Re: old building can not be added directly under four circumstances
how to design the elevator is often one of the concerns of the residents. In addition to meeting the requirements of the technical specifications for the existing residential building functions, the site conditions, structural safety, rescue channels, fire channels, environmental transformation, and mutual interference are the factors to be used. Considering all the considerations, we should also pay attention to the adverse effects on ventilation, lighting, sunshine and traffic.
from the present point of view, the existing design of the existing elevator unit in Ji'nan is divided into two types, and the wrong half layer enters the household directly with the peace layer. The wrong half of the households can only change the staircase public parts, and do not affect the owner's housing structure, and choose more. This way is that the elevator stops are located in the 3 and half, 4 and half, 5 and half floors of the corridor, and the ventilation windows of the stairs in the corridor will be opened. The elevator is connected by the corridor bridge with the elevator shaft. After the elevator is taken up the elevator, the half or the lower half of the elevator will need to go home. However, for example, 1 units, such as the dormitory 8 of the Qianfo Hill campus dormitory, used a flat floor plan to design a corridor on the outside of the three - level household kitchen.
and the revised guidelines provide clear requirements for the design of flat floor entry. The elevator should be arranged according to local conditions, and the bottom line should be streamlined to avoid roundabout. The way of adding elevator is divided into the use of staircase, the middle rest platform, the wrong half storey, the entrance to the house and the peace layer. Flat floor directly into the household, the entrance door position should generally be near the elevator side of the first house (except toilet) in the shortest distance, the corridor width should not be more than 1.5 meters, and should not be less than 1.2 meters.
four cases may not be directly added to the elevator
guide requirements, the same residential area, the same type of residential elevators should be in the structural form, elevator shaft size, location, length of the corridor, architectural style and so on as far as possible. The appearance of the elevator should be coordinated with the original building's overall architectural style. Before the design, raw materials such as reconnaissance reports and construction drawings of the original buildings should be collected. When necessary, supplementary measurements should be made when the data are incomplete. This paper investigates the conformity of the original building with the original data, the quality of construction, the condition of maintenance and safety, and the deformation of the foundation, and analyzes the feasibility of adding elevators from three aspects of safety, seismic performance and foundation deformation.
according to the revised guideline, it is clear that when the building is a masonry structure, the elevator should not be added directly without identification and reinforcement in four cases. It includes early construction, no seismic design, no seismic measures, heavy wall demolition, and no strengthening measures. The minimum size of the wall, the beam and the setting of structural columns do not conform to the standard of earthquake resistance; the ground deformation causes the overall slope of the house to exceed the overall rate. Over standard or load-bearing wall cracking, and settlement has not yet been stable.
besides, elevators should not occupy fire lanes. The net width and clearance height of fire lanes should not be less than 4 meters, and the turning radius should not be less than 9 M. The fire lane is determined by the original design drawings of the house. If the original design drawings are not clearly marked or lost, the fire lane will meet the fire requirements according to the distance of the elevator position and the distance of the fire lane is not more than 120 meters. After the elevator is added, the fire protection distance between the multi-storey residential buildings should not be less than 6 meters.