Adjacent unit roof spanning deformation joint trestle

Abstract

The utility model provides an adjacent unit roof span deformation joint trestle which comprises a trestle body arranged between a first unit building and a second unit building, the trestle body comprises a platform, the two ends of the platform are hinged to a left ladder section and a right ladder section through pin shafts respectively, the left ladder section is in sliding connection with the first unit building through a first base assembly, and the right ladder section is in sliding connection with the second unit building through a second base assembly. And the right ladder section is in sliding connection with the apartment II through the base assembly II. When the adjacent units are subjected to differential settlement, thermal expansion and cold contraction or the influence of earthquakes and strong wind to cause relative displacement of the adjacent roofs, the deformation joint crossing trestle can move relative to the roofs and the absolute position is not changed, so that the situation that when the trestle is directly and rigidly connected with the roofs, the connection is damaged or the trestle is cracked due to the relative displacement of the adjacent roofs is avoided; the problem that the trestle is damaged due to uneven settlement, thermal expansion and cold contraction or the influence of earthquakes and strong wind when the roof deformation joint crossing trestle is rigidly connected with the roof is solved, and the roof deformation joint crossing trestle is easy and convenient to operate, practical and capable of being widely applied.

Description

Technical Field

[0001] This utility model belongs to the technical field of building roof construction, specifically a trestle bridge spanning the expansion joint of adjacent unit roofs. Background Technology

[0002] In building construction, expansion joints are gaps designed to accommodate deformations caused by temperature changes, earthquakes, settlement, and other factors. The sill of an expansion joint is typically about 600mm higher than the roof surface. When people want to cross from one unit's roof to another through the expansion joint, climbing directly is inconvenient and dangerous; going down and then up from the other unit is time-consuming and troublesome.

[0003] For example, the rooftop crossing bridge for expansion joints disclosed in Chinese utility model patent CN208309361U includes four concrete bases, two steps, and one span. Steps are provided at both the front and back of the span. Concrete bases are provided at the bottom of the steps. Two embedded parts are pre-embedded in the concrete bases, and the two embedded parts are welded to the steps and the span. The span consists of a left railing, a right railing, and a platform plate. The platform plate is located between the left and right railings and is welded to the crossbars of the left and right railings. Railings are welded to both the left and right sides of the span, and handrails are welded to the top of the railings.

[0004] In the aforementioned prior art, people can safely and quickly cross the roofs of adjacent units. However, since the trestle itself is fixedly connected, the connection relationship of the trestle itself may be damaged or the trestle may be torn when the adjacent units experience uneven settlement, thermal expansion and contraction, or relative displacement of the adjacent roofs due to earthquakes and strong winds. Utility Model Content

[0005] To address the shortcomings in the aforementioned background technology, this utility model proposes a trestle bridge spanning the expansion joint of adjacent unit roofs. This solves the problem that when the trestle bridge is rigidly connected to the roof, and when uneven settlement, thermal expansion and contraction, or relative displacement of adjacent roofs occurs due to earthquakes or strong winds, the connection relationship of the trestle bridge itself is damaged or the trestle bridge is torn.

[0006] The technical solution of this application is as follows:

[0007] A roof-crossing expansion joint trestle for adjacent units includes a trestle positioned between two unit buildings. The trestle comprises a platform, with its two ends hinged to a left and right stair section via pins. The left stair section is slidably connected to unit building one via a base assembly one, and the right stair section is slidably connected to unit building two via a base assembly two. The trestle slides via base assemblies one and two, and the platform can freely rotate around the pins and the left and right stair sections at a certain angle. When uneven settlement, thermal expansion and contraction, or relative displacement of adjacent roofs due to earthquakes or strong winds occur between adjacent units, the expansion joint trestle can shift relative to the roof while maintaining its absolute position. This avoids connection failure or cracking of the trestle when rigidly connected to the roof due to relative displacement. This invention solves the problem of trestle damage caused by uneven settlement, thermal expansion and contraction, earthquakes, or strong winds when rigidly connected to the roof. Furthermore, it is simple to operate, practical, and can be widely applied.

[0008] Furthermore, the trestle slides in a first direction via the first base assembly and in a second direction via the second base assembly, wherein the first and second directions are perpendicular to each other in the horizontal direction. The first direction is parallel to the expansion joint, and the second direction is perpendicular to the expansion joint.

[0009] Furthermore, the base assembly includes a parallel U-shaped slide rail, and the support leg of the left stair section slides in cooperation with the U-shaped slide rail.

[0010] Furthermore, the base assembly two includes a parallel U-shaped slide rail two, and the right stair section's support leg two is slidably engaged with the U-shaped slide rail two.

[0011] Furthermore, at least two of each of the U-shaped slide rail one and the U-shaped slide rail two are provided, and at least four of each of the support legs one and the support legs two are provided.

[0012] Furthermore, the first support leg includes a main keel that is inclined in the left stair section and a column that is vertically arranged, and the second support leg includes a main keel that is inclined in the right stair section and a column that is vertically arranged.

[0013] Furthermore, the dimension of the U-shaped slide in the second direction is larger than the dimension of the support leg in the second direction.

[0014] Furthermore, the dimension of the second U-shaped slide in the first direction is larger than the dimension of the second support leg in the first direction.

[0015] Furthermore, the guardrails of the left stair section (section 1), the right stair section (section 2), and the platform (section 3) are all independently installed. When uneven settlement occurs in unit building 1 or unit building 2, causing settlement in the left or right stair section, guardrails 1, 2, and 3 are not connected and do not affect the deformation of the trestle bridge.

[0016] Furthermore, the upper surfaces of both the first and second U-shaped slides are provided with PTFE plates. The PTFE plates have smooth surfaces and extremely low coefficients of friction, which can effectively reduce friction between the slides and the sliding objects and improve sliding efficiency.

[0017] The specific beneficial effects of this utility model include:

[0018] The trestle can slide on the roof via base component one and base component two, and the platform of the trestle can rotate freely around the pivot and the left and right stair sections at a certain angle. When uneven settlement, thermal expansion and contraction, or relative displacement of adjacent roofs caused by earthquakes and strong winds occur between adjacent units, the trestle across the expansion joint can move relative to the roof while its absolute position remains unchanged. This avoids damage to the trestle itself due to relative displacement between adjacent roofs, which could lead to connection failure or cracking of the trestle. This utility model solves the problem of trestle damage caused by uneven settlement, thermal expansion and contraction, or earthquakes and strong winds between the two units. It is also simple to operate, practical, and can be widely used. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a side view of the present invention in use.

[0021] Figure 2 This is a top view of the utility model in use;

[0022] Figure 3 for Figure 2 Enlarged view at point B in the middle;

[0023] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 5 This is a side view of the roof when uneven settlement occurs.

[0025] Explanation of icon numbers:

[0026] 1. Unit 1; 2. Unit 2;

[0027] 3. Staircase; 4. Base component one;

[0028] 5. Base assembly two; 6. Pin; 7. PTFE plate;

[0029] 8. Guardrail 1; 9. Guardrail 2; 10. Guardrail 3;

[0030] 11. One main keel; 12. One upright post;

[0031] 21. Two main keels; 22. Two uprights;

[0032] 31. Platform; 32. Left staircase; 33. Right staircase; 34. Support leg 1;

[0033] 41. U-shaped slide one; 51. U-shaped slide two; 52. Support leg two. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] A type of trestle bridge spanning the expansion joint of adjacent unit roofs, such as Figures 1-5 As shown, a trestle bridge 3 is installed between Unit 1 and Unit 2. The trestle bridge 3 includes a platform 31. The two ends of the platform 31 are respectively hinged to a left stair section 32 and a right stair section 33 via pins 6. The left stair section 32 is slidably connected to Unit 1 via a base assembly 4, and the right stair section 33 is slidably connected to Unit 2 via a base assembly 5. The platform 31 is hinged to the two stair sections via pins 6. The base assemblies 4 and 5 are respectively installed on the roofs on both sides of the expansion joint. The base assembly 4 is parallel to the expansion joint and the base assembly 5 is perpendicular to the expansion joint, or the base assembly 5 is parallel to the expansion joint and the base assembly 4 is perpendicular to the expansion joint. The trestle can slide on the roof via base assembly 4 and base assembly 5. The platform 31 of the trestle can rotate freely around the pivot 6 and the left stair section 31 and right stair section 32 at a certain angle. When uneven settlement, thermal expansion and contraction, or relative displacement of adjacent roofs caused by earthquakes and strong winds occur between adjacent units, the trestle across the expansion joint can move relative to the roof but its absolute position remains unchanged. This avoids damage to the trestle itself due to relative displacement between adjacent roofs, which could lead to connection failure or cracking of the trestle. This utility model solves the problem of trestle damage caused by uneven settlement, thermal expansion and contraction, earthquakes, and strong winds between the two units. It is also simple to operate, practical, and can be widely used.

[0036] Based on the above embodiments, as a preferred embodiment, the trestle 3 slides in a first direction via the base assembly one, and the trestle 3 slides in a second direction via the base assembly two, wherein the first direction and the second direction are perpendicular to each other in the horizontal direction. Specifically, the first direction is parallel to the expansion joint, and the second direction is perpendicular to the expansion joint.

[0037] Based on the above embodiments, as a preferred embodiment, such as... Figure 2 As shown, the base assembly 4 includes a parallel U-shaped slide rail 41, and the support leg 34 of the left stair section 32 is slidably engaged with the U-shaped slide rail 41. The base assembly 5 includes a parallel U-shaped slide rail 51, and the support leg 52 of the right stair section 33 is slidably engaged with the U-shaped slide rail 51.

[0038] Specifically, the first U-shaped slide 41 is fixedly connected to the roof of unit building 1, and the second U-shaped slide 51 is fixedly connected to the roof of unit building 2. At least two of each type of slide are provided, and they are perpendicular to each other. At least four of each type of support leg 34 and support leg 52 are provided. Support legs 34 are located at the four corners of the left stair section 32, and support legs 52 are located at the four corners of the right stair section 33.

[0039] Based on the above embodiments, as a preferred embodiment, such as... Figure 5 As shown, the first support leg 34 includes a main keel 11 inclined in the left stair section 32 and a vertical column 12, and the second support leg 52 includes a main keel 21 inclined in the right stair section 33 and a vertical column 22.

[0040] Specifically, column 12 is connected to the hinged end of main keel 11, and column 22 is connected to the hinged end of main keel 21. A right triangle is formed between main keel 11, the roof of unit building 1, and column 12. A right triangle is also formed between main keel 21, the roof of unit building 2, and column 22.

[0041] Specifically, the cross-sectional dimensions of main keel 11 and main keel 21 can be determined by load calculation, and are generally 50×4mm angle steel. A step 1 is installed between the two main keels 11, and a step 2 is installed between the two main keels 21. The cross-sections of step 1 and step 2 are determined according to the width of the trestle bridge, and are generally 40×4mm angle steel. The platform 31 includes a patterned steel plate laid on its upper surface. The thickness of the patterned steel plate can be determined by load calculation, and is generally 3mm, made of Q235 steel. The strength and cross-sectional dimensions of the pin 6 must meet the load-bearing capacity requirements of the trestle bridge platform.

[0042] Based on the above embodiments, as a preferred embodiment, the dimension of the U-shaped slide 41 in the second direction is larger than the dimension of the support leg 34 in the second direction. The dimension of the U-shaped slide 51 in the first direction is larger than the dimension of the support leg 52 in the first direction.

[0043] Specifically, when the pier moves in the first direction, that is, when support leg 34 slides along the length of U-shaped slide 41 and support leg 52 slides along the width of U-shaped slide 51, support leg 52 is stopped by U-shaped slide 51 after sliding a certain distance, and the entire pier stops moving. Similarly, when the pier moves in the second direction, that is, when support leg 52 slides along the length of U-shaped slide 51 and support leg 34 slides along the width of U-shaped slide 41, support leg 34 is stopped by U-shaped slide 41 after sliding a certain distance, and the entire pier stops moving.

[0044] Based on the above embodiments, as a preferred embodiment, the upper surfaces of both the first U-shaped slide rail 41 and the second U-shaped slide rail 51 are provided with PTFE plates 7. The PTFE plates 7 have smooth surfaces and extremely low coefficients of friction, which can effectively reduce friction between the slide rail and the sliding object and improve sliding efficiency.

[0045] Specifically, the U-shaped slide rail 41 and the U-shaped slide rail 51 are generally made of 10 channel steel and the material is Q235; the thickness of the PTFE plate 7 is generally 4mm, and the PTFE plate 7 covers the upper surface of the U-shaped slide rail 41 and the U-shaped slide rail 51, and its size is the same as the size of the upper surface of the U-shaped slide rail 41 and the U-shaped slide rail 51.

[0046] Based on the above implementation method, as a preferred implementation method, the guardrail 8 of the left stair section 32, the guardrail 9 of the right stair section 33, and the guardrail 10 of the platform 31 are all independently provided, such as... Figure 5 As shown, when uneven settlement occurs in Unit 1 or Unit 2, causing settlement in the left stair section 32 or the right stair section 33, Guardrail 1, Guardrail 2, and Guardrail 3, respectively, are not connected and do not affect the deformation of the trestle bridge.

[0047] Specifically, guardrail 18 is fixed to the main keel of the left stair section 32, guardrail 29 is fixed to the main keel of the right stair section 33, and guardrail 310 is fixed to the checkered steel plate of the platform 31, with a height of generally 900mm.

[0048] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0049] The above content shows and describes the basic principles, main features, and beneficial effects of this utility model. The above description is merely a preferred embodiment of this utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A trestle bridge spanning the expansion joint of adjacent unit roofs, comprising a trestle bridge (3) disposed between unit building one (1) and unit building two (2), characterized in that: The trestle (3) includes a platform (31), the two ends of which are hinged to the left stair section (32) and the right stair section (33) respectively via pins (6). The left stair section (32) is slidably connected to the first unit building (1) via base assembly one (4), and the right stair section (33) is slidably connected to the second unit building (2) via base assembly two (5).

2. The trestle bridge spanning the expansion joint of adjacent unit roofs according to claim 1, characterized in that: The trestle (3) slides in a first direction via the base assembly one, and slides in a second direction via the base assembly two. The first direction and the second direction are perpendicular to each other in the horizontal direction.

3. The trestle bridge spanning the expansion joint of adjacent unit roofs according to claim 1 or 2, characterized in that: The base assembly (4) includes a parallel U-shaped slide rail (41), and the support leg (34) of the left ladder section (32) is slidably engaged with the U-shaped slide rail (41).

4. The trestle bridge spanning the expansion joint of adjacent unit roofs according to claim 3, characterized in that: The base assembly 2 (5) includes a parallel U-shaped slide rail 2 (51), and the support leg 2 (52) of the right ladder section (33) slides in cooperation with the U-shaped slide rail 2 (51).

5. The trestle bridge spanning the expansion joint of adjacent unit roofs according to claim 4, characterized in that: At least two U-shaped slides (41) and two U-shaped slides (51) are provided, and at least four support legs (34) and two support legs (52) are provided.

6. The trestle bridge spanning the expansion joint of adjacent unit roofs according to claim 5, characterized in that: The first support leg (34) includes a main keel (11) inclined in the left stair section (32) and a column (12) vertically arranged. The second support leg (52) includes a main keel (21) inclined in the right stair section (33) and a column (22) vertically arranged.

7. The trestle bridge spanning the expansion joint of adjacent unit roofs according to claim 3, characterized in that: The dimension of the U-shaped slide (41) in the second direction is greater than the dimension of the support leg (34) in the second direction.

8. The trestle bridge spanning the expansion joint of adjacent unit roofs according to claim 4, characterized in that: The dimension of the second U-shaped slide (51) in the first direction is greater than the dimension of the second support leg (52) in the first direction.

9. The trestle bridge spanning the expansion joint of adjacent unit roofs according to any one of claims 1-2 and 4-8, characterized in that: The guardrail 1 (8) of the left stair section (32), the guardrail 2 (9) of the right stair section (33), and the guardrail 3 (10) of the platform (31) are all set independently.

10. The trestle bridge spanning the expansion joint of adjacent unit roofs according to claim 6, characterized in that: The upper surfaces of both the first U-shaped slide (41) and the second U-shaped slide (51) are provided with PTFE plates (7).

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