阅读说明：本技术 一种基于bim的高速铁路站房机房装配式建设施工工法 (BIM-based high-speed railway station room machine room assembly type construction method ) 是由 张军 王辉 李二进 贺斌 王乐 王磊 于 2021-10-14 设计创作，主要内容包括：本发明公开了一种基于BIM的高速铁路站房机房装配式建设施工工法,涉及各类工业与民用建筑设备机房施工技术领域。本发明具备通用性、精确性和实用性：适用于各类工业与民用建筑信息机房、设备机房装配式一体化施工,采用BIM模块化理念,运用Revit绘制标准部位模型,模型按专业合理切块划分,分批集中定制加工,整体安装集中连接,实现信息机房装饰装修、机电安装工程精确装配式施工,信息机房由于分跨房建、信息、电力、暖通、消防多个专业实施,在工期、工序的协调上存在矛盾。采用装配式一体化设计后解决了这个矛盾,工艺原理易懂,施工方法简单实用,可操作性强。(The invention discloses a BIM-based high-speed railway station room machine room assembly type construction method, and relates to the technical field of machine room construction of various industrial and civil building equipment. The invention has the advantages of universality, accuracy and practicability: the method is suitable for the assembly type integrated construction of various industrial and civil building information machine rooms and equipment machine rooms, the BIM modularization idea is adopted, the Revit is used for drawing a standard part model, the model is reasonably partitioned according to the major, the model is processed in a batch and centralized customization mode, the whole installation is connected in a centralized mode, the accurate assembly type construction of information machine room decoration and electromechanical installation engineering is realized, and the contradiction exists in the coordination of construction period and working procedures due to the fact that the information machine room is implemented in multiple major modes of cross-building construction, information, electric power, heating ventilation and fire fighting. The assembly type integrated design is adopted to solve the contradiction, the process principle is easy to understand, the construction method is simple and practical, and the operability is strong.)

1. A BIM-based high-speed railway station room machine room assembly type construction method is characterized in that: the construction method comprises the following steps:

the method comprises the following steps: preparing technology before construction;

step two: handing over with the house construction specialty;

step three: machine room assembly type decoration;

step four: machine room assembly type electrical;

step five: comprehensive wiring of a machine room;

step six: the machine room is arranged in a heating and ventilating mode;

step seven: fire control setting of a machine room;

step eight: and (5) matching with related professional ending.

2. The BIM-based high-speed railway station room machine room assembly type construction method according to claim 1, characterized in that: the third step comprises the following steps:

the first step is as follows: planar arrangement;

the second step is that: selecting ground materials;

the third step: determining ground material selection;

the fourth step: determining the size relationship between the cabinet equipment and the base;

the fifth step: selecting materials for wall surface design;

and a sixth step: and (5) selecting materials for the top.

3. The BIM-based high-speed railway station room machine room assembly type construction method according to claim 1, characterized in that: the fourth step comprises the following steps:

the first step is as follows: determining the laying requirement of a power supply cable;

the second step is that: an integrated cabinet;

the third step: finishing the setting of the machine room illumination;

the fourth step: and finishing planning the machine room grounding system.

4. The BIM-based high-speed railway station room machine room assembly type construction method according to claim 3, characterized in that: the method for finishing the planning of the machine room grounding system comprises the following steps:

s1: determining the specific index requirement of the ground wire;

s2: determining the grounding requirement of the terminal equipment;

s3: determining the lightning protection ground wire requirement of a main distribution frame;

s4: and (6) integral grounding treatment.

5. The BIM-based high-speed railway station room machine room assembly type construction method according to claim 1, characterized in that: the fifth step includes the steps of:

the first step is as follows: planning the laying of information cables of the comprehensive wiring system of the machine room;

the second step is that: a comprehensive wiring system;

the third step: arranging and planning the comprehensive wiring cabinet;

the fourth step: and (5) color separation planning of the comprehensive wiring system.

Technical Field

The invention relates to the technical field of construction of machine rooms of various industrial and civil building equipment, in particular to a BIM-based fabricated construction method for a machine room of a high-speed railway station.

Background

With the rapid development of the domestic high-speed railway infrastructure project, the transportation is more and more convenient, the concept of high-speed rail public transportation is gradually realized, particularly the formation of one-hour economic circle around the Shanhuning city, the increase of new lines and the upgrading and reconstruction of old stations enable the number of high-speed railway station rooms to be gradually increased and the requirements to be higher and higher, and particularly an information machine room plays a key role in the railway passenger transportation service management. Because of the implementation of multiple specialties of cross-building, information, electric power, heating ventilation and fire fighting, contradictions exist on the coordination of construction period and working procedures;

because the construction progress requirement of the station building is short, the building and the information major often work in the same space at the same time, the environment for installing the information system equipment cannot be controlled, hidden dangers are brought to the future operation of the equipment, and the requirement of constructing a standardized information machine room is difficult to meet. In the past project, the supporting facilities in the information machine room are independently designed by each specialty, although the functions of each system are met;

however, the existing construction process often generates cross, influences each other and cannot form an integral effect, and the display in the machine room is disordered, so that the requirement of standardized machine room construction is difficult to meet.

Disclosure of Invention

The invention aims to provide a BIM-based high-speed railway station room machine room assembly type construction method, which aims to solve the existing problems: the existing construction process is often crossed, the mutual influence is caused, the integral effect cannot be formed, the display in a machine room is disordered, and the requirement of standardized machine room construction is difficult to meet.

In order to achieve the purpose, the invention provides the following technical scheme: a BIM-based high-speed railway station room machine room assembly type construction method comprises the following steps:

the method comprises the following steps: preparing technology before construction;

step two: handing over with the house construction specialty;

step three: machine room assembly type decoration;

step four: machine room assembly type electrical;

step five: comprehensive wiring of a machine room;

step six: the machine room is arranged in a heating and ventilating mode;

step seven: fire control setting of a machine room;

step eight: and (5) matching with related professional ending.

Preferably, the third step comprises the following steps:

the first step is as follows: planar arrangement;

the second step is that: selecting ground materials;

the third step: determining ground material selection;

the fourth step: determining the size relationship between the cabinet equipment and the base;

the fifth step: selecting materials for wall surface design;

and a sixth step: and (5) selecting materials for the top.

Preferably, the fourth step comprises the following steps:

the first step is as follows: determining the laying requirement of a power supply cable;

the second step is that: an integrated cabinet;

the third step: finishing the setting of the machine room illumination;

the fourth step: and finishing planning the machine room grounding system.

Preferably, the finishing of the planning of the machine room grounding system comprises the following steps:

s1: determining the specific index requirement of the ground wire;

s2: determining the grounding requirement of the terminal equipment;

s3: determining the lightning protection ground wire requirement of a main distribution frame;

s4: and (6) integral grounding treatment.

The fifth step includes the steps of:

the first step is as follows: planning the laying of information cables of the comprehensive wiring system of the machine room;

the second step is that: a comprehensive wiring system;

the third step: arranging and planning the comprehensive wiring cabinet;

the fourth step: and (5) color separation planning of the comprehensive wiring system.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention is suitable for the assembly type integrated construction of various industrial and civil building information machine rooms and equipment machine rooms through the universal design;

2. according to the invention, through the precision design, a BIM modularization concept is adopted, a standard part model is drawn by using Revit, the model is reasonably cut into blocks according to the profession, is processed in a batch and centralized customization way, is integrally installed and connected in a centralized way, and realizes the decoration and fitment of an information machine room and the accurate assembly type construction of electromechanical installation engineering;

3. through the practical design, the information machine room is implemented by multiple specialties of cross-building, information, electric power, heating ventilation and fire fighting, so that contradictions exist on the coordination of the construction period and the working procedures. The assembly type integrated design is adopted to solve the contradiction, the process principle is easy to understand, the construction method is simple and practical, and the operability is strong.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a process flow diagram of the present invention as a whole;

FIG. 2 is a schematic view of the overall formation of the present invention;

FIG. 3 is a schematic diagram of the top section material selection design requirements of the present invention;

FIG. 4 is a schematic representation of the power cabling requirements of the present invention;

FIG. 5 is a schematic view of an integrated cabinet of the present invention;

FIG. 6 is a schematic view of the room illumination of the present invention;

fig. 7 is a schematic diagram of information cable laying planning of the computer room integrated wiring system of the present invention;

FIG. 8 is a schematic diagram of the integrated wiring system of the present invention;

FIG. 9 is a schematic diagram of the wire management plan of the integrated wiring cabinet of the present invention;

FIG. 10 is a schematic diagram of color separation planning for the integrated wiring system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 10, a building construction method for assembling a building machine room of a high-speed railway station based on BIM includes the following steps:

the method comprises the following steps: preparing technology before construction;

the method comprises the steps of modeling by adopting a BIM technology, designing an assembled integrated machine room scheme, butting a plane layout diagram of the machine room, submitting a construction scheme to relevant organizations and design houses of a construction unit for evaluation, and carrying out plane layout scheme evaluation before implementation.

Step two: handing over with the house construction specialty;

and (3) determining the main structure of the machine room to complete the building of the building specialty, finishing the building of the wall body, finishing the closing of the door and window holes, and finishing the waterproof construction of the ground cushion layer and the roof.

Step three: machine room assembly type decoration;

the machine room decoration covers machine room plane arrangement, wall, top, ground decoration and the like, anti-electromagnetic interference factors of the machine room are fully considered, and the wall surface and the top surface are decorated with metal materials, so that a good shielding effect is ensured.

Step four: machine room assembly type electrical;

step five: comprehensive wiring of a machine room;

step six: the machine room is arranged in a heating and ventilating mode;

the air-cooled precision air conditioner special for the machine room is adopted, the temperature in the machine room is controlled to be 18-25 ℃, and the air-cooled precision air conditioner has a constant temperature and humidity function; the function of self-starting of incoming calls is provided; the air filter has the air filtering function; the remote monitoring and communication function is achieved; the water outlet of the air conditioner drainage is reserved in the building construction stage.

Step seven: fire control setting of a machine room;

arranging fire extinguishing gas steel cylinders according to the space of the machine room area; if the machine room is not connected with the outer wall of the station room, an independent strong smoke exhaust pipeline needs to be arranged outside the machine room; point type smoke sensors and point type temperature sensors are arranged in the machine room ceiling, below the ceiling and below the static floor; the emergency lighting system needs to adopt an emergency lighting power supply. When the commercial power is normally supplied, the commercial power is automatically and mutually thrown to the lighting load through the double power supplies to supply power, and meanwhile, the charger intelligently charges the emergency standby battery. When the commercial power is cut off or exceeds 25 percent of the normal voltage, the inverter power supply is started to supply power; audible and visual alarms are arranged inside and outside the machine room, and the entrance guard is relieved when the alarm occurs; the fire-fighting equipment control module is connected with a station fire-fighting control center in a network and has a remote communication function.

Step eight: and (5) matching with related professional ending.

Interfacing with civil engineering specialties: the main structure body is required to be completed, the wall body is built, the entrance door opening is closed, and the roof is waterproof.

And professional interfaces with heating ventilation and electric power: the size and load of the indoor unit and the position of the outdoor unit pipeline entering the machine room are provided. And the construction of the electric power professional bridge frame entering the machine room inlet is finished. And finishing the laying of the power cable to the power distribution cabinet according to requirements.

Interfacing with fire-fighting professionals: the base size of the indoor steel cylinder equipment, the cable quantity of the wall surface control box and the size of the control box are provided.

The third step comprises the following steps:

the first step is as follows: planar arrangement;

planning principle: the door of the equipment carrying passage is not less than 1.2 m, and the door is tidy and regular, and the maintenance space between the equipment is ensured according to the standard requirement, and the maintenance and the replacement of the equipment are simultaneously considered. The equipment area and the power supply area should have a certain distance, and the planar arrangement scheme is implemented after examination.

The second step is that: selecting ground materials;

a borderless ceramic surface all-steel anti-static movable floor is laid in the machine room area, and the height is 300 MM; the ground height of the machine room area is not consistent with that of other areas after the floor is laid, and the machine room area is communicated with the groundThe step area is buffered, so that the appearance is attractive and humanized, and people can conveniently come in and go out; in order to ensure the cleanliness of the ground, ceramic floor tiles are laid after the terrace is subjected to leveling and cleaning treatment; a power cable laying climbing frame is arranged under the floor, and a transparent anti-static floor is arranged at a route so as to be convenient for future maintenance and overhaul; the floor grounding grid adopts 6mm²A cross-shaped compression joint construction mode of bare copper wires is characterized in that one end point is connected to a grounding copper plate, a single circuit is adopted for grounding, and the grounding resistance is smaller than 1 ohm.

The third step: determining ground material selection;

the ceramic antistatic floor adopts 600 multiplied by 10mm antistatic ceramic tiles as surface layers, has the characteristics of high wear resistance, fire resistance, water resistance, high bearing capacity, long service life, easy cleaning, attractive appearance and the like, the lining is superior to a composite all-steel bare board of the same product, the periphery of the composite all-steel bare board is sealed by conductive adhesive tapes, the thickness of the whole board is 40mm or 45mm, and the fireproof performance reaches the A-level or B1-level standard.

The product is characterized in that:

a. and (3) antistatic: the movable floor has stable and lasting system resistance, and the system resistance is 10 th power omega from 6 th power to 10 th power.

b. And (3) pollution resistance: the porcelain tile surface solves the problem of dirt absorption by improving the formula of raw materials of the product, reducing pores and the caliber of a small pore and coating a layer of special coating on the surface of the tile to ensure that sewage is difficult to permeate into the tile.

c. No radiation: the porcelain tile is detected by the national building material testing center, does not contain radioactive elements, is safe and reliable, ensures health, and is an ideal substitute material for natural stone.

d. Aging resistance: the quality is good, the hardness reaches 7 degrees in Mohs, and the service life is more than 60 years.

e. The bearing capacity is strong: the uniform load is more than 1600 kg/square meter.

The fourth step: determining the size relationship between the cabinet equipment and the base;

the four sides of the base manufactured by the equipment such as each network cabinet, power supply, precise air conditioner and the like in the machine room are required to be contracted by 1.5 cm compared with the size of the equipment, the bases of the equipment in the row are required to keep the same horizontal height, and the error is not more than 5 mm. The front of the base after retraction is aligned with the electrostatic floor during installation, and the center point of the base is aligned with the center point of the base during installation of equipment, so that four sides of the base are hidden in the periphery of the equipment after installation of equipment of the cabinet. When the electrostatic floor is installed, the cut electrostatic floor is inserted into the lower part of the cabinet equipment and is spliced and aligned with the base, and the cabinet base is not exposed after the cutting is finished.

The fifth step: selecting materials for wall surface design;

in consideration of the requirements of attractiveness and electromagnetic interference resistance, the wall surface in the decoration area mainly adopts a metal anti-static wallboard special for the computer room, and the performance of the wallboard in the aspects of fire prevention, static prevention, dust prevention, shielding, attractiveness, durability and the like is suitable for decoration of the computer room. The wall surface light steel keel and the ground metal keel are electrically connected.

And a sixth step: and (5) selecting materials for the top.

The suspended ceiling adopts 600 × 600 high-grade aluminum alloy micropore square plates, the material is most suitable for machine room decoration, and the effects of air return, sound absorption and static electricity prevention can be achieved. And brushing epoxy resin paint for three times on the surface layer of the internal structure of the suspended ceiling for dustproof treatment. The top light steel keel is electrically connected with the wall surface and the ground metal keel.

The fourth step comprises the following steps:

the first step is as follows: determining the laying requirement of a power supply cable;

the machine room electric bridge is led to the ground from the suspended ceiling by adopting a ladder type bridge, and is laid and installed to each equipment from the lower part of the anti-static floor; and a power supply cable and a grounding cable are laid on the underfloor ladder-type bridge. Other cables cannot be used; the cable that registers one's residence in the electric power specialty should lay to in the switch board that this specialty provided according to this design requirement.

The second step is that: an integrated cabinet;

the construction technology adopts an integrated power distribution cabinet, an integrated battery cabinet and an integrated UPS cabinet.

The third step: finishing the setting of the machine room illumination;

the illumination design of the machine room meets the requirements of the illumination, uniformity and glare limiting standards, the average illumination is taken as 300Lx, 600 × 600 LEDs are selected for illumination, and the average illumination is arranged right above the walkways at the front and the rear of the machine cabinet to meet the operation requirements.

The fourth step: and finishing planning the machine room grounding system.

The method for finishing the planning of the machine room grounding system comprises the following steps:

s1: determining the specific index requirement of the ground wire;

the safety ground of the alternating current distribution system, the equipment working ground and the lightning protection ground of the main distribution frame adopt combined grounding, and the grounding resistance is not more than 1 omega.

S2: determining the grounding requirement of the terminal equipment;

the computer terminal is provided with an alternating current power supply only by a live wire and a zero line, and the computer terminal protective earth wire can not use the protective earth wire of an alternating current power distribution system and needs to be connected with a switch GND.

S3: determining the lightning protection ground wire requirement of a main distribution frame;

the excess charges caused by abnormal conditions can be released, the requirement of national standard on the grounding of the distribution frame is met, and the external cable shielding layer is connected with the lightning protection ground at the main distribution frame.

S4: and (6) integral grounding treatment.

Grounding treatment: the connecting cable from the grounding bar to the grounding screw rod on the equipment adopts a copper core, and the length is shortened as much as possible. All grounding connections should be corrosion protected. The ground screw must be mechanically fastened.

The fifth step includes the steps of:

the first step is as follows: planning the laying of information cables of the comprehensive wiring system of the machine room;

weak current cables are laid by the bridge above the cabinet; the broadcasting cable with low-voltage electrical characteristics is separately laid on the second layer of the bridge frame and is not in common layer with other weak current cables; the equipment jumper in the cabinet adopts an upper-inlet and upper-outlet mode. The optical jumper and the RJ45 jumper are strictly separated and routed and respectively laid in the bridge frames.

The second step is that: a comprehensive wiring system;

the optical path and the circuit are laid separately; the distance of 50CM is needed to be bound and fixed by a binding belt, so that the routing is beautiful and is beneficial to arrangement; the corner routing has a certain radian and is close to the inner side routing.

The third step: arranging and planning the comprehensive wiring cabinet;

in the cable termination and cable management, the requirement of the cable management label is clear and tidy, and managers can see clearly. Tidying the wires; when the cable is managed, the user should not pull the cable to draw the cable. Through the bundling treatment of various tools, under the condition that a wire arranging tool can be used, the operation is not needed by hands as much as possible, the cables are ensured not to be broken, knotted and twisted, and the cables are 'horizontally flat and vertically not crossed' after being arranged; under the condition that the condition allows, the cable clamp can be used without a ribbon. The ribbon is disposable, and later stage is examined and need be cut off, easy fish tail cable. Black adhesive tapes, magic tape tapes and the like are relatively more practical than nylon tapes, and the tapes can be bound neither too tightly nor too loosely; and testing and inspecting after the cable is arranged, so that smoothness of the cable is ensured. Even if the reverse wire arrangement is tested in advance, the wire connection is still tested again after the wire connection is completed, so that the daily operation is ensured to be free from interference.

The fourth step: and (5) color separation planning of the comprehensive wiring system.

The station room ticket system uses grey-white six-type network cables, and other systems are all blue six-type network cables before entering the information machine room; and (3) carrying out jumper color separation planning between the information machine room and the wiring: the jumper ticket system in the machine room is an off-white network jumper; the customer service system can use different systems to perform color separation and jumper, and is divided into a service platform, a guidance display system, a broadcast system, a video monitoring system, an automatic ticket checking system and an office system.

The main materials are as follows: the full-steel anti-static movable floor with the edgeless ceramic surface, the ceramic floor tiles, the special metal anti-static wallboard, the high-grade aluminum alloy micropore square plate, the integrated power distribution cabinet, the integrated battery cabinet, the integrated UPS cabinet, the precise air conditioner, the LED square lamp, the smoke sensor, the point type temperature sensor, the audible and visual alarm, the access control system, the bare copper wire, various network cables, optical fibers, epoxy resin paint, the light steel keel, a wire clamp, a binding belt and the like.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.