CN110397177B - U-shaped anti-seismic steel frame of composite steel and construction method - Google Patents
U-shaped anti-seismic steel frame of composite steel and construction method Download PDFInfo
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- CN110397177B CN110397177B CN201910729412.1A CN201910729412A CN110397177B CN 110397177 B CN110397177 B CN 110397177B CN 201910729412 A CN201910729412 A CN 201910729412A CN 110397177 B CN110397177 B CN 110397177B
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- steel
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- composite steel
- pipe frame
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 82
- 239000010959 steel Substances 0.000 title claims abstract description 82
- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 238000010276 construction Methods 0.000 title claims abstract description 9
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 49
- 239000004576 sand Substances 0.000 claims abstract description 18
- 239000010935 stainless steel Substances 0.000 claims abstract description 18
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 18
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims description 18
- 230000035939 shock Effects 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 claims description 2
- 239000003973 paint Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- RECVMTHOQWMYFX-UHFFFAOYSA-N oxygen(1+) dihydride Chemical compound [OH2+] RECVMTHOQWMYFX-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to a composite steel U-shaped anti-seismic steel frame and a construction method, wherein the composite steel U-shaped anti-seismic steel frame comprises a U-shaped composite steel pipe frame, the composite steel pipe frame comprises a stainless steel inner layer, a structural steel layer and a stainless steel outer layer which are sequentially arranged from inside to outside, the pipe wall thickness of the structural steel layer is larger than that of the stainless steel inner layer and the stainless steel outer layer, sea sand concrete is filled in the composite steel pipe frame, column feet are arranged at two ends of the composite steel pipe frame, the composite steel pipe frame comprises two pipe frame units which are symmetrically arranged left and right, the column feet are welded at the tail ends of vertical parts of the two pipe frame units, the outer ends of arc-shaped parts of the two pipe frame units are connected through memory alloy sleeves, and the column feet are anchored on the ground through T-shaped memory alloy anchor rods.
Description
Technical Field
The invention relates to a U-shaped anti-seismic steel frame of composite steel and a construction method.
Background
The steel pipe concrete has the advantages of high bearing capacity, good ductility and high rigidity, and is widely applied to factory structures for directly bearing dynamic loads (heavy working cranes). However, there are the following problems when using the member in coastal areas: 1) The water and chloride ion concentration in the air is higher, the external steel pipe is easy to erode, the common treatment method is to paint anticorrosive paint regularly or adopt stainless steel pipes, the maintenance cost in the whole life cycle of the stainless steel pipes is higher due to the fact that the anticorrosive paint is painted regularly, and the price of the stainless steel pipes is higher, so that the construction cost of the structure is directly increased; 2) River sand is one of the indispensable raw materials for manufacturing concrete, but river sand resources are about to be exhausted, the river sand price in the market at present is about 300 yuan per square meter, the main solution is to purify sea sand, reduce the chloride ion concentration of the sea sand, but the sea sand desalination cost is higher, and a large amount of fresh water resources are required to be consumed; 3) Fatigue damage easily occurs to the main body structure or the joint under the action of the reciprocating load of a heavy-level working crane and the like, so that certain shock absorption and insulation measures are necessary.
Disclosure of Invention
The invention provides a U-shaped anti-seismic steel frame of composite steel and a construction method.
The invention solves the technical problems by adopting the scheme that the U-shaped anti-seismic steel frame comprises a U-shaped composite steel pipe frame, wherein the composite steel pipe frame comprises a stainless steel inner layer, a structural steel layer and a stainless steel outer layer which are sequentially arranged from inside to outside, sea sand concrete is filled in the composite steel pipe frame, and column bases are arranged at two ends of the composite steel pipe frame.
Further, the composite steel pipe frame comprises two pipe frame units which are symmetrically arranged left and right, column bases are welded at the tail ends of the vertical parts of the two pipe frame units, and the outer ends of the arc parts of the two pipe frame units are connected through memory alloy sleeves.
Further, the memory alloy sleeve is internally provided with an internal thread which is in threaded connection with the pipe rack units, the arc-shaped part of the pipe rack units is spliced with the memory alloy sleeve, and a metal shock insulation pad is arranged between the two pipe rack units in the pipe rack units.
Further, the column base includes a plurality of diaphragms that from top to bottom interval set up, and the diaphragm that is located the below is the bottom plate, and diaphragm suit is at compound steel pipe frame tip, and the bottom plate seals compound steel pipe frame tip, is provided with the stiffening rib between two adjacent diaphragms, and the stiffening rib is connected with adjacent diaphragm and compound steel pipe frame, and each diaphragm periphery corresponds and is provided with the anchor eye that is favorable to the stock to pass.
Further, at least 4 stiffening ribs are uniformly distributed on the circumference between two adjacent transverse plates.
Further, the structural steel layer adopts carbon steel structural steel or low alloy structural steel.
Further, the column base is anchored on the ground through a T-shaped memory alloy anchor rod.
Further, the periphery of the T-shaped memory alloy anchor rod is sleeved with a rubber sleeve.
A construction method of a U-shaped anti-seismic steel frame of composite steel comprises the following steps:
step 1: a column base is welded at the tail end of the vertical part of the pipe support unit;
step 2: pouring sea sand concrete into the pipe rack unit;
step 3: a metal shock insulation cushion made of a metal spring is arranged in the memory alloy sleeve, and then the memory alloy sleeve with the metal shock insulation cushion arranged inside is expanded to an inner diameter larger than the outer diameter of the pipe rack unit in a local heating mode;
step 4: the outer ends of the arc-shaped parts of the two pipe rack units are inserted into the left side and the right side of the memory alloy sleeve, and reliable connection is formed after the memory alloy sleeve is cooled and contracted, so that a composite steel pipe rack is formed;
step 5: wrapping a rubber sleeve outside the T-shaped memory alloy anchor rod, embedding the T-shaped memory alloy anchor rod wrapped with the rubber sleeve below the concrete ground, and exposing part of the anchor rod above the ground;
step 6: and hoisting the composite steel pipe frame, and connecting the column feet with the exposed parts of the T-shaped memory alloy anchor rods through bolts to anchor the composite steel pipe frame on the ground.
Compared with the prior art, the invention has the following beneficial effects: simple structure, reasonable in design has good durability, economic nature and shock resistance, can resist bigger wind load.
Drawings
The patent of the invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a composite steel pipe rack;
FIG. 2 is a schematic view of section A-A of FIG. 1;
FIG. 3 is a schematic view of a T-shaped memory alloy anchor rod with an outer wrap rubber sleeve;
FIG. 4 is a schematic view of a memory alloy sleeve with a built-in metal shock insulation pad.
In the figure: 1-a pipe rack unit; 2-T-shaped memory alloy anchor rod; 3-a memory alloy sleeve; 4-concrete floor; 11-composite steel pipes; 12-sea sand concrete; 13-stiffeners; 14-a cross plate; 15-anchor holes; 16-a bottom plate; 21-an anchor body; 22-rubber sleeve; 23-bolts; 31-sleeve body; 32-metal shock insulation pad.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1-4, the composite steel U-shaped anti-seismic steel frame comprises a U-shaped composite steel pipe frame, wherein the composite steel pipe frame comprises a stainless steel inner layer, a structural steel layer and a stainless steel outer layer which are sequentially arranged from inside to outside, the pipe wall thickness of the structural steel layer is greater than that of the stainless steel inner layer and the stainless steel outer layer, sea sand concrete is filled in the composite steel pipe frame, and column bases are arranged at two ends of the composite steel pipe frame.
In this embodiment, compound steel pipe frame includes two pipe support units that bilateral symmetry set up, and the column shoe welds at the vertical portion end of two pipe support units, and the arc portion outer end of two pipe support units is connected through the memory alloy sleeve, utilizes memory alloy's shape memory effect, and shape memory alloy sleeve can conveniently reliably link together two prefabricated pipe support units, also can conveniently dismantle when compound steel pipe support is impaired.
In this embodiment, set up the internal thread that carries out the spiro union with the pipe support unit in the memory alloy sleeve, the arc portion and the memory alloy sleeve grafting of pipe support unit, set up in the pipe support unit between two pipe support units and be provided with the metal shock insulation pad, the metal shock insulation pad can prevent that two prefabricated pipe support units from bumping when the installation to improve its resistance to dynamic load's performance when using, the metal shock insulation pad is by the metal spring preparation, can not destroy and drop when the telescopic diameter of shape memory alloy.
In this embodiment, the column shoe includes a plurality of diaphragms that from top to bottom interval set up, be located the diaphragm of below and be the bottom plate, diaphragm suit is at compound steel pipe frame tip, the bottom plate seals compound steel pipe frame tip, be provided with the stiffening rib between two adjacent diaphragms, the stiffening rib is connected with adjacent diaphragm and compound steel pipe frame, each diaphragm periphery corresponds and is provided with the anchor eye that is favorable to memory alloy stock to pass, super elastic memory alloy stock's deformability is good, through setting up diaphragm, the bottom plate and rubber sleeve after this stock have longer free extension length, can consume energy in a large number, thereby improve the shock resistance of this type of structure.
In this embodiment, at least 4 stiffening ribs are uniformly distributed circumferentially between two adjacent transverse plates.
In this embodiment, the structural steel layer is carbon steel structural steel or low alloy structural steel.
In this embodiment, the toe is anchored to the ground via a T-shaped memory alloy anchor.
In the embodiment, the periphery of the T-shaped memory alloy anchor rod is sleeved with a rubber sleeve.
In the embodiment, the composite steel pipe frame adopts a stainless steel-structural steel-stainless steel composite steel pipe, stainless steel thin steel pipes with better corrosion resistance are adopted outside and inside, thicker traditional carbon structural steel or low alloy structural steel is adopted inside, three steel pipes can be manufactured into the composite steel pipe by adopting the prior known methods of mechanical rolling, explosion compounding, drawing compounding, hydraulic compounding and the like, the price of the steel pipe is only two thirds of that of a pure stainless steel pipe, the composite steel pipe with better corrosion resistance is adopted, the capability of the steel pipe for resisting harmful mediums outside and inside can be improved, the outside of the composite steel pipe frame does not need to be coated with rust-proof paint like the traditional steel pipe concrete, sea sand concrete with higher chloride ion content can be used inside, namely sea sand does not need to be desalted, so that the problems of higher price of river sand and higher corrosiveness of sea sand are solved, and the engineering cost of the concrete is greatly reduced.
In this embodiment, in order to improve the anti-seismic performance of the component, the outer ends of the arc-shaped parts of the two pipe rack units are connected through the memory alloy sleeve, and the T-shaped super-elastic memory alloy anchor rod wrapped with the rubber sleeve is also arranged at the column foot position, so that the composite steel pipe rack is endowed with good durability, economy and anti-seismic performance.
In the embodiment, the top of the building adopting the U-shaped composite steel pipe frame presents an arched roof, and when the sagittal span is relatively large, the surface wind pressure coefficient of the arched roof is smaller than that of a traditional inclined roof building, so that the arched roof can resist larger wind load.
A construction method of a U-shaped anti-seismic steel frame of composite steel comprises the following steps:
step 1: a column base is welded at the tail end of the vertical part of the pipe support unit;
step 2: pouring sea sand concrete into the pipe rack unit;
step 3: a metal shock insulation cushion made of a metal spring is arranged in the memory alloy sleeve, and then the memory alloy sleeve with the metal shock insulation cushion arranged inside is expanded to an inner diameter larger than the outer diameter of the pipe rack unit in a local heating mode;
step 4: the outer ends of the arc-shaped parts of the two pipe rack units are inserted into the left side and the right side of the memory alloy sleeve, and reliable connection is formed after the memory alloy sleeve is cooled and contracted, so that a composite steel pipe rack is formed;
step 5: wrapping a rubber sleeve outside the T-shaped memory alloy anchor rod, embedding the T-shaped memory alloy anchor rod wrapped with the rubber sleeve below the concrete ground, and exposing part of the anchor rod above the ground;
step 6: and hoisting the composite steel pipe frame, and connecting the column feet with the exposed parts of the T-shaped memory alloy anchor rods through bolts to anchor the composite steel pipe frame on the ground.
While the foregoing is directed to the preferred embodiment, other and further embodiments of the invention will be apparent to those skilled in the art from the following description, wherein the invention is described, by way of illustration and example only, and it is intended that the invention not be limited to the specific embodiments illustrated and described, but that the invention is to be limited to the specific embodiments illustrated and described.
Claims (4)
1. A compound steel U-shaped antidetonation steelframe, its characterized in that: the composite steel pipe frame comprises a stainless steel inner layer, a structural steel layer and a stainless steel outer layer which are sequentially arranged from inside to outside, sea sand concrete is filled in the composite steel pipe frame, and column feet are arranged at two ends of the composite steel pipe frame;
the composite steel pipe frame comprises two pipe frame units which are symmetrically arranged left and right, column feet are welded at the tail ends of the vertical parts of the two pipe frame units, and the outer ends of the arc parts of the two pipe frame units are connected through a memory alloy sleeve;
the memory alloy sleeve is internally provided with internal threads which are in threaded connection with the pipe rack units, the arc-shaped parts of the pipe rack units are in plug connection with the memory alloy sleeve, and a metal shock insulation pad is arranged between the two pipe rack units in the pipe rack units and is made of metal springs;
the structural steel layer adopts carbon steel structural steel or low alloy structural steel;
the column base is anchored on the ground through a T-shaped memory alloy anchor rod;
the periphery of the T-shaped memory alloy anchor rod is sleeved with a rubber sleeve.
2. The composite steel U-shaped earthquake-resistant steel frame of claim 1 wherein: the column base comprises a plurality of transverse plates which are arranged from top to bottom at intervals, the transverse plate positioned at the lowest part is a bottom plate, the transverse plates are sleeved at the end part of the composite steel pipe frame, the bottom plate seals the end part of the composite steel pipe frame, stiffening ribs are arranged between two adjacent transverse plates, the stiffening ribs are connected with the adjacent transverse plates and the composite steel pipe frame, and anchor holes which are beneficial to the anchor rods to pass through are correspondingly formed in the peripheries of the transverse plates.
3. The composite steel U-shaped earthquake-resistant steel frame of claim 2 wherein: at least 4 stiffening ribs are uniformly distributed on the circumference between two adjacent transverse plates.
4. A construction method of a composite steel U-shaped earthquake-resistant steel frame, which adopts the composite steel U-shaped earthquake-resistant steel frame as claimed in claim 3, and is characterized by comprising the following steps:
step 1: a column base is welded at the tail end of the vertical part of the pipe support unit;
step 2: pouring sea sand concrete into the pipe rack unit;
step 3: a metal shock insulation cushion made of a metal spring is arranged in the memory alloy sleeve, and then the memory alloy sleeve with the metal shock insulation cushion arranged inside is expanded to an inner diameter larger than the outer diameter of the pipe rack unit in a local heating mode;
step 4: the outer ends of the arc-shaped parts of the two pipe rack units are inserted into the left side and the right side of the memory alloy sleeve, and reliable connection is formed after the memory alloy sleeve is cooled and contracted, so that a composite steel pipe rack is formed;
step 5: wrapping a rubber sleeve outside the T-shaped memory alloy anchor rod, embedding the T-shaped memory alloy anchor rod wrapped with the rubber sleeve below the concrete ground, and exposing part of the anchor rod above the ground;
step 6: and hoisting the composite steel pipe frame, and connecting the column feet with the exposed parts of the T-shaped memory alloy anchor rods through bolts to anchor the composite steel pipe frame on the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910729412.1A CN110397177B (en) | 2019-08-08 | 2019-08-08 | U-shaped anti-seismic steel frame of composite steel and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910729412.1A CN110397177B (en) | 2019-08-08 | 2019-08-08 | U-shaped anti-seismic steel frame of composite steel and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110397177A CN110397177A (en) | 2019-11-01 |
| CN110397177B true CN110397177B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910729412.1A Active CN110397177B (en) | 2019-08-08 | 2019-08-08 | U-shaped anti-seismic steel frame of composite steel and construction method |
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| CN112459589A (en) * | 2020-10-23 | 2021-03-09 | 四川省建筑科学研究院有限公司 | Wind-resistant device and shock insulation layer adopting same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201242002Y (en) * | 2008-07-30 | 2009-05-20 | 张谭伟 | Connecting structure of cement stainless steel composite pipe |
| CN105240626A (en) * | 2015-09-18 | 2016-01-13 | 南京联众建设工程技术有限公司 | Prefabricated assembled steel-concrete composite structure pipeline and manufacturing method thereof |
| CN107288216A (en) * | 2017-06-29 | 2017-10-24 | 同济大学 | A kind of self-resetting swinging reinforced column based on marmem |
| CN206721909U (en) * | 2017-02-28 | 2017-12-08 | 山东科技大学 | A kind of exposed axial compression pipe suspension column node connecting structure |
| CN210482638U (en) * | 2019-08-08 | 2020-05-08 | 福州大学 | Composite steel U-shaped anti-seismic steel frame |
-
2019
- 2019-08-08 CN CN201910729412.1A patent/CN110397177B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201242002Y (en) * | 2008-07-30 | 2009-05-20 | 张谭伟 | Connecting structure of cement stainless steel composite pipe |
| CN105240626A (en) * | 2015-09-18 | 2016-01-13 | 南京联众建设工程技术有限公司 | Prefabricated assembled steel-concrete composite structure pipeline and manufacturing method thereof |
| CN206721909U (en) * | 2017-02-28 | 2017-12-08 | 山东科技大学 | A kind of exposed axial compression pipe suspension column node connecting structure |
| CN107288216A (en) * | 2017-06-29 | 2017-10-24 | 同济大学 | A kind of self-resetting swinging reinforced column based on marmem |
| CN210482638U (en) * | 2019-08-08 | 2020-05-08 | 福州大学 | Composite steel U-shaped anti-seismic steel frame |
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