CN112064844A - Floor system and stair system of building structure of pull masonry system and construction method - Google Patents
Floor system and stair system of building structure of pull masonry system and construction method Download PDFInfo
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- CN112064844A CN112064844A CN202010750470.5A CN202010750470A CN112064844A CN 112064844 A CN112064844 A CN 112064844A CN 202010750470 A CN202010750470 A CN 202010750470A CN 112064844 A CN112064844 A CN 112064844A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- 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
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Abstract
The invention discloses a pull masonry system building structure floor system and a stair system and a construction method, wherein the pull masonry system building structure floor system and the stair system comprise a pull building floor system and a pull building stair; the building system is formed by combining an assembled building beam, an arch block unit and an integral reinforcing cable; the step-by-step stair system consists of a step combined module or an independent arch block unit, a horizontal combined rib and an integral reinforcing cable such as a prestressed system; the invention has the advantages that: the floor system solves the technical and economic problems that the existing building structure floor system and the stair system are low in assembly rate and can not be recycled.
Description
Technical Field
The invention relates to a building structure system, in particular to a building structure floor system and a stair system of a pull masonry system and a construction method, belonging to the field of building structure systems.
Background
The traditional masonry structure system is widely accepted and used in the current building engineering of China because of the mature technology and rich construction experience, but the defects of the traditional masonry structure system are very obvious, such as excessive manual labor intensity, longer construction period and serious resource waste. These drawbacks bring about a great energy consumption and a great environmental impact. Therefore, the change of the existing construction mode and the realization of the novel building industrialization are the inevitable trends of the current national production mode change and the building industry development acceleration. The assembly structure system is greatly popularized due to the advantages of labor intensity saving, short construction period and good energy saving and consumption reduction effects. In recent years, the construction of prefabricated buildings has been vigorously promoted by the country, and the target is that the proportion of the national prefabricated buildings in newly constructed buildings reaches more than 15% by 2020, wherein the emphasis is on promoting more than 20%. With the development of the assembly type, the assembly type building in China has a rapid and rapid progress, but the assembly type building in China is still in a new development stage, and a plurality of problems still exist to be solved urgently, such as: the structural system has the defects of low assembly rate, complex node connection, poor anti-seismic performance and the like, and particularly has the defects of complex and dangerous operation of hoisting components, large workload and the like when the prefabricated components are hoisted and installed, so that the safety and the efficiency of construction are seriously influenced.
Meanwhile, the building stairs play a role in vertical traffic in the building, but play important roles in evacuation and escape when meeting emergency conditions such as fire, earthquake and the like, and are weak parts of the structure for resisting earthquake. The cast-in-place plate type stair is weak in anti-seismic performance and seriously damaged by seismic damage, is a weak part of a structure, and the template is complicated to erect, time-consuming and labor-consuming, so that the construction process with the quality difficult to control and the long construction period can not meet the requirement of green construction. Therefore, the research on the fabricated stairway is very important. By adopting the technology of prefabricating and field installation of the bench plate factory, the quality of the bench plate can be guaranteed, meanwhile, the construction period can be shortened, however, if the large-span bench plate is integrally prefabricated, the dead weight of a single bench plate is too large, the maximum hoisting radius of the bench plate can not meet the construction requirement due to the limitation of the hoisting capacity of the tower crane, and the application of the prefabricated assembled stairway is obviously restricted.
Disclosure of Invention
The invention aims to design a building structure floor system and a stair system of a pull masonry system and a construction method thereof, and solve the technical and economic problems of low assembly rate, incapability of circulation and reutilization and the like of the existing building structure floor system and stair system.
The technical scheme of the invention is as follows:
a pull masonry system building structure floor system and a stair system comprise a pull building floor system and a pull building stair; the building system is formed by combining an assembled building beam, an arch block unit and an integral reinforcing cable; the step-by-step stair system consists of a step combined module or an independent arch block unit, a horizontal combined rib and an integral reinforcing cable such as a prestressed system;
the pulling and building beam is divided into a middle beam and a side enclosing beam, and the beam combination unit is divided into a beam combination unit a, a beam combination unit b and a beam combination unit c;
the beam combination units are tied through reinforcing steel bars and a tying system, after n beam combination units which are perpendicular to the cross section of the beam combination units and are in the same direction are arranged tightly, the reinforcing steel bars pass through the reserved holes in the beam combination units and are tied and fastened at the end parts.
The tie system is composed of a steel bar, an anchorage device and a horizontal clamping and fixing piece. The reinforcing bar has two forms of connection. The connection form is horizontal direction connection, and the connection form is that the connection passes through a horizontal hole reserved in the beam combination unit and ties the n beam units which are connected along the cross section in the horizontal direction. The anchorage device is a tie tool, the reinforcing steel bar penetrating out of one end of the preformed hole of the beam unit block is anchored, the reinforcing steel bar part extending into the beam unit is anchored and tied, the horizontal anchorage device is fixed through the horizontal clamping and fixing piece, and then the horizontal anchorage device is removed.
The beam combination unit a is a unit block of a middle beam, the cross section of the beam combination unit a is an isosceles trapezoid, the side length of the lower bottom edge of the isosceles trapezoid is preferably 300-600mm, the side length of the upper top edge of the isosceles trapezoid is preferably 150-450mm, the height of the isosceles trapezoid is preferably 300-500mm, and the thickness of the isosceles trapezoid is preferably 150-350 mm;
the unit blocks of the middle beam are prefabricated in the direction perpendicular to the cross section and provided with first reserved steel bar holes, the diameter of each first reserved steel bar hole is preferably 6-30mm, the lower portions of the first reserved steel bar holes are preferably reserved at 3-5 equal intervals, and the upper portions of the first reserved steel bar holes are preferably reserved at 1-3 equal intervals under the condition that the thickness of the unit block protective layers is met; the first reserved steel bar hole provides a hole for the combined unit in the construction process through connection of steel bars, and different numbers of steel bars can be inserted into the reserved position in consideration of different stresses; the beam combination unit a is tightly attached in the same direction through a plurality of unit blocks, can be spliced into a beam with any unit block thickness multiple along the thickness direction, and is tied into a building beam by using a steel bar through a first reserved steel bar hole reserved in the beam combination unit a.
The beam combination units b are unit blocks of the transverse boundary beam, namely the beam combination units b are beams corresponding to the transverse boundary beam of the system; the cross section of the beam combination unit b is a right trapezoid, the side length of the lower bottom edge of the right trapezoid is preferably 200-; and second reserved steel bar holes are prefabricated and reserved on the unit blocks of the transverse edge beam in the direction vertical to the cross section, the diameter of each second reserved steel bar hole is preferably 6-30mm, the second reserved steel bar holes are preferably reserved at intervals of 2-4 at the lower part and at intervals of 1-3 at the upper part under the condition that the thickness of the protection layer of the unit blocks is met.
The beam combination unit c is a unit block of the longitudinal edge beam, namely the beam combination unit c is a beam corresponding to the longitudinal edge beam of the system; the cross section of the beam combination unit c is rectangular, the width of the rectangle is 200-; and the unit blocks of the longitudinal edge beam are prefabricated in the direction vertical to the cross section and provided with third reserved steel bar holes, the diameter of each third reserved steel bar hole is preferably 6-30mm, the third reserved steel bar holes are preferably reserved at intervals of 2-4 at the lower part and at intervals of 2-4 at the upper part under the condition that the thickness of the protective layer of the unit block is met.
The section of the filling arch block unit is similar to a trapezoidal section, and the difference from the trapezoidal section is that the shorter trapezoidal edge is in a concave arc shape; the length of the lower ladder-shaped edge of the filling arch block unit is preferably 300-800mm, the maximum height of the cross section is preferably 200-500mm, the minimum height of the cross section is preferably 150-450mm, and the thickness is preferably 150-350 mm; the arch combination unit blocks are arranged in the middle of the two adjacent parallel masonry beams in a downward arc-shaped surface mode, the two side surfaces of each arch combination unit block in the thickness direction are in lap joint with the masonry beams, and the arch combination unit blocks are transversely arranged along the system in a mode that the cross sections of the arch combination unit blocks are attached to the cross sections of the masonry beams.
The step-by-step stair consists of stair step combination units and bidirectional tie bars; the stair combination unit consists of prefabricated trapezoidal concrete members and steel plate supporting legs; the section of the prefabricated trapezoidal concrete member is a right-angled trapezoid, the length of a horizontal right-angled side is preferably 280mm, the length of a vertical right-angled side is preferably 350mm and 550mm, and the thickness is preferably 200 mm and 500 mm; a stair combination unit reserved reinforcing steel bar hole is reserved in the direction perpendicular to the cross section, and provides a channel for inserting and pulling reinforcing steel bars; reserving four fourth reserved steel bar holes in the bench along the direction of the oblique side of the prefabricated trapezoidal concrete member, reserving one fourth reserved steel bar hole on the step surface of the bench and reserving two fourth reserved steel bar holes on the lower part of the bench; the fourth reserved steel bar hole provides a hole channel for inserting and pulling the steel bars.
A construction method for a pull masonry system building structure floor system and a stair system comprises the following steps:
prefabricating each unit block, including prefabricating beam combination unit blocks, stair combination unit blocks, filling arch block unit blocks and other components;
step two, designing the size of the floor according to the use scale of a preset floor, and determining the length of the stay-built beam and the number of filling arch block unit blocks in each floor;
step three, performing the pulling and the building of the middle beam pulling and the building beam at a construction site (see patent number ZL201210202123.4 by utilizing a pulling and building combined building fabricated wallboard mould vehicle), and firstly performing the pulling and the building of the beam combination unit b of the pulling and building beam according to the length of the designed pulling and building beam, namely completing the pulling and the building of the transverse side beam; erecting a special auxiliary support on a construction site, transporting the beam combined unit b modules to a pre-installation position, penetrating tie bars into reserved bar holes reserved at one end of the beam after the modules are arranged tightly, extending out of the other end of the beam, and then tying and fastening the bars;
fourthly, performing tie on the beam combination unit a, namely performing the building of the boundary beam; erecting a scaffold and a beam combination unit block bracket on a construction site, transporting the beam combination unit a modules to a pre-installation position, penetrating tie bars into reserved reinforcing bar holes reserved at one end of a beam after the modules are arranged tightly, extending out from the other end of the beam, and then tying and fastening the reinforcing bars;
step five, performing tie on the beam combination unit c, namely performing the building of the longitudinal side beam; erecting a scaffold and a beam combination unit block bracket on a construction site, transporting the beam combination unit c modules to a pre-installation position, after the modules are arranged tightly, drawing knots from the transverse edge beam on one side of the prefabricated beam combination unit c, penetrating through each beam combination unit c block, extending out from the transverse edge beam on the other end of the beam, and then drawing knots of reinforcing steel bars;
step six, overlapping the filling arch block units to two adjacent masonry beams; installing the filler arch block unit blocks on the masonry beam one by one along the transverse direction of the building;
step seven, erecting a stair support; each stair combination unit adopts an in-situ installation method, a position snapping line of a stair is firstly determined, and then a special support for a stair building arch block unit is erected upwards from a test block at the lowest part;
step eight, mounting the stair combination unit; installing the lowest prefabricated trapezoidal concrete member in place, then erecting a second prefabricated trapezoidal concrete test piece close to the lowest concrete test piece, installing a pin key pipe in an inclined hole between the two test pieces, then erecting a third prefabricated trapezoidal concrete test piece close to the last prefabricated trapezoidal concrete test piece, then installing the pin key pipe again in an inclined hole between the second and third test pieces, and similarly, erecting the nth layer until the erection of the stair section is completed; the pin key pipe is inserted between the two stair units to play a role in shearing resistance.
Step nine, the stair combination units are subjected to drawknot; penetrating steel bars into a steel bar hole and a pin key pipe reserved in the highest precast concrete sample, penetrating the steel bars out of the first precast trapezoidal concrete member at the lowest position, and screwing and fastening the steel bars;
step ten, dismantling the special supporting bracket.
The invention has the beneficial effects that:
(1) the building structure and the function are fused. The invention is a fully assembled masonry structure stressed structure component system, the tension and compression materials are assembled and combined to work together, the floor adopts a structural mode that the tension and compression beams and the filling arch block units bear force together, the stress is concise and clear, the force transmission is reasonable, the floor is thicker relative to the building floor, the sound insulation and energy saving effects are good, the suspended ceiling can be avoided, the materials are saved, and a new structural system form is provided for ensuring the safety;
(2) and reducing emission of construction waste sources. The system is completely in dry connection, adopts modular installation, is produced in a module factory, can be repeatedly used, particularly for low-rise temporary buildings, reduces construction waste which is generated by dismantling and is difficult to separate in the turnover process, ensures the energy conservation and ecological protection of the system in the whole life cycle, saves energy and reduces emission, so the system is also called as a waste system;
(3) and (5) industrial construction of the masonry building on a construction site. The invention has reasonable size of each member, regular connecting parts, convenient manual construction for workers, reduced danger degree of workers in the hoisting process, reduced complexity of mechanical operation, convenient, rapid and flexible field installation and connection, and almost no influence of seasonal construction;
(4) the structure and the construction method adopted by the stair provided by the invention provide the pulling stair with strong damping effect aiming at the current situation that the rigid connection of the traditional stair is damaged in the earthquake, so that the safety and the flexible applicability are improved.
The invention is further illustrated by the following figures and examples.
Drawings
FIG. 1 is a schematic view of a beam assembly unit a according to an embodiment of the present invention;
FIG. 2 is a schematic view of a beam assembly unit a according to an embodiment of the present invention (configuration 2);
FIG. 3 is a schematic view of a beam assembly unit a according to an embodiment of the present invention (configuration 3);
FIG. 4 is a front view of a beam assembly unit a according to an embodiment of the present invention;
FIG. 5 is a front view of beam combination unit a (configuration 2) according to an embodiment of the present invention;
FIG. 6 is a front view of beam combination unit a (configuration 2) according to an embodiment of the present invention;
FIG. 7 is a schematic view of a beam assembly unit b according to an embodiment of the present invention;
FIG. 8 is a schematic view of a beam assembly unit b according to an embodiment of the present invention (configuration 2);
FIG. 9 is a front view of a beam combining unit b according to an embodiment of the present invention;
FIG. 10 is a front view of beam combination unit b (configuration 2) according to an embodiment of the present invention;
FIG. 11 is a schematic view of a fill arch block unit in accordance with an embodiment of the present invention;
FIG. 12 is a front view of a fill arch block unit in accordance with an embodiment of the present invention;
FIG. 13 is a schematic illustration of the transverse beam in place according to an embodiment of the present invention;
FIG. 14 is a schematic view of the floor in place installation of the embodiment of the present invention (three additional longitudinal integral hoops are added on the plane, one on each side and one on the middle);
FIG. 15 is a front view of a floor system in accordance with an embodiment of the present invention after installation;
fig. 16 is a schematic view of a step stair according to an embodiment of the present invention;
fig. 17 is a schematic view of a reinforcement bar of a laid stair according to an embodiment of the present invention;
FIG. 18 is a schematic view of a stair assembly according to an embodiment of the present invention;
FIG. 19 is a front view of a stair assembly unit according to an embodiment of the invention;
fig. 20 is a left side view of a stair unit according to an embodiment of the invention.
Detailed Description
The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.
Example 1
As shown in fig. 1-20, a pull masonry system building structure floor and stair system includes two parts, a pull building floor and a pull building stair; the building floor is formed by combining a building beam and a filling arch block unit; the step-by-step stair consists of stair step arch block units and a tie system (such as prestressed steel bars and anchors);
the tie system mainly comprises a steel bar, an anchorage device, a horizontal clamping piece and an L-shaped steel plate clamping piece; the reinforcing steel bar has two connection forms: the first connection form is horizontal connection, and the first connection form is that the first connection form is horizontal connection, the first connection form penetrates through a horizontal hole reserved in a stair arch block unit, and n (positive integer larger than 0) stair arch block units which are connected along the cross section in the horizontal direction are pulled and tied; the second connection form is that the connection blocks are connected along the inclined direction of the bottom surface of the stair, pass through the inclined holes reserved in the stair step arch block units, and tie the m (positive integer larger than 0) blocks of the stair step arch block units connected along the inclined direction of the bottom surface of the stair.
The anchorage device is a pulling tool, a reinforcing steel bar penetrating out of one end of a preformed hole of a horizontal stair arch block unit block is anchored, a part of the reinforcing steel bar extending into the front of the stair arch block unit is anchored and pulled, the reinforcing steel bar is fixed through the horizontal clamping and fixing piece, and then the horizontal anchorage device is removed.
The L-shaped steel plate clamping piece is of a clamping piece structure in the inclined pulling process and is fixed at two ends of the pulling stair. And reserved holes are formed in two sides of the L-shaped steel plate, and the L-shaped steel plate is used for clamping and fixing the reinforcing steel bars of the floor slab and is connected and fixed with the floor slab through bolts.
The pulling and building beam is divided into a middle beam and a side enclosing beam, and the beam combination unit is divided into a beam combination unit a, a beam combination unit b and a beam combination unit c;
the beam combination units are tied through reinforcing steel bars and a tying system, after n beam combination units which are perpendicular to the cross section of the beam combination units and are in the same direction are arranged tightly, the reinforcing steel bars pass through the reserved holes in the beam combination units and are tied and fastened at the end parts.
The tie system is composed of a steel bar, an anchorage device and a horizontal clamping and fixing piece. The reinforcing bar has two forms of connection. The connection form is horizontal direction connection, and the connection form is that the connection passes through a horizontal hole reserved in the beam combination unit and ties the n beam units which are connected along the cross section in the horizontal direction. The anchorage device is a tie tool, the reinforcing steel bar penetrating out of one end of the preformed hole of the beam unit block is anchored, the reinforcing steel bar part extending into the beam unit is anchored and tied, the horizontal anchorage device is fixed through the horizontal clamping and fixing piece, and then the horizontal anchorage device is removed.
The beam combination unit a is a unit block of a middle beam, the cross section of the beam combination unit a is an isosceles trapezoid, the side length of the lower bottom edge of the isosceles trapezoid is preferably 300-600mm, the side length of the upper top edge of the isosceles trapezoid is preferably 150-450mm, the height of the isosceles trapezoid is preferably 300-500mm, and the thickness of the isosceles trapezoid is preferably 150-350 mm;
the unit blocks (of the middle beam) are prefabricated in the direction perpendicular to the cross section and provided with first reserved steel bar holes, the diameter of each first reserved steel bar hole is preferably 6-30mm, the lower portions of the first reserved steel bar holes are preferably reserved at 3-5 equal intervals, and the upper portions of the first reserved steel bar holes are preferably reserved at 1-3 equal intervals under the condition that the thickness of a unit block protective layer is met; the first reserved steel bar hole provides a hole for connecting the combined units (including all combined blocks in the same transverse direction) in the construction process through steel bars, and different numbers of steel bars can be inserted into the reserved positions in consideration of different stress; the beam combination unit a is a beam which is tightly attached in the same direction through a plurality of unit blocks and can be spliced into any unit block with multiple thickness along the thickness direction, and steel bars are tied after passing through first reserved steel bar holes reserved in the beam combination unit a (the beam combination unit a is a middle beam module, and the beam combination unit block b is a side beam module) to tie the beam combination unit a into a masonry beam.
The beam combination units b are unit blocks of the transverse boundary beam, namely the beam combination units b are beams corresponding to the transverse boundary beam of the system; the cross section of the beam combination unit b is a right trapezoid, the side length of the lower bottom edge of the right trapezoid is preferably 200-; and second reserved steel bar holes are prefabricated in the direction perpendicular to the cross section of the unit blocks (of the transverse edge beam), the diameter of each second reserved steel bar hole is preferably 6-30mm, the positions of the second reserved steel bar holes are preferably reserved at 2-4 equal intervals on the lower part and 1-3 equal intervals on the upper part under the condition that the thickness of a protective layer of the unit blocks is met.
The beam combination unit c is a unit block of the longitudinal edge beam, namely the beam combination unit c is a beam corresponding to the longitudinal edge beam of the system; the cross section of the beam combination unit c is rectangular, the width of the rectangle is 200-; and third reserved steel bar holes are prefabricated in the direction perpendicular to the cross section of the unit blocks (of the longitudinal edge beam), the diameter of each third reserved steel bar hole is preferably 6-30mm, the positions of the third reserved steel bar holes are preferably reserved at intervals of 2-4 at the lower part and at intervals of 2-4 at the upper part under the condition that the thickness of a protective layer of the unit blocks is met.
The first reserved reinforcing steel bar hole, the second reserved reinforcing steel bar hole, the third reserved reinforcing steel bar hole and the fourth reserved reinforcing steel bar hole are respectively unit holes corresponding to different unit blocks.
The section of the filling arch block unit is similar to a trapezoidal section, and the difference from the trapezoidal section is that the shorter trapezoidal edge is in a concave arc shape; the length of the lower trapezoid edge of the filling arch block unit is preferably 800mm, the maximum height of the cross section (namely the height of the concave arc at the corner and the lower trapezoid edge) is preferably 500mm, the minimum height of the cross section (namely the distance between the arc at the central axis of the concave arc and the trapezoid edge) is preferably 450mm, and the thickness is preferably 350 mm; the arch combination unit blocks are arranged at the middle parts of the two adjacent parallel masonry beams (namely, the middle parts of the two parallel middle beams) with arc-shaped surfaces facing downwards, the two side surfaces of the arch combination unit blocks along the thickness direction are in lap joint with the masonry beams, and the arch combination unit blocks are transversely arranged along a system in a way that the cross sections are attached to the cross sections.
The pull-built stair is composed of stair combination units and pull-bonded reinforcing steel bars; the stair combination unit consists of prefabricated trapezoidal concrete members and steel plate supporting legs; the section of the prefabricated trapezoidal concrete member is a right-angled trapezoid, the length of a horizontal right-angled side is preferably 280mm, the length of a vertical right-angled side is preferably 350mm and 550mm, and the thickness is preferably 200 mm and 500 mm; a stair combination unit reserved reinforcing steel bar hole is reserved in the direction perpendicular to the cross section, and provides a channel for inserting and pulling reinforcing steel bars; reserving four fourth reserved steel bar holes in the bench along the direction of the oblique side of the prefabricated trapezoidal concrete member, reserving two fourth reserved steel bar holes on the step surface of the bench respectively, and reserving two fourth reserved steel bar holes on the lower part of the bench; the fourth reserved steel bar hole provides a hole channel for inserting and pulling the steel bars.
A construction method for a pull masonry system building structure floor system and a stair system comprises the following steps:
prefabricating each unit block, including prefabricating beam combination unit blocks, stair combination unit blocks, filling arch block unit blocks and other components;
step two, designing the size of the floor according to the use scale of a preset floor, and determining the length of the stay-built beam and the number of filling arch block unit blocks in each floor;
step three, performing the pulling and the building of the middle beam pulling and the building beam at a construction site (see patent number ZL201210202123.4 by utilizing a pulling and building combined building fabricated wallboard mould vehicle), and firstly performing the pulling and the building of the beam combination unit b of the pulling and building beam according to the length of the designed pulling and building beam, namely completing the pulling and the building of the transverse side beam; erecting a special auxiliary support on a construction site, transporting the beam combined unit b modules to a pre-installation position, penetrating tie bars into reserved bar holes reserved at one end of the beam after the modules are arranged tightly, extending out of the other end of the beam, and then tying and fastening the bars;
fourthly, performing tie on the beam combination unit a, namely performing the building of the boundary beam; erecting a scaffold and a beam combination unit block bracket on a construction site, transporting the beam combination unit a modules to a pre-installation position, penetrating tie bars into reserved reinforcing bar holes reserved at one end of a beam after the modules are arranged tightly, extending out from the other end of the beam, and then tying and fastening the reinforcing bars;
step five, performing tie on the beam combination unit c, namely performing the building of the longitudinal side beam; erecting a scaffold and a beam combination unit block bracket on a construction site, transporting the beam combination unit c modules to a pre-installation position, after the modules are arranged tightly, drawing knots from the transverse edge beam on one side of the prefabricated beam combination unit c, penetrating through each beam combination unit c block, extending out from the transverse edge beam on the other end of the beam, and then drawing knots of reinforcing steel bars;
step six, overlapping the filling arch block units to two adjacent masonry beams; installing the filler arch block unit blocks on the masonry beam one by one along the transverse direction of the building;
step seven, erecting a stair support; each stair combination unit adopts an in-situ installation method, a position snapping line of a stair is firstly determined, and then a special support for a stair building arch block unit is erected upwards from a test block at the lowest part;
step eight, mounting the stair combination unit; installing the lowest prefabricated trapezoidal concrete member in place, then erecting a second prefabricated trapezoidal concrete test piece close to the lowest concrete test piece, installing a pin key pipe in an inclined hole between the two test pieces, then erecting a third prefabricated trapezoidal concrete test piece close to the last prefabricated trapezoidal concrete test piece, then installing the pin key pipe again in an inclined hole between the second and third test pieces, and similarly, erecting the nth layer until the erection of the stair section is completed; the pin key pipe is inserted between the two stair units to play a role in shearing resistance.
Step nine, the stair combination units are subjected to drawknot; penetrating steel bars into a steel bar hole and a pin key pipe reserved in the highest precast concrete sample, penetrating the steel bars out of the first precast trapezoidal concrete member at the lowest position, and screwing and fastening the steel bars;
step ten, dismantling the special supporting bracket.
Claims (9)
1. The utility model provides a draw masonry system building structure superstructure and stair system which characterized in that: the building structure floor system and the stair system of the brickwork system comprise two parts of a building floor system and a stair system; the building floor is formed by combining a building beam and a filling arch block unit; the step-by-step stair is composed of stair step arch block units, a tie system such as prestressed steel bars and an anchorage device.
2. The system of claim 1, wherein the system comprises: the pulling and building beam is divided into a middle beam and a side enclosing beam, and the beam combination unit is divided into a beam combination unit a, a beam combination unit b and a beam combination unit c;
the beam combination units are tied through reinforcing steel bars and a tying system, after n beam combination units which are perpendicular to the cross section of the beam combination units and are in the same direction are arranged tightly, the reinforcing steel bars pass through the reserved holes in the beam combination units and are tied and fastened at the end parts.
3. The system of claim 2, wherein the system comprises: the tie system consists of a steel bar, an anchorage device and a horizontal clamping and fixing piece; the reinforcing steel bars are connected in the horizontal direction, penetrate through the reserved horizontal holes of the beam combination units and tie the n beam units connected along the cross section in the horizontal direction; the anchorage device is a tie tool, the reinforcing steel bar penetrating out of one end of the preformed hole of the beam unit block is anchored, the reinforcing steel bar part extending into the beam unit is anchored and tied, the horizontal anchorage device is fixed through the horizontal clamping and fixing piece, and then the horizontal anchorage device is removed.
4. The system of claim 2, wherein the system comprises: the beam combination unit a is a unit block of a middle beam, the cross section of the beam combination unit a is in an isosceles trapezoid shape, the side length of the lower bottom edge of the isosceles trapezoid is 600mm, the side length of the upper top edge is 150 mm and 450mm, the height is 300mm and 500mm, and the thickness is 150 mm and 350 mm;
the unit blocks of the middle beam are prefabricated in the direction vertical to the cross section and provided with first reserved steel bar holes, the diameter of each first reserved steel bar hole is 6-30mm, the lower parts of the first reserved steel bar holes are reserved at equal intervals in a 3-5 mode, and the upper parts of the first reserved steel bar holes are reserved at equal intervals in a 1-3 mode under the condition that the thickness of the protection layer of the unit blocks is met; the first reserved steel bar hole provides a hole for the connection of the combined unit through the steel bars in the construction process; the beam combination unit a is tightly attached in the same direction through a plurality of unit blocks, the beams with the thickness multiple of any unit block are spliced in the thickness direction, reinforcing steel bars are tied through first reserved reinforcing steel bar holes reserved in the beam combination unit a, and the beam combination unit a is tied into a tied beam.
5. The system of claim 2, wherein the system comprises: the beam combination units b are unit blocks of the transverse boundary beam, namely the beam combination units b are beams corresponding to the transverse boundary beam of the system; the cross section of the beam combination unit b is in a right-angle trapezoid, the side length of the lower bottom edge of the right-angle trapezoid is 200-400 mm, the side length of the upper top edge of the right-angle trapezoid is 100-500 mm, the height of the right-angle trapezoid is 300-350 mm, and the thickness of the right-angle trapezoid is 150-350 mm; and the unit blocks of the transverse edge beam are prefabricated in the direction vertical to the cross section and provided with second reserved steel bar holes, the diameter of each second reserved steel bar hole is 6-30mm, the positions of the second reserved steel bar holes meet the condition that the thickness of a protection layer of the unit blocks, the lower parts of the second reserved steel bar holes are reserved at intervals of 2-4, and the upper parts of the second reserved steel bar holes are reserved at intervals of 1-3.
6. The system of claim 2, wherein the system comprises: the beam combination unit c is a unit block of the longitudinal edge beam, namely the beam combination unit c is a beam corresponding to the longitudinal edge beam of the system; the cross section of the beam combination unit c is rectangular, the width of the rectangle is 200-; and the unit blocks of the longitudinal edge beam are prefabricated in the direction vertical to the cross section and provided with third reserved steel bar holes, the diameter of each third reserved steel bar hole is 6-30mm, the third reserved steel bar holes are arranged at the positions 2-4 equal intervals on the lower part and 2-4 equal intervals on the upper part under the condition that the thickness of the protection layer of the unit block is met.
7. The system of claim 1, wherein the system comprises: the section of the filling arch block unit is similar to a trapezoidal section, and the difference from the trapezoidal section is that the shorter trapezoidal edge is in a concave arc shape; the length of the lower trapezoidal edge of the filling arch block unit is 800mm, the maximum height of the section is 200 mm, 500mm, the minimum height of the section is 150 mm, 450mm and the thickness is 150 mm, 350 mm; the arch combination unit blocks are arranged in the middle of the two adjacent parallel masonry beams in a downward arc-shaped surface mode, the two side surfaces of each arch combination unit block in the thickness direction are in lap joint with the masonry beams, and the arch combination unit blocks are transversely arranged along the system in a mode that the cross sections of the arch combination unit blocks are attached to the cross sections of the masonry beams.
8. The system of claim 1, wherein the system comprises: the pull-built stair is composed of stair combination units and pull-bonded reinforcing steel bars; the stair combination unit consists of prefabricated trapezoidal concrete members and steel plate supporting legs; the section of the prefabricated trapezoidal concrete member is a right-angled trapezoid, the length of a horizontal right-angled side is preferably 280mm, the length of a vertical right-angled side is preferably 350mm and 550mm, and the thickness is preferably 200 mm and 500 mm; a stair combination unit reserved reinforcing steel bar hole is reserved in the direction perpendicular to the cross section, and provides a channel for inserting and pulling reinforcing steel bars; the steel plate supporting leg extends outwards from the trapezoidal inclined edge of the section of the trapezoidal combined unit perpendicular to the section direction, and is used for additionally supporting the previous stair combined unit; reserving four fourth reserved steel bar holes in the bench along the direction of the oblique side of the prefabricated trapezoidal concrete member, reserving two fourth reserved steel bar holes on the step surface of the bench respectively, and reserving two fourth reserved steel bar holes on the lower part of the bench; the fourth reserved steel bar hole provides a hole channel for inserting and pulling the steel bars.
9. A method of constructing a floor and staircase system for a masonry system building structure according to any of claims 1 to 8, characterised in that it comprises the steps of:
prefabricating each unit block, including prefabricating beam combination unit blocks, stair combination unit blocks, filling arch block unit blocks and other components;
step two, designing the size of the floor according to the use scale of a preset floor, and determining the length of the stay-built beam and the number of filling arch block unit blocks in each floor;
step three, performing the tie of the middle beam building beam on a construction site, and according to the length of the designed building beam, firstly performing the tie of the beam combination unit b of the building beam, namely completing the building of the transverse boundary beam; erecting a special auxiliary support on a construction site, transporting the beam combined unit b modules to a pre-installation position, penetrating tie bars into reserved bar holes reserved at one end of the beam after the modules are arranged tightly, extending out of the other end of the beam, and then tying and fastening the bars;
fourthly, performing tie on the beam combination unit a, namely performing the building of the boundary beam; erecting a scaffold and a beam combination unit block bracket on a construction site, transporting the beam combination unit a modules to a pre-installation position, penetrating tie bars into reserved reinforcing bar holes reserved at one end of a beam after the modules are arranged tightly, extending out from the other end of the beam, and then tying and fastening the reinforcing bars;
step five, performing tie on the beam combination unit c, namely performing the building of the longitudinal side beam; erecting a scaffold and a beam combination unit block bracket on a construction site, transporting the beam combination unit c modules to a pre-installation position, after the modules are arranged tightly, drawing knots from the transverse edge beam on one side of the prefabricated beam combination unit c, penetrating through each beam combination unit c block, extending out from the transverse edge beam on the other end of the beam, and then drawing knots of reinforcing steel bars;
step six, overlapping the filling arch block units to two adjacent masonry beams; installing the filler arch block unit blocks on the masonry beam one by one along the transverse direction of the building;
step seven, erecting a stair support; each stair combination unit adopts an in-situ installation method, a position snapping line of a stair is firstly determined, and then a special support for a stair building arch block unit is erected upwards from a test block at the lowest part;
step eight, mounting the stair combination unit; mounting the lowest prefabricated trapezoidal concrete member in place, then erecting a second prefabricated trapezoidal concrete test piece close to the lowest prefabricated trapezoidal concrete test piece, then erecting a third prefabricated trapezoidal concrete test piece close to the previous prefabricated trapezoidal concrete test piece, and similarly, erecting the nth layer until the erection of the stair sections is completed;
step nine, the stair combination units are subjected to drawknot; penetrating a reinforcing steel bar into a reinforcing steel bar hole reserved in the section of the precast concrete sample at the highest position, penetrating the reinforcing steel bar out of the first precast trapezoidal concrete member at the lowest position, and screwing and fastening the reinforcing steel bar;
step ten, dismantling the special matched support C.
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| CN2157243Y (en) * | 1993-05-22 | 1994-02-23 | 吉首市建筑建材科学研究所 | Small block combined floor slab |
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| CN112064844B (en) | 2022-03-11 |
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