02-08Outer beams, beams with a belly height of 600, columns with a cross-sectional size of 600, and all walls must be reinforced with tension bolts.
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Anonymous users2024-02-07How high the beam needs to be added to the tension bolt, and there are no specification requirements.
When the net height of the beam is greater than 500mm, the side of the beam must be provided with tie screws, and when the section height is greater than 1000mm, no less than 2 rows of tie screws are arranged. When the web height of the beam is 450mm, the longitudinal structural reinforcement should be configured along the height of the two blind sides of the beam, that is, the floating waist reinforcement, and the cross-sectional area of the longitudinal structural reinforcement on each side should not be less than the web cross-sectional area BHW, and its spacing should not be greater than 200mm. In the on-site construction, the beam height grinding is more than 80cm, and the tension bolt is set up, and the column width is more than 70cm.
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Anonymous users2024-02-06According to your question, the distance from the bottom of the beam from the bottom of the bottom of the last tension screw should not be greater than 150mm. Basis] I think you're good and the answer <>
This may be based on the following considerations:1Structural Stability:
Hanging the tension screw at the bottom of the beam can provide support and stability to the beam. By limiting the distance from the tension screw to the bottom of the beam, a tight connection between the support point and the bottom of the beam can be ensured, increasing the stability of the structure. 2.
Load transfer: Pull screws are typically used to carry vertical or horizontal loads and transfer them to beams. If the distance from the tension screw to the bottom of the beam is too large, it may lead to uneven load transfer or large bending force, which will affect the safety and stability of the structure.
3.Bending and torsion resistance: The bending and torsion resistance of a pull screw refers to its ability to resist the bending and torsional forces generated during use.
Placing the tension screw close to the bottom of the beam can improve its bending and torsional resistance, thereby reducing the deformation of the bottom of the beam and the effects of deformation. Please note that specific distance limits may vary depending on structural design standards, building codes, or related technical requirements. If you have a specific structural design or construction project, it is advisable to consult with a professional engineer or follow local building codes and standards to ensure the safety and compliance of the structure.
The distance from the bottom of the beam from the bottom of the last tension screw should not be greater than 150mm. Basis.
According to your question, the distance from the bottom of the beam from the bottom of the bottom of the last tension screw should not be greater than 150mm. Basis] I think you're good and the answer <>
This may be based on the following considerations:1Structural Stability:
Hanging the tension screw at the bottom of the beam can provide support and stability to the beam. By limiting the early imitation distance from the tension screw to the bottom of the beam, the tight connection between the support point and the bottom of the beam can be ensured, and the stability of the structure can be increased. 2.
Load transfer: Tension screws are typically used to carry vertical or horizontal loads and transfer their tumbling fibers to the beams. If the distance from the tension screw to the bottom of the beam is too large, it may lead to uneven load transfer or large bending force, which will affect the safety and stability of the structure.
3.Bending and torsion resistance: The bending and torsion resistance of a pull screw refers to its ability to resist the bending and torsional forces generated during use.
Placing the tension screw close to the bottom of the beam can improve its bending and torsional resistance, thereby reducing the deformation of the bottom of the beam and the effects of deformation. Please note that specific distance limits may vary depending on structural design standards, building codes, or related technical requirements. If you have a specific structural design or construction project, it is advisable to consult with a professional engineer or follow local building codes and standards to ensure the safety and compliance of the structure.
Which specification comes from.
From the "General Code for Filial Piety Construction Scaffolding" GB 55023-2022 or "Definition of High Support Formwork Coincidental Big Touch, Construction Process, Special Construction Imitation Front Scheme and Testing and Acceptance, etc.".
Pull bolts. The water-stopping steel sheet should be 50*50, 30*30, 15*15. There is no requirement in the specification, the purpose of using the waterproof steel sheet is to prevent water seepage at the tension bolt, one is to ensure that the weld at the welding place of the tension bolt and the waterproof steel sheet should be fully welded, and no pores can be left, and the other is to ensure that the concrete is poured and compacted to play a waterproof effect. >>>More
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y 0 obtains that the reaction force of the two supports is 1 2ql, and the body is cut off in the middle of the span, and the half-span uniform load is calculated. >>>More
Tension screws are generally used in above-ground buildings, highways, bridges and other projects, on the one hand, to support and fix the formwork to prevent violent molding, and on the other hand, to control the thickness of the wall. When the tension screw is used, it is used in conjunction with the wall sleeve, which can protect the screw from being taken out smoothly in the later stage and not being damaged and reused again.
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