CN103938761A - T-shaped recycled concrete brick block wall with concrete filled steel tubular columns hidden inside and manufacturing method thereof - Google Patents

T-shaped recycled concrete brick block wall with concrete filled steel tubular columns hidden inside and manufacturing method thereof Download PDF

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Publication number
CN103938761A
CN103938761A CN201410146500.6A CN201410146500A CN103938761A CN 103938761 A CN103938761 A CN 103938761A CN 201410146500 A CN201410146500 A CN 201410146500A CN 103938761 A CN103938761 A CN 103938761A
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China
Prior art keywords
brick
concrete
regeneration concrete
steel
regeneration
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CN201410146500.6A
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Chinese (zh)
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CN103938761B (en
Inventor
曹万林
刘熙
刘文超
巩晓雪
朱可睿
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北京工业大学
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Abstract

The invention relates to a T-shaped recycled concrete brick block wall with concrete filled steel tubular columns hidden inside and a manufacturing method thereof, and belongs to the technical field of structural engineering research. The column construction mode with the concrete filled steel tubular columns hidden inside can effectively improve the anti-seismic property of a masonry structure. The recycled concrete brick block wall replaces a traditional masonry wall, anti-seismic and energy-saving integration is achieved, and the recycled concrete brick block wall is suitable for the structural systems of low multi-layer buildings. A concave and convex key meshing connecting mode is used between recycled concrete masonry bricks, so that the integrality of the wall is obviously improved, and the anti-seismic property of the structure is effectively enhanced.

Description

A kind of built-in steel core concrete column T shape regeneration concrete brick blockwork and the practice
Technical field
The present invention relates to a kind of built-in steel core concrete column T shape regeneration concrete brick blockwork and the practice, belong to Structural Engineering studying technological domain.
Technical background
Concrete filled steel tube combines steel and concrete, makes concrete in three dimension stress state, greatly improves concrete bearing capacity, and the concrete of steel duct can prevent again steel pipe generation cripling effectively.Interaction between steel pipe and concrete makes the concrete destruction of steel duct change plastic failure into by brittle fracture, and the ductile performance of member is obviously improved, and energy dissipation capacity improves greatly, has superior anti-seismic performance.
Tradition multi-storey building Hollow Block Masonry Structure Anti-seismic ability is poor, regeneration concrete masonry strength is significantly higher than traditional masonry, can be used for low multi-layer construction structure, bearing capacity is secure, and can make building waste be recycled under the overall background that current building waste sharply increases, country advocates resource recycling.
Constructional column using steel core concrete column as body of wall, between regeneration concrete masonry brick, be connected with concavo-convex key, be made into built-in steel core concrete column regeneration concrete brick blockwork, can significantly strengthen system bearing capacity, obviously improve integrality performance of the structure and anti-seismic performance.
Summary of the invention
The object of the present invention is to provide a kind of built-in steel core concrete column T shape regeneration concrete brick blockwork, this body of wall has the advantages such as simple structure, cheap, easy construction, earthquake-proof energy-saving be integrated, to effectively solving the problems such as traditional low layer, multistory building thermal and insulating performance is poor, shock resistance is weak.
For achieving the above object, the technical solution used in the present invention is a kind of built-in steel core concrete column T shape regeneration concrete brick blockwork and preparation method.Body of wall of the present invention comprises concrete-filled rectangular steel tube constructional column, regeneration concrete brick block; Wherein, regeneration concrete brick blocks shape comprises I-shaped, flute profile, convex, concave-convex; Groove and protruding key are the occlusion structure of brick block joining place.
Particularly, built-in steel core concrete column is placed in body of wall end and longitudinal cross wall junction, and steel core concrete column has been realized with the effective of body of wall and being connected by the groove of regeneration concrete brick block, strengthens overall mechanical property.
Groove, protruding key are set in the end of regeneration concrete brick block, and when multi-form brick block group is built into body of wall, adjacent keyway is engaged, has strengthened the globality of this body of wall.Between regeneration concrete brick block, connect by concavo-convex key, the inside and outside mortar joint of body of wall is not connected, effectively reduced cold bridge effect, improved the heat-insulating property of body of wall.
Steel pipe can adopt Q235, Q345, Q390, Q420 and Q345GJ steel.Steel pipe should adopt helically welded tube and longitudinally-welded pipe, also can adopt seamless welding pipe.Welded pipe must be docked the weld seam that is melt through, and weld strength should be lower than tubing intensity.According to the thickness of steel pipe, select corresponding steel yield strength and Intensity Design value, the selection of its value will be determined according to " encased structures design and construction specification ".In the time of seismic design, the steel yield strength measured value of encased structures and the ratio of tensile strength measured value should not be greater than 0.85, and steel should have obvious surrender step, and elongation rate should not be less than 20%, and it should have good weldability and qualified impact toughness simultaneously.
Concrete in steel pipe can adopt ordinary concrete and self-compacting concrete, and its strength grade should be lower than C30.Concrete shaft center compression resistant, axial tensile strength and modulus of elasticity should meet " encased structures design and construction specification ".
Described regeneration concrete brick strength grade is MU30, MU25, and MU20 and MU15, wherein the match ratio of regeneration concrete can not be applied mechanically merely the match ratio of ordinary concrete, and its water supply volume must consider that the water absorption rate of recycled coarse aggregate carries out proportion design.
Built-in steel core concrete column T shape regeneration concrete brick blockwork, its preparation method is as follows:
S1, by the steel pipe of steel core concrete column, inserts in grade beam by size, cast grade beam concrete.
S2 copies measuring line by grade beam upper surface by house planar dimension, and levelling grade beam upper surface ejects double solid line by the thickness of concrete brick building block.
S3 builds regeneration concrete brick blockwork in grade beam top group, and adjacent regeneration concrete brick block is by groove and protruding key interlock.
S4 is in the time building first floor by laying bricks or stones, place regeneration concrete keyed brick on Ji Zhu limit, vertical wall limit, groove wraps steel pipe column just, shaft opposite side is placed regeneration concrete work shape brick, together with aforementioned regeneration concrete keyed brick and square steel tube concrete column seamless connection, reverse placement regeneration concrete concave-convex brick afterwards, between fill bonding by cement mortar, until longitudinal cross wall intersection is placed one of regeneration concrete convex brick; Second half vertical wall and its symmetry are built by laying bricks or stones; Longitudinal cross wall intersection wraps up the steel pipe column at cross center with two regeneration concrete concave-convex bricks of cross wall, forward build respectively regeneration concrete concave-convex brick by laying bricks or stones afterwards upwards, downwards, during to cross wall end, use regeneration concrete work shape brick and regeneration concrete keyed brick parcel steel pipe column instead.Building by laying bricks or stones of the second layer is equivalent to first floor to carry out clockwise 90 rotations of spending, with the regeneration concrete concave-convex brick of vertical wall, the steel pipe column at cross center is wrapped up, and horizontal wall and joint, cross center start to build by laying bricks or stones with regeneration concrete convex brick, to reach the object of fissure of displacement overlap joint.The masonry way of its top brick in this way successively cross-circulation carry out.Form fissure of displacement overlap joint, rabbet good body of wall.
S5 is in the end of body of wall, forms built-in steel core concrete column to concreting in steel pipe.
Compared with prior art, the present invention has following beneficial effect.
The built-in steel core concrete column T of the present invention shape regeneration concrete brick blockwork is applicable to villages and small towns multistory building; The steel core concrete column of body of wall end and longitudinal cross wall junction, bearing capacity is high, and ductility is good, has effectively strengthened the anti-seismic performance of body of wall; Between regeneration concrete brick block, connect by concavo-convex key, the inside and outside crack of body of wall is not connected, effectively reduced cold bridge effect, improved the heat-insulating property of body of wall; Steel core concrete column is connected by groove with regeneration concrete brick block, between regeneration concrete brick block, connects by concavo-convex key, has effectively strengthened the globality of body of wall, has improved the anti-seismic performance of structure.
Brief description of the drawings
Fig. 1 is T shape wall odd number typical floor plan arrangement diagram.
Fig. 2 is T shape wall even number typical floor plan arrangement diagram.
Fig. 3 is T shape wall schematic three dimensional views.
Fig. 4 is I-shaped regeneration concrete brick schematic diagram.
Fig. 5 is flute profile regeneration concrete brick schematic diagram.
Fig. 6 is concave-convex regeneration concrete brick schematic diagram.
Fig. 7 is convex regeneration concrete brick schematic diagram.
In figure: 1, regeneration concrete work shape brick, 2, regeneration concrete keyed brick, 3, regeneration concrete convex brick, 4, regeneration concrete concave-convex brick, 5, protruding key, 6, groove, 7, square steel tube concrete column.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
As shown in Fig. 1-7, a kind of built-in steel core concrete column T shape regeneration concrete brick blockwork.This body of wall comprises the mortar between regeneration concrete work shape brick 1, regeneration concrete keyed brick 2, regeneration concrete convex brick 3, regeneration concrete concave-convex brick 4, square steel tube concrete column 7 and regeneration concrete brick.
Square steel tube concrete column 7 should be arranged in body of wall end or corner, it is that square steel tube concrete column 7 is other that regeneration concrete keyed brick 2 is placed in wall distolateral, to be connected mutually with square steel tube concrete column 7, regeneration concrete convex brick 3 is all positioned at body of wall corner, and the effect of regeneration concrete work shape brick 1 is square steel tube concrete column 7 to be carried out to transition with regeneration concrete concave-convex brick 4 be connected.Interlocking between protruding key 5 and the groove 6 of regeneration concrete convex brick 3, regeneration concrete concave-convex brick 4 is conducive to improve the globality of body of wall, and reduces cold bridge effect and then strengthened the heat-insulating property of body of wall.
Built-in steel core concrete column T shape regeneration concrete brick blockwork preparation method is as follows.
S1, by the steel pipe of steel core concrete column, inserts in grade beam by size, cast grade beam concrete.
S2 copies measuring line by grade beam upper surface by house planar dimension, and levelling grade beam upper surface ejects double solid line by the thickness of concrete brick building block.
S3 builds regeneration concrete brick blockwork in grade beam top group, and adjacent regeneration concrete brick block is by groove 6 and 5 interlocks of protruding key.
S4 is in the time building first floor by laying bricks or stones, place regeneration concrete keyed brick 2 on Ji Zhu limit, vertical wall limit, groove 6 wraps steel pipe column just, shaft opposite side is placed regeneration concrete work shape brick 1, together with aforementioned regeneration concrete keyed brick 2 and square steel tube concrete column 7 seamless connections, reverse placement regeneration concrete concave-convex brick 4 afterwards, between fill bonding by cement mortar, until longitudinal cross wall intersection is placed 3 one of regeneration concrete convex bricks; Second half vertical wall and its symmetry are built by laying bricks or stones; Longitudinal cross wall intersection wraps up the steel pipe column at cross center 7 with two regeneration concrete concave-convex bricks 4 of cross wall, forward build respectively regeneration concrete concave-convex brick 4 by laying bricks or stones afterwards upwards, downwards, during to cross wall end, use regeneration concrete work shape brick 1 instead and wrap up steel core concrete column 7 with regeneration concrete keyed brick 2.Building by laying bricks or stones of the second layer is equivalent to first floor to carry out clockwise 90 rotations of spending, with the regeneration concrete concave-convex brick 4 of vertical wall, the steel core concrete column at cross center 7 is wrapped up, and horizontal wall and joint, cross center start to build by laying bricks or stones with regeneration concrete convex brick 3, to reach the object of fissure of displacement overlap joint.The masonry way of its top brick in this way successively cross-circulation carry out.Form fissure of displacement overlap joint, rabbet good body of wall.
S5 is in the end of body of wall, forms built-in steel core concrete column to concreting in steel pipe.
Steel pipe can adopt Q235, Q345, Q390, Q420 and Q345GJ steel.While adopting Q235, Q345 and Q345GJ steel and operating temperature to be greater than 0 DEG C, can select B level; When operating temperature during higher than-20 DEG C, should be selected C level lower than 0 DEG C; When operating temperature is during lower than-20 DEG C, should select D level.Adopt Q390 and Q420 steel and operating temperature during higher than-20 DEG C, should select D level lower than 0 DEG C.When operating temperature is during lower than-20 DEG C, should select E level.
Concrete in steel pipe can adopt ordinary concrete and self-compacting concrete, and its strength grade should be lower than C30.
In the time of seismic design, the steel of encased structures should meet the following requirements: the yield strength measured value of steel and the ratio of tensile strength measured value should not be greater than 0.85; Steel should have obvious surrender step, and elongation rate should not be less than 20%; Steel should have good weldability and qualified impact toughness.
Be more than an allusion quotation shape embodiment of the present invention, enforcement of the present invention is not limited to this.

Claims (5)

1. a built-in steel core concrete column T shape regeneration concrete brick blockwork, is characterized in that: this body of wall comprises the mortar between regeneration concrete work shape brick (1), regeneration concrete keyed brick (2), regeneration concrete convex brick (3), regeneration concrete concave-convex brick (4), square steel tube concrete column (7) and regeneration concrete brick;
Square steel tube concrete column (7) should be arranged in body of wall end or corner, it is that square steel tube concrete column (7) is other that regeneration concrete keyed brick (2) is placed in wall distolateral, to be connected mutually with square steel tube concrete column (7), regeneration concrete convex brick (3) is all positioned at body of wall corner, and the effect of regeneration concrete work shape brick (1) is square steel tube concrete column (7) to be carried out to transition with regeneration concrete concave-convex brick (4) be connected; Interlocking between protruding key (5) and the groove (6) of regeneration concrete convex brick (3), regeneration concrete concave-convex brick (4) is conducive to improve the globality of body of wall, and reduces cold bridge effect and then strengthened the heat-insulating property of body of wall.
2. according to the built-in steel core concrete column T of one claimed in claim 1 shape regeneration concrete brick blockwork, built-in steel core concrete column T shape regeneration concrete brick blockwork preparation method, is characterized in that:
S1, by the steel pipe of steel core concrete column, inserts in grade beam by size, cast grade beam concrete;
S2 copies measuring line by grade beam upper surface by house planar dimension, and levelling grade beam upper surface ejects double solid line by the thickness of concrete brick building block;
S3 builds regeneration concrete brick blockwork in grade beam top group, and adjacent regeneration concrete brick block is by groove (6) and protruding key (5) interlock;
S4 is in the time building first floor by laying bricks or stones, place regeneration concrete keyed brick (2) on Ji Zhu limit, vertical wall limit, groove (6) wraps steel pipe column just, shaft opposite side is placed regeneration concrete work shape brick (1), together with aforementioned regeneration concrete keyed brick (2) and square steel tube concrete column (7) seamless connection, reverse placement regeneration concrete concave-convex brick (4) afterwards, between fill bonding by cement mortar, until longitudinal cross wall intersection is placed 3 one of regeneration concrete convex bricks; Second half vertical wall and its symmetry are built by laying bricks or stones; Longitudinal cross wall intersection wraps up the steel pipe column at cross center (7) with two regeneration concrete concave-convex bricks (4) of cross wall, forward build respectively regeneration concrete concave-convex brick (4) by laying bricks or stones afterwards upwards, downwards, during to cross wall end, use regeneration concrete work shape brick (1) and regeneration concrete keyed brick (2) parcel steel core concrete column (7) instead; Building by laying bricks or stones of the second layer is equivalent to first floor to carry out clockwise 90 rotations of spending, with the regeneration concrete concave-convex brick (4) of vertical wall, the steel core concrete column at cross center (7) is wrapped up, and horizontal wall and joint, cross center start to build by laying bricks or stones with regeneration concrete convex brick (3), to reach the object of fissure of displacement overlap joint; The masonry way of its top brick in this way successively cross-circulation carry out; Form fissure of displacement overlap joint, rabbet good body of wall;
S5 is in the end of body of wall, forms built-in steel core concrete column to concreting in steel pipe.
3. the built-in steel core concrete column T of one according to claim 1 shape regeneration concrete brick blockwork, is characterized in that: steel pipe can adopt Q235, Q345, Q390, Q420 and Q345GJ steel; While adopting Q235, Q345 and Q345GJ steel and operating temperature to be greater than 0 DEG C, can select B level; When operating temperature during higher than-20 DEG C, should be selected C level lower than 0 DEG C; When operating temperature is during lower than-20 DEG C, should select D level; Adopt Q390 and Q420 steel and operating temperature during higher than-20 DEG C, should select D level lower than 0 DEG C; When operating temperature is during lower than-20 DEG C, should select E level.
4. the built-in steel core concrete column T of one according to claim 1 shape regeneration concrete brick blockwork, is characterized in that: the concrete in steel pipe can adopt ordinary concrete and self-compacting concrete, and its strength grade should be lower than C30.
5. the built-in steel core concrete column T of one according to claim 1 shape regeneration concrete brick blockwork, it is characterized in that: in the time of seismic design, the steel of encased structures should meet the following requirements: the yield strength measured value of steel and the ratio of tensile strength measured value should not be greater than 0.85; Steel should have obvious surrender step, and elongation rate should not be less than 20%; Steel should have good weldability and qualified impact toughness.
CN201410146500.6A 2014-04-11 2014-04-11 A kind of built-in steel core concrete column T-shaped regeneration concrete brick blockwork and the practice CN103938761B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104674989A (en) * 2015-03-02 2015-06-03 北京工业大学 Light steel engaged composite insulation lightweight wall assembly type combined shear wall and fabrication method
CN105804293A (en) * 2016-05-09 2016-07-27 天津城建大学 Prefabricated concrete-filled steel tube construction column rammed earth wall

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08158506A (en) * 1994-12-06 1996-06-18 Rochin Shinkawa Ceramics block and manufacture thereof and ceramics block wall
CN101446120A (en) * 2007-11-28 2009-06-03 杨德志 Mould-locking linkage recycled aggregate self-conserving heat plate
ES2363359A1 (en) * 2009-08-04 2011-08-01 Germans Cañet Xirgu, S.L. Method for the realization of gravity walls with prefabricated parts of concrete with recycled ages, and wall obtained by such method. (Machine-translation by Google Translate, not legally binding)
CN103352533A (en) * 2013-07-14 2013-10-16 山东科技大学 Double-concave and one-convex fly-ash aerated concrete block and masonry method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08158506A (en) * 1994-12-06 1996-06-18 Rochin Shinkawa Ceramics block and manufacture thereof and ceramics block wall
CN101446120A (en) * 2007-11-28 2009-06-03 杨德志 Mould-locking linkage recycled aggregate self-conserving heat plate
ES2363359A1 (en) * 2009-08-04 2011-08-01 Germans Cañet Xirgu, S.L. Method for the realization of gravity walls with prefabricated parts of concrete with recycled ages, and wall obtained by such method. (Machine-translation by Google Translate, not legally binding)
CN103352533A (en) * 2013-07-14 2013-10-16 山东科技大学 Double-concave and one-convex fly-ash aerated concrete block and masonry method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104674989A (en) * 2015-03-02 2015-06-03 北京工业大学 Light steel engaged composite insulation lightweight wall assembly type combined shear wall and fabrication method
CN104674989B (en) * 2015-03-02 2018-02-09 北京工业大学 The gently light wall assembled compound shear wall of steel occlusal pattern complex heat-preservation and the practice
CN105804293A (en) * 2016-05-09 2016-07-27 天津城建大学 Prefabricated concrete-filled steel tube construction column rammed earth wall

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