CN201526326U - Baud board tunnel fireproofing structure - Google Patents

Abstract

The utility model provides a baud board tunnel fireproofing structure comprising concrete, a first baud fireproofing board, a second baud fireproofing board, rock wool, an Omega-type keel, a stainless steel expansion bolt and a self-tapping screw, wherein the Omega-type keel is riveted on the concrete through the stainless steel expansion bolt, the first baud fireproofing board and the second baud fireproofing board are mutually superposed and then fixed on the Omega-type keel through the self-tapping screw, an inner clearance of the Omega-type keel between the concrete and the first baud fireproofing board is filled with the rock wool, a clearance between the first baud fireproofing board and the second baud fireproofing board is sealed by a neutral silicone sealant; and the outer surface of the second baud fireproofing board is coated with an outer decoration. By utilizing the structure, the baud fireproofing board can meet the instantaneous temperature rise when a fire occurs in a tunnel, can resist strong wind and shake generated when vehicles passing though and can not fall off; and the material selectively used in the fireproofing structure does not release toxic gas harmful to human health and the fireproofing structure is water-proof, and has good moisture resistance.

Description

A kind of baud plate tunnel fire proofing structure

Technical field:

The utility model relates to fire prevention mounting technique field, refers in particular to a kind of baud plate tunnel fire proofing structure.

Background technology:

Tunnel and other transportation facilities have become the important way of Modern Traffic, and the tunnel realizes that with it target range is the shortest.Floor space is few, and to natural environment, landscape destruction degree minimum, characteristics such as cost is relatively low are planned, construction and projector's concern.Mention the tunnel, people only expect infrastructure such as highway and railway usually, are in fact to contain all underground concrete structure buildings.For example: underground pedestrian walk, subway station, underground parking, underground storehouse etc.Generally supported by concrete in the tunnel, we can think that concrete itself has noninflammability usually, thereby there is no need its structure is taken precautions against fire.The lesson of the fire in lot of domestic and international tunnel reminds us must consider performance and the reaction of concrete under the fire condition but regrettably.Tunnel structure generally is to be made up and formed by cement, sandstone, steel concrete, and when being subjected to 600 ℃ of temperature effects, concrete loss of strength reaches more than 50%, and the yield stress of steel drops to below 1/3 of normal temperature.And in the tunnel during breaking out of fire temperature generally all more than 1000 ℃, tunnel structure is difficult to bear this high temperature, serious part will burn down, it is airtight relatively to add tunnel environment, wagon flow, people's current density is big, in case breaking out of fire, the evacuation and the quite difficulty of putting out a fire to save life and property, can cause great casualties and property loss, have the way of using fire-proof coating for tunnels at China's measures against tunnel fire, but because the defective that the characteristics that this coating itself exists cause, for example: when using the coating fire prevention, as press the intensification of ISO834 curve, and refractoriness will reach 3 hours, and general paint coatings thickness needs 20-30mm; And because coating is thicker, need repeatedly spraying, constructional difficulties, if heat up by hydrocarbon curve, fire-proof coating for tunnels can not bear the thermal shock that is rapidly heated, and may explosion just take place in a few minutes, can not satisfy the special fire protection requirement in tunnel; Coating fireproof adhesion strength is low, and the adhesion strength of fire-proof coating for tunnels is generally 0.1Mpa, when vehicle passes through in the tunnel, can produce high wind and vibrations, can not satisfy the actual needs in tunnel; Do not pay attention to the coating toxicity research when using the coating fire prevention, in case breaking out of fire will influence the personnel and the person's of putting out a fire to save life and property safety; Coating fireproof water resistance is relatively poor, and coating is in the wet environment in tunnel, the ponding that can absorb water, even thereby come off.

Summary of the invention:

The purpose of this utility model is to overcome the deficiency of present technology, providing that instantaneous intensification, 3min reach in the time of satisfying tunnel fire hazard＞850 ℃ HC heating curve requires, easy construction is reliable, high wind that produces in the time of can resisting vehicle pass-through and vibrations and can not come off, material that fire proof construction is selected do not have when fire takes place that the healthy poisonous gas of the person of speaking sarcastically discharges and fire proof construction is water-fast, a kind of baud PLASTIC LAMINATED tunnel fire proofing structure that anti-moisture performance is good.

For achieving the above object, technical scheme provided by the utility model is: a kind of baud plate tunnel fire proofing structure, it includes concrete, it also includes the first baud PLASTIC LAMINATED, the second baud PLASTIC LAMINATED, rock wool, Omega type keel, the stainless steel expansion bolt, self-tapping screw, wherein, Omega type keel pass through stainless steel expansion bolt rivet clasp on concrete, be fixed on the Omega type keel by self-tapping screw after the first baud PLASTIC LAMINATED and the second baud PLASTIC LAMINATED mutual superposition, Omega type keel internal clearance place between the concrete and the first baud PLASTIC LAMINATED is filled with rock wool, and the place, slit of the first baud PLASTIC LAMINATED and the second baud PLASTIC LAMINATED seals with the neutral silicone fluid sealant; The second baud PLASTIC LAMINATED external surface scribbles outer the decoration.

Described outer the decoration is acrylic coating, mineral coating or fluorocarbon coating.

The described first baud PLASTIC LAMINATED and the second baud PLASTIC LAMINATED are installed on the Omega type keel with the tapping screw fissure of displacement respectively by different-thickness.

Described first, second baud PLASTIC LAMINATED by high purity silicon and high active calcium aquation in addition a small amount of arbor fiber in the automatic forming machine, make dull and stereotyped back and in the autoclave of 1Mpa＞180 ℃, be made.

Described rock wool is to be formed with the high pressure draught blowing after fusion by diabase and the discarded country rock stone of nonmetallic ore.

After having adopted said structure, instantaneous intensification when the baud PLASTIC LAMINATED can satisfy tunnel fire hazard, 3min reaches＞850 ℃ HC heating curve requirement, coating on outer the decoration is except fire prevention, bright as the light yellow tunnel that makes, also can adopt inwall different colours up and down, to obtain the good visual effect, and high wind that produces in the time of can resisting vehicle pass-through and vibrations and can not come off, the selected material of fire proof construction does not have the healthy poisonous gas of the person of speaking sarcastically and discharges when fire takes place, and fire proof construction is water-fast, a kind of baud PLASTIC LAMINATED tunnel fire proofing structure that anti-moisture performance is good.

Description of drawings:

Fig. 1 is the utility model overall schematic.

Reference numeral: 1-concrete, the 2-first baud PLASTIC LAMINATED, 3-rock wool, 4-Omega type keel, 5-stainless steel expansion bolt, 6-M4 self-tapping screw, 7-neutral silicone fluid sealant, the 8-second baud PLASTIC LAMINATED, 9-decorate outward.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing 1, preferred embodiment of the present utility model is: a kind of baud PLASTIC LAMINATED tunnel fire proofing structure, it includes concrete (1), it is characterized in that: it also includes the first baud PLASTIC LAMINATED (2), the second baud PLASTIC LAMINATED (8), rock wool (3), Omega type keel (4), stainless steel expansion bolt (5), M4 self-tapping screw (6), baud PLASTIC LAMINATED (2) by high purity silicon and high active calcium aquation in addition a small amount of arbor fiber in the automatic forming machine, make dull and stereotyped back and in the autoclave of 1Mpa＞180 ℃, be made; Rock wool (3) is to be formed with the high pressure draught blowing after fusion by diabase and the discarded country rock stone of nonmetallic ore; Outer decoration (9) is acrylic coating, mineral coating or fluorocarbon coating; During installation, the removing surface in tunnel is smooth, repaired unwrapping wire behind hole and the smooth place, require to carry out unwrapping wire according to design size in working face, the location, as overhead 〉=position that 150mm installs 50 * 50mm Zinc-coated angle steel begins, every 600mm installs Omega keel 4.Be anchored on concrete, screw-in depth 〉=25mm with M6 stainless steel expansion bolt 6 both wings with Omega keel 4; The thick baud PLASTIC LAMINATED of 12mm is anchored on should revolve on the Omega keel 4 with the M4 self threading pin sinks to plate face 0.5mm.The fissure of displacement is installed together the thick baud PLASTIC LAMINATED of 9mm then, and screw spacing 300mm notes slightly staggering and avoids bumping together, revolves and sinks to plate face 0.5mm.The cavity densification of the thick rock cotton board 3 of 30mm being put into plate and Omega keel 4 is real.Refill the first baud PLASTIC LAMINATED 2 and the second baud PLASTIC LAMINATED 8 then; Will be installed in one at the initial plate of terrace is pre-installed on concrete 50 * 50 Zinc-coated angle steels and (on terrace 〉=150mm), makes the plate built on stilts be beneficial to the maintenance of ground installation.The fast joint sealing material of must consolidating of Kong Weiyong that plate face tapping screw is screwed in the 0.5mm that avales is filled and led up; The outer decoration: the sheet material to fire prevention system carries out outer the decoration, can sand flat plate surface and coat alkali-resisting primer and face after the arrangement and be coated with and get final product, should select the fluorocarbon coating of air drying for use, and construct by paint supply merchant's regulation, work progress applied metal support builds up movably, and platform pushes up to guarantee the smooth and safety operation of construction with propping up, a large amount of sheet material screw location can be operated after the line of ground again, the fire-resistant check of baud PLASTIC LAMINATED tunnel fire proofing system, aforesaid fire prevention system structure have reached the fire resistance period of 150min by the security performance check at national fireproof building material quality supervision and test center.(survey report: 200820394) test basis: GA/T 714-2007 " member with flameproof protection material be rapidly heated fire resistance test method " adopts the HC heating curve.To the baud PLASTIC LAMINATED---asbestos-free calcium silicate board tunnel concrete protection system fire resistance test period when complete thick 51mm is 2.5h (150min).The formation of the fire retarding component of test is followed successively by the thick 150mm omega of C30 concrete plate keel 50 * 50 * 0.8mm, M6 expansion bolt new element baud BoTe plate 12mm+9mm M4 self-tapping screw rock wool unit weight 100kg/m ³Thick 30mm inserts in the cavity of concrete and baud PLASTIC LAMINATED, imposes compacted.Check is adopted hydrocarbon (HC) heating curve to rise to 1100 ℃ subsequently above 1000 ℃ when 3min heats up above 800 ℃ of 10min and is retained to 150min always, and the temperature on the actual measurement concrete bottom is 103 ℃ when 150min; Maximum temperature is 93 ℃ on the interior 25mm topping steel mesh reinforcement bottom surface of concrete slab.Above-mentioned assay reaches concrete protection purpose fully.Also deducibility also can be protected concrete component safely burning to 180min.

The embodiment of the above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, so the variation that all shapes according to the utility model, principle are done all should be covered by in the protection domain of the present utility model.

Claims (5)

1. baud plate tunnel fire proofing structure, it includes concrete (1), it is characterized in that: it also includes the first baud PLASTIC LAMINATED (2), the second baud PLASTIC LAMINATED (8), rock wool (3), Omega type keel (4), stainless steel expansion bolt (5), self-tapping screw (6), wherein, Omega type keel (4) pass through stainless steel expansion bolt (5) rivet clasp on concrete (1), be fixed on the Omega type keel (4) by self-tapping screw (6) after the first baud PLASTIC LAMINATED (2) and second baud PLASTIC LAMINATED (8) mutual superposition, Omega type keel (4) internal clearance place between the concrete (1) and the first baud PLASTIC LAMINATED (2) is filled with rock wool (3), and the place, slit of the first baud PLASTIC LAMINATED (2) and the second baud PLASTIC LAMINATED (8) seals with neutral silicone fluid sealant (7); Second baud PLASTIC LAMINATED (8) surface scribbles outer decorate (9).

2. a kind of baud plate tunnel fire proofing structure according to claim 1 is characterized in that: outer decoration (9) is acrylic coating, mineral coating or fluorocarbon coating.

3. a kind of baud plate tunnel fire proofing structure according to claim 1 is characterized in that: the first baud PLASTIC LAMINATED (2) and the second baud PLASTIC LAMINATED (8) use tapping screw (6) fissure of displacement to be installed on the Omega type keel (4) respectively by different-thickness.

4. a kind of baud plate tunnel fire proofing structure according to claim 1 is characterized in that: first, second baud PLASTIC LAMINATED (2,8) by high purity silicon and high active calcium aquation in addition a small amount of arbor fiber in the automatic forming machine, make dull and stereotyped back and in the autoclave of 1Mpa＞180 ℃, be made.

5. a kind of baud plate tunnel fire proofing structure according to claim 1 is characterized in that: rock wool (3) is to be formed with the high pressure draught blowing after fusion by diabase and the discarded country rock stone of nonmetallic ore.

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