CN104929315B - A civil engineering building pillar - Google Patents

Abstract

The invention discloses a kind of civil engineering work pillars,Including support column and steel structure frame,It is provided with two positioning plates on the inside of steel structure frame,Support column is plugged between two positioning plates,Steel structure frame and support column are fixedly connected by fastener,Lower supporting plate and upper backup pad are equipped in support column,Concrete cover is provided with above upper backup pad,The area of lower supporting plate is less than the area of upper backup pad,Support column lateral layout is stairstepping contact surface,Space between lower supporting plate and upper backup pad is cast with concrete strengthening body,Several pile columns and supporting rod are provided in concrete strengthening body,Pile and supporting rod are arranged in a mutually vertical manner,Antiseepage bitumen layer is provided on the outside of concrete strengthening body,37 lime earth layer is provided between lower supporting plate and concrete strengthening body,Support column is wrapped with concrete lift,The concrete lift trypsin method has fire and heat endurance dope layer.Load-bearing capacity of the present invention is strong, and service life is long, and has certain flame retardant property.

Description

A civil engineering building pillar

technical field

The invention relates to the field of civil engineering, in particular to a civil engineering building pillar.

Background technique

With the development of cities, high-rise buildings are becoming more and more popular. In high-rise buildings, the building pillar structure of the building needs to bear a large load, resulting in the general structure of the building pillar structure of the building being complex, heavy and inconvenient for transportation.

Contents of the invention

In order to solve the above problems, the present invention provides a civil engineering building pillar.

In order to achieve the above object, the technical scheme that the present invention takes is:

A civil engineering building pillar, including a support column and a steel structure frame. Two positioning plates are arranged inside the steel structure frame, and the support column is inserted between the two positioning plates. The upper part of the side wall of the steel structure frame is designed as an inclined plane, and the lower part of the side wall It is designed as a groove shape, and a fastener is provided at the top center of the steel structure frame and the groove-shaped side walls on both sides. The fasteners connect the steel structure frame and the supporting columns. There is a pouring gate on each side of the gate, and concrete is poured into the gap between the steel structure frame and the support column through the pouring gate. The support column is provided with a lower support plate and an upper support plate, and a concrete cover is provided above the upper support plate. , the area of the lower support plate is smaller than the area of the upper support plate, the side of the support column is designed as a stepped contact surface, the space between the lower support plate and the upper support plate is poured with a concrete reinforcement, and several piles are arranged in the concrete reinforcement Columns and support rods, piles and support rods are arranged perpendicular to each other, an anti-seepage asphalt layer is arranged on the outside of the concrete reinforcement, a layer of notoginseng ash is arranged between the lower support plate and the concrete reinforcement, and the support column is wrapped with a concrete pouring layer , the concrete pouring layer is spray-coated with a fire-resistant and heat-resistant paint layer, and the fire-resistant and heat-resistant paint layer is prepared from the following raw materials in parts by weight:

ABS rubber powder 20-60 parts; AS resin 40-80 parts; flame retardant synergist 2-6 parts; nitrogen flame retardant 5-25 parts; chemical resistance modifier 0.5-5 parts; heat resistance agent 5 -25 parts; 0.1-1 part of antioxidant; 0.1-1 part of lubricant.

Wherein, the ABS rubber powder and AS resin are polymers with low residual single and low oligomer content, the particle diameter of the ABS rubber powder is 0.3-1.1um, and the content of oligomer and residual monomer is less than 110ppm, the weight average molecular weight of AS resin is 7-13W, and the content of oligomer and residual monomer is less than 330ppm.

Wherein, the nitrogen-based flame retardant is melamine phosphate.

Wherein, the chemical resistance modifier is an acrylic additive containing a perfluoroalkyl group.

Wherein, the heat-resistant agent is a copolymer of N-phenylmaleimide.

Wherein, the flame retardant synergist is a mixture of zinc borate, antimony trioxide, antimony pentoxide and sodium antimonate.

Wherein, the weight ratio of zinc borate, antimony trioxide, antimony pentoxide and sodium antimonate is 1:1:1:1.

Wherein, an elastic gasket 10 is arranged between the fastener 7 and the steel structure frame 4 .

Wherein, the lower support plate 11 and the upper support plate 12 are quenched steel plates.

Wherein, the antioxidant is a phosphite antioxidant or a hindered phenolic antioxidant; the lubricant consists of simethicone lubricant, silicone powder, pentaerythritol stearate in a weight ratio of 2:1 :3 Mixed.

The present invention has the following beneficial effects:

The positioning plate can make the support column accurately inserted into the steel structure frame, eliminating installation errors. The upper part of the side wall of the steel structure frame is designed as a slope, which can increase the contact area between the steel structure frame and the external building and increase the bearing capacity. The lower part of the side wall, which is designed as a groove, facilitates the installation of fasteners. The concrete poured in the gap between the steel structure frame and the support column can further strengthen the connection firmness of the steel structure frame and the support column, the anti-seepage curtain can prevent water from penetrating, and the layer of notoginseng ash can prevent the concrete from cracking; The setting can prolong the service life of the building pillar and make it have a certain flame retardant performance.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a civil engineering building pillar according to an embodiment of the present invention.

FIG. 2 is a structural schematic diagram of the support column in FIG. 1 .

Detailed ways

In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1-2, the embodiment of the present invention provides a civil engineering building pillar, including a support column 1 and a steel structure frame 4, two positioning plates 9 are arranged on the inner side of the steel structure frame 4, and the support column 1 is inserted into the two Between the positioning plates 9, the upper part of the side wall of the steel structure frame 4 is designed as an inclined plane, and the lower part of the side wall is designed as a groove shape. Firmware 7, the fastener 7 fixedly connects the steel structure frame 4 and the support column 1, and a sprue 5 is respectively arranged on both sides of the top of the steel structure frame 4, and the steel structure frame 4 and the support column are connected through the sprue 5 1 is poured with concrete 6, and the support column 1 is provided with a lower support plate 11 and an upper support plate 12, and a concrete cover plate 13 is arranged above the upper support plate 12, and the area of the lower support plate 11 is smaller than that of the upper support plate 12. area, the side of the support column 1 is designed as a stepped contact surface 14, and the space between the lower support plate 11 and the upper support plate 12 is poured with a concrete reinforcement 15, and several piles 16 and support rods are arranged in the concrete reinforcement 15 17. Pile columns 16 and support rods 17 are arranged perpendicularly to each other. An anti-seepage asphalt layer 18 is arranged on the outside of the concrete reinforcement body 15. A notoginseng ash layer 19 is arranged between the lower support plate 11 and the concrete reinforcement body 15. The outside of the support column 1 Wrapped with a concrete pouring layer 3, the concrete pouring layer 3 is sprayed with a fire-resistant and heat-resistant coating layer 2, and the fire-resistant and heat-resistant coating layer 2 is prepared from the following raw materials in parts by weight:

ABS rubber powder 20-60 parts; AS resin 40-80 parts; flame retardant synergist 2-6 parts; nitrogen flame retardant 5-25 parts; chemical resistance modifier 0.5-5 parts; heat resistance agent 5 -25 parts; 0.1-1 part of antioxidant; 0.1-1 part of lubricant.

The ABS rubber powder and AS resin are polymers with low residual single and low oligomer content, the particle diameter of the ABS rubber powder is 0.3-1.1um, and the content of oligomers and residual monomers is less than 110ppm. The weight average molecular weight of the AS resin is 7-13W, and the content of oligomers and residual monomers is less than 330ppm.

The nitrogen-based flame retardant is melamine phosphate.

The chemical resistance modifier is an acrylic additive containing a perfluoroalkyl group.

The heat-resistant agent is a copolymer of N-phenylmaleimide.

The flame retardant synergist is a mixture of zinc borate, antimony trioxide, antimony pentoxide and sodium antimonate.

The weight ratio of zinc borate, antimony trioxide, antimony pentoxide and sodium antimonate is 1:1:1:1.

An elastic gasket 10 is arranged between the fastener 7 and the steel frame 4 .

The lower support plate 11 and the upper support plate 12 are quenched steel plates.

Described antioxidant is phosphite antioxidant or hindered phenolic antioxidant; Described lubricant is by weight ratio 2:1:3 by simethicone lubricant, silicone powder, pentaerythritol stearate Mix the proceeds.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims (10)

1. a kind of civil engineering work pillar, which is characterized in that including support column（1）And steel structure frame（4）, steel structure frame （4）Inside is provided with two positioning plates（9）, support column（1）It is plugged on two positioning plates（9）Between, steel structure frame（4）Side wall on Portion is designed as inclined-plane, and lower sidewall is designed as groove type, in steel structure frame（4）Top center and both sides groove type side wall Place is each provided with a fastener（7）, fastener（7）By steel structure frame（4）And support column（1）It is fixedly connected, in steel Structural framing（4）The both sides at top are each provided with a sprue gate（5）, pass through sprue gate（5）To steel structure frame（4）With support Column（1）Gap between be cast with concrete（6）, support column（1）It is interior to be equipped with lower supporting plate（11）And upper backup pad（12）, in upper branch Fagging（12）Top is provided with concrete cover（13）, lower supporting plate（11）Area be less than upper backup pad（12）Area, branch Dagger（1）Lateral layout is stairstepping contact surface（14）, lower supporting plate（11）And upper backup pad（12）Between space be cast with Concrete strengthening body（15）, in concrete strengthening body（15）In be provided with several pile columns（16）And supporting rod（17）, pile （16）And supporting rod（17）It is arranged in a mutually vertical manner, concrete strengthening body（15）Outside be provided with antiseepage bitumen layer（18）, lower branch Fagging（11）With concrete strengthening body（15）Between be provided with 37 lime earth layer（19）, support column（1）Concrete is wrapped with to pour Build layer（3）, the concrete lift（3）Trypsin method has fire and heat endurance dope layer（2）, fire and heat endurance dope layer（2）By following The raw material of parts by weight prepares gained：

20-60 parts of ABS rubber powders；40-80 parts of AS resins；2-6 parts of fire retarding synergist；5-25 parts of nitrogenated flame retardant；Chemically-resistant 0.5-5 parts of product modifying agent；5-25 parts of heat-resistant agent；0.1-1 parts of antioxidant；0.1-1 parts of lubricant.

2. a kind of civil engineering work pillar according to claim 1, which is characterized in that the ABS rubber powders, AS trees Fat is the polymer of low-residue single, low oligomer content, and the grain size of the ABS rubber powders is 0.3-1.1um, oligomer and residual The content of monomer is less than 110ppm, and the weight average molecular weight of AS resins is 7-13W, and the content of oligomer and residual monomer is less than 330ppm。

3. a kind of civil engineering work pillar according to claim 1, which is characterized in that the nitrogenated flame retardant is trimerization Cyanamide phosphate.

4. a kind of civil engineering work pillar according to claim 1, which is characterized in that the chemicals-resistant modifying agent For the acrylic acid series additive containing perfluoroalkyl.

5. a kind of civil engineering work pillar according to claim 1, which is characterized in that the heat-resistant agent is N~phenyl The copolymer of maleimide.

6. a kind of civil engineering work pillar according to claim 1, which is characterized in that the fire retarding synergist is boron The mixture of sour zinc, antimony oxide, antimony pentoxide, sodium antimonate.

7. a kind of civil engineering work pillar according to claim 6, which is characterized in that the zinc borate, three oxidations two Antimony, antimony pentoxide, sodium antimonate weight ratio be 1:1:1:1.

8. a kind of civil engineering work pillar according to claim 1, which is characterized in that the fastener（7）With it is described Steel structure frame（4）Between be provided with elastomeric pad（10）.

9. a kind of civil engineering work pillar according to claim 1, which is characterized in that lower supporting plate（11）With upper support Plate（12）For quenched nickelclad.

10. a kind of civil engineering work pillar according to claim 1, which is characterized in that the antioxidant is phosphorous acid Esters antioxidant or Hinered phenols antioxidant；The lubricant is by dimethyl-silicon oil lubricant, silicone powder, pentaerythrite stearic acid Ester is by weight 2:1:3 mixing gained.