Scaffolding engineering design and erection parameters The project adopts fully enclosed double-row external landing scaffolding below the third floor of the project, and three-segment fully enclosed cantilever double-row external scaffolding for four or more floors. It is planned to set pre-embedded bolt-connected steel cantilever on the side of the beam from the fourth floor. And wire rope diagonally pulled structure. Cantilever steel, weld strength and pre-buried screw strength check calculation consider the actual situation of the construction. When the steel beam is installed in the project, in the case of meeting the strength grade of the upper concrete, when the three-step frame is set up, the wire rope is used in time. The upper pre-embedded lifting ring is firmly connected.
Therefore, in the three-step frame, only the steel cantilever force is considered. The bending distance is absorbed by the horizontal weld and the shear force is absorbed by the vertical weld. Pre-embeded bolt strength check the effective diameter of the pre-embedded bolt M20C4.8 at the thread d. The lower end of the pole is placed on the pile to prevent the pole from slipping; since the steel wire rope is to be pulled at the end of the I-beam overhang, The same steel bar is welded under the end of the I-beam as the pull-up point of the wire rope, and the pre-embedded bolt is subjected to a tensile force of N:=1.
When the steel pipe is fixed on the inner force bar, each node needs two right angles or rotating fasteners to work at the same time to meet the axial force design value requirements of the wall member. Precautions for the construction of the steel bar on the I-beam (l) All materials involved in the pre-embedded bolt-connected steel cantilever scaffolding must be qualified, and the steel pipe fasteners must be qualified before entering the site for inspection. (2) Under the premise of satisfying the concrete strength, after the scaffolding is erected to the three-step frame, the wire rope must be diagonally pulled with the overhanging steel and the lifting ring provided on the upper beam, and the wire rope joint is fastened by the rope clamp and the flower basket adjusting bolt. (3) 4 M20C4 fixed cantilever steel.
The 8-level bolt pre-buried position must be accurate and in place. The cantilevered steel beam shall be made according to the requirements of the schematic diagram. The welding material, the appearance quality of the weld and the size of the welding foot must meet the relevant requirements of the Technical Specification for Welding of Steel Structures in Construction. The steel pipe top support wall member must be connected to the scaffolding pole by two right angle fasteners or rotating fasteners.
Door Accessories
Door accessories include Automatic Door Kits , High Speed Door Motor And Control Box, High Speed Door Accessories, Other Door Accessories. We can sell any parts of these accessories.
Automatic door kits: Our automatic door kits include 1 motor+gear reducer, 1 belt,7 meter, 1 idle pulley, Microprocessor, 4 sets of carriage blue wheels, 2 sets of floor guides,2pcs remote control, 2 sets belt clamp mounting brackets, 1 power supply harness and cable connectors, 2 locator, Aluminum track whose length is 2.08 meter, 3 meter, or 4 meter. We are a manufacturer of automatic door openers that are designed to provide people convenience. Automatic Door Systems` drive to provide that level of service is but one of the reasons why automatic doors are becoming more and more popular. Our Automatic Sliding Door systems are modern, space-saving and elegant. Automatic sliding doors have many basic functions some of which include: automatic mode with full opening width and/or reduced opening width, and exit only for traffic control. The opening of automatic doors can also be adjustable to make the opening width smaller or larger. Important safety functions such as safety sensors prevent the door from shutting if persons or objects are in the detection zone. If the door leaves are inhibited when closing, they are immediately re-opened or if the door leaves are hindered when opening, they are immediately stopped by a safety automatic reversing mechanism.
High Speed Door motor and control box: Our company have German SEW Motor, Japan Mitsubishi Controller. Our own brand Hofic servo motor and controller. Chinese famous brand SEJ motor and Holip controller. German SEW Motor and Japan Mitsubishi Controller: It is easy to find the ideal energy-efficient motor for your application at SEW. Our rolling gate servo control system is suitable for high speed and high usage soft and hard rolling gate. The whole system is in a small and light package, it has high torque and high operating speed, lower noise, high reliability, smooth and soft operating curves, it`s suitable for high speed and usage environment. SEJ motor and Holip controller: Three-phase asynchronous motor with magnetic brake has broad uses, It is suitable for various mechanical main drive and auxiliary drive, and it is also used for various required rapid stopping and correct positioning.
high speed door accessories: Driving system: High speed door Servo System motor and control, motor SNMA / SEJ +reducer+flang+encoder+control box. Other accessories: Middle aluminium bar, bottom aluminium bar, aluminium vertical track, stainless steel vertical track, brushes,round nylon strip, PVC roll, rolling steel tube complete, drum be;;s for rolling tube, side end covers, stainless steel cover, steel tubes, air bag sensor system, safety light beam, Microwave sensor 24 Gigahertz,PVC welding machine, smoke and fire sensors, PVC transparent window, magnetic loop, photocell, remote control, manual push button, sound warning alarm Led lamp traffic light.
Other door accessories: Sectional door accessories: motor 220V-380V, control box, spring break device, cable break device , aluminum alloy rope pulley, enhanced shaft bracket, air bag system, duplex enhanced guide wheel bracket.
For accessories detail information, please kindly check our detail classify.
Door Accessories,Automatic Door Kits,High Speed Door Accessories,Sliding Door Operator
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfautodoors.com