Design of Top Traction Elevator in Building 6 Floor

Various kinds of technology and scientific discoveries produced by mankind have led to innovations in multi-story construction, especially office buildings that are widely built in the city of Jakarta. This research is under construction, in which to find out whether the design used is appropriate and efficient. From the calculation results, the design of an elevator at a capacity of 1000 kg with a speed of 60 Mpm, a car 1600 X 1400 Hoitsway 2430 X 2240 X 2350 obtains a carrying capacity of 1000 kg (13 people) and a power of 6.19 kW which comes from the Harmoni building (6 floors building). While the tensile stress on the elevator rope is 188.8 kg with an allowable tension of 909.1 kg and the age of the rope is 59.69 months or 4.9 years. The pull on the elevator rope is 131.63 kg with an allowable tension of 909.5 kg and the age of the rope is 1115.3 months or 9.6 years. with an elevator carrying capacity of 630 kg (8 people) and a speed of 105 Mpm (1.75 m/s).


INTRODUCTION
The development of science and technology is the main driving force to assist human activities in daily life.One of the mobility in question is the elevator as vertical transportation used to transport people or goods [1].So that the researcher intends to conduct research with the title "top traction lift design with a capacity of 1000 kg and a speed of 60 mpm car 1600 x 1400 hoistway 2430 x 2240 x 2350 6-floors building which is under construction at Harmoni building, where to find out whether the design used is appropriate and efficient so as to increase safety and comfort for all elevator uses including people with disabilities [2].
The initial planning for the harmony building elevator (6 floors building) was 60 mpm (1.5 m/s), carrying capacity of 1000kg (13 people) originating from PT. X.So, in the design analysis, it is expected to get a design that meets the needs of the harmony floor ( 6floors building) at a speed of 105 mpm (1.75 m/s) and the carrying capacity of the lift is 630 kg (8 people) and the rope life is longer [3].
The traction machine is driven by an electric motor.The traction machine uses gears that function to control the mechanical movement of the elevator by rolling the steel hoist rope over the drive sheave mounted on the gearbox where the motor used is high speed.When the elevator is turned off or the safety device is working, the elevator brake will hold the brake and stop the elevator to ensure the safety of passengers.In the process of emergency braking, due to the brake shoe effect, the whole elevator traction system will have a strong enough vibration [4][5].This analysis uses literature and observation methods so that it is expected to be easier.so this study focuses on the appropriate speed, appropriate capacity, and rope age to support the convenience of

RESEARCH METHOD
In conducting research, planning for passenger elevators must go through the stages that must be followed, using the flow chart of the method below which aims to make this research work by following the results obtained in the field and what will be planned as shown in Figure 1.waiting time data is shown in table 1.Based on the data above, the interval is good according to the suggested elevator category, the interval for agency office buildings ranges from 30 to 40 [9].

Motor power calculation
The driver that will be used in the 630 possibly some the rope is already broken along the fiber layer or steel rope range [10].

Engine Room/Top Traction Design
The design of the engine room/top traction is the most important room, where all the elevator operation processes take place as a whole [11].In the engine room there are m so that it can be categorized according to applicable standards [12].

Overhead and Pitdepth
Overhead design is something that a

Car/Cabin
The elevator cabin operates in the sliding room and treads on the rails on both sides, on the right and left there is a sliding guide that functions to guide or climb the rail [15].In the analysis of the design of the elevator car/cabin, the researcher's attention in determining the car/cabin on the 6-story building is that everyone who will use the elevator feels comfortable.Where the cabin/car elevator that is intended for the public and people with disabilities must have a mirror that can reflect the image of everyone who is in the elevator.The use of this mirror elevator users and elevator efficiency to be used in a 6-story building (Harmoni building) by estimating the number of population in the building, calculating the elevator needs analysis for the building.The 6 floors, calculate and check the interval (I) according to SNI, calculate the efficiency of the use of elevator capacity that affects the motor power requirement (driver motor capacity), ropes and cabin size, calculates Round Trip Time (RT), and the number of elevators [6].Volume 6, Number 2, November 2021 ISSN 2528-2611, e-ISSN 2528-2700

3 . 4 . 1 .
Calculation of load-carrying capacity in the design of an elevator with a capacity of 1000 kgs, 60 M/M The carrying capacity of an elevator can be calculated using the formula: Capacity (Q) = 13 people x 73 kg/person = 949 kg, while the weight of the cage (G cage) = 300 + 125F, where F is the area of the cage with the formula length x width then, Gs = 300+125(1.6mx 1.4 m) x kg/m2 = 580kg.By obtaining the Volume 6, Number 2, November 2021 ISSN 2528-2611, e-ISSN 2528-2700 weight of the cage, the counterweight (Gcw) is = Cage Weight + 0.45 Capacity = 580 kg + 0.45(1000) = 1030 kg.Then the total weight (Qtotal) = Gs + Q transport + Gcw = 2610 kg (Car/Cabin).Motor power calculation The driver to be used in the 1000 kgs, .95x 0.85 x 0.97 = 0.74 ≅ 0.87 5. Rope calculation The calculation of the rope used in the elevator design with a capacity of 1000kgs, 60 Mpm is type = 6x37 = 222+1c, and Dmin/d = 25, while the maximum pulling force of the rope is S w 054 cm .For the rope diameter used (d) = 14.2 mm, weight per meter = 0.670 kg, actual fracture strength = 10200 kg/mm2, 12.07 mm ≈ 13 mm (rounded up) then the rope used is ∅ 14.2 mm.The actual tensile strength of the rope = /mm 2 .The breaking strength of the steel rope is P 222 = F. σ b = 0The allowable tensile stress of the rope is obtained Smax = 909.1 kg while from the previous calculation it is obtained that the tensile stress that occurs in the rope is S = 188.82kg, so it can be concluded that the rope is safe against tensile loads.Average number of duty cycles per month = 1000, while f actor price m is D min d = m.σ.NB. C. C1.C2 or 25 = m x 2.42 kg/mm 2 x 4 x 0.93 x 0.97 x 1 so m : 25/13.71= 1.82.Then the number of repeated bending winding cycles that occur before the rope breaks (z) with the interpolation formula: 280) = 298.459.The number of cycles of repeated bending allowed can be calculated from the equation: 383,6 times of bending, so that the life of the rope can be calculated from the following equation: Calculation of the carrying capacity of the elevator design with a capacity of 630 kgs, 105 Mpm The carrying capacity of an elevator can be calculated using the formula: Capacity (Q) = 8 people x 73 kg/person = 584 kg, while the Volume 6, Number 2, November 2021 ISSN 2528-2611, e-ISSN 2528-2700 weight of the cage (G cage) = 300 + 100F, where F is the area of the cage with the formula length x width then, Gs = 300+125(1.1mx 1.6 m) x kg/m2 = 476 kg.By obtaining the weight of the cage, the counterweight (Gcw) is = Cage Weight + 0.45 Capacity = 476 kg + 0.45(630) = 759.5 kg.Then the total weight (Qtotal) = Gs + Q transport + Gcw = 1819.5kg (Car/Cabin).

kgs, 105 Q+Gs 5 =
Mpm elevator design is Nst = x0.85x0.97 = 0.74 ≅ 0.87.3.Rope calculation The calculation of the rope used in the elevator design with a capacity of 1000kgs, 60 Mpm is type = 6x37 = 222+1c, and Dmin/d = 25, while the maximum pulling force of the rope is S w = kg so that the cross-sectional area of the rope F (222the diameter of the rope used (d) = 1.5 × 0.57 × √222 = 12.74 mm.Based on the standardization of steel rope with a diameter of 12.74, the weight per meter = 0.670 kg, the actual fracture strength = 10200 kg/mm2 or 12.74 mm ≈ 13 mm (rounded up) then the rope used is ∅ 14.2 mm.The actual tensile strength of the rope = The allowable tensile stress of the rope is obtained Smax = 909.5 kg, while from the previous calculation it is obtained that the tensile stress that occurs in the rope is S = 131.63kg, so it can be concluded that the rope is safe against tensile loads.Average number of duty cycles per month = 1000, while f actor price m is D min d = m.σ.NB. C. C1.C2 or 25 = m x 2.42 kg/mm 2 x 4 x 0.93 x 0.97 x 1 so m : 25/8.73 = 2.86.Then the number of repeated bending winding cycles that occur before the rope breaks (z) 550) = 576.470,58.The number of cycles of repeated bending allowed can be calculated from the equation: 115.29 = 115.3months.From these calculations, it is found that the age of the rope is 115.3 months or 9.61 Volume 6, Number 2, November 2021 ISSN 2528-2611, e-ISSN 2528-2700 years.So then the steel rope is replaced before 9.6 years (life < 9.6 years) of service life even though the visual condition of the steel rope looks good, this is caused by factors that affect the strength of the rope, for example, the working condition of the rope due to friction, several elevator propulsion devices including the Control System or Control Panel (Control Cabinet), Geared Machine or Driving Machine, Primary Velocity Transducer/Encoder and governor.In the Indonesian national standard, the engine room height is at least 2 meters, so if you look at the engine room data in a 6-story building which is under construction, it is 2.5 designer needs to pay attention to, especially the distance between the last floor and the roof of the hoistway/base of the engine room, where the amount depends on the speed of the lift [13].For 60 mpm, it's usually around 4.45 m and for speeds of 105 mpm the top-end overhead height is at least 4.85 m [14].While the pit depth design is the distance from the first floor to the bottom of the hoistway.The depth of the lower end pit R/L is at least 1.55 m for a lift at 60 mpm and for a speed of 105 mpm in a lower end pit of 2 m [14].In the design that has been planned for an elevator capacity of 1000 kg, the overhead size is 4.5 m and the pit depth used is 1.5 m, but what is of concern to the researchers is that to achieve SNI RTT which requires a speed of 1.75 m/s and is sufficient with a capacity of 630.kg then the required overhead is 4.85 m and a pit depth of 2 m.So if the elevator used is 1.75 m/m speed, the distance between the last floor to the roof of the hoistway/base of the engine room must be added to a minimum height of 0.35 m from the previous plan data to comply with Indonesian national standards and the depth of the pit must be increased.about 0.5 m from the previous plan data in order to comply with applicable standards.

Table 1 .
Suggested elevator interval

Table 2 .
Suggested elevator interval