# Comparison and Selection of Multiple Construction Schemes for the Large-Span and Heavy-Load Transfer Truss

^{1}

^{2}

^{*}

## Abstract

**:**

## 1. Project Overview

## 2. Comparison and Selection of Multiple Construction Schemes for Transfer Truss

#### 2.1. Design of Large-Span and Heavy-Load-Transfer Truss

#### 2.2. Simplified Model of Construction Scheme

#### 2.3. Single Model of Construction Scheme

#### 2.4. Construction Scheme 3D Model

## 3. Simulation Calculation Based on the Entire Construction Process

#### 3.1. Finite Element Theory during Construction Stage

^{1}K

_{1}U

_{1}= P

_{1}F

_{1}= k

_{1}B

_{1}U

_{1}

^{2}K

_{1}+

^{2}K

_{2})U

_{2}= P

_{2}F

_{2}= k

_{2}B

_{2}U

_{2}

^{n}K

_{1}+

^{n}K

_{2}+ … +

^{n}K

_{n})U

_{n}= P

_{n}F

_{n}= k

_{n}B

_{n}U

_{n}

^{n}K_{i}: The total stiffness matrix of the ith unit block structure.- U
_{i}: The displacement vector of the non-integral structure. - P
_{i}: The node force vector of the ith unit block structure. - k
^{i}: The element stiffness matrix of the non-integral structural component. - B
_{i}: The element number matrix of the non-integral structural component. - F
_{i}: The element internal force vector of the non-integral structural component.

#### 3.2. Construction Process Simulation

#### 3.3. Analysis of Construction Simulation Results

#### 3.4. Results and Discussion

## 4. Conclusions

## 5. Possible Directions for Future Studies

## Author Contributions

## Funding

## Data Availability Statement

## Conflicts of Interest

## References

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Construction Steps | Construction Content | Maximum Vertical Displacement (mm) | Ratio of Deflection to Span | Ratio of Deflection to Span (N/mm^{2}) |
---|---|---|---|---|

Step 1 | The basement construction is completed, and the towers on both sides are constructed to the eighth floor above ground. | 4.96 | 1/10,766 | 15.64 |

Step 2 | Establishment of support and completion of elastic connection construction between the fourth-floor transfer truss on the ground and the core tube shear wall. | 22.51 | 1/2372 | 54.76 |

Step 3 | The construction of the steel frame and cantilever parts in the upper area of the fifth-floor and sixth-floor transfer trusses above ground has been completed. | 34.77 | 1/1536 | 69.16 |

Step 4 | The construction of the steel frame and cantilever parts in the upper area of the fifth-floor and sixth-floor transfer trusses above ground has been completed, and the large diagonal tie rods on both sides have been installed on the sixth floor. The fourth-floor transfer truss above ground has been converted to a rigid connection with the core tube shear wall. | 35.66 | 1/1497 | 74.11 |

Step 5 | Install the left large diagonal tie rod to the seventh floor, remove the support, and complete the construction of the seventh-floor frame and cantilever part. | 36.86 | 1/1449 | 79.06 |

Step 6 | The eighth-floor frame and cantilever section, as well as the core tubes on both sides of the ninth floor and tenth floor, have been constructed layer by layer. | 41.16 | 1/1297 | 84.80 |

Step 7 | The construction of the ninth-floor frame and cantilever parts has been completed layer by layer. | 42.87 | 1/1246 | 88.86 |

Step 8 | The construction of the tenth-floor frame and cantilever parts has been completed layer by layer. | 43.73 | 1/1221 | 92.80 |

Step 9 | The installation of the eleventh-floor frame and the remaining overhanging edge truss has been completed, and the replacement section of the large diagonal tie rod has been replaced. | 44.03 | 1/1213 | 93.73 |

Use Phase | After the construction of the main structure is completed and the stiffness of the concrete floor slab is formed, the standard value of gravity load is applied. | 74.61 | 1/716 | 209.63 |

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## Share and Cite

**MDPI and ACS Style**

Lan, T.; Xing, G.; Qin, G.; Li, Z.; Gao, R.
Comparison and Selection of Multiple Construction Schemes for the Large-Span and Heavy-Load Transfer Truss. *Buildings* **2023**, *13*, 3056.
https://doi.org/10.3390/buildings13123056

**AMA Style**

Lan T, Xing G, Qin G, Li Z, Gao R.
Comparison and Selection of Multiple Construction Schemes for the Large-Span and Heavy-Load Transfer Truss. *Buildings*. 2023; 13(12):3056.
https://doi.org/10.3390/buildings13123056

**Chicago/Turabian Style**

Lan, Tao, Guangjie Xing, Guangchong Qin, Zexu Li, and Ruixiang Gao.
2023. "Comparison and Selection of Multiple Construction Schemes for the Large-Span and Heavy-Load Transfer Truss" *Buildings* 13, no. 12: 3056.
https://doi.org/10.3390/buildings13123056