Fabricated stiff beam structure and method

Abstract

The invention relates to the technical field of buildings, and discloses an assembly type stiff beam structure and method, and the assembly type stiff beam structure comprises I-shaped steel, a cast-in-place slab, a plurality of pairs of U-shaped anchor bars, a pair of beam columns and a pair of positioning blocks. When a stiff beam is assembled, an extrusion block slides towards the side wall of a positioning block, in the sliding process of the extrusion block, the extrusion block drives a rocker arm to push a sliding base to slide towards the side wall of concrete, finally, an insertion rod on the side wall of the sliding base moves synchronously, and at the moment, the insertion rod drives a fixing plate to extrude the side wall of the concrete; the whole stiff beam is located in the center of the two beam columns, in the sliding process of the sliding seats, the positions of the guide slopes on the surfaces of the sliding seats change, the guide slopes extrude the ejector rods, at the moment, the ejector rods slide towards the two sides of the sliding seats under the action of extrusion force, and finally the tail ends of the ejector rods abut against the upper portion and the lower portion of I-shaped steel. The whole I-shaped steel is supported in the vertical direction, so that the I-shaped steel is located in the center of the positioning block, installation is convenient, fine adjustment does not need to be conducted again in the later period, and the installation efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of construction, and in particular relates to an assembled stiff beam structure and method. Background Art

[0002] In the booming trend of contemporary prefabricated buildings, rigid beams, as key load-bearing and connecting components in building structural systems, are widely used in various high-rise buildings, industrial plants and large public buildings. From the perspective of material and structural characteristics, in order to meet the growing demand for building load-bearing capacity, rigid beams usually use a large amount of heavy steel to construct the main structure, and their own weight remains high.

[0003] Therefore, when the rigid beam is moved to the installation position, due to its huge weight and strong inertia, it is difficult to correct the slight position deviation. Traditional manual prying, pulling and other adjustment methods are almost ineffective, and often require the use of multiple small jacks, chain hoists and other auxiliary tools, which consume a lot of manpower to work together. This not only delays the construction progress, but also causes the safety risk factor to soar due to long-term high-altitude operations and cross-cooperation of multiple types of work, which seriously affects the smooth progress of the project, construction quality and economic benefits.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the technical problem of difficulty in correcting slight deviations during the assembly of the rigid beam, the basic concept of the technical solution adopted by the present invention is:

[0006] The utility model discloses an assembled rigid beam structure, which comprises an I-beam, a cast-in-place slab, a plurality of pairs of U-shaped anchor bars, a pair of beam columns and a pair of positioning blocks.

[0007] The outer side wall of the I-beam is poured with concrete;

[0008] The cast-in-place slab is connected to the top of the concrete, and the top of the I-beam is flush with the lower surface of the cast-in-place slab;

[0009] A portion of the U-shaped anchor bars is cast in the concrete, and another portion of the U-shaped anchor bars is cast in the cast-in-place slab, and the U-shaped anchor bars are inserted on the outside of the I-beam, and a plurality of pairs of transverse structural steel bars are installed on the side walls of the U-shaped anchor bars, and a bottom bar is installed on the bottom of the U-shaped anchor bars, and the transverse structural steel bars and the bottom bar are cast in the concrete;

[0010] A pair of beams are respectively connected to two ends of the I-beam;

[0011] An L-shaped plate is installed on each of the positioning blocks, and the L-shaped plate is connected to the side walls of the beam and column, and the positioning block is fitted on the side walls of the I-beam. An extrusion block is movably inserted on the positioning block, and the extrusion block is fitted with the side walls of the I-beam. A rocker arm is rotatably installed on the extrusion block, and a slide seat is movably provided at the end of the rocker arm, and the slide seat is horizontally slidably arranged inside the positioning block. A plug rod is installed on the slide seat, and a fixed plate is installed at the end of the plug rod, and the fixed plate corresponds to the fastening screws arranged on the concrete side wall. A pair of top rods are vertically inserted on the positioning block, and the pair of top rods respectively correspond to the top and bottom of the I-beam, and the bottom of the top rod is fitted with a guide inclined surface arranged on the surface of the slide seat.

[0012] As a preferred embodiment of the present invention, a bending head is provided on the top of the U-shaped anchor bar, and the bending head is cast inside the cast-in-place slab. Binding bars are installed between adjacent U-shaped anchor bars, and the spacing between adjacent U-shaped anchor bars is the same. The I-beam is made of Q355B steel.

[0013] As a preferred embodiment of the present invention, a pair of connecting plates are installed on the side walls of each beam column, the pair of connecting plates are L-shaped, the inner walls of the pair of connecting plates are respectively fitted with the upper surface of the I-beam and the lower surface of the I-beam, and locking bolts are connected between the connecting plates and the I-beam.

[0014] As a preferred embodiment of the present invention, a plurality of pairs of reinforcing ribs are vertically installed at the corners of the L-shaped plate, the reinforcing ribs are triangular in shape, fastening bolts are installed on the surface of the L-shaped plate, and the fastening bolts pass through the mounting holes opened on the side walls of the I-beams, and matching fastening nuts are screwed on the fastening bolts.

[0015] As a preferred embodiment of the present invention, an installation cavity is opened inside the positioning block, the slide seat is slidably arranged in the installation cavity, one end of the extrusion block is placed in the installation cavity, the rocker arm is in an inclined state, and the connection point between the rocker arm and the slide seat is closer to one side of the insertion rod than the connection point between the rocker arm and the extrusion block. A limit rod is movably arranged inside the slide seat, and the end of the limit rod is connected to the side wall of the installation cavity.

[0016] As a preferred embodiment of the present invention, the insertion rod movably penetrates the side wall of the positioning block, a pressure plate is installed at the connection between the insertion rod and the sliding seat, a compression spring is sleeved on the insertion rod, one end of the compression spring is clamped on the side wall of the pressure plate, and the other end of the compression spring is clamped on the side wall of the positioning block.

[0017] As a preferred embodiment of the present invention, a strip groove is opened on the surface of the fixing plate, the strip groove is in a horizontal state, the width of the strip groove is adapted to the diameter of the fastening screw, and the fastening screw is integrally cast in the concrete.

[0018] As a preferred embodiment of the present invention, a reset plate is installed on the surface of the push rod, and a reset spring is sleeved on the push rod. One end of the reset spring is clamped on the reset plate, and the other end of the reset spring is clamped on the inner wall of the positioning block. The reset spring is always in a compressed state.

[0019] As a preferred embodiment of the present invention, a top plate is installed on the top of the top rod, and the top plate is made of rubber. A guide wheel is rotatably installed on the bottom of the top rod, and the guide wheel is rollingly connected to the guide inclined surface. The ends of both sides of the guide inclined surface are connected with planes, and the height of the end of the guide inclined surface close to the insertion rod side is lower than the height of the other end.

[0020] As a preferred embodiment of the present invention, the construction method of the assembled rigid beam structure comprises the following steps:

[0021] Step 1: Prepare the cast-in-place slab and cast the top of the U-shaped anchor bar integrally inside the cast-in-place slab;

[0022] Step 2: Insert the I-beam into the U-shaped anchor bar, ensure that the top of the I-beam fits the bottom of the cast-in-place slab, and install a matching template on the outside of the U-shaped anchor bar, pour concrete into the template, wait for it to solidify and then remove the template. At this time, the cast-in-place slab, I-beam and concrete form a whole;

[0023] Step 3: hoist the prepared whole by a crane, install L-shaped plates on the side walls of the I-beams and the side walls of the beams and columns respectively, and during the assembly process, the distance between the I-beams and the L-shaped plates becomes closer and closer, at which time the extrusion block is squeezed by the I-beams, and then the extrusion block slides toward the side wall of the positioning block;

[0024] Step 4: During the sliding process of the extrusion block, the extrusion block drives the rocker arm to move, and the rocker arm pushes the slide to slide toward the concrete side wall, and finally the plug rod of the slide side wall moves synchronously. At this time, the plug rod drives the fixed plate to slide onto the fastening screw of the concrete side wall, and finally the fixed plate is plugged into the fastening screw. Later, the locking operation is performed through the nut to ensure that the I-beam cannot slide horizontally;

[0025] Step 5: During the sliding process of the slide, the position of the guide slope on the slide surface changes, and the guide slope squeezes the push rod. At this time, the push rod slides to both sides of the slide under the action of the squeezing force, and finally the end of the push rod pushes above and below the I-beam to support the entire I-beam in the vertical direction;

[0026] Step six: Finally, the L-shaped plate and I-beam are fixed and supported by tightening bolts, and a pair of connecting plates are installed above the beam column, and the pair of connecting plates are fixed to the surface of the I-beam by locking bolts, achieving the purpose of stable assembly connection. Finally, rock wool is filled at the connection between the positioning block and the I-beam, and fire-retardant and thermal insulation paint is applied on the outside of the rock wool.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The I-beam and cast-in-place slab of the present invention are formed by pouring U-shaped anchor bars and concrete, wherein transverse structural steel bars and bottom bars are installed on the U-shaped anchor bars. The strength of the connection position is increased by the transverse structural steel bars and bottom bars, and finally the overall bearing capacity of the rigid beam is improved.

[0029] The present invention is to assemble the rigid beam by the extrusion block, and then the extrusion block slides toward the side wall of the positioning block. During the sliding process of the extrusion block, the extrusion block drives the rocker arm to move, and the rocker arm pushes the slide seat to slide toward the concrete side wall, and finally the insertion rod of the slide seat side wall moves synchronously. At this time, the insertion rod drives the fixed plate to slide on the fastening screw of the concrete side wall, and finally the fixed plate squeezes the concrete side wall, so that the entire rigid beam is located at the center position of the two beam columns, and during the sliding process of the slide seat, the position of the guide inclined surface on the surface of the slide seat changes, and the guide inclined surface squeezes the push rod. At this time, the push rod slides to both sides of the slide seat under the action of the extrusion force, and finally the end of the push rod pushes to the top and bottom of the I-beam, supporting the entire I-beam in the vertical direction, so that the I-beam is in the center position of the positioning block, and through the extrusion of the fixed plate and the push rod, the I-beam automatically slides to the center position, which is convenient for installation and does not need to be fine-tuned again at a later time, thereby improving the installation efficiency.

[0030] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In the attached picture:

[0032] Figure 1 It is a three-dimensional structural schematic diagram of a prefabricated rigid beam structure;

[0033] Figure 2 It is a central cross-sectional view of an I-beam of a fabricated rigid beam structure;

[0034] Figure 3 A schematic diagram of pouring concrete on the outer side of an I-beam of an assembled rigid beam structure;

[0035] Figure 4 A prefabricated rigid beam structure Figure 1 Enlarged view of point A in the middle;

[0036] Figure 5 It is a partial structural schematic diagram of a prefabricated rigid beam structure;

[0037] Figure 6 A prefabricated rigid beam structure Figure 5 Assembly drawing;

[0038] Figure 7 A partial cross-section of a positioning block for a prefabricated rigid beam structure Figure 1 ;

[0039] Figure 8 A partial cross-section of a positioning block for a prefabricated rigid beam structure Figure 2 .

[0040] In the figure:

[0041] 1. I-beam; 11. Concrete; 2. Cast-in-place slab; 3. U-shaped anchor bar; 31. Transverse structural steel bar; 32. Bottom bar; 33. Bending head; 34. Binding bar; 4. Beam-column; 41. Connecting plate; 411. Locking bolt; 5. Positioning block; 51. L-shaped plate; 511. Fastening bolt; 512. Reinforcement bar; 513. Installation cavity; 514. Installation hole; 52. Extrusion block; 521. Rocker arm; 522. Slide seat; 523. Limit rod; 53. Insert rod; 531. Pressure plate; 532. Compression spring; 533. Fixing plate; 534. Strip groove; 535. Fastening screw; 54. Push rod; 541. Top plate; 542. Reset plate; 543. Reset spring; 544. Guide wheel; 545. Guide slope; 546. Plane. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0043] Embodiment 1:

[0044] like Figures 1 to 8 As shown, an assembled rigid beam structure includes an I-beam 1, a cast-in-place slab 2, a plurality of pairs of U-shaped anchor bars 3, a pair of beam columns 4 and a pair of positioning blocks 5.

[0045] The outer wall of the I-beam 1 is poured with concrete 11; the cast-in-place slab 2 is connected to the top of the concrete 11, and the top of the I-beam 1 is flush with the lower surface of the cast-in-place slab 2;

[0046] A portion of a plurality of pairs of U-shaped anchor bars 3 is cast inside the concrete 11, and another portion of the U-shaped anchor bars 3 is cast inside the cast-in-place slab 2, and the U-shaped anchor bars 3 are plugged into the outside of the I-beam 1, a plurality of pairs of transverse structural steel bars 31 are installed on the side walls of the U-shaped anchor bars 3, and a bottom bar 32 is installed at the bottom of the U-shaped anchor bars 3, and both the transverse structural steel bars 31 and the bottom bar 32 are cast in the concrete 11;

[0047] The I-beam 1 and the cast-in-place slab 2 are cast by U-shaped anchor bars 3 and concrete 11, wherein the U-shaped anchor bars 3 are installed with transverse structural steel bars 31 and bottom bars 32. The transverse structural steel bars 31 and bottom bars 32 increase the strength of the connection position, thereby ultimately improving the overall bearing capacity of the rigid beam.

[0048] A pair of beams 4 are respectively connected to both ends of the I-beam 1;

[0049] An L-shaped plate 51 is installed on each positioning block 5, and the L-shaped plate 51 is connected to the side wall of the beam column 4, and the positioning block 5 is fitted on the side wall of the I-beam 1. An extrusion block 52 is movably inserted on the positioning block 5, and the extrusion block 52 is fitted with the side wall of the I-beam 1. A rocker arm 521 is rotatably installed on the extrusion block 52, and a slide seat 522 is movably provided at the end of the rocker arm 521, and the slide seat 522 is horizontally slidably arranged inside the positioning block 5, and an insertion rod 53 is installed on the slide seat 522, and a fixing plate 533 is installed at the end of the insertion rod 53, and the fixing plate 533 and the fastening screw 535 set on the side wall of the concrete 11 correspond to each other, and a pair of push rods 54 are vertically inserted on the positioning block 5, and the pair of push rods 54 correspond to the top and bottom of the I-beam 1 respectively, and the bottom of the push rod 54 is fitted with a guide inclined surface 545 set on the surface of the slide seat 522. When assembling the rigid beam, the I-beam 1 slides toward one side of the positioning block 5, the extrusion block 52 is squeezed by the I-beam 1, and slides toward the side wall of the positioning block 5. During the sliding process of the extrusion block 52, the extrusion block 52 drives the rocker arm 521 to move, and the rocker arm 521 pushes the slide 522 to slide toward the side wall of the concrete 11. Finally, the insertion rod 53 on the side wall of the slide 522 moves synchronously. At this time, the insertion rod 53 drives the fixing plate 533 to slide on the fastening screw 535 of the concrete side wall. Finally, the fixing plate 533 squeezes the side wall of the concrete 11, so that the entire rigid beam is located at the center of the two beam columns and rotates on the fastening screw 535. A nut is installed to achieve the positioning effect, and during the sliding process of the slide 522, the position of the guide slope 545 on the surface of the slide 522 changes, and the guide slope 545 will squeeze the push rod 54. At this time, the push rod 54 slides to both sides of the slide 522 under the action of the squeezing force, and finally the end of the push rod 54 pushes to the top and bottom of the I-beam 1, supporting the entire I-beam 1 in the vertical direction, so that the I-beam 1 is in the center position of the positioning block 5, and through the squeezing of the fixing plate 533 and the push rod 54, the I-beam 1 automatically slides to the center position, which is convenient for installation and does not require fine-tuning later, thereby improving the installation efficiency.

[0050] like Figures 1 to 8As shown, in a specific implementation manner, a bending head 33 is provided on the top of the U-shaped anchor bar 3, and the bending head 33 is cast inside the cast-in-place slab 2. The bending head 33 can increase the contact area between the U-shaped anchor bar 3 and the cast-in-place slab 2, thereby improving the connection effect. Binding bars 34 are installed between adjacent U-shaped anchor bars 3, and the spacing between adjacent U-shaped anchor bars 3 is the same. The binding bars 34 are used to ensure that the distance between the U-shaped anchor bars 3 is the same, and the U-shaped anchor bars 3 will not shift during the casting process. The I-beam 1 is made of Q355B steel, thereby improving the structural strength.

[0051] like Figures 1 to 8 As shown, further, a pair of connecting plates 41 are installed on the side walls of each beam column 4, and the pair of connecting plates 41 are L-shaped. The inner walls of the pair of connecting plates 41 are respectively fitted with the upper surface of the I-beam 1 and the lower surface of the I-beam 1, and locking bolts 411 are connected between the connecting plates 41 and the I-beam 1. The movement of the I-beam 1 in the vertical direction is positioned by the connecting plates 41, thereby achieving the purpose of limiting and fixing.

[0052] Embodiment 2:

[0053] The difference between Example 1 and this Example is that: Figures 1 to 8 As shown, a plurality of pairs of reinforcing ribs 512 are vertically installed at the corners of the L-shaped plate 51. The reinforcing ribs 512 are triangular in shape. The triangular reinforcing ribs 512 can increase the structural strength of the L-shaped plate 51. A fastening bolt 511 is installed on the surface of the L-shaped plate 51. The fastening bolt 511 passes through the mounting hole 514 opened on the side wall of the I-beam 1. The fastening bolt 511 is screwed with an adaptive fastening nut, so that the L-shaped plate 51 and the I-beam 1 can be conveniently connected through the fastening bolt 511.

[0054] like Figures 1 to 8 As shown, in a specific embodiment, a mounting cavity 513 is provided inside the positioning block 5, a slide 522 is slidably arranged in the mounting cavity 513, an end of one side of the extrusion block 52 is placed in the mounting cavity 513, a rocker arm 521 is in an inclined state, a connection point between the rocker arm 521 and the slide 522 is closer to one side of the plug rod 53 than a connection point between the rocker arm 521 and the extrusion block 52, a limit rod 523 is movably arranged inside the slide 522, and an end of the limit rod 523 is connected to the side wall of the mounting cavity 513. During the sliding process of the extrusion block 52, the extrusion block 52 drives the rocker arm 521 to move, and the rocker arm 521 pushes the slide 522 to move toward the side of the concrete 11, and at this time the slide 522 moves along the limit rod 523, and the limit rod 523 serves the purpose of guiding and limiting.

[0055] like Figures 1 to 8As shown, further, the plug rod 53 movably penetrates the side wall of the positioning block 5, and a pressure plate 531 is installed at the connection between the plug rod 53 and the slide seat 522. A compression spring 532 is sleeved on the plug rod 53. One end of the compression spring 532 is clamped on the side wall of the pressure plate 531, and the other end of the compression spring 532 is clamped on the side wall of the positioning block 5. After the slide seat 522 slides, the slide seat 522 can squeeze the plug rod 53 on the side wall to move synchronously, and the pressure plate 531 on the plug rod 53 slides in the installation cavity 513, and the compression spring 532 on the plug rod 53 is compressed synchronously, and the compression spring 532 is used to facilitate the later reset operation.

[0056] Embodiment 3:

[0057] The difference between Example 2 and this example is that: Figures 1 to 8 As shown, a strip groove 534 is opened on the surface of the fixing plate 533 , and the strip groove 534 is in a horizontal state. The width of the strip groove 534 is adapted to the diameter of the fastening screw 535 , and the fastening screw 535 is integrally cast in the concrete 11 .

[0058] like Figures 1 to 8 As shown, in a specific embodiment, a reset plate 542 is installed on the surface of the top rod 54, and a reset spring 543 is sleeved on the top rod 54. One end of the reset spring 543 is clamped on the reset plate 542, and the other end of the reset spring 543 is clamped on the inner wall of the positioning block 5. The reset spring 543 is always in a compressed state. A top plate 541 is installed on the top of the top rod 54. The top plate 541 is made of rubber. A guide wheel 544 is rotatably installed at the bottom of the top rod 54. The guide wheel 544 is rollingly connected to the guide slope 545, and the ends of both sides of the guide slope 545 are connected to planes 546. The height of the end of the guide slope 545 close to the insertion rod 53 is lower than the height of the other end. During the sliding process of the slide 522, the position of the guide inclined surface 545 on the surface of the slide 522 changes. At this time, the guide wheel 544 at the bottom of the push rod 54 slides on the surface of the guide inclined surface 545. At this time, the push rod 54 slides to the two sides of the slide 522 under the action of the extrusion force. Finally, the push rod 54 drives the top plate 541 at the end to the top and bottom of the I-beam 1 to support the entire I-beam 1 in the vertical direction. When the push rod 54 moves, the reset plate 542 on the push rod 54 moves synchronously, and the reset plate 542 compresses the reset spring 543, so that the reset operation can be performed later through the reset spring 543.

[0059] The present invention also discloses a construction method of an assembled rigid beam structure, the steps of which are as follows:

[0060] Step 1: Prepare a cast-in-place slab 2, and integrally cast the top of the U-shaped anchor bar 3 inside the cast-in-place slab 2;

[0061] Step 2: Insert the I-beam 1 into the U-shaped anchor bar 3, ensure that the top of the I-beam 1 fits the bottom of the cast-in-place slab 2, and install an adaptive template on the outside of the U-shaped anchor bar 3, pour concrete 11 into the template, wait for it to solidify and then remove the template. At this time, the cast-in-place slab 2, the I-beam 1 and the concrete 11 form a whole;

[0062] Step 3: hoist the prepared whole by a crane, and install L-shaped plates 51 on the side walls of the I-beam 1 to correspond to the side walls of the beam column 4, and during the assembly process, the distance between the I-beam 1 and the L-shaped plate 51 is constantly getting closer, at which time the extrusion block 52 is squeezed by the I-beam 1, and then the extrusion block 52 slides toward the side wall of the positioning block 5;

[0063] Step 4: During the sliding process of the extrusion block 52, the extrusion block 52 drives the rocker arm 521 to move, and the rocker arm 521 pushes the slide seat 522 to slide toward the side wall of the concrete 11, and finally the insertion rod 53 of the side wall of the slide seat 522 moves synchronously, at this time the insertion rod 53 drives the fixing plate 533 to slide onto the fastening screw 535 of the side wall of the concrete 11, and finally the fixing plate 533 is plugged into the fastening screw 535, and the locking operation is performed later by the nut to ensure that the I-beam 1 cannot slide laterally;

[0064] Step 5: During the sliding process of the slide 522, the position of the guide slope 545 on the surface of the slide 522 changes, and the guide slope 545 squeezes the push rod 54. At this time, the push rod 54 slides to both sides of the slide 522 under the action of the squeezing force, and finally the ends of the push rod 54 push against the top and bottom of the I-beam 1 to support the entire I-beam 1 in the vertical direction;

[0065] Step six: Finally, the L-shaped plate 51 and the I-beam 1 are fixed and supported by tightening bolts 511, and a pair of connecting plates 41 are installed above the beam column 4, and the pair of connecting plates 41 and the surface of the I-beam 1 are fixed by locking bolts 411, thereby achieving the purpose of stable assembly connection. Finally, rock wool is filled at the connection between the positioning block 5 and the I-beam 1, and fire-retardant and thermal insulation coating is applied on the outside of the rock wool.

[0066] The implementation principle of the assembled stiff beam structure and method of the present invention is as follows:

[0067] The operator first prepares the cast-in-place slab 2, casts the top of the U-shaped anchor bar 3 integrally inside the cast-in-place slab 2, then inserts the I-beam 1 into the U-shaped anchor bar 3, ensures that the top of the I-beam 1 fits the bottom of the cast-in-place slab 2, and installs a matching template outside the U-shaped anchor bar 3, pours concrete 11 into the template, waits for it to solidify, and then removes the template. At this time, the cast-in-place slab 2, the I-beam 1 and the concrete 11 form a whole. The strength of the connection position is increased by constructing the transverse reinforcement 31 and the bottom reinforcement 32, and finally the overall bearing capacity of the rigid beam is improved.

[0068] Then the operator hoists the prepared whole through a crane, and slides the I-beam 1 toward one side of the two beams 4, so that the side wall of the I-beam 1 and the positioning block 5 on the beam 4 fit together. When the I-beam 1 slides toward the side of the positioning block 5, the I-beam will first squeeze the extrusion block 52 on the side wall of the positioning block 5, so that the extrusion block 52 slides into the installation cavity 513 opened inside the positioning block 5.

[0069] At the same time, during the sliding process of the extrusion block 52, the extrusion block 52 drives the rocker arm 521 to move, and the rocker arm 521 pushes the slide 522 to move toward the side of the concrete 11. At this time, the slide 522 moves along the limit rod 523, and the limit rod 523 serves the purpose of guiding and limiting. Finally, the slide 522 can squeeze the plug rod 53 of the side wall to move synchronously, and the pressure plate 531 on the plug rod 53 slides in the installation cavity 513, and the compression spring 532 on the plug rod 53 is compressed synchronously, and the compression spring 532 facilitates the reset operation later.

[0070] After the insertion rod 53 moves, the insertion rod 53 drives the fixing plate 533 toward the side wall of the concrete 11, and finally the fastening screw 535 can slide on the strip groove 534 of the fixing plate 533, and finally the fixing plate 533 squeezes the concrete 11 to the side wall, so that the entire rigid beam is located at the center position of the two beam columns 4, and a nut is rotatably installed on the fastening screw 535, completing the positioning effect to ensure that the I-beam 1 cannot slide laterally.

[0071] During the sliding process of the slide 522, the position of the guide inclined surface 545 on the surface of the slide 522 changes. At this time, the guide wheel 544 at the bottom of the push rod 54 slides on the surface of the guide inclined surface 545. At this time, the push rod 54 slides to the two sides of the slide 522 under the action of the extrusion force. Finally, the push rod 54 drives the top plate 541 at the end to the top and bottom of the I-beam 1 to support the entire I-beam 1 in the vertical direction. When the push rod 54 moves, the reset plate 542 on the push rod 54 moves synchronously, and the reset plate 542 compresses the reset spring 543, so that the reset operation can be performed later through the reset spring 543.

[0072] Finally, the L-shaped plate 51 and the I-beam 1 are fixedly supported by tightening bolts 511, and a pair of connecting plates 41 are installed above the beam column 4, and the pair of connecting plates 41 are fixed to the surface of the I-beam 1 by locking bolts 411, thereby achieving the purpose of stable assembly connection. Finally, rock wool is filled at the connection between the positioning block 5 and the I-beam 1, and fire-retardant and thermal insulation paint is applied on the outside of the rock wool.

Claims

1. An assembled stiff beam structure, characterized in that: include: An I-beam (1), the outer side wall of which is poured with concrete (11); A pair of beams (4), wherein the pair of beams (4) are respectively connected to two ends of the I-beam (1); A pair of positioning blocks (5), each of the positioning blocks (5) is provided with an L-shaped plate (51), the L-shaped plate (51) and the side wall of the beam column (4) are connected to each other, and the positioning block (5) is fitted on the side wall of the I-beam (1), and an extrusion block (52) is movably inserted on the positioning block (5), the extrusion block (52) is fitted on the side wall of the I-beam (1), a rocker arm (521) is rotatably provided on the extrusion block (52), a slide seat (522) is movably provided at the end of the rocker arm (521), and the slide seat (522) is horizontally slidable. The slide seat (522) is provided with an insertion rod (53), the end of which is provided with a fixing plate (533), the fixing plate (533) and a fastening screw (535) provided on the side wall of the concrete (11) correspond to each other, and a pair of push rods (54) are vertically inserted and provided on the positioning block (5), the pair of push rods (54) correspond to the top and bottom of the I-beam (1) respectively, and the bottom of the push rods (54) is in contact with a guide inclined surface (545) provided on the surface of the slide seat (522).

2. The assembled stiff beam structure according to claim 1, characterized in that: A cast-in-place slab (2), wherein the cast-in-place slab (2) is connected to the top of the concrete (11), and the top of the I-beam (1) is flush with the lower surface of the cast-in-place slab (2); a plurality of pairs of U-shaped anchor bars (3), wherein a portion of the plurality of pairs of U-shaped anchor bars (3) is cast inside the concrete (11), and another portion of the U-shaped anchor bars (3) is cast inside the cast-in-place slab (2), and the U-shaped anchor bars (3) are inserted on the outside of the I-beam (1), and the side walls of the U-shaped anchor bars (3) are provided with a plurality of pairs of transverse structural steel bars (3) 1), a bottom bar (32) is installed at the bottom of the U-shaped anchor bar (3), the transverse structural steel bar (31) and the bottom bar (32) are cast in the concrete (11); a bending head (33) is arranged at the top of the U-shaped anchor bar (3), the bending head (33) is cast inside the cast-in-place slab (2), binding bars (34) are installed between adjacent U-shaped anchor bars (3), the spacing between adjacent U-shaped anchor bars (3) is the same, and the I-beam (1) is made of Q355B steel.

3. The assembled stiff beam structure according to claim 1, characterized in that: A pair of connecting plates (41) are installed on the side wall of each beam column (4), and the pair of connecting plates (41) are both L-shaped. The inner walls of the pair of connecting plates (41) are respectively fitted with the upper surface of the I-beam (1) and the lower surface of the I-beam (1), and locking bolts (411) are connected between the connecting plates (41) and the I-beam (1).

4. The assembled stiff beam structure according to claim 1, characterized in that: A plurality of pairs of reinforcing ribs (512) are vertically installed at the corners of the L-shaped plate (51), and the reinforcing ribs (512) are triangular in shape. Fastening bolts (511) are installed on the surface of the L-shaped plate (51), and the fastening bolts (511) pass through mounting holes (514) provided on the side walls of the I-beam (1), and matching fastening nuts are screwed on the fastening bolts (511).

5. The assembled stiff beam structure according to claim 1, characterized in that: The positioning block (5) has an installation cavity (513) therein, the slide seat (522) is slidably arranged in the installation cavity (513), one end of the extrusion block (52) is placed in the installation cavity (513), the rocker arm (521) is in an inclined state, the connection point between the rocker arm (521) and the slide seat (522) is closer to one side of the insertion rod (53) than the connection point between the rocker arm (521) and the extrusion block (52), a limit rod (523) is movably arranged inside the slide seat (522), and the end of the limit rod (523) is connected to the side wall of the installation cavity (513).

6. The assembled stiff beam structure according to claim 1, characterized in that: The insertion rod (53) movably penetrates the side wall of the positioning block (5); a pressure plate (531) is installed at the connection between the insertion rod (53) and the sliding seat (522); a compression spring (532) is sleeved on the insertion rod (53); one end of the compression spring (532) is clamped on the side wall of the pressure plate (531), and the other end of the compression spring (532) is clamped on the side wall of the positioning block (5).

7. The assembled stiff beam structure according to claim 1, characterized in that: The surface of the fixing plate (533) is provided with a strip groove (534), the strip groove (534) is in a horizontal state, the width of the strip groove (534) is adapted to the diameter of the fastening screw (535), and the fastening screw (535) is integrally cast in the concrete (11).

8. The assembled stiff beam structure according to claim 1, characterized in that: A reset plate (542) is installed on the surface of the push rod (54), and a reset spring (543) is sleeved on the push rod (54). One end of the reset spring (543) is clamped on the reset plate (542), and the other end of the reset spring (543) is clamped on the inner wall of the positioning block (5). The reset spring (543) is always in a compressed state.

9. The assembled stiff beam structure according to claim 1, characterized in that: A top plate (541) is installed on the top of the push rod (54), and the top plate (541) is made of rubber. A guide wheel (544) is rotatably installed on the bottom of the push rod (54), and the guide wheel (544) is rollingly connected to the guide inclined surface (545). The ends of both sides of the guide inclined surface (545) are connected to planes (546), and the height of the end of the guide inclined surface (545) close to the insertion rod (53) is lower than that of the other end.

10. A construction method for an assembled rigid beam structure, characterized in that: Applied to an assembled rigid beam structure as claimed in any one of claims 1 to 9, the construction method of the assembled rigid beam structure comprises the following steps: Step 1: Prepare a cast-in-place slab (2), and integrally cast the top of the U-shaped anchor bar (3) inside the cast-in-place slab (2); Step 2: Insert the I-beam (1) into the U-shaped anchor bar (3), ensure that the top of the I-beam (1) fits the bottom of the cast-in-place slab (2), and install a matching template on the outside of the U-shaped anchor bar (3), pour concrete (11) into the template, wait for it to solidify and then remove the template. At this time, the cast-in-place slab (2), the I-beam (1) and the concrete (11) form a whole. Step 3: The prepared whole is hoisted by a crane, and the side walls of the I-beam (1) are respectively matched with the side walls of the beam column (4) by installing the L-shaped plate (51), and during the assembly process, the distance between the I-beam (1) and the L-shaped plate (51) is continuously shortened, at which time the extrusion block (52) is squeezed by the I-beam (1), and then the extrusion block (52) slides toward the side wall of the positioning block (5); Step 4: During the sliding process of the extrusion block (52), the extrusion block (52) drives the rocker arm (521) to move, and the rocker arm (521) pushes the slide seat (522) to slide toward the side wall of the concrete (11), and finally the insertion rod (53) on the side wall of the slide seat (522) moves synchronously, at this time the insertion rod (53) drives the fixing plate (533) to slide onto the fastening screw (535) on the side wall of the concrete (11), and finally the fixing plate (533) is plugged into the fastening screw (535), and the locking operation is performed later by the nut to ensure that the I-beam (1) cannot slide laterally; Step 5: During the sliding process of the slide seat (522), the position of the guide slope (545) on the surface of the slide seat (522) changes, and the guide slope (545) squeezes the push rod (54). At this time, the push rod (54) slides to both sides of the slide seat (522) under the action of the squeezing force, and finally the ends of the push rod (54) push against the top and bottom of the I-beam (1), thereby supporting the entire I-beam (1) in the vertical direction; Step 6: Finally, the L-shaped plate (51) and the I-beam (1) are fixed and supported by tightening bolts (511), and a pair of connecting plates (41) are installed above the beam column (4), and the pair of connecting plates (41) and the surface of the I-beam (1) are fixed by locking bolts (411), thereby achieving the purpose of stable assembly connection. Finally, rock wool is filled at the connection between the positioning block (5) and the I-beam (1), and the outer side of the rock wool is painted with fire-retardant and thermal insulation paint.

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