高層建築物頂層之高聳電信微波鐵塔之設計並用容許應力法(ASD)與大陸設計規範檢核其結果

Design of tall Steel Communication Tower with Micro-wave Antennas on the top of Building and checked by ASD and China Specification

李家和(Jia-He Li)

指導教授 ： 鄭金國

中原大學/工學院/土木工程研究所/碩士(2001年)

https://doi.org/10.6840/cycu200100231

摘要

目前通訊業的發展極為迅速，在電波的傳送及接收需不受鄰近高層建築影響的前提下，為了擴大微波通訊鐵塔的通訊範圍並提高通訊品質，因此需要逐漸往高處發展，或直接架設於高層建築頂層，以達到傳輸之功能。而高度越高，水平風荷載的影響就更加重要，對於高聳微波電信鐵塔而言，主要是以順風向風力為主，所以本文採用順風向風力加諸於結構物上來作分析。本文主要是針對設置於高層建築頂層之塔架結構作設計檢核，比較在不同規範的風力作用下對鐵塔的影響，並根據大陸的檢核規範與容許應力法(AISC-ASD)，對塔架的構件進行應力比、側位移以及穩定分析，並進一步探討其中之差異性。透過規範的檢核，可以避免承載能力的不足，或不穩定的情形，以維持其整體的安全性。

關鍵字

穩定分析 ； 容許應力法 ； 順風向

並列摘要

The development of telecommunication business is rapid presently, in order to broaden communicating area and increase quality, it must become taller gradually or directly sited on the top of a tall building to maintain the use of transmission. For the higher of the height, the wind effect is more important. With regard to a tall micro-telecommunication tower, the along-wind load is basic consideration, so it’s used to add on the structure for the analysis of current thesis. The thesis is aimed at the design and examination of the tower sited on a tall building, and to compare the influence of tower under different Code of wind. Also according to China Specification and Allowable Stress Design Code(ASD), we proceed the stress ratio, displacement, stability analysis of tower member and confer the difference. According to the examination of Code, we can avoid the insufficient of bearing capacity or the situation of unstable, and to maintain the safety of whole structure.

並列關鍵字

stability analysis ； allowable stress design ； along-wind

參考文獻

〔23〕 American National Standard Building Code Requirements for

Minimum Design Loads in Building and Structures, ANSI, New York,1982.

〔25〕 AISC, “Manual of Steel Construction-Load&Resistance Factor

Factor for P-δ Effect of Steel Beam-Column”, Journal of

〔27〕 Jack C. McCormac, “Structural Steel Design: LRFD Method”,