Operation shadowless lamp often want to use in the process of using greater power to push, pull down, turn on the operation, the stress of the lamp relationship is more complex, so the quality of operation shadowless lamp installation requirement is very high, currently used in the operating room construction on the surface of the roof structure roughly two kinds, One is that the roof is made of cast-in-place concrete, and the other is that the roof is constructed in other forms. How to install a ceiling-mounted surgical shadowless lamp in the operating room?
1. Before installing the shadowless lamp, the construction personnel shall determine a reasonable and reliable installation scheme according to the civil structure of the operating room and the width and height of the room.
It is understood that most hospitals in various places use their own technology and resources for construction, in various forms, and the installation level and quality are also different. If holes are drilled on the roof plate, use expansion bolts to directly fix the installation components of the surgical shadowless lamp. This method cannot be used when the roof is a prefabricated hollow slab or other simple roof, even if the roof is a cast-in-place reinforced concrete structure, due to the fixing bolts Consistent with the drooping gravity of the shadowless lamp, in the case of long-term use, the bolts may loosen and fall off, and the reliability is not high. For cast-in-place reinforced concrete roofs, there is also a method of partially peeling off the cement, exposing the mesh steel bars, and then welding the surgical shadowless lamp components on the steel bars.
The shortcoming of this kind of method, it is to affect the strength of housetop face and beautiful, 2 it is dependability and construction quality concern are great, search enclothe advocate reinforcing bar below cement is more troublesome, elevation construction assures quality hard and so on.
2. Use the cement ring beams on both sides of the roof surface (or the load-bearing walls on both sides) to erect horizontal beams, and then install the surgical shadowless lamp under the horizontal beams.
The advantages of this method are high reliability, simple installation and construction method, no damage to the original state of the roof surface, and wide application range. The horizontal beam can be made of No. 10 channel steel. According to the force effect, the groove of the channel should be in the horizontal direction. A simply supported beam structure with fixed ends, calculated by the weight of the load, the strength of the channel steel itself is no problem.
The key point of this installation method is the selection and fixation of the beam supports at both ends, because the supports at both ends must bear the full weight of the surgical shadowless lamp and the horizontal beam, as well as all the external forces generated in use, 15-gauge angle steel or 15/10 can be used. The unequal angle steel is fixed on the side of the ring beam with 6 pieces of M20 through-wall bolts or expansion bolts respectively. The fixing bolts are basically not subjected to tension and will not be pulled out. The shear force that can be endured far exceeds the load requirements. The horizontal beam can be fixed on the plane of the two supports with bolts to prevent horizontal movement. The horizontal beam should use channel steel produced by regular manufacturers without distortion and good quality. Its length should not be too short, and it is appropriate to be about 10mm shorter than the indoor width.
Post time: Mar-25-2022
