INVESTIGATION OF FIXED END MOMENTS UNDER INCREASED LOAD IN STRUCTURAL ELASTOPLASTIC STEEL FRAMES

Harika Fatma Açıksarı; Hatip Tok

Makale detayları

INVESTIGATION OF FIXED END MOMENTS UNDER INCREASED LOAD IN STRUCTURAL ELASTOPLASTIC STEEL FRAMES

Yazarlar:

Harika Fatma Açıksarı | Hatip Tok

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

İnşaat Mühendisliği

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 1, pp.394-410

Belge Tipi:

Makale

Yayın Tarihi:

3/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001285502

pISSN:

1308-6693

Anahtar kelimeler:

Özet:

 In this study, the change of the fix end moments in the structural systems with elastoplastic material was investigated for beyond elastic behavior. Accordingly, the fix end moments of an element during the hinging have been calculated. During the load increase, beyond elastic behavior occur in the sections of the elements forming the structural system. This should be taken into account in the Structural Analysis of the system. SOMEP and SOEP analysis program, which is a doctoral study, was used to compute this state. In this study, an analysis method was developed to compute the fix end moments by obtaining section plasticization ratio which takes into account the beyond elastic states of the sections. This method was added to the SOMEP analysis program. Section plasticization ratio is a concept that gives the plasticization rate of the section which is the beyond elastic condition. In the analysis, the relations of indicating the change of fix end moments were revealed. The results obtained were presented in graph and charts. The material used was considered as the ideal elastoplastic material. In the study, nonlinear structural analysis of plane frames was performed by second order elasto-plastic analysis. In the examination of nonlinear analysis, in terms of materials and geometry, it was assumed that the plastic sections are accepted as a plastic hinge.

 In this study, the change of the fix end moments in the structural systems with elastoplastic material was investigated for beyond elastic behavior. Accordingly, the fix end moments of an element during the hinging have been calculated. During the load increase, beyond elastic behavior occur in the sections of the elements forming the structural system. This should be taken into account in the Structural Analysis of the system. SOMEP and SOEP analysis program, which is a doctoral study, was used to compute this state. In this study, an analysis method was developed to compute the fix end moments by obtaining section plasticization ratio which takes into account the beyond elastic states of the sections. This method was added to the SOMEP analysis program. Section plasticization ratio is a concept that gives the plasticization rate of the section which is the beyond elastic condition. In the analysis, the relations of indicating the change of fix end moments were revealed. The results obtained were presented in graph and charts. The material used was considered as the ideal elastoplastic material. In the study, nonlinear structural analysis of plane frames was performed by second order elasto-plastic analysis. In the examination of nonlinear analysis, in terms of materials and geometry, it was assumed that the plastic sections are accepted as a plastic hinge.

 In this study, the change of the fix end moments in the structural systems with elastoplastic material was investigated for beyond elastic behavior. Accordingly, the fix end moments of an element during the hinging have been calculated. During the load increase, beyond elastic behavior occur in the sections of the elements forming the structural system. This should be taken into account in the Structural Analysis of the system. SOMEP and SOEP analysis program, which is a doctoral study, was used to compute this state. In this study, an analysis method was developed to compute the fix end moments by obtaining section plasticization ratio which takes into account the beyond elastic states of the sections. This method was added to the SOMEP analysis program. Section plasticization ratio is a concept that gives the plasticization rate of the section which is the beyond elastic condition. In the analysis, the relations of indicating the change of fix end moments were revealed. The results obtained were presented in graph and charts. The material used was considered as the ideal elastoplastic material. In the study, nonlinear structural analysis of plane frames was performed by second order elasto-plastic analysis. In the examination of nonlinear analysis, in terms of materials and geometry, it was assumed that the plastic sections are accepted as a plastic hinge.

 Bu çalışmada elastoplastik malzemeli taşıyıcı sistemlerdeki ankastrelik momentlerinin değişimi, elastik ötesi davranış için incelenmiştir. Buna bağlı olarak bir elemanın mafsallaşma esnasındaki ankastrelik momentleri hesaplanmıştır. Yük artımı esnasında taşıyıcı sistemi oluşturan eleman kesitlerinde elastik ötesi davranışlar meydana gelmektedir. Bu durum sistem analizi esnasında dikkate alınmalıdır. Bu hali hesaplayan, doktora çalışması olan SOMEP ve SOEP analiz programı kullanılmıştır. Bu çalışmada, kesitlerin elastik ötesi davranışlarını dikkate alan kesit plastikleşme oranı elde edilerek, ankastrelik momentlerini hesaplayan bir analiz yöntemi geliştirilmiştir. Bu yöntem SOMEP analiz programına eklenmiştir. Kesit plastikleşme oranı elastik ötesi davranış olan kesitin plastikleşme oranını veren bir kavramdır. Çubuk uçlarındaki kesit plastikleşme oranını hesaplayan bağıntılar ortaya konularak analizler geliştirilmiştir. Elde edilen sonuçlar grafik ve tablolar halinde sunulmuştur. Kullanılan malzeme ideal elasto-plastik malzeme olarak kabul edilmiştir. Çalışmada düzlem çerçevelerin ikinci mertebe elasto-plastik hesabı ile doğrusal olmayan analizi yapılmıştır. Malzeme ve geometri bakımından doğrusal olmayan analizler incelenirken, çubuk uçlarında oluşan kesit plastikleşmesi plastik mafsal olarak kabul edilmiştir.

Makale detayları

INVESTIGATION OF FIXED END MOMENTS UNDER INCREASED LOAD IN STRUCTURAL ELASTOPLASTIC STEEL FRAMES

Yazarlar:

Harika Fatma Açıksarı | Hatip Tok

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

İnşaat Mühendisliği

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 1, pp.394-410

Belge Tipi:

Makale

Yayın Tarihi:

3/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001285502

pISSN:

1308-6693

Elasto-Plastic

Section Plasticization Ratio

Nonlinear Analysis

Fix End Moment

Elasto-Plastik

Kesit Plastikleşme Oranı

Nonlineer Analiz

Ankastrelik Moment

Sayı

Makale detayları

Yazarlar: Harika Fatma Açıksarı | Hatip Tok

Yayıncı: Süleyman Demirel University

Ana Başlıklar: İnşaat Mühendisliği

Dergi: Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 1, pp.394-410

Belge Tipi: Makale

Yayın Tarihi: 3/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001285502

pISSN: 1308-6693

Sayı

Yazarlar:

Harika Fatma Açıksarı | Hatip Tok

Yayıncı:

Süleyman Demirel University

Ana Başlıklar:

İnşaat Mühendisliği

Dergi:

Mühendislik Bilimleri ve Tasarım Dergisi Vol.11 Issue 1, pp.394-410

Belge Tipi:

Makale

Yayın Tarihi:

3/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001285502

pISSN:

1308-6693